The VideoLAN Forums

Posted: **14 Aug 2010 13:26**

Hi,
i want to play a mp3 podcast which is recorded in mono. And i can't hear sound at all. Windows mediaplayer does play fine.
I think the vlc cant handle the mono right.

Code: Select all

Audio
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 3
Duration                         : 1h 28min
Bit rate mode                    : konstant
Bit rate                         : 80,0 Kbps
Channel(s)                       : 1 Kanal
Sampling rate                    : 44,1 KHz
Stream size                      : 50,7 MiB (100%)

Posted: **14 Aug 2010 15:08**

Is there short sample file you could share to us?

Posted: **14 Aug 2010 15:41**

My file has 51Mb. It is from engadget.com

http://podcasts.aolcdn.com/engadget/pod ... st_208.mp3

Either that file is fine for you, or I have to look how I can cut the mp3 in a shorter file

Posted: **14 Aug 2010 17:25**

I have activatet logging in verbosity lvl2.
Here you have it:

Code: Select all

main debug: processing request item Engadget Podcast 208 - 08.13.2010 node Wiedergabeliste skip 0
main debug: resyncing on Engadget Podcast 208 - 08.13.2010
main debug: Engadget Podcast 208 - 08.13.2010 is at 0
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for 'Engadget Podcast 208 - 08.13.2010'
main debug: thread (input) created at priority 1 (input/input.c:214)
main debug: thread started
main debug: using timeshift granularity of 50 MiB
main debug: using timeshift path 'C:\Users\[...censored...]\AppData\Local\Temp'
main debug: `file:///E:/[...censored...]/Desktop/Engadget_Podcast_208.mp3' gives access `file' demux `' path `E:\[...censored...]\Desktop\Engadget_Podcast_208.mp3'
main debug: creating demux: access='file' demux='' path='E:\[...censored...]\Desktop\Engadget_Podcast_208.mp3'
main debug: looking for access_demux module: 2 candidates
main debug: no access_demux module matching "file" could be loaded
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: creating access 'file' path='E:\[...censored...]\Desktop\Engadget_Podcast_208.mp3'
main debug: looking for access module: 2 candidates
filesystem debug: opening file `E:\[...censored...]\Desktop\Engadget_Podcast_208.mp3'
main debug: using access module "filesystem"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: Using AStream*Stream
main debug: pre buffering
main debug: received first data after 0 ms
main debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s
main debug: looking for stream_filter module: 2 candidates
main debug: no stream_filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for stream_filter module: 1 candidate
main debug: using stream_filter module "stream_filter_record"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: creating demux: access='file' demux='' path='E:\[...censored...]\Desktop\Engadget_Podcast_208.mp3'
main debug: ID3v2.2 revision 0 tag found, skipping 21139 bytes
main debug: looking for demux module: 51 candidates
es debug: detected format mpga
main debug: looking for packetizer module: 21 candidates
main debug: using packetizer module "mpeg_audio"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: using demux module "es"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for a subtitle file in E:\[...censored...]\Desktop\
main debug: looking for meta reader module: 2 candidates
taglib debug: Found embedded art: 0 (image/jpeg) is 10433 bytes
main debug: using meta reader module "taglib"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: removing module "taglib"
main debug: `file:///E:/[...censored...]/Desktop/Engadget_Podcast_208.mp3' successfully opened
mpeg_audio debug: MPGA channels:1 samplerate:44100 bitrate:80
main debug: selecting program id=0
main debug: looking for decoder module: 34 candidates
main debug: using decoder module "mpeg_audio"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread (decoder) created at priority 2 (input/decoder.c:301)
main debug: thread started
main debug: Buffering 0%
main debug: Buffering 8%
main debug: Buffering 17%
main debug: Buffering 26%
main debug: Buffering 34%
main debug: Buffering 43%
main debug: Buffering 52%
main debug: Buffering 60%
main debug: Buffering 69%
main debug: Buffering 78%
main debug: Buffering 87%
main debug: Buffering 95%
main debug: Stream buffering done (313 ms in 1 ms)
mpeg_audio debug: MPGA channels:1 samplerate:44100 bitrate:80
main debug: reusing aout
main info: Reparenting an object is dangerous (01d79f30 -> 01d7a6e8)!
main debug: looking for audio output module: 4 candidates
qt4 debug: IM: Setting an input
waveout debug: Drivername: Microsoft Soundmapper
waveout debug: Driver Version: 5.0
waveout debug: Manufacturer identifier: 0x1
waveout debug: Product identifier: 0x2
waveout debug: device supports 2 channels
waveout debug: device supports 1 channel
waveout debug: OpenWaveDevice-ID: 4294967295
waveout debug: waveformat.Format.cbSize          = 0
waveout debug: waveformat.Format.wFormatTag      = 3
waveout debug: waveformat.Format.nChannels       = 2
waveout debug: waveformat.Format.nSamplesPerSec  = 44100
waveout debug: waveformat.Format.nAvgBytesPerSec = 352800
waveout debug: waveformat.Format.nBlockAlign     = 8
waveout debug: waveformat.Format.wBitsPerSample  = 32
waveout debug: waveformat.Samples.wValidBitsPerSample = 32
waveout debug: waveformat.Samples.wSamplesPerBlock = 32
waveout debug: waveformat.dwChannelMask          = 3
main debug: thread (waveOut Notification Thread) created at priority 1 (waveout.c:348)
main debug: using audio output module "waveout"
main debug: TIMER module_need() : 48.000 ms - Total 48.000 ms / 1 intvls (Avg 48.000 ms)
main debug: output 'f32l' 44100 Hz Stereo/Mono frame=1 samples/8 bytes
main debug: mixer 'f32l' 44100 Hz Stereo/Mono frame=1 samples/8 bytes
main debug: no need for any filter
main debug: looking for audio mixer module: 3 candidates
main debug: using audio mixer module "float32_mixer"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: input 'mpga' 44100 Hz Mono frame=1152 samples/1053 bytes
main debug: looking for audio filter module: 1 candidate
scaletempo debug: format: 44100 rate, 2 nch, 4 bps, fl32
scaletempo debug: params: 30 stride, 0.200 overlap, 14 search
scaletempo debug: 1.000 scale, 1323.000 stride_in, 1323 stride_out, 1059 standing, 264 overlap, 617 search, 2204 queue, fl32 mode
main debug: using audio filter module "scaletempo"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: filter(s) 'mpga'->'f32l' 44100 Hz->44100 Hz Mono->Stereo/Mono
main debug: looking for audio filter module: 14 candidates
main debug: no audio filter module matching "any" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for audio filter module: 14 candidates
mpgatofixed32 debug: mpga->f32l, bits per sample: 0
main debug: using audio filter module "mpgatofixed32"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for audio filter module: 14 candidates
main debug: using audio filter module "trivial_channel_mixer"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: found 2 filters for the whole conversion
main debug: filter(s) 'f32l'->'f32l' 48510 Hz->44100 Hz Stereo/Mono->Stereo/Mono
main debug: looking for audio filter module: 14 candidates
bandlimited_resampler debug: f32l/48510KHz/2->f32l/44100KHz/2
main debug: using audio filter module "bandlimited_resampler"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: found a filter for the whole conversion
main debug: End of audio preroll
main debug: thread started
main debug: Decoder buffering done in 49 ms
main warning: PTS is out of range (-10000), dropping buffer
main warning: PTS is out of range (-36122), dropping buffer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
waveout debug: Wakeup sleeping output thread.
waveout debug: will start to play in 52244 us

Posted: **15 Aug 2010 16:13**

Works just fine in here. Are you using VLC 1.1.2? And have you tried DirectSound audio output modules?
http://wiki.videolan.org/WindowsFAQ-1.1 ... _anomalies

Posted: **15 Aug 2010 16:30**

I'm using VLC 1.1.2-git The Luggage

I use win32 wave out
There is no directsound method, or did you mean dirext-audio module?

Posted: **16 Aug 2010 11:48**

Use VLC 1.1.2 release. not -git.

Posted: **16 Aug 2010 12:57**

I uninstalled the git version and installed the release version.

but still no sound from that podcast, which I linked above.

Posted: **16 Aug 2010 14:27**

It's playing fine for me with both WaveOut and DirectSound:

Code: Select all

WAVEOUT:
main debug: thread (waveOut Notification Thread) created at priority 1 (../../.././modules/audio_output/waveout.c:348)
main debug: using audio output module "waveout"
main debug: output 'f32l' 44100 Hz Stereo/Mono frame=1 samples/8 bytes
main debug: mixer 'f32l' 44100 Hz Stereo/Mono frame=1 samples/8 bytes


DIRECTSOUND:
aout_directx debug: creating DirectSoundThread
main debug: thread started
main debug: thread (DirectSound Notification Thread) created at priority 15 (../../.././modules/audio_output/directx.c:321)
aout_directx debug: DirectSoundThread ready
main debug: using audio output module "aout_directx"
main debug: output 'f32l' 44100 Hz Stereo/Mono frame=1 samples/8 bytes
main debug: mixer 'f32l' 44100 Hz Stereo/Mono frame=1 samples/8 bytes
main debug: no need for any filter

Even though there are few error messages:

Code: Select all

main warning: PTS is out of range (-10000), dropping buffer
main warning: PTS is out of range (-36122), dropping buffer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer

So I suspect a driver issue. You should reinstall / update both your sound card driver and DirectX 9.

Posted: **16 Aug 2010 15:48**

Do you really think, that it is a driver issue?
But why does Windows Media Player 12 and Foobar 2000 play fine and VLC does not?

Other Music Files play fine with VLC.

I did run dxdiag and there are no error in dx11

Hm....

EDIT: OMG that is so freaking weird

I did play that file again and still no sound. Then I did look at extras->codec-information->statistics. And the file was being read. Next I looked at that volume rocker on the bottom right of vlc. And it was at 100% (like it should be). But then I did use the mouse wheel to scroll louder. And pow...I heard something. After that I went back to 100% and still heard the podcast.

So thats weird. And it wasn't muted. It was on 100% before.

Posted: **16 Aug 2010 15:55**

I found another weird behaviour of VLC.

That sound rocker can be scrolled through twice with the mouse wheel like this: |0%-----100%-0%-----100%|

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