Seed #8549 is one entry in the Calming Melodies pillar of Calm Sound Archive. It is generated in the browser with the Web Audio API, so nothing is streamed and nothing is downloaded: the same seed number always produces the same piece of audio.
What you are hearing
Karplus-Strong plucked strings: a short noise burst circulates through a delay line, producing a harp-like tone whose brightness is set by the damping factor.
The musical material uses D Dorian at 55 BPM, tuned to 741 Hz. A binaural offset of 5.7 Hz separates the left and right channels slightly, which is what gives the track its width on headphones.
When to use it
Use it in the background while working or reading, at a volume where you stop noticing it after a few minutes. This seed leans toward study & focus and runs at 55 BPM, so it moves slowly enough to sit under conversation or sleep.
Technical parameters
| Seed | #8549 |
|---|---|
| Pillar | Calming Melodies |
| Instrument | Kalimba |
| Layer | Sunday Morning Sun |
| Engine | Pastoral Celtic Harp |
| Scale | D Dorian |
| Tempo | 55 BPM |
| Tuning | 741 Hz |
| Binaural offset | 5.7 Hz |
| Filter ceiling | 2113 Hz |
How to listen
- Press play and choose a session length between five minutes and eight hours.
- Headphones give the binaural layer room to work; speakers still play the track but flatten the stereo image.
- Keep the volume where you can still hear the room. The fade-out at the end of a session is ten seconds, not a hard stop.