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Visitor II
April 12, 2021
Question

WAV/MP3 player with STM32746G-Discovery.

  • April 12, 2021
  • 6 replies
  • 3277 views

Hello, I downloaded STM32CubeExpansion_Audio_V1.1.1 and I tested the MP3 player project (Audio_MP3_player) with an STM32746G-Discovery.

It works very well.

But now, I would like to add 2 or 3 additional functions but I have big gaps in development.

I would like to add a speed or pitch function (+/- 10%) and a reverse play function.

When playing a WAV or MP3 file, the audio file is buffered before being played.

I think it's in the fwkmempool.c file or player.c file to add these functions but I can't seem to.

If anyone can help me it would be welcome.

Thanks for your help.

Regards.

    This topic has been closed for replies.

    6 replies

    DB..1Author
    Visitor II
    July 20, 2021

    Nobody ?

    Graduate II
    July 20, 2021

    It's a forum, most people are occupied with their own projects and problems.

    DB..1Author
    Visitor II
    July 26, 2021

    Update: I found out how to play an MP3/Wave sound while changing the playback speed.

    Now I have to figure out how to play an MP3/Wave sound backwards.

    Visitor II
    August 19, 2021

    Can you share your project here?

    DB..1Author
    Visitor II
    August 19, 2021

    I'll send it to you later.

    Thank you.

    DB..1Author
    Visitor II
    August 19, 2021

    Here is the link to download my project written with keil for the STM32F7.

    In the meantime I have managed to get the music speed to work at +/- 100%.

    https://dedibout.fr/index.php/s/4ef22Rr43pATnpp

    Thanks for your help.

    Graduate
    February 25, 2025

    Hi

    Can you please reshare this project? It play music from USB Drive/SD card or transmited via USB from computer?