Audio quality issues
TylerSD:
Been checking since, and it does not appear that my Mac is in the middle of a back-up when I encounter audio issues, so I don't think that's it.
I believe the issue tends to be at the beginning of the call...
Anyone have any other suggestions please?
SteveInWA:
Despite your previous internet quality test, it's possible that your connection is intermittently bad. Who is your internet service provider?
If there is some repeatable pattern to this, such as calls to/from a particular phone number or location, that might help.
Which internet telephone service provider are you using? You mentioned the Google Voice firmware issue, but you didn't specifically say if these calls are over Google Voice (technically, Google Chat)?
On some GV calls, GV will (re)negotiate the CODECs being used between carriers, during the first few seconds of the call. In those cases, it's possible to hear degraded sound.
TylerSD:
Thanks, Steve.
Yes, it's a Google Voice number.
ISP is AT&T Uverse. I had some internet issues when I moved in (mostly interference with wifi), but things have been fairly stable the past 3-6 months. Plus, I don't think wifi interference would impact this, since Obi is connected directly into router. In any case, my wifi is usually connected at 5 ghz.
If it's the issue of CODECs that you mentioned, is there a way to improve this?
SteveInWA:
No, CODEC negotiation is something that happens between the various intermediate telephone or "transit" carriers involved in each call, and it isn't something that end users can influence.
If you do have a crappy quality call, log into your Google Voice account on your desktop web browser, find the call in your History tab, and flag it for poor quality. Google performs statistical analysis on these user reports to identify problems with its transit carriers.
I still suggest running the Visualware VoIP quality test right after calls that have the issue, to try to determine if your ISP connection is the issue. Be sure to select the G.711 CODEC in that test, and pick several different endpoints to simulate a connection.
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