Forums

Soundbite Audio Performance

Started by tomcee October 1, 2011
Has anyone measured the audio performance of the Freescale Soundbite
audio board using simple pass through code?

I am interested primarily in THD, freq response, etc....at 16/24 bits,
44.1/etc fs.

Thank you ,
TomC

tomcee wrote:
> Has anyone measured the audio performance of the Freescale Soundbite > audio board using simple pass through code? > > I am interested primarily in THD, freq response, etc....at 16/24 bits, > 44.1/etc fs.
I haven't measured it. However the board uses AK4556 codec in standard connection without any other signal conditioning circuitry. If the layout is correct, it should perform to the datasheet. That is ~100dB SNR, ~80dB THD+N; typical for consumer audio class. Vladimir Vassilevsky DSP and Mixed Signal Design Consultant http://www.abvolt.com
On Oct 2, 10:36=A0am, Vladimir Vassilevsky <nos...@nowhere.com> wrote:
> tomcee wrote: > > Has anyone measured the audio performance of the Freescale Soundbite > > audio board using simple pass through code? > > > I am interested primarily in THD, freq response, etc....at 16/24 bits, > > 44.1/etc fs. > > I haven't measured it. However the board uses AK4556 codec in standard > connection without any other signal conditioning circuitry. If the > layout is correct, it should perform to the datasheet. That is ~100dB > SNR, ~80dB THD+N; typical for consumer audio class. > > Vladimir Vassilevsky > DSP and Mixed Signal Design Consultanthttp://www.abvolt.com
Thank you for the response. I am aware of the ideal performance of the circuitry on the board but was curious if anyone has measured actual performance. TomC