Hello,
First of all, I apologize for the somewhat off-topic post, but I wasn't sure who else to go to (Muse is no longer in business).
I recently purchased a Receptor 1.0 Rev C (S/N C07090100005) from a friend. I work as a Linux systems administrator in my day job, so I have knowledge of the Linux operating system. My goal was to purchase the Receptor and see if I could repurpose it somehow. I have a few questions:
The power supply does not support SATA hard drives... I can live with the one that's there, but I would like to upgrade it. I've seen some talk on the KVR site about this, but wanted to find out if amd pf you have a power supply model that you recommend as a drop-in replacement.
Getting rid of the OS that's on there and installing, say, Debian, seems completely doable with the exception of the knobs and buttons. I wish to have those buttons and knobs mapped to primary functions in whatever app I choose to run. I've looked around the file system to see what might be handling front-panel events (kernel driver plus something?), but nothing jumped out. Any clues where I should look? There's also the matter of the desplay, but I feel like there's a lot of materal online on making these work, so I'll hold off asking about it here.
My overall goal is to make a generic box that can do recording and keyboard rack duties using 100% Linux software, both for the learning experience and the musical benefits. Any help you're willing to give would be very much appreciated!
Thank you,
Josh
Hi,
I'm looking for a amp / speaker combination for keyboard. It should be
especially give good reproduction of piano sounds (using Pianoteq) and having a
solid bass floor. I have to fight 4 (non amplified) wind instruments (B.CL,
2xTb and Alto Sax) and a drum kit in our rehearsal room.
For I have to substitute partly a bass player it must be able to reproduce the
sound of the lower keys sufficiently. Price below 1000 € and and not too much
weight would be benefits.
I'm grateful for any hint.
Gerhard
It seems easier to write a stupid JACK patchbay in python than to make
other patchbays do what I want.
I just want every JACK client to alternate between speakers and headphones
when I press a keyboard shortcut.
Are there very many/any people using firewire devices?
If so is it with the alsa modules or the faddo modules?
My final question being how good are the alsa modules? do they cover most
of the FW devices out there? Or is removing alsa FW mod and using faddo
the way to go?
--
Len Ovens
www.ovenwerks.net
On 4/1/19 3:41 AM, Ralf Mardorf wrote:
> On Sun, 31 Mar 2019 23:58:13 -0700 (PDT), Len Ovens wrote:
>> On Mon, 1 Apr 2019, Tim wrote:
>>> Another user pointed out that ALSA may not be the answer for all
>>> cards and may even get some things incorrect whereas a dedicated
>>> mixer might not. And said "usually class compliant USB devices don't
>>> have alsamixer volume controls".
>>
>> They can, but in general, if the USB device has physical controls,
>> then it has no need for alsa controls (there are no computer
>> controlable controls in any OS). Many USB audio chipsets (or maybe I
>> should say cheap chipsets) just do the audio with no controls. I think
>> there is a complient way of doing controls, but that may not deal with
>> more complex routing. It seems the thing these days is to make the
>> audio interface double as a digital mixer to help it actually sell for
>> the higher price asked. I don't think USB2.0 covers such a use.
>
> Hi,
>
> sorry for writing off-list, but the D* who runs this list banned me
> for absolutely no reason, see [1].
>
> I already replied off-list to Tim [2], since he quoted what I've
> written at the jack mailing list.
No problem.
Your points brought me "back down to earth".
For some reason I thought ALSA could handle every card.
And that therefore every distro should have some great
ALSA mixer like Qas. All problems solved.
But it's more complicated than that, as you say.
Again, I guess I just feel sad if some user goes away
disappointed. I (and all of us) always try to help people,
even newbies, have a good experience with Linux audio.
With MusE we try to make it friendly but with power behind it.
I want everyone to have a good experience and have fun.
>
> Actually the 18i20 provides potentiometers for the 8 analog input
> channels and for 2 of them additionally "pad" switches, but it only
> provides output potentiometers for the two headphone outputs and for 2
> channels aimed as monitor output, which is quite useless without access
> to the hardware IO routing.
>
> The ADAT device I'm using provides input level potentiometers, but no
> ouput level control.
>
> The RME HDSPE has got no input level control at all and some
> microphones, e.g. the Brauner VM1 have their own output "pad" switch.
>
> Nobody who has got a halfway professional workflow needs a level control
> at all stages.
>
> I'm anyway using the Behringer replica of the mixing console Len does
> use. Btw. a friend owns an old revision of the Mackie. I didn't compare
> the audio quality directly, but at least I can say two thing. The
> Mackie is way noisier than the Behringer, but the Mackie provides more
> space between the potentiometers, so it's more pleasant to handle and
> easier to clean. I do understand that people wish to get rid of a
> mixing console. A friend likes to lend me a huge mixer, better than the
> small Mackie, Behringer and Co. mixing consoles, but I don't have the
> room for a huge mixer.
Yes, I was saying that I have a mixer sitting in a box,
but my relatively simpler needs are such that my ten-channel
delta1010 card pretty much does all of that for me.
I should put an analog compressor/limiter ahead of the card,
but I'm so used to playing/recording without it.
T.
>
> Regards,
> Ralf
>
> [1]
> https://lists.linuxaudio.org/archives/linux-audio-user/2019-February/111637…
> https://lists.linuxaudio.org/archives/linux-audio-user/2019-February/111642…
> https://lists.linuxaudio.org/archives/linux-audio-user/2019-February/111662…
> https://lists.linuxaudio.org/archives/linux-audio-user/2019-February/111663…
> The complete thread is available by
> https://lists.linuxaudio.org/archives/linux-audio-user/2019-February/
>
> [2]
> Begin forwarded message:
>
> Date: Mon, 1 Apr 2019 07:06:26 +0200
> From: Ralf Mardorf <ralf.mardorf(a)alice-dsl.net>
> To: Tim <termtech(a)rogers.com>
> Subject: Re: [LAU] Full-featured mixers
>
>
> On Mon, 1 Apr 2019 00:07:41 -0400, Tim wrote:
>> And said "usually class compliant USB devices don't have alsamixer
>> volume controls".
>
> Hi,
>
> for some audio devices even the revision could make a difference.
>
> The claims regarding the Scarlett 18i20, see
> https://lists.linuxaudio.org/archives/linux-audio-user/2019-March/111865.ht…
> are incorrect for the 2nd generation. IOW the 18i20 that is actually
> sold and works up to 192kHz isn't supported as described. It might work
> for second-hand 18i20 of the 1st generation that supports up to 96kHz.
>
> Regards,
> Ralf
>
Hi list. Just continuing a thread I probably should have
started here instead of on Jack lists.
I was trying to say I was disappointed that apparently
a user had trouble with some hardware volumes.
So I lamented the lack of hardware controls in general
mixers these days. They used to show all ALSA controls.
I found a tip for KMix to show ALSA *not* Pulse controls:
"export KMIX_PULSEAUDIO_DISABLE=1 && kmix"
But unfortunately it's either Pulse or ALSA, not both at the
same time in KMix. To me that's a bad thing.
So I want to give a big shout out for QasMixer
https://sourceforge.net/projects/qastools/
and ask what general mixers you might use and what
you think of QasMixer and QasHctl. They're pretty cool.
They show all my ice1712 controls.
I think a desktop mixer icon should eventually bring you
to something like that instead of only Pulse.
What do you think?
Tim.
hi all,
just back home safe and waaay smoother than when getting there first :)
now,
for all the traditional and lousy unedited photos, straight out and
dumped from the camera sd-card:
https://www.rncbc.org/lac/lac2019
(note that the weather was lousy, cloudy and rainy...)
cheers and thanks for all the fish(*)
--
rncbc aka. Rui Nuno Capela
(*) ps. had none actually, there were only dead meat (and dead
vegetables too) but had it great on oysters on the last day, if seafood
counts as non-meat:)~
I have a desktop computer and Raspberry Pi 3 B+.
I want Raspberry Pi to control my speakers and share my speakers with my
desktop over a direct ethernet connection.
USB microphone is going to be connected to Raspberry Pi and be shared with
the desktop computer over the ethernet connection, too.
Can netjack1/2 over a direct ethernet connection substitute for local ALSA
audio?
Will video and audio synchronize if netjack was used over a direct ethernet
connection?
My Raspberry Pi can turn audio gears on and off via relays.
When my desktop starts using its speakers, I want it to tell Raspberry Pi
to turn on the speakers via a relay.
When nothing has used the speakers for a minute, I want it to tell
Raspberry Pi to turn off the speakers.
I can do the same for a USB microphone. A USB microphone can be turned on
and off by uhubctl.
Does ALSA have a callback API that I hook into? Does jack have it?
