22 Jun
2014
22 Jun
'14
12:01 p.m.
Hey everyone!
For more than a year I am producing a skeptic-oriented podcast. So far it's
been an offline venture. We have a nice audio mixer from Yamaha that we are
recording as one track into Qtractor.
However, I am thinking towards live streaming and accepting calls from
listeners. Is this realistic with Linux? If yes - can anyone suggest how?
--
Louigi Verona
http://www.louigiverona.ru/
22 Jun
22 Jun
12:21 p.m.
On Sun, Jun 22, 2014 at 02:01:19PM +0400, Louigi Verona wrote:
For more than a year I am producing a skeptic-oriented
podcast. So far it's
been an offline venture. We have a nice audio mixer from Yamaha that we are
recording as one track into Qtractor.
However, I am thinking towards live streaming and accepting calls from
listeners. Is this realistic with Linux? If yes - can anyone suggest how?
If you use the POTS you need an interface that provides transformer
isolation, the correct impedance on the telephone line, and that
removes as much as possible of the outgoing signal from the incoming
one. Could be expensive. It is possible to hack together such a thing
using relatively simple electronics (done it), but using such a device
woul break the terms of use of your telco - they usually want a certified
unit (for good reasons).
If you use a cellular phone you need something like this:
<http://www.jkaudio.com/daptor2.htm> to connect the phone
to a sound card.
In both cases on the mixer you need to create an 'N-1' bus,
which has all the inputs from your main mix except the
signal from the phone. This is what you send back to the
phone. You also need some way to talk to the caller before
he/she goes on air, zita-mu1 could come in handy for this.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
12:22 p.m.
Technically there likely is a way. I wanted to make Internet radio, but
I never did it regarding to legal issues. JFTR I made citizen radio in
Germany and it already caused serious legal issues, not regarding to
collecting societies, but regarding to freedom of speech.
For example, if there should be no doubt about the fact that a nation
should kill people, you're not allowed to point this out in Germany,
it's a crime, since it does touch the sovereignty of a state and we are
not allowed to do it. Somebody now might claim, that such crimes are
made public each day by official radio stations in Germany. Yes, but
it's a long way and does cause a lot of trouble, if it should be against
the policy, e.g. Germany makes lots of money by selling weapons and
Germany needs the jobs. IOW it does matter what facts you point out on
air.
Good luck!
Ralf
12:30 p.m.
I am not able to use the telephone line. I can rely only on Skype or
similar online services for calls, unfortunately. I should have mentioned
that, but I did not know someone is using an actual phone for it nowadays.
On Sun, Jun 22, 2014 at 2:21 PM, Ralf Mardorf <ralf.mardorf(a)rocketmail.com>
wrote:
Technically there likely is a way. I wanted to make
Internet radio, but
I never did it regarding to legal issues. JFTR I made citizen radio in
Germany and it already caused serious legal issues, not regarding to
collecting societies, but regarding to freedom of speech.
For example, if there should be no doubt about the fact that a nation
should kill people, you're not allowed to point this out in Germany,
it's a crime, since it does touch the sovereignty of a state and we are
not allowed to do it. Somebody now might claim, that such crimes are
made public each day by official radio stations in Germany. Yes, but
it's a long way and does cause a lot of trouble, if it should be against
the policy, e.g. Germany makes lots of money by selling weapons and
Germany needs the jobs. IOW it does matter what facts you point out on
air.
Good luck!
Ralf
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
--
Louigi Verona
http://www.louigiverona.ru/
12:36 p.m.
On Sun, 2014-06-22 at 12:21 +0200, Ralf Mardorf wrote:
Technically there likely is a way. I wanted to make
Internet radio, but
I never did it regarding to legal issues. JFTR I made citizen radio in
Germany and it already caused serious legal issues, not regarding to
collecting societies, but regarding to freedom of speech.
For example, if there should be no doubt about the fact that a nation
should kill people, you're not allowed to point this out in Germany,
it's a crime, since it does touch the sovereignty of a state and we are
not allowed to do it. Somebody now might claim, that such crimes are
made public each day by official radio stations in Germany. Yes, but
it's a long way and does cause a lot of trouble, if it should be against
the policy, e.g. Germany makes lots of money by selling weapons and
Germany needs the jobs. IOW it does matter what facts you point out on
air.
Good luck!
Ralf
PS: To make it absolutely clear!
There never was an issue regarding the truth!
The issue was, that the truth did offend the sovereignty of a state!
At least in Germany you're not allowed to point out undisputed truth, if
it does offend the sovereignty of a state, assumed it's a state that is
important for Germany. You're free even to spread unproven rumours about
ever nation that is unimportant for Germany.
1:41 p.m.
On Sun, 2014-06-22 at 15:10 +0200, Nils wrote:
On 22.06.2014 12:36, Ralf Mardorf wrote:
I seriously don't see a technical issue, but only a legal issue
regarding to live streaming. YMMV!
I'm not talking about theory, but about practice. Perhaps your mail is
"...bla bla bla bla" and not mine, we never know, so ... or do we (at
least I) already know? ...
.. where I'm mistaken for the mails I wrote?
TIA for your clarification ;)!!!
Ralf
PS: Let us know about your radio experiences, especially if you should
be from Germany. What "Landesrundfunkanstalt" does chsk your radio
transmissions? I'm fro NRW.
Regards,
Ralf
For example ...bla bla bla bla
Oh, shut up Ralf!
1:45 p.m.
New subject: Sorry, but I type faster than my Linux userspace keyboard thingy is able to follow, so pleas read this correction: Streaming radio and calls from listeners
On Sun, 2014-06-22 at 13:41 +0200, Ralf Mardorf wrote:
On Sun, 2014-06-22 at 15:10 +0200, Nils wrote:
check
On 22.06.2014 12:36, Ralf Mardorf wrote:
I seriously don't see a technical issue, but only a legal issue
regarding to live streaming. YMMV!
I'm not talking about theory, but about practice. Perhaps your mail is
"...bla bla bla bla" and not mine, we never know, so ... or do we (at
least I) already know? ...
.. where I'm mistaken for the mails I wrote?
TIA for your clarification ;)!!!
Ralf
PS: Let us know about your radio experiences, especially if you should
be from Germany. What "Landesrundfunkanstalt" does chsk your radio
For example ...bla bla bla bla
Oh, shut up Ralf! transmissions? I'm fro NRW.
from
Regards,
Ralf
1:23 p.m.
On Sun, Jun 22, 2014 at 02:01:19PM +0400, Louigi Verona wrote:
For more than a year I am producing a skeptic-oriented
podcast. So far it's
been an offline venture. We have a nice audio mixer from Yamaha that we are
recording as one track into Qtractor.
However, I am thinking towards live streaming and accepting calls from
listeners. Is this realistic with Linux? If yes - can anyone suggest how?
If you use Skype then the simplest solution is to run it on a separate
PC using the built-in soundcard (this usually works). You then have to
connect that PC's headphone output to your main soundcard input (this may
require a DI-box to get a clean signal) and the main soundard line out to
the mic input of the PC (which will require a passive attenuator and maybe
also transforer isolation).
It is in theory possible to run Skype on the main PC and connect it to
jack using snd_aloop, zita-a2j and zita-j2a. It's not a stable setup
(Skype being very fussy about sound cards), so I wouldn't recommend
doing that.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
1:46 p.m.
On 06/22/2014 04:23 AM, Fons Adriaensen wrote:
It is in theory possible to run Skype on the main PC
and connect it to
jack using snd_aloop, zita-a2j and zita-j2a. It's not a stable setup
(Skype being very fussy about sound cards), so I wouldn't recommend
doing that.
I've used Skype in a loopback setup, but over the long term it wasn't
that stable. I've been doing live radio on a linux setup since March,
and we *are* using a loopback for an instance of Linphone, and that's
been working like a champ.
-Sam
2:03 p.m.
2014-06-22 13:45 GMT+02:00 Sam Mulvey <sam(a)vis.nu>nu>:
On 06/22/2014 04:23 AM, Fons Adriaensen wrote:
Given that Skype is available for many mobile platforms, and there are
SIP clients as well, there's another possibility that should be
simpler than an extra PC/loopback solution. You could install
Skype/SIP client on your mobile or tablet and connect device's
headphone output to the mixer.
On the other hand, there are programs like Rivendel and distros for
radio stations specific purposes that could be interesting to take
into account.
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
It is in theory possible to run Skype on the main
PC and connect it to
jack using snd_aloop, zita-a2j and zita-j2a. It's not a stable setup
(Skype being very fussy about sound cards), so I wouldn't recommend
doing that.
I've used Skype in a loopback setup, but over the long term it wasn't
that stable. I've been doing live radio on a linux setup since March,
and we *are* using a loopback for an instance of Linphone, and that's
been working like a champ.
-Sam
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
2:20 p.m.
On Sun, 2014-06-22 at 14:03 +0200, Carlos sanchiavedraz wrote:
2014-06-22 13:45 GMT+02:00 Sam Mulvey
<sam(a)vis.nu>nu>:
My apologize, you're not talking about real radio and everything that is
important, just abut some hobby channels and technical issues that
aren't real issues for people who care about real radio issue. Wow, ho
low can you go :D.
On 06/22/2014 04:23 AM, Fons Adriaensen wrote:
Given that Skype is available for many mobile platforms, and there are
SIP clients as well, there's another possibility that should be
simpler than an extra PC/loopback solution. You could install
Skype/SIP client on your mobile or tablet and connect device's
headphone output to the mixer.
On the other hand, there are programs like Rivendel and distros for
radio stations specific purposes that could be interesting to take
into account. It is in theory possible to run Skype on the main
PC and connect it to
jack using snd_aloop, zita-a2j and zita-j2a. It's not a stable setup
(Skype being very fussy about sound cards), so I wouldn't recommend
doing that.
I've used Skype in a loopback setup, but over the long term it wasn't
that stable. I've been doing live radio on a linux setup since March,
and we *are* using a loopback for an instance of Linphone, and that's
been working like a champ.
-Sam
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
10:21 p.m.
On 06/22/2014 05:03 AM, Carlos sanchiavedraz wrote:
Given that Skype is available for many mobile
platforms, and there are
SIP clients as well, there's another possibility that should be
simpler than an extra PC/loopback solution. You could install
Skype/SIP client on your mobile or tablet and connect device's
headphone output to the mixer.
On the other hand, there are programs like Rivendel and distros for
radio stations specific purposes that could be interesting to take
into account.
If I'm doing prerecorded interviews with Skype, I generally use a smart
phone. It's a stop gap solution, especially since the Skype caller
isn't getting audio off the board, just audio from the smartphone. If
your mixer has multiple sends, then you could go that route, but the
mixers that most podcasters are going to have won't.
For live radio, UI concerns are important[1], and having to take calls
on a smartphone *and* manage the rest of the show turns it into a bit of
a mess. It also makes call screening harder to do, which is something I
really have to do. That might be well beyond what the OP was asking
for though.
-Sam
[1]: To the point where I'm designing a hardware interface that acts
like the older boards I'm used to, but is all digital underneath.
Right now, I'm using touchscreens, and having to look at what I'm doing
can actually be a problem sometimes. With pots and switches, I can
feel around.
10:59 p.m.
Hey everyone!
Thanks for all your advice!
I do have a second laptop I can use and I was thinking of this scheme:
channel this second laptop into the mixer or, indeed, channel the phone
into the mixer and do it this way. Thanks to the mixer, I will be able to
mute the call if someone says nasty things.
I installed Internet DJ Console, will look into it.
I wonder if streaming it live will work. A complicated setup, but
manageable. I was also thinking of streaming it to YouTube, live.
On Mon, Jun 23, 2014 at 12:21 AM, Sam Mulvey <sam(a)vis.nu> wrote:
On 06/22/2014 05:03 AM, Carlos sanchiavedraz wrote:
--
Louigi Verona
http://www.louigiverona.ru/
Given that Skype is available for many mobile
platforms, and there are
SIP clients as well, there's another possibility that should be
simpler than an extra PC/loopback solution. You could install
Skype/SIP client on your mobile or tablet and connect device's
headphone output to the mixer.
On the other hand, there are programs like Rivendel and distros for
radio stations specific purposes that could be interesting to take
into account.
If I'm doing prerecorded interviews with Skype, I generally use a smart
phone. It's a stop gap solution, especially since the Skype caller
isn't getting audio off the board, just audio from the smartphone. If
your mixer has multiple sends, then you could go that route, but the
mixers that most podcasters are going to have won't.
For live radio, UI concerns are important[1], and having to take calls
on a smartphone *and* manage the rest of the show turns it into a bit of
a mess. It also makes call screening harder to do, which is something I
really have to do. That might be well beyond what the OP was asking
for though.
-Sam
[1]: To the point where I'm designing a hardware interface that acts
like the older boards I'm used to, but is all digital underneath.
Right now, I'm using touchscreens, and having to look at what I'm doing
can actually be a problem sometimes. With pots and switches, I can
feel around.
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
11:32 p.m.
On Mon, 2014-06-23 at 00:59 +0400, Louigi Verona wrote:
Thanks to the mixer, I will be able to mute the call
if someone says
nasty things.
As Len already pointed out, you need a delay. Btw. if you're talking to
the people + taking care about issues, 7 seconds likely are not enough
delay. A radio station has got somebody who is talking to the people and
another person listening with the finger above the mute bottom and
another finger to start an advertising or music, to avoid a gap.
23 Jun
23 Jun
1:28 p.m.
2014-06-22 22:21 GMT+02:00 Sam Mulvey <sam(a)vis.nu>nu>:
-Sam
[1]: To the point where I'm designing a hardware interface that acts
like the older boards I'm used to, but is all digital underneath.
Right now, I'm using touchscreens, and having to look at what I'm doing
can actually be a problem sometimes. With pots and switches, I can
feel around.
I would be interested in knowing more about that, if it's not a
supersecret project. A common goal on my projects is to "feel" instead
BTW, as I stated, my solution was to be some simple one but it's
obvious that it's not aimed for a pro purppose. For that I would try
something related with Jackd, I think you can get Skype "channel"
through Jack in some way. Although SIP client it's still a viable
solution even for a pro situation.
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
1:30 p.m.
2014-06-23 13:28 GMT+02:00 Carlos sanchiavedraz <csanchezgs(a)gmail.com>om>:
2014-06-22 22:21 GMT+02:00 Sam Mulvey
<sam(a)vis.nu>nu>:
instead of "seeing" (screens, plugin UIs...).
(Sorry, pushed send button accidentally)
-Sam
[1]: To the point where I'm designing a hardware interface that acts
like the older boards I'm used to, but is all digital underneath.
Right now, I'm using touchscreens, and having to look at what I'm doing
can actually be a problem sometimes. With pots and switches, I can
feel around.
I would be interested in knowing more about that, if it's not a
supersecret project. A common goal on my projects is to "feel" instead
BTW, as I stated, my solution was to be some simple
one but it's
obvious that it's not aimed for a pro purppose. For that I would try
something related with Jackd, I think you can get Skype "channel"
through Jack in some way. Although SIP client it's still a viable
solution even for a pro situation.
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
6:14 p.m.
"Although SIP client it's still a viable
solution even for a pro situation."
Mmmm. Not really. I don't see people creating an account in some SIP client
just to call a show. This would drastically decrease the amount of callers
to almost zero.
--
Louigi Verona
http://www.louigiverona.ru/
8:19 p.m.
2014-06-23 18:14 GMT+02:00 Louigi Verona <louigi.verona(a)gmail.com>om>:
"Although SIP client it's still a viable
solution even for a pro situation."
Mmmm. Not really. I don't see people creating an account in some SIP client
just to call a show. This would drastically decrease the amount of callers
to almost zero.
--
Louigi Verona
http://www.louigiverona.ru/
Hi Louigi.
You're right, but I know at least some shows that use Skype, and you
have to have an account then.
Anyway, I would use SIP depending on the kind of PRO we're talking. I
would not use for critical/sensible/important situations like TV or
Radio; I'm referring more in amateur almost-pro situations.
Anyway It was just to add some possibility to the conversation without
knowing the exact context.
P.S: One of my in progress projects maybe could one day be used for
this kind purpose, and it would not use SIP nor anything alike, but
rather browser to browser technology.
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
24 Jun
24 Jun
10:37 a.m.
On 06/23/2014 08:18 PM, Carlos sanchiavedraz wrote:
P.S: One of my in progress projects maybe could one
day be used for
this kind purpose, and it would not use SIP nor anything alike, but
rather browser to browser technology.
That already exists, it's called WebRTC: http://en.wikipedia.org/wiki/WebRTC
Jeremy
4:46 p.m.
2014-06-24 10:37 GMT+02:00 Jeremy Jongepier <jeremy(a)autostatic.com>om>:
On 06/23/2014 08:18 PM, Carlos sanchiavedraz wrote:
Yes, you got it (I didn't mean I was inventing from scratch :) ), I
use that technology along with others that HTML5 and WebAPIs provides.
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
P.S: One of my in progress projects maybe could
one day be used for
this kind purpose, and it would not use SIP nor anything alike, but
rather browser to browser technology.
That already exists, it's called WebRTC: http://en.wikipedia.org/wiki/WebRTC
Jeremy
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
4:50 p.m.
2014-06-24 16:45 GMT+02:00 Carlos sanchiavedraz <csanchezgs(a)gmail.com>om>:
2014-06-24 10:37 GMT+02:00 Jeremy Jongepier
<jeremy(a)autostatic.com>om>:
BTW, to the OP, maybe you can get the output of a web browser from
Jack using this alternative if you ever have no other choice:
https://talky.io/
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
On 06/23/2014 08:18 PM, Carlos sanchiavedraz
wrote:
Yes, you got it (I didn't mean I was inventing from scratch :) ), I
use that technology along with others that HTML5 and WebAPIs provides.
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es P.S: One of my in progress projects maybe could
one day be used for
this kind purpose, and it would not use SIP nor anything alike, but
rather browser to browser technology.
That already exists, it's called WebRTC: http://en.wikipedia.org/wiki/WebRTC
Jeremy
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
23 Jun
23 Jun
8:32 p.m.
there are several "Internet Telephony Service Providers" that will sell
you a "real" telephone number to use with a SIP address
your listeners call a normal phone number and it rings your SIP phone
it's not a free solution but you are just paying for the number, you
need to buy a number anyway?
On 06/23/2014 10:14 AM, Louigi Verona wrote:
"Although SIP client it's still a viable
solution even for a pro situation."
Mmmm. Not really. I don't see people creating an account in some SIP
client just to call a show. This would drastically decrease the amount
of callers to almost zero.
--
Louigi Verona
http://www.louigiverona.ru/
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
11:05 p.m.
Mon, 23 Jun 2014 12:32:07 -0600,
Studio Channing <studiochanning(a)yahoo.com> wrote :
there are several "Internet Telephony Service
Providers" that will
sell you a "real" telephone number to use with a SIP address
your listeners call a normal phone number and it rings your SIP phone
it's not a free solution but you are just paying for the number, you
need to buy a number anyway?
With my SIP VOIP provider, it's $1 per month for a local telephone
number (with $10 setup fee), and it can also provide international
numbers at a reasonable monthly fee. It uses the G711 codec, so the
final quality is good enough for a radio show. Since it obviously work
for people with SIP phones, maybe better codecs can be used. So I
also believe that VOIP is a viable option for a pro situation, and I
would prefer to use the Linphone software because of its command line
client (which useful for automation and integration), and there's
probably other free options.
-
Marc
On 06/23/2014 10:14 AM, Louigi Verona wrote:
"Although SIP client it's still a
viable
solution even for a pro situation."
Mmmm. Not really. I don't see people creating an account in some
SIP client just to call a show. This would drastically decrease the
amount of callers to almost zero.
--
Louigi Verona
http://www.louigiverona.ru/
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user(a)lists.linuxaudio.org
http://lists.linuxaudio.org/listinfo/linux-audio-user
24 Jun
24 Jun
12:07 a.m.
On Mon, 23 Jun 2014, Marc Lavallée wrote:
for people with SIP phones, maybe better codecs can be
used. So I
also believe that VOIP is a viable option for a pro situation, and I
would prefer to use the Linphone software because of its command line
client (which useful for automation and integration), and there's
probably other free options.
In a profesional situation, asterisk might be better (perhaps on it's own
machine) as it would provide for a switch board as well. On the same
number you could have more than one person call in as the number is only
used in sip to initiate the call. Plus, it does have a jack interface. I
have not played with asterisk myself, so I don't know how easy it would be
to set up. The main thing with any of these solutions... SIP or a local
phone number limits you to local callers or people with sip clients.
Skype, like it or not, has infected more computers than most virus have...
so using skype gives you the world. For an Inet radio station... this is
best.
Another consideration with Inet radio stations is that often the
stream server does not belong to the studio operator and the studio
operator does not have an IP that is visible. It is possible to do ip to
ip voip/sip calls so long as one end is visible no server is needed, but
for a lot of people that is not the case... and even if it was, not that
many people would know how to use it. So it would be fine for remote news
gathering with trained people, but not casual call in.
--
Len Ovens
www.ovenwerks.net
10:35 a.m.
On 06/23/2014 06:14 PM, Louigi Verona wrote:
Mmmm. Not really. I don't see people creating an
account in some SIP client
just to call a show. This would drastically decrease the amount of callers
to almost zero.
Hi Louigi,
Couple the SIP account to a DID (http://en.wikipedia.org
/wiki/Direct_inward_dial) and one can call from anywhere. Or does
calling in have to be free?
Jeremy
23 Jun
23 Jun
10 p.m.
On Mon, 23 Jun 2014, Carlos sanchiavedraz wrote:
2014-06-22 22:21 GMT+02:00 Sam Mulvey
<sam(a)vis.nu>nu>:
One of the cheapest, easiest to hack pieces of hardware out there is a
keyboard. Either the old serial ones (mini din) or the USB type already
have 100 plus switches worked out. It is recognized by linux and X and so
by any app, most of which have key mappings already. So long as you are
using less than the full number of switches, it is pretty easy to select
switch points where there can be multiple key presses at once. A pot is a
bit harder (and there is midi pots out there) but could be done with two
switches where moving the pot one way selects one switch and moving it the
other way selects the other.
Keyboards (if you just can't find them free... a coffee spill is not a
problem) can be had for $3 each at thrift stores or even the dollar store
brand new.
--
Len Ovens
www.ovenwerks.net
[1]: To the point where I'm designing a hardware interface that acts
like the older boards I'm used to, but is all digital underneath.
Right now, I'm using touchscreens, and having to look at what I'm doing
can actually be a problem sometimes. With pots and switches, I can
feel around.
I would be interested in knowing more about that, if it's not a
supersecret project. A common goal on my projects is to "feel" instead
24 Jun
24 Jun
10:15 a.m.
2014-06-23 21:58 GMT+02:00 Len Ovens <len(a)ovenwerks.net>et>:
On Mon, 23 Jun 2014, Carlos sanchiavedraz wrote:
Good idea, very convenient and plastic, and quite cheap so it is less
risky to start something for a long run. Keep us informed, please.
Thanks
--
C. sanchiavedraZ:
* NEW / NUEVO: www.sanchiavedraZ.com
* Musix GNU+Linux: www.musix.es
2014-06-22 22:21 GMT+02:00 Sam Mulvey
<sam(a)vis.nu>nu>:
One of the cheapest, easiest to hack pieces of hardware out there is a
keyboard. Either the old serial ones (mini din) or the USB type already have
100 plus switches worked out. It is recognized by linux and X and so by any
app, most of which have key mappings already. So long as you are using less
than the full number of switches, it is pretty easy to select switch points
where there can be multiple key presses at once. A pot is a bit harder (and
there is midi pots out there) but could be done with two switches where
moving the pot one way selects one switch and moving it the other way
selects the other.
Keyboards (if you just can't find them free... a coffee spill is not a
problem) can be had for $3 each at thrift stores or even the dollar store
brand new.
--
Len Ovens
www.ovenwerks.net
[1]: To the point where I'm designing a hardware interface that acts
like the older boards I'm used to, but is all digital underneath.
Right now, I'm using touchscreens, and having to look at what I'm doing
can actually be a problem sometimes. With pots and switches, I can
feel around.
I would be interested in knowing more about that, if it's not a
supersecret project. A common goal on my projects is to "feel" instead
22 Jun
22 Jun
6:15 p.m.
On Sun, 22 Jun 2014, Louigi Verona wrote:
For more than a year I am producing a skeptic-oriented
podcast. So far it's
been an offline venture. We have a nice audio mixer from Yamaha that we are
recording as one track into Qtractor.
So, it sounds like you have been doing all your mixing outside the
computer then. (just checking)
However, I am thinking towards live streaming and accepting calls from
listeners. Is this realistic with Linux? If yes - can anyone suggest how?
Try reading about http://idjc.sourceforge.net/ in particular
http://idjc.sourceforge.net/tutorials_voip.html Though I have also seen
setups with pulse->jack... I have not tried pulse->jack with my new
computer but it required too much CPU on the old single core P4.
(by the way the idjc here is _not_ Idaho Department of Juvenile
Corrections)
Remote content providing that I know has worked:
-teamspeak (oss sound on a second computer <for enough cpu> mixed in an
external mixer)
-mumble
-others as mentioned
Skype likes to play with levels of the sound card... owned by MS so it
likes to be in control... However, lots of people have a skype account,
but only the free part so they can not call a number or a named voip
account. They also can not accept a call from non-skype voip unless you
have a paying account.
With regard to content filtering of live calls, not just from a legal
perspective, but also from what you want your listeners to hear. The
standard method used here when I was in the business years ago was to
delay the whole studio audio about 7 seconds and provide a cut button that
shut off the audio after the delay. It gave some interesting echo effects
when the call in had their radio turned up too high :) The idjc DSP
button could be used for this if you were using that SW... most effects
have a bypass button too.
One thing I would like to try for remote content is to use netjack... Your
master server has to be inet visible though. Which brings a question to
mind... can a jackd server with a net backend also be a netjack master? I
guess the real question is if a netjack master can be tied to a particular
network interface. The idea being that the studio machine with the audio
card is master on the local net. The webserver is a slave on the local
net, but a master to the internet. The other way would be to put a
soundcard in the webserver for timing only and make it master of all. Then
use zita-aj for the real audio card. The problem with the second method is
that the local net would have compressed audio and all machines using
netjack would have the added overhead of the codec.
--
Len Ovens
www.ovenwerks.net
11:18 p.m.
On Sun, 2014-06-22 at 09:13 -0700, Len Ovens wrote:
With regard to content filtering of live calls, not
just from a legal
perspective, but also from what you want your listeners to hear. The
standard method used here when I was in the business years ago was to
delay the whole studio audio about 7 seconds and provide a cut button
that shut off the audio after the delay.
Sure, issues are not only that dramatically as I said. It simply could
be swearing you don't want to send. Perhaps not a legal issue, but at
least something that cause advertisers not to pay you anymore. Ok, the
OP might not have advertisers, but seemingly listeners. It's all the
same, advertisers drop a radio station, when the radio station doesn't
have enough listeners.
I know, everything I experienced in reality is just bla bla to the
people subscribed to this list. Do yourself a favour, if you don't like
me, then listen to Len.
11:48 p.m.
On Sun, Jun 22, 2014 at 09:13:27AM -0700, Len Ovens wrote:
With regard to content filtering of live calls, not
just from a
legal perspective, but also from what you want your listeners to
hear. The standard method used here when I was in the business years
ago was to delay the whole studio audio about 7 seconds and provide
a cut button that shut off the audio after the delay.
This seven seconds 'profanity delay' seems to be a US thing,
and probably an FCC requirement. I've never seen such things
used on this side of the Atlantic.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
11:56 p.m.
On Sun, 2014-06-22 at 21:48 +0000, Fons Adriaensen wrote:
On Sun, Jun 22, 2014 at 09:13:27AM -0700, Len Ovens
wrote:
Indeed we don't use a delay here, but there always is the person with
the finger above the mute button and with the other finger on the play
button.
With regard to content filtering of live calls,
not just from a
legal perspective, but also from what you want your listeners to
hear. The standard method used here when I was in the business years
ago was to delay the whole studio audio about 7 seconds and provide
a cut button that shut off the audio after the delay.
This seven seconds 'profanity delay' seems to be a US thing,
and probably an FCC requirement. I've never seen such things
used on this side of the Atlantic.
23 Jun
23 Jun
12:15 a.m.
On Sun, 22 Jun 2014, Fons Adriaensen wrote:
This seven seconds 'profanity delay' seems to
be a US thing,
and probably an FCC requirement. I've never seen such things
used on this side of the Atlantic.
And Canadian too, but I hear lots of words from announcers that would
have been out the door the same day words not that long ago. More
likely to have trouble with "hate" words these days.... flavour of the
week stuff. There is a big difference between internet radio and on air.
On air requires a licence after which lots of money gets spent putting up
transmitter and studio, then lots of money is spent paying employees and
talent. The loss of a licence for a radio station is devastating. Internet
radio? I would have no equipment outlay, no licence to worry about either.
Probably it would start with as little as one person maybe not even paid.
The biggest thing with music is making sure royalties are dealt with
either by picking free to play or making sure payment was made. At worst
someone may come and remove my computer... they may sue too, but you have
to have something to sue for :) Most likely just stopping would quell
complaints though.
Ya, it depends where you are for sure. It changes all the time too.
Generally when interviewing someone on the phone it is not a problem. Call
in stuff can be more volitile... perhaps north americans are just less
polite :)
--
Len Ovens
www.ovenwerks.net
12:29 a.m.
On Sun, 2014-06-22 at 15:13 -0700, Len Ovens wrote:
perhaps north americans are just less polite :)
:D
No, in Europe we are allowed to speak out thinks that American people
don't want to hear, anyway, there are limits in Europa too. Btw. in
Germany there are no black helicopters, there's no suing, just the
editor gets fired and unlikely, but possible you receive a letter from
the local Landesrundfunkanstalt.
I don't know how long audio recordings have to be archived, but in
Germany each radio station needs to record everything that is send and
then it has to be archived for a while.
1:51 a.m.
Fons Adriaensen <fons(a)linuxaudio.org> writes:
This seven seconds 'profanity delay' seems to
be a US thing, and
probably an FCC requirement. I've never seen such things used on this
side of the Atlantic.
Some UK broadcasters certainly use this kind of delay when dealing with
live callers, with a "dump" button that the presenter can use to drop
the last few seconds. This sometimes gets reported on by Ofcom (the UK
communications regulator) when it goes wrong, e.g. when LBC were feeding
their FM service from the wrong side of the delay:
http://stakeholders.ofcom.org.uk/enforcement/broadcast-bulletins/obb68/
The Communications Act 2003 has a requirement to not include "offensive
and harmful" material (which Ofcom interpret in a fairly liberal way,
taking context into account), and a delay's a pretty good way of doing
so when the presenter can't otherwise control what interviewees might
say.
--
Adam Sampson <ats(a)offog.org> <http://offog.org/>
2:37 a.m.
New subject: Off-topic: Streaming radio and calls from listeners
On Mon, 2014-06-23 at 00:51 +0100, Adam Sampson wrote:
The Communications Act 2003 has a requirement to not
include "offensive
and harmful" material (which Ofcom interpret in a fairly liberal way,
taking context into account), and a delay's a pretty good way of doing
so when the presenter can't otherwise control what interviewees might
say.
What happens if a radio station does offend this commandment?
In Germany you are free to speak out obscenities, OTOH for even correct
political statements that are against the "vision" of Germany and
allies, the editor gets fired, but nobody will sue the radio station,
but there's one exception when black helicopters are nearly used, those
guys definitively will be sued, while AFAIK American NAZIs are free to
transmit agitation by radio, this is a no-go in Germany.
2:51 a.m.
New subject: PS: Off-topic: Streaming radio and calls from listeners
On Mon, 2014-06-23 at 02:37 +0200, Ralf Mardorf wrote:
AFAIK American NAZIs are free to transmit agitation by
radio
I didn't spread FUD, I watched a movie and have got other sources and
have got no reason to not believe it:
IMO a rather good documentary from an African-German woman.
http://www.die-arier.com/en/index.php
3:01 a.m.
New subject: PS: Off-topic: Streaming radio and calls from listeners
On Sun, Jun 22, 2014 at 8:51 PM, Ralf Mardorf
<ralf.mardorf(a)rocketmail.com> wrote:
On Mon, 2014-06-23 at 02:37 +0200, Ralf Mardorf
wrote:
It is true, in the US, the racist views of neo-Nazis, Ku Klux Klan,
neo-Confederates, etc, are protected under Freedom of Speech.
--
Brett W. McCoy -- http://www.brettwmccoy.com
------------------------------------------------------------------------
"In the rhythm of music a secret is hidden; If I were to divulge it,
it would overturn the world."
-- Jelaleddin Rumi
AFAIK American NAZIs are free to transmit
agitation by radio
I didn't spread FUD, I watched a movie and have got other sources and
have got no reason to not believe it: 
24 Jun
24 Jun
5:58 a.m.
On Sun, Jun 22, 2014 at 09:48:01PM +0000, Fons Adriaensen wrote:
On Sun, Jun 22, 2014 at 09:13:27AM -0700, Len Ovens
wrote:
It's definitely an FCC thing, and a US-ism.
Background:
http://en.wikipedia.org/wiki/Federal_Communications_Commission_v._Pacifica_…
Source material, (warning NSFFCC): http://www.youtube.com/watch?v=kyBH5oNQOS0
-ken
With regard to content filtering of live calls,
not just from a
legal perspective, but also from what you want your listeners to
hear. The standard method used here when I was in the business years
ago was to delay the whole studio audio about 7 seconds and provide
a cut button that shut off the audio after the delay.
This seven seconds 'profanity delay' seems to be a US thing,
and probably an FCC requirement. I've never seen such things
used on this side of the Atlantic.
10:44 a.m.
On Mon, Jun 23, 2014 at 08:58:22PM -0700, Ken Restivo wrote:
It's definitely an FCC thing, and a US-ism.
Background:
http://en.wikipedia.org/wiki/Federal_Communications_Commission_v._Pacifica_…
Source material, (warning NSFFCC): http://www.youtube.com/watch?v=kyBH5oNQOS0
See also: http://en.wikipedia.org/wiki/Broadcast_delay#Early_use
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
11:17 a.m.
On Tue, 24 Jun 2014 08:44:03 +0000
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
On Mon, Jun 23, 2014 at 08:58:22PM -0700, Ken Restivo
wrote:
Can't be certain, but I have a feeling the BBC has, or had something like this
for live radio. If so, knowing the BBC they probably developed their own kit.
After all, at their height, they designed and built their own mixing desks.
--
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
It's definitely an FCC thing, and a US-ism.
Background:
http://en.wikipedia.org/wiki/Federal_Communications_Commission_v._Pacifica_…
Source material, (warning NSFFCC): http://www.youtube.com/watch?v=kyBH5oNQOS0
See also: http://en.wikipedia.org/wiki/Broadcast_delay#Early_use
Ciao,
5:12 p.m.
I remember those! I interned in a radio station in high school.
These delays were implemented with a "cart", an 8-track-style cartridge. The
carts were usually used for commercials and occasionally music. They were cut to a minute
or several minutes of 1/4" tape, specially lubed for repeated use. The delay unit was
a specially wired cart machine.
The tape delay cart was just a cart with a very short loop, like 3 or 7 seconds. The cart
machine had read and write heads and erase heads. The layout was, read, erase, write. So
the delay machine would write the material from the write head, the tape would loop
around, the material would be read off of the read head, then erased. If you turned the
erase head off you'd get Frippertronics-like effects.
The carts would wear out fast, and in the course of a live show you'd have to replace
them often, like every hour or so, usually during commercial.
The boards were wired up with sends so you could send the whole program thru the delay.
I remember the boards, usually an RCA BC-7A. The pots were huge and made of bakelite, and
they had gold contacts in a radial step pattern. They were already ancient by the time I
touched one. If you potted things up slowly you could hear the stepping.
Dunno why I just remembered all that from 30 years ago, but thanks for jogging my memory.
Fons Adriaensen <fons(a)linuxaudio.org> wrote:
On Mon, Jun 23, 2014 at 08:58:22PM -0700, Ken Restivo
wrote:
It's definitely an FCC thing, and a US-ism.
Background:
http://en.wikipedia.org/wiki/Federal_Communications_Commission_v._Pacifica_…
Source material, (warning NSFFCC):
http://www.youtube.com/watch?v=kyBH5oNQOS0
See also: http://en.wikipedia.org/wiki/Broadcast_delay#Early_use
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)
3603
days inactive
3605
days old
linux-audio-user@lists.linuxaudio.org
42 comments
14 participants
participants (14)
-
Adam Sampson -
Brett McCoy -
Carlos sanchiavedraz -
Fons Adriaensen -
Jeremy Jongepier -
Ken Restivo -
Len Ovens -
Louigi Verona -
Marc Lavallée -
Nils -
Ralf Mardorf -
Sam Mulvey -
Studio Channing -
Will Godfrey