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A question for audio codec please

Jacky Chen29
Genius 4735 points

As my understanding on audio codec, this part will connect to a DSP through I2S or SPI and play out the audio source from DSP,

through I2S/SPI interface to audio codec and then SPK. So the audio source file should be store in the memory parts at DSP side, right?

But my customer spec shown me they need to store the audio file in audio codec side, then DSP control the audio codec through SPI to

play the audio out from audio side memory, is it make sense?

  • 0
    TI__Guru* 84915 points
    Hi, Jacky,

    The audio codecs cannot store the audio source file. They don't have memory for this kind of applications.

    The codecs are controlled via I2C (several codecs can use SPI protocol). Then, they can be used for record or playback applications. However, it doesn't mean that the codec will store the audio. It means that it will encode/decode the audio to/from the different audio protocols (I2S, Left-justified, Right-justified, DSP). So, the host processor must be capable to work with this protocols to use a codec.

    Best regards,
    Luis Fernando Rodríguez S.
  • 0 in reply to Luis Fernando Rodriguez S.
    Genius 4735 points
    Hola Luis,
    Thank you very so much.