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Voice active detection of Speex encoding on STM32F4.

Question asked by nguyen.nhan.002 on Jun 18, 2014
Latest reply on Sep 11, 2014 by nguyen.nhan.002
Hi all,

I develop the SPEEX encoding on STM32F4 follow the application note : "Vocoder demonstration using a Speex audio codec
on STM32F101xx and STM32F103xx microcontrollers" and it's ok. I can play realtime with Speex encoding and decoding. Look at Speex, it have the opption: VOICE ACTIVE DETECTION and it always go with VBR (variable bitrate operation) opption. Now, my task is detect voice and i think about SPEEX. Have anyone know the value or flag that show the input stream is Voice or noise...
Thanks in advance.

PS: I see the name of author of application note is Joys. If he can read it, please help me.