Re: ulaw conversion tables

Hannu Savolainen (
Fri, 23 May 1997 12:22:38 +0300 (EET DST)

On Thu, 22 May 1997, Kai Schulte wrote:

> Why does the ulaw-dsp conversion table in the sound driver clip ulaw
> amplitudes larger than 0x60 instead of using a smaller scale for the
> translated signal?
> Is this limitation part of the "sun audio" specification?
I can't remember the origing of the ulaw conversion tables since they were
added to the driver almost 5 years ago. However I think they were copied
from a sample program by Sun.

These tables have been replaced by the correct ones in the latest driver
versions. It should appear in the kernel as soon as Linus has time to
integrate it.

Best regards,

Hannu Savolainen (, (Open Sound System (OSS)) (OSS Free/TASD/VoxWare)