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
Soundbite Audio Performance
Started by ●October 1, 2011
Reply by ●October 2, 20112011-10-02
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
Reply by ●October 2, 20112011-10-02
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.comThank 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