Changes between Version 7 and Version 8 of MeasuringSoundLatency
- Timestamp:
- Jul 28, 2008 12:52:44 PM (16 years ago)
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MeasuringSoundLatency
v7 v8 17 17 * You MUST make sure that the loudspeaker level is set high enough so that the speaker output is fed-back to the microphone (i.e. we deliberately want to capture the audio echo) 18 18 * You need to have a reasonable quiet room to do this test. 19 20 == Note on the test result below ==21 22 For this article, I run the test on an Windows XP SP2 desktop machine with on-board !SoundMAX audio device. The test uses PJSIP version 0.9.0-trunk and default pjmedia settings. The default settings should provide reasonable value between latency and stability, and as explained in [wiki:FAQ#audio-latency FAQ on audio latency], you could always tweak the settings if you want shorter latency.23 19 24 20 == Measuring Sound Device Latency == … … 180 176 Please see the [wiki:FAQ#audio-latency FAQ on audio latency] on how to optimize latency. 181 177 178 == Note on the test result == 182 179 180 For this article, I run the test on an Windows XP SP2 desktop machine with on-board SoundMAX audio device. The test uses PJSIP version 0.9.0-trunk and default pjmedia settings. The default settings should provide reasonable trade-off between latency and stability, and as explained in [wiki:FAQ#audio-latency FAQ on audio latency], you could always tweak the settings if you want shorter latency. 181 182