On Sat, 4 Mar 2006, dewmaster100 wrote:
> I've got alsa working on my board. However, I got it working a
> completely different way than from what I read from other people in
> this message board. I could not compile the module with the host
> system, because gcc had a mismatch. Instead of debugging that, I just
> compiled alsa and the driver right into the kernel.
Very sensible thing to do. It's often good to compile direct into kernel
instead of as modules.
> I never installed
> the alsa packages from apt, with the exception of madplay and mpg321.
> Madplay works great, but mpg321's playback sounds terrible.
>
> I would really like to get mpg321 to work, because it is so easy to
> pipe to in C. Madplay doesn't pipe correctly, as it normally recieves
> commands directly from tty. I would like to know if the problem with
> mpg321 has something to do with my method of getting alsa to work.
Given it works with madplay, it should work with other apps.
However, you are, I'm guessing, playing mpeg sound files (mpg's)
which involves a lot of maths in decoding, and madplay does this maths as
integer arithmetic, and I suspect mpg321 does it in floating point.
The FP stuff maybe done in a software FPU emulator, and hence give poor
performance.
Jim
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