Aaron: While we are all learning, I disagree from the posts that you have a packet loss problem. The W6YYY system has been having measurable packet loss problems (from zero to 40%) in bursts - the effect of ISP packet loss on dstar audio is not the garble you are hearing, but missed words, syllables - basically, a very choppy, jittery sound. Entire words will be missed, then the audio will appear fine. ISP packet loss does not seem to cause what I was hearing on the recording.
Your recorded audio indicates that the voice error correction in the voice coder is unable to correct all the errors. Usually this is an RF problem, but you specifically said it occurs during gateway and reflector operation. So my conclusion is to use tools that can determine error rates as opposed to packet loss. I cannot suggest tool for this. Also heard was the common 4-5 second period of garble, then recovery. This is usually an RF problem, not ISP. This phenomena is common to the design of the VHF and UHF repeater receivers - its is almost like a tight squelch problem. I thought this was just a digital characteristic, but then I listened to 1.2 GHz repeaters, and these users gracefully start distorting, recover, etc. when they are weak. No 4-5 second dropouts. Try this: Have a strong user access the repeater, then disconnect the receiver antenna line in the middle of the message. The repeater transmitter will transmit 4-5 seconds of garble, then drop out. If you disconnect it for only a second or two, then reconnect, the user will still be garbled for the same duration, then recover. The same thing will occur if another stronger user, or stronger interference (IX) covers the desired signal. So I am saying that some of the recordings were just weak RF, or IX issues; the others were different. Greg Forrest N6LDJ W6YYY/W6UUU Trustee 440.0375 +5MHz Voice (Oakland, CA) 444.0375 +5MHz Voice (Pleasanton "Garage", CA) 925-337-4444 [EMAIL PROTECTED]
