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Altera_Forum's avatar
Altera_Forum
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15 years ago

NIOSII for Sound Recording

Hi, I am an amateur to NIOSII and have very thin knowledge with this features. Hereby wish to have yours advise how can i start to develop a sound recording and play back system with NIOSI...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I would skip the mp3 part of the software since it's probably highly optimized but the general organization of the system should give you an idea of what to do. In a nutshell for what you are doing I think something like this will work:

ADC --> DMA --> RAM --> DMA --> FFT (and other streaming stuff...) --> DMA --> RAM --> whatever you are going to do with the data

This might be overkill but this is how I would keep Nios II out of the data movement path and use it just to control everything.