Home / ubuntu / Questions / 526673
In Process
Al Bundy
Asked: 2014-09-22 04:16:35 +0800 CST

Testing sound with different results

  • 772

I have mount surround sound in Ubuntu 14.04. When I am testing it with command:

speaker-test -Dplug:surround51 -c6 -l1 -twav

eveyting sounds fine but when I am using System Settings > Sound > Test Sound, the results differ. I got poor performance on right channels(right channels pause about every 0,5 sec). While listening to music I get this poor performance from the second test and I do not get why.

sound

1 Answers

  1. If I'm not wrong, speaker-test calls on ALSA directly for the test whereas Ubuntu uses PulseAudio to interface with ALSA. That's why you're hearing a difference.

    • 0