Hi,
just asking: Besides, as Codec2 is a Multiband-Exitation-Codec, I'm
interested to know whether there can be even lower bandwiths achieved.
Of course, this may increase encoder and decoder complexity, but when
looking on ultra-narrowband - applilications, I only found a very few
competitors:
* TWELP (seems patent pending)
* MELPe (Thales has patent on the 600 bit/s version. all higher
bandwiths are partly patented by other companies, like TI,
Microsoft, etc. ... The Thales patent has been granted in 2005 - so
until 2030 it's out of reach...)
* Two propietary encoders from DSP Innovators inc. - working with 600
and 800 bit/s http://dspini.com/index.php?com=page&sec=products,
which are claimed patent-free and royality-free...
I just read a while ago that there has been a testing on packet/frame
loss... It resulted in two typed of bits... One called ''Wo_E'' or
somelike that that are about 800 somewhat bit/s ... I suggested to try
what happens if all bits except these are ''lost''/ignored... Has anyone
tried it, and if, what are the results???
Greetings,
Netzblockierer
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