Changes between Version 1 and Version 2 of audio-check-sound-device-jitter


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Timestamp:
Dec 6, 2006 1:07:34 PM (14 years ago)
Author:
bennylp
Comment:

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  • audio-check-sound-device-jitter

    v1 v2  
    2525== Testing the Sound Device == 
    2626 
     27You can use '''{{{sndtest}}}''' sample to test the performance of the sound device/driver in your platform. The {{{sndtest}}} binary should be placed in {{{pjsip-apps/bin/samples}}} directory after the samples project is successfully built. 
     28 
     29To run the {{{sndtest}}} application to test the default sound device: 
     30{{{ 
     31 $ ./sndtest 
     32}}} 
     33 
     34The test will run for few seconds, and at the end it will display output similar to the snippet below: 
     35{{{ 
     36 13:06:18.652      sndtest.c Found 8 devices: 
     37 13:06:18.672      sndtest.c  0: Primary Sound Capture Driver (capture=2, playback=0) 
     38 13:06:18.682      sndtest.c  1: Crystal SoundFusion(tm) (capture=2, playback=0) 
     39 13:06:18.692      sndtest.c  2: Primary Sound Driver (capture=0, playback=2) 
     40 13:06:18.702      sndtest.c  3: Crystal SoundFusion(tm) (capture=0, playback=2) 
     41 13:06:18.712      sndtest.c  4: Microsoft Sound Mapper - Input (capture=2, playback=0) 
     42 13:06:18.722      sndtest.c  5: Crystal SoundFusion(tm) (capture=2, playback=0) 
     43 13:06:18.732      sndtest.c  6: Microsoft Sound Mapper - Output (capture=0, playback=2) 
     44 13:06:18.742      sndtest.c  7: Crystal SoundFusion(tm) (capture=0, playback=2) 
     45 13:06:18.752      sndtest.c Testing Primary Sound Capture Driver 
     46 13:06:19.002      sndtest.c  Please wait while test is in progress (~11 secs).. 
     47 13:06:30.078      sndtest.c  Dumping results: 
     48 13:06:30.088      sndtest.c   Parameters: clock rate=8000Hz, 80 samples/frame 
     49 13:06:30.088      sndtest.c   Playback stream report: 
     50 13:06:30.098      sndtest.c    Duration: 10s.120 
     51 13:06:30.098      sndtest.c    Frame interval: min=0.006ms, max=32.475ms 
     52 13:06:30.108      sndtest.c    Jitter: min=9.990ms, avg=23.530ms, max=32.467ms 
     53 13:06:30.108      sndtest.c   Capture stream report: 
     54 13:06:30.118      sndtest.c    Duration: 9s.990 
     55 13:06:30.118      sndtest.c    Frame interval: min=0.006ms, max=32.480ms 
     56 13:06:30.128      sndtest.c    Jitter: min=9.722ms, avg=23.706ms, max=32.472ms 
     57 13:06:30.128      sndtest.c   Checking for clock drifts: 
     58 13:06:30.138      sndtest.c    No clock drifts is detected 
     59 13:06:30.138      sndtest.c  Test completed with some warnings 
     60}}} 
     61 
     62