The sounds and art of Kokonenne

Five noise sounds are original synthesis. Four nature recordings use Public Domain, CC0 or CC BY 4.0 sources. Three classical pieces are rendered from Public Domain MIDI supplied by the Mutopia Project using our own synthesized instrument. Gentle humming is a real voice recording by drotzruhn. Quiet piano is Daria Baiocchi performing Satie's Gymnopédie No. 1 on a Steinway model B.

Added recordings were converted to mono, filtered, level-adjusted and prepared for looping. Humming and leaves use CC BY 4.0. The acoustic piano recording, including Kokonenne's edited version, is provided under CC BY-SA 4.0. Audio license rights remain separate from app playback entitlements. No artist endorsement or specific sleep benefit is implied.

Original sources and licenses are linked below. The waves recording is from the shore of Lake Ontario. The classical pieces are Brahms Op.49 No.4, Schubert D498 and Bach BWV846.

The original illustrations were created for Kokonenne with OpenAI's image-generation tool. Text, prices and buttons are rendered by the app separately.

• white — Original Kokonenne production —
• pink — Original Kokonenne production —
• brown — Original Kokonenne production —
• shush — Original Kokonenne production —
• fan — Original Kokonenne production —
• rain — Public domain (PD-author / PDSounds) — ezwa Source
• waves — Public domain (PD-self, worldwide unconditional fallback) — Dsw4 Source
• stream — CC0 1.0 — Siddharth Patil / Ksd5 Source
• brahms — Public Domain (Mutopia score and MIDI) — Source
• schubert — Public Domain (Mutopia score and MIDI) — Source
• bach — Public Domain (Mutopia score and MIDI) — Source
• female humming.wav — CC BY 4.0 — drotzruhn Source License
  Edited by Kokonenne: mono conversion, filtering, level adjustment, loop preparation and Ogg encoding. No endorsement implied.
• leaves in the wind — CC BY 4.0 — Gravity Sound Source License
  Edited by Kokonenne: mono conversion, filtering, level adjustment, loop preparation and Ogg encoding. No endorsement implied.
• Satie Gymnopèdie n.1 — CC BY-SA 4.0 (including this edited recording) — Daria Baiocchi; composition by Erik Satie Source License
  Edited by Kokonenne: mono conversion, filtering, level adjustment, loop preparation and Ogg encoding. No endorsement implied.