Respeaker 2mic Hat vs Respeaker 4 mic array

Products & Technology ReSpeaker
4

Hi there~



My bad to miss the point.


  1. the 2 mics use the WM8960 and the 4 mics/6mics use the AC108. The gain of the WM8960 is bigger than AC108.
  2. the 2 mics pi hat uses SAO-3729-M-42-008 mic. The 4 mics pi hat uses SPU0414HR5H-SB mics. The 6 mics pi hat uses MSM321A3729H9CP mics. the mic sensitivity is also different.



    <LINK_TEXT text=“https://statics3.seeedstudio.com/images … 030037.pdf”>https://statics3.seeedstudio.com/images/opl/datasheet/312030037.pdf</LINK_TEXT>

    http://www.mouser.com/ds/2/218/SPU0414HR5H-SB-28439.pdf

    <LINK_TEXT text=“http://www.memsensing.com/webupfile/153 … .0-ENG.pdf”>http://www.memsensing.com/webupfile/1531103042534785279.0-ENG.pdf</LINK_TEXT>


  3. if you want to test the performance, you have to use the fix audio source for the sound, then use the audacity to see the amplitude differences.



    thanks.