I run Asterisk 188.8.131.52 on Centos 5.5 under Vmware ESXi 4.1.
The kernel is: 2.6.18-92.1.22.el5vm and it’s booted off with these options: notsc divider=10 nolapic_timer clocksource=pit
Overall Asterisk runs very well but there is one annoying part that I can’t get rid of.
Audio files do a small crackling/blubber when they get interrupted by a DTMF tone. For example, if the audio file says:
“Press 1 for sales”, if I press 1 in the middle of the audio, I will hear: “Press …”<crackling/garble> which lasts maybe not even 1/2 a second. Almost as if it tried to stop the audio but couldn’t do it in time.
The audio files are in wav format and dtmfmode is inband.
What could be causing that small crackling at the end of the audio ?