Re: [Alsa-user] Need help getting Edirol SD-90 (USB) working

[Jim G. <als...@gr...>]

I turned the volume way down and got somewhat recognizable sound. It
is heavily distorted, and plays only on the left side. There's a lot
of static and it sounds like it's being modulated by a low frequency.
Could it be something like a buffering problem?

On Wed, Apr 28, 2010 at 11:57, Jim Grusendorf <als...@gr...> wrote:
> I couldn't find a usbquirks.h file, but I found the lines from the
> patch in alsa-kernel/usb/quirks-table.h and edited it manually. We've
> made progress! I now have sound, but it is mostly static, buzzes, and
> squeals.
>
> On Wed, Apr 28, 2010 at 09:54, Clemens Ladisch <cl...@la...> wrote:
>> Jim Grusendorf wrote:
>>> I know this isn't the place for general tutorials, but I'm wondering
>>> if someone could give me the commands to accomplish this. I'm
>>> attempting to follow a tutorial for recompiling the kernel
>>> (https://help.ubuntu.com/community/Kernel/Compile), but unfortunately
>>> know nothing about patching.
>>
>> Reinstalling the kernel can be dangerous if you don't know what you're
>> doing; I'd recommend you patch the separate driver package:
>>
>> 1) Install the linux-headers package;
>> 2) download ftp://ftp.alsa-project.org/pub/driver/alsa-driver-1.0.23.tar.bz2
>> 3) unpack it:
>>   tar xjf alsa-driver-1.0.23.tar.bz2
>> 4) cd alsa-driver-1.0.23/alsa-kernel
>> 5) patch -p1 < /where/you/put/the/patchfile
>> 6) cd ..
>> 7) ./configure
>> 8) make
>> 9) sudo make install-modules
>>
>> Then unload and load the snd-usb-audio module, or reboot.
>>
>> (This will overwrite the sound module of your current kernel, so they
>> might get overwritten again if you update the kernel package.)
>>
>>
>> HTH
>> Clemens
>>
>