Release Notes

• Made minor UI adjustments.

• [PC Only] "Installation Mode (Sonic Biotope — Sound and Light Pond)" is now available. This interactive audiovisual feature analyzes the frequency bands (bass, mid, treble) of the ambient sounds or music you're currently playing in real-time, and the ecosystem dynamically changes based on the "climate of sound." Beyond simple visual reactions, enjoy a "mysterious ecosystem of sound and light" where ecological dramas involving predation and territorial disputes evolve continuously over time.

• Added 7 new premium sounds. Added 2 to the instrument pack (F, G), 2 to city sounds (E, F), 1 to extras (F), 1 to flowing water (F), and 1 to the beach (F). Existing premium subscribers can use them immediately.

• Added sound variations (B, C) to brown noise and white noise. You can switch between them using the A, B, C buttons next to the channel name. All variations are available for free.
• Improved the preset list UI. It's now clearer that you can apply presets by tapping the preset name and export by checking.

• Added sleep prevention feature. While playing or using a timer, your device screen won't automatically dim. You can toggle this on/off below the spatial audio settings (default: ON).
• Optimized tablet layouts. Fixed issues where playback buttons and sound lists would overflow on certain screen widths—they now stack neatly in a vertical layout.

• Bug fix: Fixed an issue where enabling spatial audio with certain high-fidelity devices (like USB DACs) caused noise or silence.

• PC browsers only: Added audio visualizer. The right column of the mixer panel now displays a real-time visualizer that responds to the playing sound. Switch between "bar" and "waveform" modes, and click to hide it if desired.
• Added first-visit guide. Ripple animations appear on the play button and rain slider to help guide your first interaction.

• Improved performance. Background effects (blur, particles) are now off by default for faster page loading.
• Added Rich Mode. Toggle it on/off with the ✦ button next to theme selection. When enabled, theme-specific background effects appear.
• Added firefly effect to forest theme. When Rich Mode is on, enjoy fireflies gently drifting through the forest.
• Improved the matching logic in "Connect with Someone's Sounds," increasing match rates.
• Improved the theme selection area layout.

• Added premium sounds. Instrument pack (7 types including Lo-fi piano), extras pack (6 types including footsteps, insects, and breeze), and additional variations for each channel.
• Added preview feature. Tap the lock icon on premium sounds to open a modal for previewing and purchasing.
• Improved "Connect with Someone's Sounds" sync. Now matches you with more similar mixes based on your purchased sound packs.
• Added "Terms of Use" (disclaimers and usage notes) to the About page.
• Adjusted audio balance for instrument channels.

• Added "Breathing Guide" mode. Supports 4-7-8 and 4-4-8 breathing techniques for guided relaxation. A progress bar shows remaining time for each phase.
• Added help modal for "Connect with Someone's Sounds". Click the "?" icon next to the button to learn about the feature and how to use it.
• Modals now fade in smoothly.
• Adjusted spatial audio reverb. Reduced unnecessary echo for more natural spatial sound.
• Fixed a bug where reverb remained even when master volume was set to zero.

• Added timer feature. Start or stop playback after a specified duration. Great for sleep timers or playing ambient sounds at set times.
• Added Pomodoro timer. Set work and break durations with automatic switching. Both intervals are customizable.
• Added wave sound variations.
• Improved spatial audio. Positional cues within the soundspace feel more natural.
• Added preset export feature. Save and restore your favorite mixes using share codes.

Rakuno'Oto was featured on "Imakorekini."
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"Connect with Someone's Sounds" sync feature has been added.
Share the same ambient sounds in real-time with someone listening around the world right now. Your thanks reach the person you're synced with. You won't know who they are, and like counts aren't displayed. But right now, you're connected by the same sounds—a modest interaction feature beyond dopamine and validation.

• Loop playback is now even more seamless.
• 1/f fluctuation intensity is now adjustable. Increase the intensity to hear subtle, slow breathing-like variations in the sound.

• Added 1/f fluctuation feature. Turn on the 1/f button to make the sound gently and naturally fluctuate.
• Added new sounds: Campfire and Beach.
• Improved white noise loop.

Rakuno'Oto was featured in the game media "Denfaminicogamer."
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