Freesound Forums

Hello All

This is a bit different - I want to use a cheap and easily available MP3 player as a waveform generator.

The idea being, I want to get waveform/pictures (may be Jpegs) of heart rhythms, convert them to MP3 files - looping them to make the "song" longer - say 3 or 5 minutes , then play them on a MP3 player, I can easily convert the headphone output of the MP3 player to an appropriate amplitude (voltage) for what I need.

In this scenario - ECG's rhythms are well within the audio spectrum and even slower - think the whole rhythm at 60 beats per minute.

Can anyone point me in the right direction on how to convert waveform/pictures to MP3 files - please make it easy - I'm not a programmers arm pit!!!

Many thanks.

Phil

Hey there

If you want to convert a picture to a sound file there are a couple of programs that do specifically this.

https://www.photosounder.com/download.php

https://www.skytopia.com/software/sonicphoto/

These programs convert the image into a spectrogram, mapping frequency over time according to the brightness of each pixel. The result can be a bit messy if you have a lot of pixels at different intensities.

Not sure if you can output an mp3 file but you can always convert a .wav to .mp3 really easily.

Let me know if i've misunderstood your question

Can use ECG type waveforms to modulate other sounds, (no pictures required),
see ... https://freesound.org/search/?q=Timbre+heart+ultrasound

A few years back I made some experiments on image to sound conversion, check this:
https://freesound.org/people/dobroide/sounds/49403

I'm new here, and some of this stuff is fascinating. I had never imagined sounds from an image - wow!
Thanks