Mono MP3 is silent/muted

[rightman]

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.

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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%)

[VLC_help]

Is there short sample file you could share to us?

[rightman]

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

[rightman]

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

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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

[VLC_help]

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

[rightman]

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?

[Jean-Baptiste Kempf]

Use VLC 1.1.2 release. not -git.

[rightman]

I uninstalled the git version and installed the release version.

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

[Lotesdelere]

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

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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:

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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.

[rightman]

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.

[rightman]

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%|