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Table of Contents:
C-Media CM-108 USB Headphone Set
Hardware
| Name: | C-Media USB Headphone Set |
| System: | HP d230 MT (DQ357T) Desktop PC,Windows XP SP2, P4 2.6GHz, 1GB RAM |
| Vendor: | C-Media? |
| Chipset: | C-Media CM108 |
| Driver: | Microsoft, 7/1/2001, ver 5.1.2535.0 |
Results
Test Date: 25/02/2008:
Software:
- PJMEDIA, PortAudio WMME, version 0.8-trunk date 25/02/2008, Release version
Results:
| 8 HKz | 16 KHz | 44.1KHz | 48 KHz | |
| Play jitter (min/avg/max) | 9.996/23.070/30.254 | 9.996/23.428/40.040 | 9.996/23.306/30.283 | 9.996/23.306/30.282 |
| Rec jitter (min/avg/max) | 9.997/23.071/30.526 | 9.997/23.429/39.922 | 9.996/23.308/30.278 | 9.996/23.307/30.170 |
| playback-capture drifts (samples/sec) | 0 | -48 | -132 | -143 |
Test logs
@8KHz:
15:17:11.688 os_core_win32. pjlib 0.8.0-trunk for win32 initialized 15:17:11.797 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:17:11.797 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:17:11.797 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:17:11.797 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:17:11.969 pasound.c PortAudio sound library initialized, status=0 15:17:11.969 pasound.c PortAudio host api count=3 15:17:11.969 pasound.c Sound device count=12 15:17:11.969 pjlib WinNT IOCP I/O Queue created (0085681C) 15:17:11.969 sndtest.c Found 12 devices: 15:17:11.969 sndtest.c 0: Microsoft Sound Mapper - Input (capture=2, playback=0) 15:17:11.969 sndtest.c 1: C-Media USB Headphone Set (capture=2, playback=0) 15:17:11.969 sndtest.c 2: SoundMAX Digital Audio (capture=2, playback=0) 15:17:11.969 sndtest.c 3: Microsoft Sound Mapper - Output (capture=0, playback=2) 15:17:11.969 sndtest.c 4: C-Media USB Headphone Set (capture=0, playback=2) 15:17:11.969 sndtest.c 5: SoundMAX Digital Audio (capture=0, playback=2) 15:17:11.969 sndtest.c 6: Primary Sound Capture Driver (capture=1, playback=0) 15:17:11.969 sndtest.c 7: C-Media USB Headphone Set (capture=1, playback=0) 15:17:11.969 sndtest.c 8: SoundMAX Digital Audio (capture=2, playback=0) 15:17:11.969 sndtest.c 9: Primary Sound Driver (capture=0, playback=2) 15:17:11.969 sndtest.c 10: C-Media USB Headphone Set (capture=0, playback=2) 15:17:11.969 sndtest.c 11: SoundMAX Digital Audio (capture=0, playback=2) 15:17:12.032 sndtest.c Testing playback device Microsoft Sound Mapper - Output 15:17:12.032 sndtest.c Testing capture device Microsoft Sound Mapper - Input 15:17:12.235 sndtest.c Please wait while test is in progress (~11 secs).. 15:17:23.344 sndtest.c Dumping results: 15:17:23.344 sndtest.c Parameters: clock rate=8000Hz, 80 samples/frame 15:17:23.344 sndtest.c Playback stream report: 15:17:23.344 sndtest.c Duration: 10s.110 15:17:23.344 sndtest.c Frame interval: min=0.001ms, max=30.256ms 15:17:23.344 sndtest.c Jitter: min=9.996ms, avg=23.070ms, max=30.254ms 15:17:23.344 sndtest.c Capture stream report: 15:17:23.344 sndtest.c Duration: 10s.110 15:17:23.344 sndtest.c Frame interval: min=0.001ms, max=30.528ms 15:17:23.344 sndtest.c Jitter: min=9.997ms, avg=23.071ms, max=30.526ms 15:17:23.344 sndtest.c Checking for clock drifts: 15:17:23.344 sndtest.c No clock drifts is detected 15:17:23.344 sndtest.c Test completed with some warnings
@16KHz:
15:19:22.922 os_core_win32. pjlib 0.8.0-trunk for win32 initialized 15:19:23.016 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:19:23.016 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:19:23.016 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:19:23.016 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:19:23.188 pasound.c PortAudio sound library initialized, status=0 15:19:23.188 pasound.c PortAudio host api count=3 15:19:23.188 pasound.c Sound device count=12 15:19:23.188 pjlib WinNT IOCP I/O Queue created (0085681C) 15:19:23.188 sndtest.c Found 12 devices: 15:19:23.188 sndtest.c 0: Microsoft Sound Mapper - Input (capture=2, playback=0) 15:19:23.188 sndtest.c 1: C-Media USB Headphone Set (capture=2, playback=0) 15:19:23.188 sndtest.c 2: SoundMAX Digital Audio (capture=2, playback=0) 15:19:23.188 sndtest.c 3: Microsoft Sound Mapper - Output (capture=0, playback=2) 15:19:23.188 sndtest.c 4: C-Media USB Headphone Set (capture=0, playback=2) 15:19:23.188 sndtest.c 5: SoundMAX Digital Audio (capture=0, playback=2) 15:19:23.188 sndtest.c 6: Primary Sound Capture Driver (capture=1, playback=0) 15:19:23.188 sndtest.c 7: C-Media USB Headphone Set (capture=1, playback=0) 15:19:23.188 sndtest.c 8: SoundMAX Digital Audio (capture=2, playback=0) 15:19:23.188 sndtest.c 9: Primary Sound Driver (capture=0, playback=2) 15:19:23.188 sndtest.c 10: C-Media USB Headphone Set (capture=0, playback=2) 15:19:23.188 sndtest.c 11: SoundMAX Digital Audio (capture=0, playback=2) 15:19:23.250 sndtest.c Testing playback device Microsoft Sound Mapper - Output 15:19:23.250 sndtest.c Testing capture device Microsoft Sound Mapper - Input 15:19:23.454 sndtest.c Please wait while test is in progress (~11 secs).. 15:19:34.625 sndtest.c Dumping results: 15:19:34.625 sndtest.c Parameters: clock rate=16000Hz, 160 samples/frame 15:19:34.625 sndtest.c Playback stream report: 15:19:34.625 sndtest.c Duration: 9s.960 15:19:34.625 sndtest.c Frame interval: min=0.001ms, max=40.043ms 15:19:34.625 sndtest.c Jitter: min=9.996ms, avg=23.428ms, max=40.040ms 15:19:34.625 sndtest.c Capture stream report: 15:19:34.625 sndtest.c Duration: 9s.930 15:19:34.625 sndtest.c Frame interval: min=0.001ms, max=39.924ms 15:19:34.625 sndtest.c Jitter: min=9.997ms, avg=23.429ms, max=39.922ms 15:19:34.625 sndtest.c Checking for clock drifts: 15:19:34.625 sndtest.c Sound capture is 480 samples faster than playback at the end of the test (average is 48 samples per second) 15:19:34.625 sndtest.c Test completed with some warnings
@44.1KHz:
15:22:11.625 os_core_win32. pjlib 0.8.0-trunk for win32 initialized 15:22:11.735 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:22:11.735 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:22:11.735 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:22:11.735 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:22:11.891 pasound.c PortAudio sound library initialized, status=0 15:22:11.907 pasound.c PortAudio host api count=3 15:22:11.907 pasound.c Sound device count=12 15:22:11.907 pjlib WinNT IOCP I/O Queue created (0085681C) 15:22:11.907 sndtest.c Found 12 devices: 15:22:11.907 sndtest.c 0: Microsoft Sound Mapper - Input (capture=2, playback=0) 15:22:11.907 sndtest.c 1: C-Media USB Headphone Set (capture=2, playback=0) 15:22:11.907 sndtest.c 2: SoundMAX Digital Audio (capture=2, playback=0) 15:22:11.907 sndtest.c 3: Microsoft Sound Mapper - Output (capture=0, playback=2) 15:22:11.907 sndtest.c 4: C-Media USB Headphone Set (capture=0, playback=2) 15:22:11.907 sndtest.c 5: SoundMAX Digital Audio (capture=0, playback=2) 15:22:11.907 sndtest.c 6: Primary Sound Capture Driver (capture=1, playback=0) 15:22:11.907 sndtest.c 7: C-Media USB Headphone Set (capture=1, playback=0) 15:22:11.907 sndtest.c 8: SoundMAX Digital Audio (capture=2, playback=0) 15:22:11.907 sndtest.c 9: Primary Sound Driver (capture=0, playback=2) 15:22:11.907 sndtest.c 10: C-Media USB Headphone Set (capture=0, playback=2) 15:22:11.907 sndtest.c 11: SoundMAX Digital Audio (capture=0, playback=2) 15:22:11.969 sndtest.c Testing playback device Microsoft Sound Mapper - Output 15:22:11.969 sndtest.c Testing capture device Microsoft Sound Mapper - Input 15:22:12.172 sndtest.c Please wait while test is in progress (~11 secs).. 15:22:23.297 sndtest.c Dumping results: 15:22:23.297 sndtest.c Parameters: clock rate=44100Hz, 441 samples/frame 15:22:23.297 sndtest.c Playback stream report: 15:22:23.297 sndtest.c Duration: 9s.990 15:22:23.297 sndtest.c Frame interval: min=0.002ms, max=30.286ms 15:22:23.297 sndtest.c Jitter: min=9.996ms, avg=23.306ms, max=30.283ms 15:22:23.297 sndtest.c Capture stream report: 15:22:23.297 sndtest.c Duration: 10s.020 15:22:23.297 sndtest.c Frame interval: min=0.003ms, max=30.281ms 15:22:23.297 sndtest.c Jitter: min=9.996ms, avg=23.308ms, max=30.278ms 15:22:23.297 sndtest.c Checking for clock drifts: 15:22:23.297 sndtest.c Sound capture is 1323 samples faster than playback at the end of the test (average is 132 samples per second) 15:22:23.297 sndtest.c Test completed with some warnings
@48KHz:
15:24:43.922 os_core_win32. pjlib 0.8.0-trunk for win32 initialized 15:24:44.032 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:24:44.032 pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2. 15:24:44.032 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:24:44.032 pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2. 15:24:44.188 pasound.c PortAudio sound library initialized, status=0 15:24:44.204 pasound.c PortAudio host api count=3 15:24:44.204 pasound.c Sound device count=12 15:24:44.204 pjlib WinNT IOCP I/O Queue created (0085681C) 15:24:44.204 sndtest.c Found 12 devices: 15:24:44.204 sndtest.c 0: Microsoft Sound Mapper - Input (capture=2, playback=0) 15:24:44.204 sndtest.c 1: C-Media USB Headphone Set (capture=2, playback=0) 15:24:44.204 sndtest.c 2: SoundMAX Digital Audio (capture=2, playback=0) 15:24:44.204 sndtest.c 3: Microsoft Sound Mapper - Output (capture=0, playback=2) 15:24:44.204 sndtest.c 4: C-Media USB Headphone Set (capture=0, playback=2) 15:24:44.204 sndtest.c 5: SoundMAX Digital Audio (capture=0, playback=2) 15:24:44.204 sndtest.c 6: Primary Sound Capture Driver (capture=1, playback=0) 15:24:44.204 sndtest.c 7: C-Media USB Headphone Set (capture=1, playback=0) 15:24:44.204 sndtest.c 8: SoundMAX Digital Audio (capture=2, playback=0) 15:24:44.204 sndtest.c 9: Primary Sound Driver (capture=0, playback=2) 15:24:44.204 sndtest.c 10: C-Media USB Headphone Set (capture=0, playback=2) 15:24:44.204 sndtest.c 11: SoundMAX Digital Audio (capture=0, playback=2) 15:24:44.266 sndtest.c Testing playback device Microsoft Sound Mapper - Output 15:24:44.266 sndtest.c Testing capture device Microsoft Sound Mapper - Input 15:24:44.469 sndtest.c Please wait while test is in progress (~11 secs).. 15:24:55.594 sndtest.c Dumping results: 15:24:55.594 sndtest.c Parameters: clock rate=48000Hz, 480 samples/frame 15:24:55.594 sndtest.c Playback stream report: 15:24:55.594 sndtest.c Duration: 9s.990 15:24:55.594 sndtest.c Frame interval: min=0.003ms, max=30.285ms 15:24:55.594 sndtest.c Jitter: min=9.996ms, avg=23.306ms, max=30.282ms 15:24:55.594 sndtest.c Capture stream report: 15:24:55.594 sndtest.c Duration: 10s.020 15:24:55.594 sndtest.c Frame interval: min=0.003ms, max=30.173ms 15:24:55.594 sndtest.c Jitter: min=9.996ms, avg=23.307ms, max=30.170ms 15:24:55.594 sndtest.c Checking for clock drifts: 15:24:55.594 sndtest.c Sound capture is 1440 samples faster than playback at the end of the test (average is 143 samples per second) 15:24:55.594 sndtest.c Test completed with some warnings
Last modified 17 years ago
Last modified on Feb 25, 2008 3:42:45 PM
