Sound Device Tests

Table of Contents:

1. Hardware
2. Results
   1. Test Date: 25/02/2008:

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SoundMAX Integrated Digital Audio

Hardware

Name:	SoundMAX Integrated Digital Audio
System:	IBM ThinkPad T42 type/model 2373-4YU,Windows XP SP2, Pentium M 1.7GHz, 1GB RAM
Vendor:	Intel (0x8086)
Chipset:	RealTek (0x24C5)
Driver:	Analog Devices, 27/10/2003 ver 5.12.1.3624

Results

Test Date: 25/02/2008:

Software:

• PJMEDIA, PortAudio WMME, version 0.8-trunk date 25/02/2008, Debug version

Results:

	8 HKz	16 KHz	44.1KHz	48 KHz
Play jitter (min/avg/max)	9.975/23.044/30.228	9.966/23.398/40.095		9.743/23.257/36.347
Rec jitter (min/avg/max)	9.778/23.284/30.499	9.973/23.280/30.254		5.497/23.271/52.553
Drifts (samples/sec)	120	96		0

Test logs

@8KHz:

 11:10:38.728 os_core_win32. pjlib 0.8.0-trunk for win32 initialized
 11:10:38.938      pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2.
 11:10:38.938      pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2.
 11:10:39.169      pasound.c PortAudio sound library initialized, status=0
 11:10:39.169      pasound.c PortAudio host api count=3
 11:10:39.169      pasound.c Sound device count=8
 11:10:39.179          pjlib select() I/O Queue created (00A2637C)
 11:10:39.179      sndtest.c Found 8 devices:
 11:10:39.179      sndtest.c  0: Microsoft Sound Mapper - Input (capture=2, playback=0)
 11:10:39.179      sndtest.c  1: SoundMAX Digital Audio (capture=2, playback=0)
 11:10:39.179      sndtest.c  2: Microsoft Sound Mapper - Output (capture=0, playback=2)
 11:10:39.179      sndtest.c  3: SoundMAX Digital Audio (capture=0, playback=2)
 11:10:39.179      sndtest.c  4: Primary Sound Capture Driver (capture=2, playback=0)
 11:10:39.179      sndtest.c  5: SoundMAX Digital Audio (capture=2, playback=0)
 11:10:39.179      sndtest.c  6: Primary Sound Driver (capture=0, playback=2)
 11:10:39.179      sndtest.c  7: SoundMAX Digital Audio (capture=0, playback=2)
 11:10:39.249      sndtest.c Testing playback device Microsoft Sound Mapper - Output
 11:10:39.249      sndtest.c Testing capture device Microsoft Sound Mapper - Input
 11:10:39.459      sndtest.c  Please wait while test is in progress (~11 secs)..
 11:10:50.595      sndtest.c  Dumping results:
 11:10:50.595      sndtest.c   Parameters: clock rate=8000Hz, 80 samples/frame
 11:10:50.595      sndtest.c   Playback stream report:
 11:10:50.595      sndtest.c    Duration: 10s.140
 11:10:50.595      sndtest.c    Frame interval: min=0.013ms, max=30.243ms
 11:10:50.595      sndtest.c    Jitter: min=9.975ms, avg=23.044ms, max=30.228ms
 11:10:50.595      sndtest.c   Capture stream report:
 11:10:50.595      sndtest.c    Duration: 9s.990
 11:10:50.595      sndtest.c    Frame interval: min=0.012ms, max=30.513ms
 11:10:50.595      sndtest.c    Jitter: min=9.778ms, avg=23.284ms, max=30.499ms
 11:10:50.595      sndtest.c   Checking for clock drifts:
 11:10:50.595      sndtest.c    Sound capture is 1200 samples faster than playback at the end of the test (average is 120 samples per second)
 11:10:50.605      sndtest.c  Test completed with some warnings

@16KHz:

 11:12:31.530 os_core_win32. pjlib 0.8.0-trunk for win32 initialized
 11:12:32.191      pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2.
 11:12:32.191      pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2.
 11:12:33.123      pasound.c PortAudio sound library initialized, status=0
 11:12:33.123      pasound.c PortAudio host api count=3
 11:12:33.123      pasound.c Sound device count=8
 11:12:33.123          pjlib select() I/O Queue created (00A2637C)
 11:12:33.123      sndtest.c Found 8 devices:
 11:12:33.123      sndtest.c  0: Microsoft Sound Mapper - Input (capture=2, playback=0)
 11:12:33.123      sndtest.c  1: SoundMAX Digital Audio (capture=2, playback=0)
 11:12:33.123      sndtest.c  2: Microsoft Sound Mapper - Output (capture=0, playback=2)
 11:12:33.133      sndtest.c  3: SoundMAX Digital Audio (capture=0, playback=2)
 11:12:33.133      sndtest.c  4: Primary Sound Capture Driver (capture=2, playback=0)
 11:12:33.133      sndtest.c  5: SoundMAX Digital Audio (capture=2, playback=0)
 11:12:33.133      sndtest.c  6: Primary Sound Driver (capture=0, playback=2)
 11:12:33.133      sndtest.c  7: SoundMAX Digital Audio (capture=0, playback=2)
 11:12:33.203      sndtest.c Testing playback device Microsoft Sound Mapper - Output
 11:12:33.203      sndtest.c Testing capture device Microsoft Sound Mapper - Input
 11:12:33.403      sndtest.c  Please wait while test is in progress (~11 secs)..
 11:12:44.549      sndtest.c  Dumping results:
 11:12:44.549      sndtest.c   Parameters: clock rate=16000Hz, 160 samples/frame
 11:12:44.549      sndtest.c   Playback stream report:
 11:12:44.549      sndtest.c    Duration: 9s.930
 11:12:44.549      sndtest.c    Frame interval: min=0.016ms, max=40.112ms
 11:12:44.549      sndtest.c    Jitter: min=9.966ms, avg=23.398ms, max=40.095ms
 11:12:44.549      sndtest.c   Capture stream report:
 11:12:44.549      sndtest.c    Duration: 9s.990
 11:12:44.549      sndtest.c    Frame interval: min=0.013ms, max=30.270ms
 11:12:44.549      sndtest.c    Jitter: min=9.973ms, avg=23.280ms, max=30.254ms
 11:12:44.549      sndtest.c   Checking for clock drifts:
 11:12:44.549      sndtest.c    Sound capture is 960 samples faster than playback at the end of the test (average is 96 samples per second)
 11:12:44.549      sndtest.c  Test completed with some warnings

@48KHz:

 11:11:01.721 os_core_win32. pjlib 0.8.0-trunk for win32 initialized
 11:11:01.861      pasound.c PA message: Pa_GetDeviceInfo: Num input channels reported as 65535! Changed to 2.
 11:11:01.861      pasound.c PA message: Pa_GetDeviceInfo: Num output channels reported as 65535! Changed to 2.
 11:11:02.082      pasound.c PortAudio sound library initialized, status=0
 11:11:02.082      pasound.c PortAudio host api count=3
 11:11:02.082      pasound.c Sound device count=8
 11:11:02.082          pjlib select() I/O Queue created (00A2637C)
 11:11:02.082      sndtest.c Found 8 devices:
 11:11:02.082      sndtest.c  0: Microsoft Sound Mapper - Input (capture=2, playback=0)
 11:11:02.082      sndtest.c  1: SoundMAX Digital Audio (capture=2, playback=0)
 11:11:02.082      sndtest.c  2: Microsoft Sound Mapper - Output (capture=0, playback=2)
 11:11:02.082      sndtest.c  3: SoundMAX Digital Audio (capture=0, playback=2)
 11:11:02.082      sndtest.c  4: Primary Sound Capture Driver (capture=2, playback=0)
 11:11:02.082      sndtest.c  5: SoundMAX Digital Audio (capture=2, playback=0)
 11:11:02.082      sndtest.c  6: Primary Sound Driver (capture=0, playback=2)
 11:11:02.082      sndtest.c  7: SoundMAX Digital Audio (capture=0, playback=2)
 11:11:02.162      sndtest.c Testing playback device Microsoft Sound Mapper - Output
 11:11:02.162      sndtest.c Testing capture device Microsoft Sound Mapper - Input
 11:11:02.362      sndtest.c  Please wait while test is in progress (~11 secs)..
 11:11:13.498      sndtest.c  Dumping results:
 11:11:13.498      sndtest.c   Parameters: clock rate=48000Hz, 480 samples/frame
 11:11:13.498      sndtest.c   Playback stream report:
 11:11:13.498      sndtest.c    Duration: 9s.990
 11:11:13.498      sndtest.c    Frame interval: min=0.023ms, max=36.371ms
 11:11:13.498      sndtest.c    Jitter: min=9.743ms, avg=23.257ms, max=36.347ms
 11:11:13.498      sndtest.c   Capture stream report:
 11:11:13.498      sndtest.c    Duration: 9s.990
 11:11:13.498      sndtest.c    Frame interval: min=0.020ms, max=52.575ms
 11:11:13.498      sndtest.c    Jitter: min=5.497ms, avg=23.271ms, max=52.553ms
 11:11:13.498      sndtest.c   Checking for clock drifts:
 11:11:13.498      sndtest.c    No clock drifts is detected
 11:11:13.498      sndtest.c  Test completed with some warnings