Re:Voice Quality on Smart Phones Still Sucks (2014)
by rcthompson on Monday December 07, 2015 @02:11PM
(#10691835)
That doesn't really explain why smartphones (and cell phones in general) sound so much worse than landlines, does it?
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Re:Voice Quality on Smart Phones Still Sucks (2014)
by pak on Monday December 07, 2015 @02:16PM
(#10691880)
It's the combination of wireless packets dropping and the audio having to be degraded to 8bit/8kHz to pass between carriers that really brings on the terrible. It's kind of like TCP over TCP [1] -- works well enough a lot of the time, but when it fails, it fails badly because of how the two layers aren't really built for each other.
Re:Voice Quality on Smart Phones Still Sucks (2014)
by Aloha on Monday December 07, 2015 @02:36PM
(#10692047)
POTS lines do not carry more audio bandwidth than a cell phone. All of them are 64kbit PCM uncompressed audio.
Re:Voice Quality on Smart Phones Still Sucks (2014)
by rcthompson on Monday December 07, 2015 @02:23PM
(#10691931)
Ah, ok, that makes more sense.
Re:Voice Quality on Smart Phones Still Sucks (2014)
by Aloha on Monday December 07, 2015 @02:35PM
(#10692044)
Compression largely, EVRC and GSM (CDMA and GSM respectively) are pretty heavily compressed, while I prefer the sound of EVRC, both are compressed - another thing to point out is most smartphones are pretty lousy telephones, bad earpieces, poor microphones, and so on. If you want to see how cellular handset can perform, use a good communications grade handset.