My story
Mathyas Voisin
A musician first. Sophrology came afterwards, because I wanted to understand what my music was actually doing to people.
What made me change course was not the music itself, but what it did to the people listening. Not the applause: breathing that slows, a tension that releases, an evening that becomes bearable again.
I ended up writing for that. Rather than tracks, states — a piece meant for falling asleep does not breathe like a piece meant to restore momentum. Intention comes before form.
The rest fits in one sentence: I like helping people. Halte Sonore is nothing more than a way of making what I know how to do useful. I promise no treatment and I replace no one.
The path
Age 4
The cello
I started the cello at four. The instrument came before everything else, and it never left.
Then
Studying psychology
I studied psychology. Without knowing it yet, that is where I acquired a taste for what happens inside someone when something loosens.
Next
The stage
I decided to make a living from music. I performed with Grand Corps Malade, Slimane, Gims and Amel Bent — stages all over France, and Zénith tours.
2024
Sophrology
I trained in sophrology. It did not change my music; it changed the way I build it: the pace of a breath, the time it takes for a release to settle.
2026
Halte Sonore
I launched Halte Sonore: original pieces tuned to 432 Hz and 444 Hz, recorded in high quality, to support people rather than distract them.
On video
The video only loads when you start it.
What others say
Featured on the GEWA blog
Instrument maker GEWA published a portrait of my work as a cellist on their blog.
Read the article on the GEWA blogHalte Sonore is not a substitute for medical care. It is a place to listen — make of it what you need.
Take a pause
Play an excerpt, without creating an account. The rest can wait.