I would love to hear feedback from the HN community. And a shoutout to Hacker News for providing this platform.

Hi HN,

I’m the developer behind this. I built this app because I was frustrated with the current state of meditation/ambient noise apps. Most of them seem to rely on synthesized MIDI tones that sound artificial, or they lock basic features behind monthly subscriptions and aggressive data tracking.

I wanted something that felt organic and respected the user, so I built a mixer based on actual high-definition recordings of crystal bowls rather than generated frequencies.

What it does: It’s a dedicated mixer for Solfeggio frequencies. You can play up to 10 tracks simultaneously. Each track corresponds to a specific frequency (recoded from a real bowl) and has its own volume slider. You can layer them to create your own soundscape and save up to 10 presets.

Some technical notes:

Audio: The core challenge was getting high-fidelity recordings of crystal bowls to loop seamlessly without audible clicks or "breathing" artifacts, as organic resonance is harder to loop than synthesized waves.

Privacy: The app is completely offline-first. There are no analytics, no tracking pixels, and no user accounts.

Cost: It is free and ad-free.

I’d love to hear your feedback on the audio engine performance, specifically if you notice any latency when mixing multiple heavy audio files at once.

Thanks for checking it out!