I recently setup a node for a buddy of mine and we moved him
to the channelized irlp and echolink installation. He has recently received
poor audio reports from the IRLP side of his node and we did a A/B test one
night on his audio.
I found that his Asterisk audio is great, and is full of
audio (our two nodes connected via uLaw). leaving the volume on my HT, I disconnect
from him via AllStar and then connect up to him via IRLP. His audio on the
IRLP side is about 10% lower than his level when were chatting via AllStar and
also sounds muffled. Has anyone else noticed this? If so, is there a fix for
it?
I recently setup a node for a buddy of mine and we moved him to the channelized irlp and echolink installation. He has recently received poor audio reports from the IRLP side of his node and we did a A/B test one night on his audio.
I found that his Asterisk audio is great, and is full of audio (our two nodes connected via uLaw). leaving the volume on my HT, I disconnect from him via AllStar and then connect up to him via IRLP. His audio on the IRLP side is about 10% lower than his level when were chatting via AllStar and also sounds muffled. Has anyone else noticed this? If so, is there a fix for it?
<-- Hi Jim; I have also noticed this on my chan_irlp node (2304). I believe part (if not all) of the issue is due to the fact that app_rpt and irlp use different audio levels as the calibration standard (3.2kHz and 3.5kHz deviation respectively). Of course then there is the ADPCM to ulaw conversion...
I have previously discussed this with Jim (WB6NIL); I know that he'll come up with a fix!