Seed #3013 is one entry in the Nature & Fire 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
Pink noise filtered with a slow LFO on the cutoff, so the wash rises and falls like surf.
The musical material uses Japanese Hirajoshi at 73 BPM, tuned to 852 Hz. A binaural offset of 8 Hz separates the left and right channels slightly, which is what gives the track its width on headphones.
When to use it
Use it as background for reading, cooking, or falling asleep. The layers are steady enough to ignore. This seed leans toward stress relief and runs at 73 BPM, so it moves slowly enough to sit under conversation or sleep.
Technical parameters
| Seed | #3013 |
|---|---|
| Pillar | Nature & Fire |
| Instrument | Shakuhachi Flute |
| Layer | Rolling Ocean Surf |
| Engine | Tidal Ocean Waves LFO |
| Scale | Japanese Hirajoshi |
| Tempo | 73 BPM |
| Tuning | 852 Hz |
| Binaural offset | 8 Hz |
| Filter ceiling | 624 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.
How this seed differs
Seeds in the Nature & Fire pillar share an engine family, but the parameters are not interchangeable. Here the filter ceiling sits at 624 Hz and the binaural offset at 8 Hz. For comparison, seed #3012 cuts at 366 Hz, this one at 624 Hz; seed #3014 runs at 62 BPM, slower than the 73 BPM here.
The tuning is 852 Hz, which shifts the whole scale away from the more common 432 Hz reference. At 73 BPM the phrase repeats roughly every 3.3 seconds, so the loop is long enough that it does not feel like a short sample on repeat.
When this one works best
Cooking, reading, or covering street noise. These seeds are steady by design, so they do not pull attention away from what you are doing.
The mood tag for this seed is Stress Relief. Treat it as a starting point rather than a rule: the same track can sit under a work session at low volume and under sleep at an even lower one.
Questions about #3013
Does this seed download any audio?
No. The track is synthesised in the browser when you press play. Nothing is streamed, and there is no MP3 file behind it, which is why the same seed number always sounds the same on any device.
Can I leave it running for eight hours?
Yes. The timer goes up to eight hours and fades out over the last ten seconds instead of cutting abruptly. If you only need a short reset, the five-minute default is already selected.
Why does it sound different from the neighbouring seeds?
Because the engine reads the seed number to set the filter, the tuning, the tempo and the stereo offset. Small changes in those values change the texture more than a change of instrument would.