1. I seem to recall seeing a tonelist parameter that allowed tones to be set at levels other than 0, for instance !1000/[EMAIL PROTECTED] would generate 1 kHz for half a second at -20 dBm0. But this doesn't work and I can't find the original reference. Anyone?
2. In ztmonitor there is a bargraph for setting levels, and there's a patch available in bug 2783 to show numeric values for the levels on tx and rx paths. Has anyone calibrated these numbers to dBfs or dBm0? They look like a straight decimal conversion of the audio bitstream but how literal is this?
3. Levels from app_milliwatt and Playtones are different. app_milliwatt says it's generating a mu-law bitstream but I can't find the code that's actually doing this. What does Playtones use?
4. Is it possible to tweak the gains of the transcoding modules without patching the source? What about non-transcoded calls like straight a-law to a-law connections, for instance?
5. In various docs rxgain and txgain in zapata.conf are said to be in dB or percent or some arbitrary number. My C is very rusty, but in chan_zap.c the number seems to be converted to a linear gain number using a formula for voltage gain rather than power gain. Has anyone calibrated this?
Thanks
David Josephson
_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
