Audio Library Hardware

Hardware tested with Teensy

Teensy	Hardware	Input	Output	Channels
LC, 3.x, 4.x	PT8211, TM8211(clone?),TDA1543A		PT8211	2 out
LC, 3.x, 4.x	TDA1543		I2S	2 out
3.x, 4.x	SGTL-5000 (Audio Board)	I2S	I2S	2 in, 2 out	max two shields
LC	SGTL-5000 (Audio Board)	I2Sslave	I2Sslave	2 in, 2 out
LC, 3.x, 4.x	PCM1502		I2S	2 out
LC, 3.x, 4.x	PCM1802, PCM1808	I2S		2 in
3.x, 4x.	AK4558	I2S	I2S
3.x, 4.x	WM8731, WM8731m	I2S	I2S
3.x, 4.x	CS42448	TDM	TDM	6 in, 8 out
3.x, 4.x	TLV320AIC3110	I2S	I2s	2 in, 2 out
3.x, 4.x	UDA1334A		I2S	2 out
	other:
3.x, 4.x			S/PDIF	2 out
4.x		S/PDIF		2 in
3.x	Inbuilt DAC			2 out
3.x, 4.x	Inbuilt ADC			2 in

Some interfaces exist twice. I.e. you can connect 2pcs PT8211 on Teensy 4.x

See https://www.pjrc.com/teensy/gui/