Transcode no sound

[vibidoo]

Hello

I am trying to transcode Tv from Composite 1
I get a good image video but no sound at all

The different codes I use :

transcode -i /dev/video0 -p /dev/dsp -o vid25.avi -x v4l -c 00:01:00 -f 25 -y ffmpeg -F mpeg4 -a 0 -e 44100,16,2 -n 0x1

transcode -i /dev/video0 -p /dev/dsp -o test25.avi -x v4l -c 00:01:00 -y ffmpeg -F mpeg4 -E 44100,16,2 --lame_preset / medium

transcode -x v4l -c 00:01:00 -p /dev/dsp -i /dev/video0 -y raw,raw -o vid25.avi -f 25

Here one of the logs

[transcode] auto-probing source /dev/video0 (failed)
[transcode] V: import format | unknown (V=v4l|A=(null))
[transcode] V: import frame | 720x576 1.25:1
[transcode] V: bits/pixel | 0.174
[transcode] V: decoding fps,frc | 25.000,0
[transcode] V: Y'CbCr | YV12/I420
[transcode] A: import format | 0x1 PCM [44100,16,2]
[transcode] A: export format | 0x55 MPEG layer-3 [44100,16,2] 128 kbps
[transcode] V: encoding fps,frc | 25.000,3
[transcode] A: bytes per frame | 7056 (7056.000000)
[transcode] A: adjustment | 0@1000
[transcode] V: IA32/AMD64 accel | sse2 (sse2 sse mmxext mmx asm C)
[transcode] V: video buffer | 10 @ 720x576
[import_v4l.so] video4linux audio grabbing
(audio.c) audio blocksize 4096
[import_v4l.so] video4linux video grabbing
(video.c) (audio-Television): muted=yes volume=88% bass=50% treble=50%
(video.c) picture: brightness=50% hue=50% colour=50% contrast=50%
(video.c) 8 frame buffer(s) available
(video.c) recording limited to 1500 frames.
[import_v4l.so] dropping 15 video frames for AV sync


I got a failed with /dev/video0 but the video are ok but still no sound

I used alsa to manage sound , aux is unmuted as PCM , Master , Headphone

Thanks a lot for your help