On 08/18/2009 05:15 AM, Eric des Courtis wrote:
Matt,
Okay the good news is vmd should be able to handle these cases. The bad news is for whatever reason they are not getting detected at the moment.
vmd-not-panasonic-home-ans.wav is a sine at ~1400Hz you can change MAX_FREQ to 1450 and play with MIN_AMPL if that still doesn't help.
The following seem to use the same beep:
vmd-not-tmobile.wav is a sine at ~750Hz but has a bit of noise vmd-not-sprint.wav is a sine at ~750Hz but has a bit of noise vmd-not-sprint.wav is a sine at ~750Hz but has a bit of noise
You can try to play with these values:
POINTS 32 VALID 22 MAX_CHIRP 22
If that doesn't work let me know I will try to improve the algorithm to detect the providers.
There is no noise on those 3 beeps. In fact, for something that's been through ulaw/alaw compression those beeps are very clean. They are quite short, though. Steve