You should search instead compression algorithms commonly used for audio signals. There are many algorithms and papers about it if you google'd a little (I ported some lossy and lossless compression algorithms for the MicaZ for my MsC thesis, there's plenty of bibliography).
Off the top of my head: http://sites.google.com/site/cmsadler/sensys06_compress.pdf?attredirects=0 You have to do your homework :) --Antonio. On Mon, 2012-02-13 at 17:41 +0100, Sergio Valcarcel wrote: > Nope sorry. I have no idea about audio compression beyond the basics, > and I have never implemented it. > > > Neither do I know anything about the IIP. However if IIP is an > instruction set, it will be processor dependent, so it may be the case > that many architectures and cores that are ported to Tiny OS do not > offer it. Check it out! > > > Cheers! > Sergio > > On Mon, Feb 13, 2012 at 5:35 PM, Mashal al-shboul > <shboul8...@yahoo.com> wrote: > Hi Sergio, > Thank you for the reply. > Actually i am interested in compressing audio samples in C > since it is supported in tinyOS and nesC, so i would be > grateful to you if you tell about such techniques to compress > data locally in a sensor node before transmission. Have you > heard about Intel IIP for that ?! > > > > > > ______________________________________________________________ > From: Sergio Valcarcel <serteck...@gmail.com> > To: Mashal al-shboul <shboul8...@yahoo.com> > Cc: "tinyos-help@millennium.berkeley.edu" > <tinyos-help@millennium.berkeley.edu> > Sent: Monday, February 13, 2012 7:43 AM > Subject: Re: [Tinyos-help] Need for help > > > Hi, > > > no idea at all. > > > Probably you are interested in developing using the > programming model of Tiny OS. > On one hand that would be great in order to have available > more signal processing components (like audio compression). > But on the other hand I found that it takes quite a lot of > time at the beginning and it is also difficult to debug. > > > Otherwise, what I did for signal processing is to use standard > C functions. Check the mailing list if you are interested in > know how to link them. > > > Cheers! > Sergio > > > > > On Mon, Feb 13, 2012 at 8:50 AM, Mashal al-shboul > <shboul8...@yahoo.com> wrote: > Hi All, > > > I need a help in data compression in tinyOS and nesC. > has anyone of you tried compression (especially for > audio format) ?. do you know anything about using > Intel Integrated Performance Primitives (IIP ) for > compression ? > > > any help is good for me, thanks in advance > > > Regards, > Mash'al > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@millennium.berkeley.edu > > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > > > > > > > > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@millennium.berkeley.edu > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
