[PlanetCCRMA] Basic Newbie stuff

Lloyd Hanson planetccrma at webmoron.net
Mon Sep 6 12:05:28 PDT 2010

Sorry for the late reply, but I hate posting spurious information, so I 
have wanted to test everything twice to verify what I've been doing.

My problems with jackd were largely self inflicted.  I was starting it 
from the command line and mistakenly thought it was refusing to start.  
So I was then bringing up Qjackctl and of course it wouldn't start 
either as there was already an instance of jackd running.

The epiphany came when I d/l Hydrogen for testing as per Fernando's 
suggestion.  Thank you Fernando!   I opened it and suddenly had sound.  
This surprised me because I figured I shouldn't have anything if jackd 
wasn't running (I hadn't started it).  But I found a copy running, which 
turned out to be a temporary copy that Hydrogen had started.

Linux has been on several of my computers for a very long time, but I've 
never explored the audio subsystems in any depth. Mainly, I used them 
for file and web serving and little else.  In that sense I am so far 
behind the curve it's ridiculous.

But I now have audio through jack, which is my main goal.  Now I just 
have to figure out how to get audio through the card for the routine 
stuff, like the web browser, flash player, etc.

Niels, I will try mudita 24 in the not too distant future, but I need to 
walk before I can run.  I have yet to install the real-time kernel and 
fully avail myself of the gifts that Fernando and company have made 
available to the community.

Thank you all for your responses.  I'm sure that as I move up the 
learning curve, I'll be back to pick the excellent minds that frequent 
the planet!

Lloyd Hanson

On 09/06/2010 02:01 PM, Fernando Lopez-Lezcano wrote:
> On Mon, 2010-09-06 at 09:58 -0700, Niels Mayer wrote:
>> (1) Instead of installing alsa-tools (
>> http://koji.fedoraproject.org/koji/buildinfo?buildID=171016 ). You can
>> try out mudita24 binaries that should still work with F13 (f12
>> compiled) or compile your own:
>> http://mudita24.googlecode.com
> He is a (see subject) "basic newbie" so compiling and trying out new
> programs should be a second step to getting sound working, the
> envy24control utility should be enough to set things up initially...
> We are waiting for feedback to see how things are going... (maybe sound
> is already working now?)
> -- Fernando
>> (2) In mudita24 make sure that "multi track rate locking" and
>> "multitrack rate reset" are not set.  Also switch to the desired clock
>> rate on the card, i'd suggest 44.1 for the tests below. Then reboot or
>> totally shutdown and reload alsa (i suggest reboot as the card might
>> get into a weird lockup w/ the wrong settings). If both not set the
>> first time you bring up mudita24 after reboot, then you don't need a
>> reboot. at least my experience is that these settings are "sticky" and
>> once stuck need a reboot to clear up.
>> (3) oh... before rebooting :-) make sure you're using and logging into
>> a totally stock ALSA configuration (move ~/.asoundrc out of the way
>> temporarily). If you want to use pulseaudio on this card, you MUST
>> tell it to use the "default" device e.g.
>> (as listed by "aplay -L")
>> default:CARD=M66
>>      M Audio Delta 66, ICE1712 multi
>>      Default Audio Device
>> Courtesy of the same ALSA rules that allow default to worj, the SPDIF
>> inputs and outputs work as well:
>> iec958:CARD=M66,DEV=0
>>      M Audio Delta 66, ICE1712 multi
>>      IEC958 (S/PDIF) Digital Audio Output
>> (see http://lalists.stanford.edu/lau/2010/09/0116.html ("Re: [LAU]
>> envy 1712 - infamous but obscure) for details...)
>> (4) After rebooting, either pulseaudio is working on your 1010LT
>> (which is a pretty sad use of this card... see if you can relegate it
>> to your onboard motherboard sound only), or if not, kill pulseaudio
>> (sudo killall pulseaudio (?))
>> Then try using one of the standard devices e.g.
>> "iec958:CARD=M66,DEV=0" to playback a 44.1K 16 bit .wav file, e.g.
>> $ aplay -Diec958:CARD=M66,DEV=0 file.wav
>> Playing WAVE 'file.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
>> Do the SPDIF PCM out meters move in mudita24  (use "envy24control
>> --view_spdif_playback")?? With the appropriate
>> mixing in "Monitor PCMs" and routing  of digital mix to outs in
>> Patchbay/Router panel,  you can also send the spdif out sound to your
>> soundsystem as well. Although if the above worked, "aplay
>> -Ddefault:CARD=M66,DEV=0" should work to send sound to all the outputs
>> simultaneously,using "route_policy duplicate" in the alsa configs.
>> Niels
>> http://nielsmayer.com

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