Not send audio rawdata on `AudioRawData` interface if the SDK doesn’t detect a microphone or an audio device on the win 5.15sdk

[15107478682 (zbh)]

[chunsiong.zoom (Chun Siong (tag me for response))]

@15107478682 , one of the possible solution would be to use a virtual soundcard such as VB-Audio Cable or pulseaudio