Respeaker 2mic Hat vs Respeaker 4 mic array

Products & Technology ReSpeaker
2

Hi， We tested the 2 mic and 4 mics. I use my cellphone to play wakeup word “snowboy” repeatedly and record by audacity. the distance is around 1m.


  1. We use the raspberry 3.5mm audio port as output for both pi hats. we can hear the 4 mics has higher record volume. please make sure you turn the raspberry speaker volume to 100%.


  2. For 2 mic pi hat, Then we connect the speaker to 2 mic pi hat 3.5mm audio port. the volume is higher than the volume on the raspberry 3.5mm audio port.


  3. There is no big volume differences between 2 mics 3.5mm audio port volume and 4 mics raspberry 3.5mm audio port volume.



    thanks



    Seeed techsupport team

    Bill