Hey,
I'm just getting started with Teensy and i've tried some very simple things, I created an oscillator(waveform->saw) but i can't control the volume of it, or at least i can't tell any difference when i change the values from the mixer or from the osc. Please find attached a picture of teensy. I have an audio output connected to the dac output and ground.

Any help or tips to get started to produce proper output will be great!
Note: i know about the audio shield, but i can't buy one in my country, it will take a while before arrives if i order it online.

Here is the code:

Code:
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>

// GUItool: begin automatically generated code
AudioSynthWaveform       waveform1;      //xy=251,461
AudioMixer4              mixer1;         //xy=468,472
AudioOutputAnalog        dac1;           //xy=642,496
AudioConnection          patchCord1(waveform1, 0, mixer1, 0);
AudioConnection          patchCord2(mixer1, dac1);
// GUItool: end automatically generated code




void setup() {
  // put your setup code here, to run once:
  AudioMemory(12);

}

void loop() {
  // put your main code here, to run repeatedly:
  waveform1.begin(WAVEFORM_SAWTOOTH);
  waveform1.amplitude(0.1);
  waveform1.frequency(440);
  mixer1.gain(0,0.5);
  
  //waveform1.amplitude(1);

}
Click image for larger version. 

Name:	IMAG0681.jpg 
Views:	105 
Size:	53.5 KB 
ID:	7940