one of tracks is mute always (newbie)

[daniel_wu]

Hi,

i bought a microphone (respeaker mic array v2.0) last week
i had used the firmware which name is 6_channels_firmware.bin
then i want to do record test, but one of tracks is mute always and see below image.

https://imgur.com/a/2sOX1D2

thanks

[bill.yu]

Hi there~

The channel 5 is playback channel. if you plug the mic array v2.0 to PC and then you select mic array v2.0 as audio output device, you can see the data on channel 5. thanks.

Channel 0: processed audio for ASR
Channel 1: mic1 raw data
Channel 2: mic2 raw data
Channel 3: mic3 raw data
Channel 4: mic4 raw data
Channel 5: merged playback

[daniel_wu]

Yes, you are right!
thank you

Hi there~

The channel 5 is playback channel. if you plug the mic array v2.0 to PC and then you select mic array v2.0 as audio output device, you can see the data on channel 5. thanks.

Channel 0: processed audio for ASR
Channel 1: mic1 raw data
Channel 2: mic2 raw data
Channel 3: mic3 raw data
Channel 4: mic4 raw data
Channel 5: merged playback