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

Timestamp:

Dec 6, 2006 1:07:34 PM (17 years ago)

Author:

bennylp

Comment:

--

audio-check-sound-device-jitter

@@ -25 +25 @@
 == Testing the Sound Device ==
 
+You 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.
+
+To run the {{{sndtest}}} application to test the default sound device:
+{{{
+ $ ./sndtest
+}}}
+
+The test will run for few seconds, and at the end it will display output similar to the snippet below:
+{{{
+ 13:06:18.652      sndtest.c Found 8 devices:
+ 13:06:18.672      sndtest.c  0: Primary Sound Capture Driver (capture=2, playback=0)
+ 13:06:18.682      sndtest.c  1: Crystal SoundFusion(tm) (capture=2, playback=0)
+ 13:06:18.692      sndtest.c  2: Primary Sound Driver (capture=0, playback=2)
+ 13:06:18.702      sndtest.c  3: Crystal SoundFusion(tm) (capture=0, playback=2)
+ 13:06:18.712      sndtest.c  4: Microsoft Sound Mapper - Input (capture=2, playback=0)
+ 13:06:18.722      sndtest.c  5: Crystal SoundFusion(tm) (capture=2, playback=0)
+ 13:06:18.732      sndtest.c  6: Microsoft Sound Mapper - Output (capture=0, playback=2)
+ 13:06:18.742      sndtest.c  7: Crystal SoundFusion(tm) (capture=0, playback=2)
+ 13:06:18.752      sndtest.c Testing Primary Sound Capture Driver
+ 13:06:19.002      sndtest.c  Please wait while test is in progress (~11 secs)..
+ 13:06:30.078      sndtest.c  Dumping results:
+ 13:06:30.088      sndtest.c   Parameters: clock rate=8000Hz, 80 samples/frame
+ 13:06:30.088      sndtest.c   Playback stream report:
+ 13:06:30.098      sndtest.c    Duration: 10s.120
+ 13:06:30.098      sndtest.c    Frame interval: min=0.006ms, max=32.475ms
+ 13:06:30.108      sndtest.c    Jitter: min=9.990ms, avg=23.530ms, max=32.467ms
+ 13:06:30.108      sndtest.c   Capture stream report:
+ 13:06:30.118      sndtest.c    Duration: 9s.990
+ 13:06:30.118      sndtest.c    Frame interval: min=0.006ms, max=32.480ms
+ 13:06:30.128      sndtest.c    Jitter: min=9.722ms, avg=23.706ms, max=32.472ms
+ 13:06:30.128      sndtest.c   Checking for clock drifts:
+ 13:06:30.138      sndtest.c    No clock drifts is detected
+ 13:06:30.138      sndtest.c  Test completed with some warnings
+}}}
+
+