Remorseless German boffins are patting themselves on the back after winning a prize for their efforts developing "MP3 for phone calls". The prize in question is one of the three 2011 Joseph von Fraunhofer awards, given annually to the top researchers across Germany's mighty Fraunhofer Institutes. One of the best known of these …
Now when can we have it on our current crop of phones?
Latency not the issue
It's not the latency, it is what happens when data goes missing. When you start compressing things and lose a small part of the data it results in big problems. If you've even opened a corrupted JPEG you'll know what I mean.
DAB is proof that slight errors in the signal result in a annoying garbled noise.
Currently you get a choppy audio which is better than clicks, pops and other annoyances.
Depends how small your chunks are
Bit like digital terrestrial TV. You drop out and your picture goes funny till the next new frame is sent. Making it shorter between frames makes it recover faster but increases the amount of data.
Current phone data is sent in encrypted packets anyway. Lose a bit of an encrypted file and you have nothing anyway.
Waste of time, surely Apple and/or Microsoft have patents on speech?
How much of that prize money...
...will have to be paid out in fines and legal fees for software patent violations...
circular patent trolling? I think not
as fraunhofer pretty much wrote the book on such codecs I doubt they will have to pay themselves much ;), but I suspect the other guys will have to pony up quite healthy sums to play with this.
What's wrong with the GSM codec? It's opensource, easy to compress and decompress, and uses around 8KB/s
Sisval cannot licence the sh1t out of it as they do with mp3...
I like the fact...
that the guy who was so unsatisfied with the speed of the existing codec is named Schnell! And Markus (Mark?), to boot!
I was thinking the same, heh.
I also brought to mind that scene of "Das Boot"... Schneller! Schneller!
I think there is an (probably) open codec that does this sort of thing...
Opus (http://opus-codec.org/) is reputed to be low latency, robust in the face of errors and does music. There is even an ITEF draft for it out right now...
Speex, from Xiph, who invented Ogg-Vorbis is another lossy codec, this time optimised for speech.
It uses 30 or 34 ms frames.
A little introduction to German
The word "Fraunhofer" means "somebody who does fairly trivial things, but advertises them as big inventions".
So it's only understandable that it's nothing that special. Just like MP3 wasn't anything special back then.
I'm with YAAC on this one. "...MP3 wasn't anything special back then"? Maybe. Maybe not. It solved a problem for a lot of people when dialup at 56K WAS something special.
That'll be why you invented it first then?
If you have a moment there are a whole bunch of complex time/space/complexity constrained problems we need advanced codecs for - the computer science community would be ever so grateful if you could solve all of them.
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