SVOPC

SVOPC (Sinusoidal Voice Over Packet Coder) is a compression method for audio which is used by VOIP applications. It is a lossy speech compression codec designed specifically towards communication channels suffering from packet loss. It uses more bandwidth than best bandwidth-optimised codecs, but it is packet loss resistant instead.

Skype Limited developed a codec called 'SVOPC' for Skype. It was first used in Skype 3.2 beta 53, released on March 28, 2007.^[1]^[2]^[3]^[4] Starting with Skype 4.0, SVOPC is replaced by SILK.

^ Skype Community (2008-07-29) Current codec uses (Internet Archive)
^ Skype Journal (2007-03-28) Skype 3.2 Sets New Standard for Sound Quality archived original, Retrieved 2009-09-01
^ Lee S. Dryburgh (2008-02-06) Interview with Jonathan Christensen (Skype), eComm Media, Inc. Retrieved 2009-09-01
^ Michael Stanford (2009-01-13) Skype’s new super-wideband codec (SILK), Wirevolution, Retrieved 2009-09-01

[codec-uses-1] Skype Community (2008-07-29) Current codec uses (Internet Archive)

[2] Skype Journal (2007-03-28) Skype 3.2 Sets New Standard for Sound Quality archived original, Retrieved 2009-09-01

[christensen-skype-3] Lee S. Dryburgh (2008-02-06) Interview with Jonathan Christensen (Skype), eComm Media, Inc. Retrieved 2009-09-01

[wirevolution-4] Michael Stanford (2009-01-13) Skype’s new super-wideband codec (SILK), Wirevolution, Retrieved 2009-09-01

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