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Choosing a DSP for audio processing

Started by Jackson4 June 1, 2008
>Could you explain what is special and what exactly are you planning to >accomplish? > >Besides, there is a lot of specialized programmable or semi-programmable
>solutions for the DSP PWM amplifiers from TI, NXP, FreeScale. Using a >general purpose DSP for that is an overkill; it is very cost
inefficient. I can't go into too much detail, but the output PWM can't be straight class D, we there are other requirements and an unusual load. There are also custom filters that the project needs, and other fairly simple, though unique, intermediary control/signal tailoring steps. I'll look more at these programmable PWM options, but they don't seem to allow enough algorithm flexibility.

Jackson4 wrote:


> I can't go into too much detail, but the output PWM can't be straight > class D, we there are other requirements and an unusual load. There are > also custom filters that the project needs, and other fairly simple, though > unique, intermediary control/signal tailoring steps.
We develop the special PWM amplifiers. If this is a business project, consider my services. The contact is at the web site below. Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com
"Jackson4" <p2@media.mit.edu> writes:

>> >>STA333 from STMicro. > > Thank you Vlad, this looks like a good chip, but we need something more > versatile, as some of the algorithms we're using are nonstandard. If it > were only that easy...
Would a small FPGA be any good? *Lots* of flexibility, and may be cheaper than you think... Cheers, Martin -- martin.j.thompson@trw.com TRW Conekt - Consultancy in Engineering, Knowledge and Technology http://www.conekt.net/electronics.html