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Altera_Forum
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16 years ago

DE2 Audio Codec Programming

Hi, I am engg student.I are working on SOPC baesd speech to text conversion.I am confused with how to to program audio codec for Audio to Digital conversion for input from microphone and give it...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hello Mr. Khan, you could use one of the PLLs on the Cyclone II chip to convert from 50MHz to 24MHz. Or you could just implement a simple counter. You could just divide by 2 (giving 25MHz). This would result in a sampling rate slightly more than 48KHz, but depending on your application would probably not make an audible difference.