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Speech_codecs low power

Thomas Sauter
Prodigy 10 points
Other Parts Discussed in Thread: TMS320C5532

Hello.  I am looking for an ultra low power DSP to encode/decode Speech. (e.g. G722.2 (<16kbps) or G729).

I found the C55x_Speech_codecs for C55x DSPs. e.g.  the TMS320C5532.

The power consumption should be lower than 20mW in encoding situation.  Is this possible with this DSP or are there better ones?

Thanks in advance.

  • 0
    TI__Genius 12575 points

    Hi, 

    Suggest you to consider C5535 device. C5535  has more internal memory size which is 320KB as compared C5532 which has 64KB of internal memory.

    For power consumption - suggest you to refer the below C553x/15 power consumption wiki page. This wiki page also provides details on the typical power consumption for voice  encoder.

     Voice Encoder: 

    The Voice Encoder macro button reports the power consumed on voice encoder example running. PLL sets to 80 MHz and CPU runs at 40 MHz. One DMA controller is on and patches audio sample data from one active I2S port. CPU is utilized about 88% doing voice encoding. Audio sampling rate is 16 KHz. 

    Hope this information helps. 

    Regards

     Vasanth