Lines and geometry
Signal — a radio mast under the stars
A mast on a hill at night, sending out a wave on every beat.
No sign-up, no credit card
On screen
What Signal shows
Signal shows the silhouette of a radio mast on a hill under a starry sky. Two or three antennas send out rings that widen into the night; where their waves cross, interference fringes appear.
Every beat sends out a new wave, and the only bright light is the small red beacon at the top of the mast. A poetic night-time world for ambient, electronic music, post-rock and indie.
At a glance
Signal at a glance
- Family
- Lines and geometry
- Energy
- calm
- Movement
- slow
- Best tempo
- 70 to 150 BPM
- Music
- ambient, electronic, post-rock, indie
- Plan
- Included in the free plan
- Computer
- Runs on any recent computer
Best for
Where it shines
Related worlds
In the same spirit
More worlds from the “Lines and geometry” family, and those with the same energy.
Frequently asked
Questions about Signal
What music does Signal suit best?
Signal is designed for ambient, electronic, post-rock, indie, ideally between 70 and 150 BPM. Halofloor picks it on its own when a song suits it, and you can also force it from the console.
Is Signal free?
Signal is part of Halofloor’s free plan, with no time limit and no credit card. Just open the console and start your music.
Is Signal a video?
Every frame of Signal is computed live by your computer from the song’s analysis: tempo, energy, build-ups and drops. It never repeats from one song to the next.
What kind of TV do I need?
Any TV with an HDMI input works, smart or not. The computer renders the visuals and the TV displays them, with no app to install.
Put Signal on your screen
Open the console, pick your music: Halofloor does the rest.
No sign-up, no credit card



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