Teensy 4.1 Audio USB out Not working

[donperryjm]

Works on the 3.5, doesn't on the 4.1

A2 is in the same pin location on 3.5 as is 4.1 right? That's what I am seeing.
So when I used this code on the 4.1 it doesn't give me any audio in my windows software,

#include <Audio.h>


// GUItool: begin automatically generated code
AudioInputAnalog         adc1x(A2);       //xy=120,232.00000381469727
AudioFilterBiquad        biquad1L; //xy=321,171
AudioAmplifier           amp1L; //xy=520.0000076293945,130.00000190734863
AudioAnalyzePeak         peakL; //xy=710,122
AudioOutputUSB           usb2; //xy=726.0000076293945,317.00000286102295
//AudioOutputAnalog        dac1;           //xy=821,245
AudioConnection          patchCord1(adc1x, biquad1L);
AudioConnection          patchCord2(biquad1L, amp1L);
AudioConnection          patchCord3(amp1L, peakL);
AudioConnection          patchCord4(amp1L, 0, usb2, 0);
AudioConnection          patchCord5(amp1L, 0, usb2, 1);
//AudioConnection          patchCord6(amp1L, dac1);
// GUItool: end automatically generated code


void setup() {
	// put your setup code here, to run once:

}

void loop() {
	// put your main code here, to run repeatedly:

}

 

[PaulStoffregen]

Sadly, AudioInputAnalog is very limited on Teensy 4.1.

At the very least, you'll need some other hardware input or output, since it does not yet have the ability to run the library update (same as the USB input & output).

Even then, the ADC input performance isn't as good as with Teensy 3.x.

 

[donperryjm]

Oh shucks.