Hi
We also faced the same problem. We noted that the hiss is dependent on the
frontlight, so if u dim frontlight there is less hiss.
Also, we get a periodic impulsive noise. It seems to have the same
frequency as D8( or D9, Im not sure) and hence we think this is because of
the current drawn by the processor, but that is our theory ofcouse with no
factual backing.
The utility to change mixer is mix. It is available in all the standard
ramdisks I guess.
Reducing Line1 and Line2 also helps in reducing the hiss.
HTH
KAR.
www-scf.usc.edu/~dantu
On Tue, 26 Jun 2001, James Esteves wrote:
>
> I'm trying to record .wav files using sox via Neponset board but I'm
> getting alot of this thumbing/hissing background...Is there a solution
> workaround for this? Also, is there a linux utility to change the mixer
> settings? Thanks in advance.
>
> I'm running 2.4.3-rk2-np1
>
> James Esteves
>
>
> _______________________________________________
> http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm
> Please visit the above address for information on this list.
>
_______________________________________________
http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm
Please visit the above address for information on this list.
