The VideoLAN Forums

Hi there,
I have an annoying problem with the player on WinXP. Sometimes it seems that a video clip is playing a little slower than it should. The effect is that you hear a sound which remembers you on a walk man which batteries are almost empty. This happens every two or three clips for about 5 seconds. Is this a known problem and how can I solve it?

Greetings

matti

I have the same problem. the audio slows down and goes all out of pitch. Not sure if there is anything that can be done about it. I have tried all sorts of codecs but none corrected the problem, and .mkv files have this sound problem in all players on my system, with or without the matroska codec installed.

Do you notice it with all files, or just .mkv?
Are you running on a slow machine? (I have 566mhz, 256 ram, 64mb geforce2)

I have tried dual audio .mkv files, with vlc audio track set to japanese and have not noticed the problem. but, I need subtitles to understand the damn thing, and with video track set to english subtitles, the video skips badly. Probably cause my pc is too slow.

Sorry I'm no help. Maybe someone can help us? But I think in my case anyway I'm sol.

My machine is definately not too slow (athlon xp 1800+, enough memory and fast graphics adapter), I also gave the player a higher scheduling priority. Nothing worked / works.
Maybe there is actually a codec problem, changing system codes won't work at all because VLC uses its own.


-----
I've forgotten to tell that it doesn't matter in which format a media file is.

yes -> same problem here. also skipping-errors at playback-start.


really weird! this has to be fixed!!!


using rme hdsp9632 soundcard here.




messages:

main debug: creating new input thread
main: playlist item `D:\Hard 42 Piano.wav'
main debug: waiting for thread completion
main warning: drive letter D: found in source string
main debug: access `', demux `', name `D:\Hard 42 Piano.wav'
main debug: looking for access module
main debug: probing 8 candidates
main debug: thread 3224 (input) created at priority 1 (src/input/input.c:326)
main debug: cmd=state old=10 new=1
dvdplay debug: plugin discarded (not a valid source)
dvdread warning: dvdread module discarded (not a valid source)
vcd debug: trying .cue file: D:\Hard 42 Piano.cue
vcd warning: could not open D:\Hard 42 Piano.wav
cdda debug: trying .cue file: D:\Hard 42 Piano.cue
cdda warning: could not open D:\Hard 42 Piano.wav
access_file debug: opening file `D:\Hard 42 Piano.wav'
main debug: using access module "access_file"
main debug: looking for demux module
main debug: probing 7 candidates
dshow warning: dshow plugin discarded (not a valid stream)
dshow warning: dshow plugin discarded (not a valid stream)
ts_dvbpsi warning: TS module discarded (no sync)
ts warning: TS module discarded (no sync)
main debug: demux2_New: '://D:\Hard 42 Piano.wav' -> access='' demux='' path='D:\Hard 42 Piano.wav'
main debug: looking for demux2 module
main debug: probing 27 candidates
mp4 warning: MP4 plugin discarded (not a valid file)
avi warning: avi module discarded (invalid header)
asf warning: ASF plugin discarded (not a valid file)
flac warning: flac module discarded (no startcode)
wav debug: Chunk: fcc=`fmt ` size=16
wav debug: format: 0x0001, fourcc: araw, channels: 2, freq: 44100 Hz, bitrate: 172Ko/s, blockalign: 4, bits/samples: 16, extra size: 0
wav debug: found Raw audio audio format
wav debug: Chunk: fcc=`cue ` size=52
wav debug: Chunk: fcc=`data` size=15394908
main debug: using demux2 module "wav"
main debug: using demux module "demux2"
main debug: looking for a subtitle file in D:\
main debug: selecting ES 0x1
main debug: looking for decoder module
main debug: probing 22 candidates
araw debug: samplerate:44100Hz channels:2 bits/sample:16
main debug: using decoder module "araw"
main debug: thread 3280 (decoder) created at priority 2 (src/input/input_dec.c:161)
main debug: looking for audio output module
main debug: probing 4 candidates
aout_directx debug: OpenAudio
main debug: playing at normal rate
aout_directx debug: device supports 2 channels
aout_directx debug: device supports 1 channel
aout_directx debug: creating DirectSoundThread
main debug: thread 3412 (DirectSound Notification Thread) created at priority 15 (directx.c:357)
aout_directx debug: DirectSoundThread ready
main debug: using audio output module "aout_directx"
main debug: output 's16l' 44100 Hz Stereo frame=1 samples/4 bytes
main debug: mixer 's16l' 44100 Hz Stereo frame=1 samples/4 bytes
main debug: filter(s) 'fl32'->'s16l' 44100 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module
main debug: probing 22 candidates
main debug: using audio filter module "float32tos16"
main debug: found a filter for the whole conversion
main debug: looking for audio mixer module
main debug: probing 3 candidates
main debug: using audio mixer module "float32_mixer"
main debug: input 's16l' 44100 Hz Stereo frame=1 samples/4 bytes
main debug: filter(s) 's16l'->'fl32' 44100 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module
main debug: probing 22 candidates
main debug: using audio filter module "s16tofloat32"
main debug: found a filter for the whole conversion
main debug: filter(s) 'fl32'->'fl32' 48510 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module
main debug: probing 22 candidates
main debug: using audio filter module "bandlimited_resampler"
main debug: found a filter for the whole conversion
main warning: output date isn't PTS date, requesting resampling (70064)
main warning: buffer is 70064 late, triggering upsampling
main warning: output date isn't PTS date, requesting resampling (360804)
main warning: output date isn't PTS date, requesting resampling (-46329)
main warning: timing screwed, stopping resampling
main warning: buffer is 383700 late, triggering upsampling
main warning: output date isn't PTS date, requesting resampling (46333)
main warning: output date isn't PTS date, requesting resampling (-46325)
main warning: output date isn't PTS date, requesting resampling (46337)
main warning: output date isn't PTS date, requesting resampling (-46324)
main warning: output date isn't PTS date, requesting resampling (46321)
main debug: audio output is starving (91379), playing silence
main warning: output date isn't PTS date, requesting resampling (-46324)
main warning: output date isn't PTS date, requesting resampling (45979)
main warning: output date isn't PTS date, requesting resampling (-46033)
main warning: output date isn't PTS date, requesting resampling (46363)
main warning: output date isn't PTS date, requesting resampling (-46321)
main warning: output date isn't PTS date, requesting resampling (46333)
main debug: audio output is starving (91380), playing silence
main warning: output date isn't PTS date, requesting resampling (-46308)
main warning: output date isn't PTS date, requesting resampling (46323)
main warning: output date isn't PTS date, requesting resampling (-46324)
main warning: output date isn't PTS date, requesting resampling (46327)
main warning: output date isn't PTS date, requesting resampling (-46325)
main warning: output date isn't PTS date, requesting resampling (46312)
main debug: audio output is starving (91386), playing silence
main warning: output date isn't PTS date, requesting resampling (-46324)
main warning: output date isn't PTS date, requesting resampling (46311)
main warning: output date isn't PTS date, requesting resampling (-46325)
main warning: output date isn't PTS date, requesting resampling (46329)
main warning: output date isn't PTS date, requesting resampling (-46328)
main warning: output date isn't PTS date, requesting resampling (46334)
main debug: audio output is starving (91379), playing silence
main warning: output date isn't PTS date, requesting resampling (-46300)
main warning: output date isn't PTS date, requesting resampling (46306)
main warning: output date isn't PTS date, requesting resampling (-46335)
main warning: output date isn't PTS date, requesting resampling (46339)
main warning: output date isn't PTS date, requesting resampling (-46304)
main warning: output date isn't PTS date, requesting resampling (46295)
main debug: audio output is starving (91505), playing silence
main warning: output date isn't PTS date, requesting resampling (-46310)
main warning: output date isn't PTS date, requesting resampling (46319)
main warning: output date isn't PTS date, requesting resampling (-46324)
main warning: output date isn't PTS date, requesting resampling (46335)
main warning: output date isn't PTS date, requesting resampling (-46326)
main warning: output date isn't PTS date, requesting resampling (46324)
main debug: audio output is starving (91392), playing silence
main warning: output date isn't PTS date, requesting resampling (-46343)
main warning: output date isn't PTS date, requesting resampling (46330)
main warning: output date isn't PTS date, requesting resampling (-46343)
main warning: output date isn't PTS date, requesting resampling (46340)
main warning: output date isn't PTS date, requesting resampling (-46343)
main warning: output date isn't PTS date, requesting resampling (46349)
main debug: audio output is starving (91397), playing silence
main warning: output date isn't PTS date, requesting resampling (-46320)
main warning: output date isn't PTS date, requesting resampling (46332)
main warning: output date isn't PTS date, requesting resampling (-46338)
main warning: output date isn't PTS date, requesting resampling (46316)
main warning: output date isn't PTS date, requesting resampling (-46341)
main warning: output date isn't PTS date, requesting resampling (46340)
main debug: audio output is starving (91400), playing silence
main warning: output date isn't PTS date, requesting resampling (-46323)
main warning: output date isn't PTS date, requesting resampling (46330)
main warning: output date isn't PTS date, requesting resampling (-46339)
main warning: output date isn't PTS date, requesting resampling (46342)
main warning: output date isn't PTS date, requesting resampling (-46336)
main warning: output date isn't PTS date, requesting resampling (46356)
main debug: audio output is starving (91393), playing silence
main warning: output date isn't PTS date, requesting resampling (-46319)
main warning: output date isn't PTS date, requesting resampling (46302)
main warning: output date isn't PTS date, requesting resampling (-46340)
main warning: output date isn't PTS date, requesting resampling (46342)
main warning: output date isn't PTS date, requesting resampling (-46341)
main warning: output date isn't PTS date, requesting resampling (46350)
main debug: audio output is starving (91398), playing silence
main warning: output date isn't PTS date, requesting resampling (-46328)
main warning: output date isn't PTS date, requesting resampling (46320)
main warning: output date isn't PTS date, requesting resampling (-46336)
main warning: output date isn't PTS date, requesting resampling (46360)
main warning: output date isn't PTS date, requesting resampling (-46340)
main warning: output date isn't PTS date, requesting resampling (46333)
main debug: audio output is starving (91391), playing silence
main warning: output date isn't PTS date, requesting resampling (-46335)
main warning: output date isn't PTS date, requesting resampling (46320)
main warning: output date isn't PTS date, requesting resampling (-46342)
main warning: output date isn't PTS date, requesting resampling (46341)
main warning: output date isn't PTS date, requesting resampling (-46339)
main warning: output date isn't PTS date, requesting resampling (46342)
main debug: audio output is starving (91401), playing silence
main warning: output date isn't PTS date, requesting resampling (-46320)
main warning: output date isn't PTS date, requesting resampling (46327)
main warning: output date isn't PTS date, requesting resampling (-46337)
main warning: output date isn't PTS date, requesting resampling (46324)
main warning: output date isn't PTS date, requesting resampling (-46344)
main warning: output date isn't PTS date, requesting resampling (46358)
main debug: audio output is starving (91390), playing silence
main warning: output date isn't PTS date, requesting resampling (-46343)
main warning: output date isn't PTS date, requesting resampling (46348)
main warning: output date isn't PTS date, requesting resampling (-46341)
main warning: output date isn't PTS date, requesting resampling (46343)
main warning: output date isn't PTS date, requesting resampling (-46344)
main warning: output date isn't PTS date, requesting resampling (46357)
main debug: audio output is starving (91394), playing silence
main warning: output date isn't PTS date, requesting resampling (-46341)
main warning: output date isn't PTS date, requesting resampling (46323)
main warning: output date isn't PTS date, requesting resampling (-46342)
main warning: output date isn't PTS date, requesting resampling (46351)
main warning: output date isn't PTS date, requesting resampling (-46337)
main warning: output date isn't PTS date, requesting resampling (46330)
main debug: audio output is starving (91397), playing silence
main warning: output date isn't PTS date, requesting resampling (-46318)
main warning: output date isn't PTS date, requesting resampling (46336)
main warning: output date isn't PTS date, requesting resampling (-46335)
main warning: output date isn't PTS date, requesting resampling (46329)
main warning: output date isn't PTS date, requesting resampling (-46339)
main warning: output date isn't PTS date, requesting resampling (46330)
main debug: audio output is starving (91395), playing silence
main warning: output date isn't PTS date, requesting resampling (-46319)
main warning: output date isn't PTS date, requesting resampling (46329)
main warning: output date isn't PTS date, requesting resampling (-46333)
main warning: output date isn't PTS date, requesting resampling (46320)
main warning: output date isn't PTS date, requesting resampling (-46343)
main warning: output date isn't PTS date, requesting resampling (46345)
main debug: audio output is starving (91397), playing silence
main warning: output date isn't PTS date, requesting resampling (-46310)
main warning: output date isn't PTS date, requesting resampling (46301)
main warning: output date isn't PTS date, requesting resampling (-46345)
main warning: output date isn't PTS date, requesting resampling (46352)
main warning: output date isn't PTS date, requesting resampling (-46342)
main warning: output date isn't PTS date, requesting resampling (46350)
main debug: audio output is starving (91394), playing silence
main warning: output date isn't PTS date, requesting resampling (-46322)
main warning: output date isn't PTS date, requesting resampling (46332)
main warning: output date isn't PTS date, requesting resampling (-46337)
main warning: output date isn't PTS date, requesting resampling (46339)
main warning: output date isn't PTS date, requesting resampling (-46342)
main warning: output date isn't PTS date, requesting resampling (46356)
main debug: audio output is starving (91391), playing silence
main warning: output date isn't PTS date, requesting resampling (-46320)
main warning: output date isn't PTS date, requesting resampling (46313)
main warning: resampling stopped after 10908512 usec
main warning: buffer is 42615 late, triggering upsampling
main debug: 305 loops
main debug: dumping stream ID 0x0 [OK:0/D:0]
main debug: seekable stream, position: 2690204/15395012 (-:--:--/-:--:--)
main debug: dumping program 0x0, version 0 (partial)
main debug: ES 0x0, stream 0x0, fourcc `null', not selected [OK:0/ERR:0]
main debug: ES 0x1, stream 0x0, fourcc `araw', selected [OK:0/ERR:0]
main debug: unlocking module "wav"
main debug: unlocking module "demux2"
main debug: unselecting ES 0x1
main debug: unlocking module "araw"
main debug: thread 3280 joined (src/input/input_dec.c:203)
main debug: killing decoder fourcc `araw', 0 PES in FIFO
main debug: unlocking module "s16tofloat32"
main debug: unlocking module "bandlimited_resampler"
aout_directx debug: CloseAudio
aout_directx debug: DirectSoundThread exiting
main debug: thread 3412 joined (directx.c:576)
main debug: unlocking module "aout_directx"
main debug: unlocking module "float32tos16"
main debug: unlocking module "float32_mixer"
main debug: no more selected ES
access_file: closing `/://D:\Hard 42 Piano.wav'
main debug: unlocking module "access_file"
main debug: pes: 0 packets
main debug: data: 0 packets
main debug: buffers: 2 packets
main debug: freeing info structures...
main debug: thread 3224 joined (src/input/input.c:373)



_____________________
windows xp sp1
vlc 0.7.2

bump

yesterday i installed vlc on a friends notebook (1.4ghz p4 with build in sound)

-> his machine has absolutely no problems. no strange pitched sound when the playback starts. no dropouts. no warning-messages (like 'output date isn't PTS date, requesting resampling').


so for me it looks like vlc has massive problems with soundcards that don't have real wdm/directx-drivers. like i said: i'm using an rme hdsp9632 and windows only emulates the directx-drivers. so it seems vlc can't handle that good. other applications (foobar2000, adobe audition or windows media player) on my system don't have these problems like vlc. but they give me the option to select the real wave/mme-drivers instead of wdm-drivers/directx-sound!


comments on this one?

You can also select VLC's wav sound driver.
Settings->Preferences->Audio>Audio output module

"Advanced options" might need to be checked for this option to be visible

yes. i forgot. but then it comes to this: viewtopic.php?t=3500

'fixed' in latest nightly build (option to disable float32 under 'modules' -> 'audio
output' -> 'waveout', so that i can use win32-waveout-output now)