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78 lines
2.2 KiB
78 lines
2.2 KiB
/*
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* SDWavPlayer
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*
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* Created: Chip Audette, OpenAudio, Dec 2019
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* Based On: WaveFilePlayer from Paul Stoffregen, PJRC, Teensy
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*
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* Play back a WAV file
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*
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* This is the basic WAV file player, adapted from the Tympan library.
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* See also WAVFilePlayer and WAVFilePlayer2 Bob
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*
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* For access to WAV files, please visit https://www.pjrc.com/teensy/td_libs_AudioDataFiles.html.
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*
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*/
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#include "OpenAudio_ArduinoLibrary.h"
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#include "AudioSDPlayer_F32.h"
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//set the sample rate and block size
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const float sample_rate_Hz = 44100.0f;
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const int audio_block_samples = 128; // Must be 128 for SD recording.
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AudioSettings_F32 audio_settings(sample_rate_Hz, audio_block_samples);
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//create audio objects
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AudioSDPlayer_F32 audioSDPlayer(audio_settings);
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AudioOutputI2S_F32 audioOutput(audio_settings);
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//create audio connections
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AudioConnection_F32 patchCord1(audioSDPlayer, 0, audioOutput, 0);
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AudioConnection_F32 patchCord2(audioSDPlayer, 1, audioOutput, 1);
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AudioControlSGTL5000 sgtl5000_1;
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// Use these with the Teensy 4.x Rev D Audio Shield
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#define SDCARD_CS_PIN 10
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#define SDCARD_MOSI_PIN 11
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#define SDCARD_SCK_PIN 13
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void setup() {
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Serial.begin(300); delay(1000);
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Serial.println("### SDWavPlayer ###");
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Serial.print("Audio Sample Rate (Hz): ");
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Serial.println(audio_settings.sample_rate_Hz);
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Serial.print("Audio Block Size (samples): ");
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Serial.println(audio_settings.audio_block_samples);
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// Audio connections require memory to work.
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AudioMemory_F32(20, audio_settings);
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sgtl5000_1.enable();
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audioOutput.setGain(0.05); // Volume control
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SPI.setMOSI(SDCARD_MOSI_PIN);
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SPI.setSCK(SDCARD_SCK_PIN);
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if (!(SD.begin(SDCARD_CS_PIN))) {
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// stop here, but print a message repetitively
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while (1) {
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Serial.println("*** Unable to access the SD card ***");
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delay(1000);
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}
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}
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//prepare SD player
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audioSDPlayer.begin();
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//finish setup
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delay(1000); //stall a second
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Serial.println("Setup complete.");
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}
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void loop() {
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//service the audio player
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if (!audioSDPlayer.isPlaying())
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{ //wait until previous play is done
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//start playing audio
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Serial.println("Starting audio player: SDTEST1.WAV");
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audioSDPlayer.play("SDTEST1.WAV");
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}
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delay(500);
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}
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