You trick of different speakers has helped to narrow down the problem.
I'm currently using USB headphones as my default speakers.
I also have regular speakers attached to built-in motherboard sound port.
Originally they both behaved exactly the same. Since I did the "Reset All Settings" I had not retested the normal speakers. But your last post made me go back and retest them.
The normal speakers are now working correctly. But the USB headphones I still have same problem. So it appears am making progress to fixing.
Hopefully the additional information below will be helpful and maybe you'll have more suggestions so that I can completely resolve it.
That particular video clip I linked to didn't have background music. Was trying to avoid linking to a 650MB movie file. Guess I need to be more exact about the way I described the problem.
If I play the mono track mp4 I get NO sound at all. If play some stereo movie files I get background music and no voices.
So to give you a better working example here is a file from your site that gives exactly the problem I'm describing.
I hear the intro music but can't hear the person talking, only on the USB headset. The normal speakers now play everything correctly.
http://www.cccp-project.net/beta/test_files/tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4Do you have any other ideas to fix the USB headset?
Play -> Filters
Default DirectSound Device
Enhanced Video Render (custom presenter)
Audio Switcher ->
Properties
Audio
ffdshow Video Decoder ->
Properties
A: Apple Sound Media Handler [eng](aac, 44100 Hz, mono, 119 kb/s)
ffdshow Audio Decoder ->
Properties
Audio - AAC, stereo, 44100 Hz, 119 kbps (libavcodec)
LAV Splitter ->
Properties
V: Apple Video Media Handler [eng](h264 high L3.1,yuv420p, 1280x720, 1975 kb/s)
A: Apple Sound Media Handler [eng](aac, 44100 Hz, stereo, 119 kb/s)
C:\Users\Public\Video\Sample Videos\tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4
Media Information of: C:\Users\Public\Videos\tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4
General:
Filename: tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4
Filesize: 15.0 MiB
Format:
PlayTime: 00:00:59.833
1 video stream(s), 1 audio stream(s), 0 subtitle stream(s).
Video Stream 0:
Length: 00:00:59.833
Frames: 1436, 24.000 fps, 1975 Kbps
Codec: avc1 (Family: )
Dimensions: 1280x720, AR: 16/9
Audio Stream 0:
Language: English
Codec: AAC LC, A_AAC/MPEG4/LC, AAC Low Complexity
Bitrate: 120 Kbps
Bitrate Mode: CBR
Sampling Rate: 44 KHz
Channel(s): 2 channel
Resolution: 16 bits per sample
File: C:\Users\Public\Videos\tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4
Filter 0: Default DirectSound Device
Filename: quartz.dll
Filter CRC: CRC Unavailable.
Date: ERROR: File Not Found.
Filter 1: Video Renderer
Filename: quartz.dll
Filter CRC: CRC Unavailable.
Date: ERROR: File Not Found.
Filter 2: ffdshow Audio Decoder
Filename: C:\Program Files (x86)\Combined Community Codec Pack\Filters\FFDShow\ffdshow.ax
Filter CRC: 7FAFBD03
Date: 2011-11-04 | 12:48:46
Filter 3: ffdshow Video Decoder
Filename: C:\Program Files (x86)\Combined Community Codec Pack\Filters\FFDShow\ffdshow.ax
Filter CRC: 7FAFBD03
Date: 2011-11-04 | 12:48:46
Filter 4: LAV Splitter
Filename: C:\Program Files (x86)\Combined Community Codec Pack\Filters\LAVFilters\LAVSplitter.ax
Filter CRC: D8F7CD2F
Date: 2011-11-10 | 18:05:10
Filter 5: C:\Users\Public\Videos\tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4
Filename: quartz.dll
Filter CRC: CRC Unavailable.
Date: ERROR: File Not Found.
CRC of C:\Users\Public\Videos\tekzilla--tzdaily--0196--2008-10-07ffhist--hd.h264.mp4 is 0502F977