HNY All!
The subject line says it all. We have been using Audio Quality 0, ALAW 8Khz but have been pretty disappointed with how it handles dropouts, compared to AQ setting #f 2, the LINEAR 16 Bit 8 Khz. All users and the station now have greatly improved internet connections, so we decided to improve audio quality and move to a different setting.
THE PROBLEM is while it works great WITHOUT the DUAL-RX on, as soon as we switch to having both receiver audio streams available in the headphones, the receive audio quality suffers, regardless of the Jitter Buffers and Jitter Delay settings. It introduces a 'crackling' component to the audio that is really noticable on CW, and especially when tuned to a fairly strong signal.
This is a competition station, so we don't want lots of T/R delay which is introduced with the increase in the jitter settings. All other settings have been tried and perfected over 2 full contest seasons of use. It's a full M/2 station, and we are experienceing the trouble on BOTH stations, so we have ruled out a single radio or remote rig hardware item as the source of the problem.
We have tried virtually everything, and cannot seem to find a setting that works, OTHER than going back to ALAW 8Khz...
The radios are fully loaded and updated K3's, K3/0 for the control side, late build RR boxes, latest firmware, very good and dedicated internet connection at the station (nobody firing up Face Time or NetFlix etc.)
Any clues to share would be greatly appreciated.
73 Kevin K7ZS
