Hello!
I want to build a simple wav player. I have 5 different audio clips and I want them to have seperate outputs iwth a button connected to each "channel" to make the audio play. I have 3 sets of Teensy 3.2 + audio shield to give each set 2 channels, except for one, but i wanted to start by just getting my files to paly. I started of by trying the different examples in the audio library (WavFilePlayer, PlayingMusic) but I couldn't get any of my files to play. They're all the right format, 44.1khz 16bit mono wav files. The frustrating part is that the files used in the examples are playing fine with the exact same setup. So what could be wrong? I don't know how to troubble shoot this since there's nothing going wrong with the example files. It seems to me like there still is something to be done with the files but I sent my code and the file to one of the developers (PaulStoffregen) and it worked just fine for him. Am I missing a step? I've red someting abut RAW files and translating it to "numeric" but haven't relly gasped what it's all about.
This really stresses me out since it need to be done until later this week for a art project and I have no idea what to do.
Code I'm using
Audio file and the hardware:
I want to build a simple wav player. I have 5 different audio clips and I want them to have seperate outputs iwth a button connected to each "channel" to make the audio play. I have 3 sets of Teensy 3.2 + audio shield to give each set 2 channels, except for one, but i wanted to start by just getting my files to paly. I started of by trying the different examples in the audio library (WavFilePlayer, PlayingMusic) but I couldn't get any of my files to play. They're all the right format, 44.1khz 16bit mono wav files. The frustrating part is that the files used in the examples are playing fine with the exact same setup. So what could be wrong? I don't know how to troubble shoot this since there's nothing going wrong with the example files. It seems to me like there still is something to be done with the files but I sent my code and the file to one of the developers (PaulStoffregen) and it worked just fine for him. Am I missing a step? I've red someting abut RAW files and translating it to "numeric" but haven't relly gasped what it's all about.
This really stresses me out since it need to be done until later this week for a art project and I have no idea what to do.
Code I'm using
PHP:
// Simple WAV file player example
//
// Three types of output may be used, by configuring the code below.
//
// 1: Digital I2S - Normally used with the audio shield:
// http://www.pjrc.com/store/teensy3_audio.html
//
// 2: Digital S/PDIF - Connect pin 22 to a S/PDIF transmitter
// https://www.oshpark.com/shared_projects/KcDBKHta
//
// 3: Analog DAC - Connect the DAC pin to an amplified speaker
// http://www.pjrc.com/teensy/gui/?info=AudioOutputAnalog
//
// To configure the output type, first uncomment one of the three
// output objects. If not using the audio shield, comment out
// the sgtl5000_1 lines in setup(), so it does not wait forever
// trying to configure the SGTL5000 codec chip.
//
// The SD card may connect to different pins, depending on the
// hardware you are using. Uncomment or configure the SD card
// pins to match your hardware.
//
// Data files to put on your SD card can be downloaded here:
// http://www.pjrc.com/teensy/td_libs_AudioDataFiles.html
//
// This example code is in the public domain.
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
AudioPlaySdWav playWav1;
// Use one of these 3 output types: Digital I2S, Digital S/PDIF, or Analog DAC
AudioOutputI2S audioOutput;
//AudioOutputSPDIF audioOutput;
//AudioOutputAnalog audioOutput;
AudioConnection patchCord1(playWav1, 0, audioOutput, 0);
AudioConnection patchCord2(playWav1, 1, audioOutput, 1);
AudioControlSGTL5000 sgtl5000_1;
// Use these with the audio adaptor board
#define SDCARD_CS_PIN 10
#define SDCARD_MOSI_PIN 7
#define SDCARD_SCK_PIN 14
// Use these for the SD+Wiz820 or other adaptors
//#define SDCARD_CS_PIN 4
//#define SDCARD_MOSI_PIN 11
//#define SDCARD_SCK_PIN 13
void setup() {
Serial.begin(9600);
// Audio connections require memory to work. For more
// detailed information, see the MemoryAndCpuUsage example
AudioMemory(8);
// Comment these out if not using the audio adaptor board.
// This may wait forever if the SDA & SCL pins lack
// pullup resistors
sgtl5000_1.enable();
sgtl5000_1.volume(0.5);
SPI.setMOSI(SDCARD_MOSI_PIN);
SPI.setSCK(SDCARD_SCK_PIN);
if (!(SD.begin(SDCARD_CS_PIN))) {
// stop here, but print a message repetitively
while (1) {
Serial.println("Unable to access the SD card");
delay(500);
}
}
}
void playFile(const char *filename)
{
Serial.print("Playing file: ");
Serial.println(filename);
// Start playing the file. This sketch continues to
// run while the file plays.
playWav1.play(filename);
// A brief delay for the library read WAV info
delay(5);
// Simply wait for the file to finish playing.
while (playWav1.isPlaying()) {
// uncomment these lines if you audio shield
// has the optional volume pot soldered
//float vol = analogRead(15);
//vol = vol / 1024;
// sgtl5000_1.volume(vol);
}
}
void loop() {
playFile("CROSSREF.WAV"); // filenames are always uppercase 8.3 format
delay(500);
/* playFile("SDTEST2.WAV");
delay(500);
playFile("SDTEST3.WAV");
delay(500);
playFile("SDTEST4.WAV");
delay(1500); */
}
Audio file and the hardware: