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Audio compression optimized for psychoacoustics, I figure. I doubt you'd be able to plug a dial-up modem into skype and achieve a working computer connection.
by thanatropism 10y ago
Audio compression optimized for psychoacoustics, I figure.
I doubt you'd be able to plug a dial-up modem into skype and achieve a working computer connection. Pure tones (as from key presses) is a less extreme case, but it's a conceivable problem.
- vetinari 10y agoTo add to your point: Skype uses SILK codec, on which OPUS, the currently preferred codec for internet-audio, was based.
- gcp 10y agoIf you do an outbound call (i.e. outside Skype, to something that would actually use DTMF) Skype doesn't use SILK/Opus on the outbound connection. You can tell because the quality is way worse. There are also issues with the echo cancellation Skype uses. If you have issues with DTMF, that's the likely cause, not the audio codec.
- orbitingpluto 10y agoBut echo cancellation should not be a problem on mobile devices.