Mp3 stream to I2S Stutter, pauses, noises etc. #510
Description
Hello!
I have played a bit with the provided example (streams-url_mp3-i2s.ino) but the audio output suffer from stutters, noises, pauses etc.. randomly: it may play perfectly for 1 or 2 minutes, then started to make some noise or stops for a second...restart to play ok for 30" then noise ...etc.
No warning seen on serial output
AudioLogger::instance().begin(Serial, AudioLogger::Warning);
changed also buffer size without any effect on the issue
URLStream url("xxx","xxxxxx",4048);
also changed the source stream
url.begin("http://direct.fipradio.fr/live/fip-midfi.mp3","audio/mp3");
Also changed some different power sources (USB powerbank, PC USB..).
Any hint?
May be it is some chip issues (ESP32 or I2S MAX98357A)?
Below the full code.
Thanks!
`/**
* @file streams-url_mp3-i2s.ino
* @author Phil Schatzmann
* @brief decode MP3 stream from url and output it on I2S
* @version 0.1
* @date 2021-96-25
*
* @copyright Copyright (c) 2021
*/
// install https://github.com/pschatzmann/arduino-libhelix.git
#include "AudioTools.h"
#include "AudioCodecs/CodecMP3Helix.h"
URLStream url("xxx","xxxxx",4048);
I2SStream i2s; // final output of decoded stream
EncodedAudioStream dec(&i2s, new MP3DecoderHelix()); // Decoding stream
StreamCopy copier(dec, url); // copy url to decoder
void setup(){
Serial.begin(115200);
AudioLogger::instance().begin(Serial, AudioLogger::Warning);
// setup i2s
auto config = i2s.defaultConfig(TX_MODE);
// you could define e.g your pins and change other settings
config.pin_ws=13;
config.pin_bck=12;
config.pin_data=15;
LogarithmicVolumeControl lvc(0.5);
//config.mode = I2S_STD_FORMAT;
i2s.begin(config);
// setup I2S based on sampling rate provided by decoder
dec.setNotifyAudioChange(i2s);
dec.begin();
// mp3 radio
url.begin("http://stream.srg-ssr.ch/m/rsj/mp3_128","audio/mp3");
//url.begin("http://direct.fipradio.fr/live/fip-midfi.mp3","audio/mp3");
}
void loop(){
copier.copy();
}`