It took some time to make recording to work but now i have different problem, the recorded sound is really bad. I am using Adafruit library and modified example (original didnt work).
I am using integrated microphone, switch to line in didnt work at all for me.
- UNO (china) r2 with shield
- IMG_20180309_221710.jpg (1.1 MiB) Viewed 10348 times
Am i saving the sound badly or is there something wrong with my setup? Thank you.
Code: Select all
#include <SPI.h>
#include <Adafruit_VS1053.h>
#include <SD.h>
// define the pins used
#define RESET 8 // VS1053 reset pin (output)
#define CS 6 // VS1053 chip select pin (output)
#define DCS 7 // VS1053 Data/command select pin (output)
#define CARDCS 9 // Card chip select pin
#define DREQ 2 // VS1053 Data request, ideally an Interrupt pin
Adafruit_VS1053_FilePlayer musicPlayer = Adafruit_VS1053_FilePlayer(RESET, CS, DCS, DREQ, CARDCS);
File recording; // the file we will save our recording to
#define RECBUFFSIZE 128 // 64 or 128 bytes.
uint8_t recording_buffer[RECBUFFSIZE];
void setup() {
Serial.begin(9600);
Serial.println("Adafruit VS1053 Ogg Recording Test");
// initialise the music player
if (!musicPlayer.begin()) {
Serial.println("VS1053 not found");
while (1); // don't do anything more
}
musicPlayer.sineTest(0x44, 500); // Make a tone to indicate VS1053 is working
if (!SD.begin(CARDCS)) {
Serial.println("SD failed, or not present");
while (1); // don't do anything more
}
Serial.println("SD OK!");
// Set volume for left, right channels. lower numbers == louder volume!
musicPlayer.setVolume(10,10);
printDirectory(SD.open("/"), 0);
}
uint8_t isRecording = false;
void loop() {
if (Serial.available()) {
char c = Serial.read();
if (c == 'R' && !isRecording) {
startRecording();
}
if (c == 'S' && isRecording) {
stopRecording();
}
if (c == 'P') {
musicPlayer.reset();
musicPlayer.setVolume(10,10);
Serial.println("Playing");
musicPlayer.playFullFile("RECORD00.OGG");
}
}
if (isRecording) {
saveRecordedData(isRecording);
}
}
void startRecording() {
Serial.println("Begin recording");
isRecording = true;
musicPlayer.reset();
musicPlayer.setVolume(10,10);
// load plugin from SD card! We'll use mono 44.1KHz, high quality
if (!musicPlayer.prepareRecordOgg((char *)"v44k1q05.img")) {
Serial.println("Couldn't load plugin!");
while (1);
}
// Check if the file exists already
char filename[15];
strcpy(filename, "RECORD00.OGG");
SD.remove(filename);
Serial.print("Recording to ");
Serial.println(filename);
recording = SD.open(filename, FILE_WRITE);
if (!recording) {
Serial.println("Couldn't open file to record!");
while (1);
}
musicPlayer.startRecordOgg(true); // use microphone (for linein, pass in 'false')
}
void stopRecording() {
Serial.println("End recording");
musicPlayer.stopRecordOgg();
isRecording = false;
saveRecordedData(isRecording);
recording.close();
delay(1000);
}
uint16_t written;
uint16_t wordswaiting;
uint16_t addr;
uint16_t t;
uint16_t x;
uint16_t saveRecordedData(boolean isrecord) {
written = 0;
// read how many words are waiting for us
wordswaiting = musicPlayer.recordedWordsWaiting();
// try to process 256 words (512 bytes) at a time, for best speed
while (wordswaiting > 256) {
//Serial.print("Waiting: "); Serial.println(wordswaiting);
// for example 128 bytes x 4 loops = 512 bytes
for (int x=0; x < 512/RECBUFFSIZE; x++) {
// fill the buffer!
for (addr=0; addr < RECBUFFSIZE; addr+=2) {
t = musicPlayer.recordedReadWord();
//Serial.println(t, HEX);
recording_buffer[addr] = t >> 8;
recording_buffer[addr+1] = t;
}
if (!recording.write(recording_buffer, RECBUFFSIZE)) {
Serial.print("Couldn't write "); Serial.println(RECBUFFSIZE);
while (1);
}
}
// flush 512 bytes at a time
recording.flush();
written += 256;
wordswaiting -= 256;
}
wordswaiting = musicPlayer.recordedWordsWaiting();
if (!isrecord) {
Serial.print(wordswaiting); Serial.println(" remaining");
// wrapping up the recording!
addr = 0;
for (x = 0; x < wordswaiting-1; x++) {
// fill the buffer!
t = musicPlayer.recordedReadWord();
recording_buffer[addr] = t >> 8;
recording_buffer[addr+1] = t;
if (addr > RECBUFFSIZE) {
if (!recording.write(recording_buffer, RECBUFFSIZE)) {
Serial.println("Couldn't write!");
while (1);
}
recording.flush();
addr = 0;
}
}
if (addr != 0) {
if (!recording.write(recording_buffer, addr)) {
Serial.println("Couldn't write!"); while (1);
}
written += addr;
}
musicPlayer.sciRead(VS1053_SCI_AICTRL3);
if (!(musicPlayer.sciRead(VS1053_SCI_AICTRL3) & _BV(2))) {
recording.write(musicPlayer.recordedReadWord() & 0xFF);
written++;
}
recording.flush();
}
return written;
}
/// File listing helper
void printDirectory(File dir, int numTabs) {
while(true) {
File entry = dir.openNextFile();
if (!entry) {
// no more files
//Serial.println("**nomorefiles**");
break;
}
for (uint8_t i=0; i<numTabs; i++) {
Serial.print('\t');
}
Serial.print(entry.name());
if (entry.isDirectory()) {
Serial.println("/");
printDirectory(entry, numTabs+1);
} else {
// files have sizes, directories do not
Serial.print("\t\t");
Serial.println(entry.size(), DEC);
}
entry.close();
}
}
