Closed NDC-SC closed 1 month ago
Can this happen with other equipment?
Only found the problem with the M5Stack Core2
In order to reproduce the problem as soon as possible, you can provide the source code of the problem, you can send it to my email:Tinyu.Zhao@gmail.com
sketch emailed
Tinyu Zhao: has the reason for the M5Stack Core2 playing MP3 files slowly with M5Core2 0.1.4 or 0.1.5 libraries been determined ?
Hi @Tinyu-Zhao, @NDC-SC!
I have the same probelm on M5Stack Core2. I tried with 0.1.5 and 0.1.4 libraries, and with both I have the same error. After I tried with 0.1.3, it work good, the music is normal.
I use that code:
#include <M5Core2.h>
#include <driver/i2s.h>
#include "AudioFileSourceSD.h"
#include "AudioFileSourceID3.h"
#include "AudioGeneratorMP3.h"
#include "AudioOutputI2S.h"
AudioGeneratorMP3 *mp3;
AudioFileSourceSD *file;
AudioOutputI2S *out;
AudioFileSourceID3 *id3;
#define OUTPUT_GAIN 10
void setup()
{
M5.begin();
M5.Axp.SetSpkEnable(true);
file = new AudioFileSourceSD("/test.mp3");
id3 = new AudioFileSourceID3(file);
out = new AudioOutputI2S(0, 0);
out->SetPinout(12, 0, 2);
out->SetOutputModeMono(true);
out->SetGain((float)OUTPUT_GAIN/100.0);
mp3 = new AudioGeneratorMP3();
mp3->begin(id3, out);
}
void loop()
{
if (mp3->isRunning()) {
if (!mp3->loop()) mp3->stop();
} else {
delay(1000);
}
}
I can confirm that I faced the same issue with the M5Core2 libraries 0.14 and 0.15. It works fine with 0.13 The 0.14/0.15 do have slow mp3 playback (downsampled) no matter if the CPU frequency is changed OR output sampling rate is modified.
I am seeing the same issue with streaming also... I will try downgrading the library to 0.13. Yes, that worked. Playback speed back to normal.
Same issue with the M5Core2 last version library Works ok with 0.13
I use the same test code as provided by @peticsizmadia
Thanks, I too have 'downgraded' to 0.13, and will stay with that until I hear the issue is resiolved.
On Sat, 25 Mar 2023 at 01:08, NexusG17 @.***> wrote:
Same issue with the M5Core2 last version library Works ok with 0.13
I use the same test code as provided by @peticsizmadia https://github.com/peticsizmadia
— Reply to this email directly, view it on GitHub https://github.com/m5stack/M5Core2/issues/110#issuecomment-1483650930, or unsubscribe https://github.com/notifications/unsubscribe-auth/AKHUYXTIMUZSWXDEFLMVIP3W5ZAQ3ANCNFSM6AAAAAARJ7QL5Q . You are receiving this because you commented.Message ID: @.***>
Hey guys! In the case of newer versions, the speaker must be disabled and the problem will be solved immediately.
M5.begin(true, true, true, true, kMBusModeOutput, false); //begin(bool LCDEnable = true, bool SDEnable = true, bool SerialEnable = true, bool I2CEnable = false, mbus_mode_t mode = kMBusModeOutput, bool SpeakerEnable = true);
Brilliant. Thanks for resolving the "slow playback speed" problem.
Excellent, works a treat... many thanks. I can now use the latest version 0.1.6
When MP3 files are played with M5Core2 0.1.3 and the Audio libraries, the sound quality is fine. With the M5Core2 0.1.4 or 0.1.5 libraries, the MP3 files play with a "slow" speed. Instructions are
include
Audio audio; temp = filenames(filenumber]; // the filenumber MP3 file on the micro-SD card audio.connecttoFS(SD, temp.c_str()); // MP3 file on micro-SD card Is there a work around to resolve the playback speed problem ?