Even if you did have a phone that could do it, you would have to design a completely different handset with high end audio components to hear any difference. Having said that, I can see an application for a hardware "phone" that has balanced line in and out connections, so you could use it for broadcast applications. This could replace all the hybrids you normally have in an audio control room, and allow for full-quality phone links if both sides support it. curriegrad2004 wrote:
Unless you want to spend loads of money on prototyping an VoIP IC that does 48KHz, then be my guest and build one
On Mon, Sep 26, 2011 at 9:32 AM, Steve Underwood <steveu@coppice.org> wrote:
On 06/30/2009 09:26 AM, Craig Askings wrote:
Are there any hardware phones that support 48 Khz Celt and automated/mass deployment?
Craig.
Most of the pure VoIP chipsets aren't capable of running at 48k samples/second, so off the shelf phone hardware platforms probably won't cut it. The phones with video capabilities might have 48k sample/second facilities.
2009/6/30 Jason White<jason@jasonjgw.net>:
Brian West<brian@freeswitch.org> wrote:
Everyone has this need for lower bandwidth calls... I tend to march the other way. 48kHz baby! (btw you can do 48kHz in the same bandwidth as a single ulaw call)
48khz Celt (celt@48000 in your codec preferences) sounds wonderful with FreeSWITCH. To test, run two FreeSWITCH instances, both with mod_portaudio. This also works well in 48khz conferences.
I wouldn't use G.729 even if it weren't encumbered by patents - it's G.711, G.722, G.722.1 and (my current favourite) Celt all the way.
Steve
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