espressif
Question regarding to vad_process (AIS-1679)
Hello,
I understand that this function is used to detect speech in received audio. But when it returns VAD_SPEECH, does it means the current frame (the data input for the current call to this function) contain speech? or it means current frame along with a number of previous frames contains speech?
I'd like to record speech only. So, want to make sure when vad_process returns VAD_SPEECH, it is the right time to start the recording, and will not miss any speech audio.
Your understanding is correct, but you need to pay attention to the performance of VAD. It cannot be 100% accurate. You should consider the status of previous frames to determine whether certain frames need to be ignored.
