2 Nov
2006
2 Nov
'06
5:04 p.m.
James Courtier-Dutton wrote:
lemmel wrote:
This is probably an application problem. There is a special case that if
the application does not write a full period to the sound card before
calling snd_pcm_drain(), the last samples(incomplete period) written
might not be played.
The recommended way to use the sound card drivers is to use a callback
method. The callback will ask for a period at a time, so it is made
clear to the application writer that they HAVE to send an entire period.
This might help you.
James
James
Le jeudi 02 novembre 2006 09:44, vous avez écrit
:
In order to
lighten, I will take an example : a 3 secondes sound file.
0------------------------------>1.5---------------------------------------->3s
a beep on a channel a beep on the other channel
the sound can be truncated at this time position : 1.5, 2, even at 1.
It is rather difficult to be accurate for the real duration is small
(the wav file is available at
http://maleelma.free.fr/lemmel/test.wav.bz2), and I am focusing on the
choice of a sound system.
We, unless this is actually reported to the alsa bug tracker at
http://alsa-project.org/ it might not get fixed or even investigated
further.
Were there samples missing at the beginning or at
the end?
At the end
and even
randomly truncated,
What do you mean with "randomly"? What sound card/kernel version/ALSA version are
you using?
see an another post of mine.