wideband

Skype’s New SILK Wideband Codec Set Free

skype_logoThe release a couple of months back of the Skype v4.o client for Windows was noteworthy as the introduction of their in-house developed SILK codec. Earlier today during an eComm 2009 presentation Jonathan Christensen, Skype GM Audio & Video, announced that SILK was being released under a royalty free license.

SILK was notable as being capable of narrowband (8KHz), wide band (16KHz) and super-wideband (24KHz) sample rates. Skype claims the codec dynamically adapts both sample rate and bitrate in response to variable network quality. They have published a PDF with a very general overiew of codec performance expressed in terms of bitrates, CPU requirements and MOS scores.

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FWD’s Dan Berninger On HDVoice

GigaOm has a nice guest post by FWD's Dan Berninger. Dan describes the benefits of wideband voice encoding, as well as the obstacles to its more widespread acceptance. He rightly points to internet connected devices as being the only way…

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Initial Success With Eyebeam 1.5.19.4 Build 51814

counterpath1A short while ago I was informed that Counterpath had issued a new release of their Eyebeam soft phone for Windows. This release, v1.5.19.4 Build 51814 available from their support forum, was supposed to address the interoperability issues I encountered last fall when passing G.722 calls between Eyebeam and a Polycom hard phone.

I downloaded the program and took it with me on a business trip the following week. Upon initial installation I found that the program overwrote the version that I had been issued by ZipDX. I suppose this makes sense as both were in the v1.5 branch. However, the license key that ZipDX had provided would not enable the new release. I contacted Counterpath and they very quickly provided me a license key to enable the new release.

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Counterpath’s New Eyebeam Release

counterpath1Jason Fischl, CTO of long time-VoIP leader Counterpath, contacted me by email to advise that they have released a new version of Eyebeam for Windows that is supposed to address the G.722 interoperability issue reported last fall. The release is available in their support forums. Licensed users can update their installations now. I’ve downloaded the release and will be trying it out over the next couple of days.

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