test mic functionality

By riosh5rioshtechcom , 7 March 2020

Hello,

Iam using ICS-43434 mic on my project, iam not getting desired output. So wanted to check mic functionality whether it works or not.
How can i test the mic working.

jijiang

6 years ago

Hi there,

That is something it would require an audio system setup to verify. There are a few ways to do this:

1) Have an embedded system with an I2S interface. You then connect the microphone to the I2S interface and to a record on the PCM data.

2) Have a USB to I2S bridge board. Connect the microphone to I2S, plug the board onto an USB port on a PC. Record sound to a PC.

The set up could be a little complicated, but it may be worth a try.

Kind regards,
Jin

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satyanaganlttscom

5 years 11 months ago

hi Jin Jiang,

greeting from LTTS team

i had understood the points replied above on testing ICS43434, but i require some clarity on the first point:

whether the data from the sensor is decimated as PCM data or i need to do some software code modification to get the PCM data?

if the sensor directly gives the PCM data, whether i can use that data for sensor validation?

Thank you,
Maniram

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