Checking if Speaker is Functioning Properly by Playing a WAV File

An easy way to check if speaker is functioning properly is by using pjsua to play a WAV file to the speaker, with these easy steps:

1. Find any WAV file with the following specification:
   • any clock rate
   • mono
   • 16bit, PCM sample
2. Run pjsua with the file:

     $ ./pjsua --play-file THEFILE.WAV
   

3. Check that the file is registered to the bridge:

   >>> cl
   Conference ports:
   Port #00[16KHz/10ms] Primary Sound Capture Driver  transmitting to:
   Port #01[16KHz/10ms]              d16.wav  transmitting to:
   

4. Play the file to the speaker:

   >>> cc 1 0
   Success
   

5. Done. You should hear the file played to the speaker.

If you couldn't hear the file played to the speaker, then there's probably something wrong with your speaker.