Hello Everyone,
I have two question here and I hope help me for answers:
1- If I want to buy Mic array to use it for Speech Recognition, What is the Mic array products now in market?
2- Why most of devices like Amazon Alexa and Google use MEMS Microphone Array ( Digital PDM Mic)?, other hand most of robots use electret Microphone Array not MEMS digital Microphone Array?
Many Thanks,
Digital PDM & electret Microphones
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abdullahkamel
- New User
- Posts: 3
- Joined: Wed Dec 28, 2016 1:09 am
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andrewxcav
Verified - Experienced Member
- Posts: 76
- Joined: Wed Feb 17, 2016 5:10 pm
1.
To get the bare essentials you can buy either the mic array board, which is essentially a USB audio device that you can add your own code to:
http://www.xmos.com/products/voice/microphones
For a more integrated solution there is the new Vocal Fusion kit:
http://www.xmos.com/products/voice/vocalfusion
2.
MEMS have a lot of nice features:
- low cost, and easy to surface mount
- relatively high SNR and bandwidth
- no need for additional ADC chips between mics and processor, this is especially attractive as the number of mics grows
To get the bare essentials you can buy either the mic array board, which is essentially a USB audio device that you can add your own code to:
http://www.xmos.com/products/voice/microphones
For a more integrated solution there is the new Vocal Fusion kit:
http://www.xmos.com/products/voice/vocalfusion
2.
MEMS have a lot of nice features:
- low cost, and easy to surface mount
- relatively high SNR and bandwidth
- no need for additional ADC chips between mics and processor, this is especially attractive as the number of mics grows