16 Mar
2006
16 Mar
'06
11:46 a.m.
I have used Jack with two audio devices, a usb device for input and a built in laptop
device for playback. There were audible dropouts, but that is because the built in device
is poorly made. So using my past experience, it would be possible to use a usb mic as
input and a second usb device for output, creating a self contained portable studio.
-lee
-----Original Message-----
From: Lars Luthman <larsl(a)users.sourceforge.net>
Subj: Re: [linux-audio-user] Blue snoball USB mic
Date: Thu Mar 16, 2006 2:30
Size: 983 bytes
To: A list for linux audio users <linux-audio-user(a)music.columbia.edu>
On Thu, 2006-03-16 at 02:02 -0500, Lee A. Azzarello wrote:
The thread about the Griffin iMic got me thinking
about the Blue Snowball.
Has anyone got this mic:
http://www.bluemic.com/modules.php?op=modload&name=Products&file=in…
working on GNU/Linux on any archetecture? I'm piecing together a wireless
portable internet radio system and the mic preamp is the bottleneck. I can't
find a decent battery powered mic preamp to talk to Jack. This model looks
like a step in that direction.
I haven't tried it, but I've been thinking about getting a USB
microphone too. Remember that JACK can only handle one audio device, so
it's probably not completely trivial to record from an USB microphone
(which is a separate audio device) and for example output to another
soundcard using JACK.
--
Lars Luthman
PGP key: http://www.student.nada.kth.se/~d00-llu/pgp_key.php
Fingerprint: FCA7 C790 19B9 322D EB7A E1B3 4371 4650 04C7 7E2E
--- message truncated ---
16 Mar
16 Mar
12:18 p.m.
New subject: [linux-audio-user] Blue snoball USB mic
Hallo,
lee(a)rockingtiger.com hat gesagt: // lee(a)rockingtiger.com wrote:
I have used Jack with two audio devices, a usb device
for input and
a built in laptop device for playback. There were audible dropouts,
but that is because the built in device is poorly made. So using my
past experience, it would be possible to use a usb mic as input and
a second usb device for output, creating a self contained portable
studio.
Could you elaborate a bit on how you're doing that? asoundrc-magic or
is it just possible by starting jackd in some funky way?
(And before someone complains about how sick that setup would be: I
see some reasonable uses for this, for example if you want to record
something in decent quality with a laptop using a USB-device-input,
but you want to listen to the currently recorded stuff through the
laptop speakers, which are linked to the onboard card.)
Ciao
--
Frank Barknecht _ ______footils.org_ __goto10.org__
12:41 p.m.
New subject: [linux-audio-user] Blue snoball USB mic
On Thu, 2006-03-16 at 17:18 +0100, Frank Barknecht wrote:
Hallo,
lee(a)rockingtiger.com hat gesagt: // lee(a)rockingtiger.com wrote:
jackd -d alsa -P hw:N -C hw:!N
I have used Jack with two audio devices, a usb
device for input and
a built in laptop device for playback. There were audible dropouts,
but that is because the built in device is poorly made. So using my
past experience, it would be possible to use a usb mic as input and
a second usb device for output, creating a self contained portable
studio.
Could you elaborate a bit on how you're doing that? asoundrc-magic or
is it just possible by starting jackd in some funky way? 
12:49 p.m.
New subject: [linux-audio-user] Blue snoball USB mic
On Thu, 2006-03-16 at 11:45 -0500, Paul Davis wrote:
On Thu, 2006-03-16 at 17:18 +0100, Frank Barknecht
wrote:
Ah, I thought I remembered something like that. That would work great
for me, the only thing I have plugged into the inputs on my soundcard is
the sound from my TV card, and I usually don't want to record from that
using JACK. How does it work internally? If one of the devices has a
clock that is slightly slower than the other, will jackd resample the
signal to make it as smooth as possible? Or will there be
discontinuities when jackd has to skip forward or backward in one of the
streams to catch up with the other?
--
Lars Luthman
PGP key: http://www.student.nada.kth.se/~d00-llu/pgp_key.php
Fingerprint: FCA7 C790 19B9 322D EB7A E1B3 4371 4650 04C7 7E2E
Hallo,
lee(a)rockingtiger.com hat gesagt: // lee(a)rockingtiger.com wrote:
jackd -d alsa -P hw:N -C hw:!N I have used Jack with two audio devices, a usb
device for input and
a built in laptop device for playback. There were audible dropouts,
but that is because the built in device is poorly made. So using my
past experience, it would be possible to use a usb mic as input and
a second usb device for output, creating a self contained portable
studio.
Could you elaborate a bit on how you're doing that? asoundrc-magic or
is it just possible by starting jackd in some funky way?
1:22 p.m.
New subject: [linux-audio-user] Blue snoball USB mic
On Thu, 2006-03-16 at 17:49 +0100, Lars Luthman wrote:
On Thu, 2006-03-16 at 11:45 -0500, Paul Davis wrote:
jackd never skips in this way. there will be xruns that will grow worse
and more frequent as the two devices drift out of sync, and therefore
are not "ready" at the same time. whichever is ready first won't be
"serviced" by jackd until the other one is.
--p
jackd -d alsa -P hw:N -C hw:!N
Ah, I thought I remembered something like that. That would work great
for me, the only thing I have plugged into the inputs on my soundcard is
the sound from my TV card, and I usually don't want to record from that
using JACK. How does it work internally? If one of the devices has a
clock that is slightly slower than the other, will jackd resample the
signal to make it as smooth as possible? Or will there be
discontinuities when jackd has to skip forward or backward in one of the
streams to catch up with the other?
20 Mar
20 Mar
7:19 a.m.
New subject: [linux-audio-user] Blue snoball USB mic
On Thu, 2006-03-16 at 12:25 -0500, Paul Davis wrote:
On Thu, 2006-03-16 at 17:49 +0100, Lars Luthman
wrote:
I knew that normal JACK clients work like that, but I wasn't sure what
was going on inside the ALSA driver. I guess this means that I need a
separate client that reads from the ALSA input device and outputs the
data to a JACK output, resampled to match the rate JACK is running at?
Are there any clients that do this? I've read about jack_diplomat, but
running a second jackd just to get the data from the input device seems
like overkill.
--
Lars Luthman
PGP key: http://www.student.nada.kth.se/~d00-llu/pgp_key.php
Fingerprint: FCA7 C790 19B9 322D EB7A E1B3 4371 4650 04C7 7E2E
On Thu, 2006-03-16 at 11:45 -0500, Paul Davis
wrote:
jackd never skips in this way. there will be xruns that will grow worse
and more frequent as the two devices drift out of sync, and therefore
are not "ready" at the same time. whichever is ready first won't be
"serviced" by jackd until the other one is.
jackd -d alsa -P hw:N -C hw:!N
Ah, I thought I remembered something like that. That would work great
for me, the only thing I have plugged into the inputs on my soundcard is
the sound from my TV card, and I usually don't want to record from that
using JACK. How does it work internally? If one of the devices has a
clock that is slightly slower than the other, will jackd resample the
signal to make it as smooth as possible? Or will there be
discontinuities when jackd has to skip forward or backward in one of the
streams to catch up with the other?
16 Mar
16 Mar
12:54 p.m.
New subject: [linux-audio-user] Blue snoball USB mic
Hallo,
Paul Davis hat gesagt: // Paul Davis wrote:
On Thu, 2006-03-16 at 17:18 +0100, Frank Barknecht
wrote:
Duh, how unfunky. ;)
Thanks
Ciao
--
Frank Barknecht _ ______footils.org_ __goto10.org__
Could you elaborate a bit on how you're doing
that? asoundrc-magic or
is it just possible by starting jackd in some funky way?
jackd -d alsa -P hw:N -C hw:!N
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days inactive
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linux-audio-user@lists.linuxaudio.org
7 comments
5 participants
participants (5)
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Frank Barknecht -
Lars Luthman -
lee＠rockingtiger.com -
Paul Davis -
Thomas Vecchione