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@@ -121,6 +121,7 @@ Oct 19 06:11:32 nixos kernel: sunxi-mmc 1c10000.mmc: send stop command failed
 S3 has significant differences when compared with V3s.
 It has 4 audio inputs (3 mics, 1 line in), and 2 audio outputs (headphone and line out).
 Currently, only the microphone is working. I tried to get audio output working but didn't have any luck.
+PineCube MainBoard schematic says that the audio amplifier is connected in pin PB5 (PWM1) but in reality it is connected to PG6 (UART1_TX).
 Use `alsamixer` to ensure mic is active and unmuted.
 ```shell
 $ ffmpeg -f alsa -ar 22050 -i hw:0,0 -acodec mp3 -f flv rtmp://192.168.1.200/live/pinecube