I built an Android music player with AutoEQ-based headphone-to-headphone sound transformation — curious about your thoughts

Show & Tell

🎧 Core idea

Instead of just EQ presets, I tried something different:

1. Headphone correction (AutoEQ)

You pick your headphone/IEM from a database (~6000+ profiles), and it gets flattened to neutral.

2. Headphone → Headphone targeting

Then you can pick another headphone from the same database and apply its EQ curve as a target.

👉 So basically:
You can make one headphone approximate the tuning of another.

Example:

  • Turn a neutral set into something closer to Harman-style
  • Or experiment with different signatures without buying new gear

📊 Implementation details

  • Parametric EQ (frequency, gain, Q, filter types)
  • Preamp to avoid clipping
  • Real-time frequency response graph

🎵 Other stuff

  • Bit-perfect mode
  • Hi-res playback
  • Local library only (no streaming)

❓ What I’m curious about

  • How “convincing” do you think headphone-to-headphone EQ can realistically get?
  • Do you guys actually use AutoEQ regularly, or prefer manual tuning?
  • Any limitations you’ve noticed with FR-based corrections?

If anyone’s interested in trying it, I can share access — just let me know 👍

https://preview.redd.it/94mhcjcvc6tg1.png?width=750&format=png&auto=webp&s=4b6b831c0a9420f2a4ade2db3678ff030bb75d2f

https://preview.redd.it/x1rifdgwc6tg1.png?width=750&format=png&auto=webp&s=0c19f4fcfed49e16241a1de2c414086ce1865988

https://preview.redd.it/9oc9tpywc6tg1.png?width=750&format=png&auto=webp&s=42c74b74811702df2628590d160c8ddb35fbe14a

Posted Apr 4, 2026, 1:22 PM UTC

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