algorithm - Which audio codec G.722 or G.726 offer improved stability and lower delays? -

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i have choose between g.722 , g.726 audio codecs.

assume, that:

  • purpose use audio codec voip on sip calls
  • and not consider bandwidth of internet connection (it's high)

i need high audio quality, lower delays , higher stability.

which 1 of them provides better?

according wikipedia:

audio quality:

  • 722: 16 khz, 64 kb/s, 14 bits/sample
  • 726: 8 khz, <=40 kb/s, 13 bits/sample

latency:

  • 722: 4000 us
  • 726: 125 us

so depends on want more. 722 has better quality, @ higher latency. latency isn't bad, though, compared other formats. note 722 uses sub-band encoding, handy voip application. if you're encoding yourself, can tweak typical "voice" band use more bits others, , possibly reduce file size.

i'm not entirely sure mean "stability". voip i'd use low-bandwidth codec provide stability, state that's not issue.


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