Radio 10 Optiforge

Android MP3 player for Radio 10 (NL) with a built-in Optiforge 5-band multiband compressor/limiter DSP

Android MP3 player for Radio 10 (NL) with a built-in Optiforge 5-band multiband compressor + limiter running live on the stream. Listen to Radio 10 through a real mastering chain — tune the sound to your headphones, car, or speaker.

Kotlin · Jetpack Compose · no NDK · one APK

Latest: v1.0.1

Features

• Radio 10 — Talpa stream via StreamTheWorld, 128 kbps MP3, with automatic mirror failover: the primary URL is the load-balancing livestream-redirect endpoint, backed by concrete edge nodes; on a stream error the player advances to the next mirror and wraps around, so a dead node never stops audio.
• Optiforge DSP — android.media.audiofx.DynamicsProcessing (API 28+) attached to the player's audio session:
  • 5-band multiband compressor (crossovers 150 / 600 / 2500 / 7000 Hz)
  • output limiter + input gain
  • live spectrum analyser and per-band gain-reduction meters (Visualizer tap — needs mic permission; processing still works without it)
• Presets — save/load named presets. The active preset and all settings persist across app switches and restarts; Save updates the active preset in place, Save as new creates another.
• Background playback — foreground PlaybackService with a single stable audio session (so the DSP stays attached across reconnects), a notification with a Stop action, and a wake lock.
• Landscape + tablet — rotation handled in-place (no state loss).

Install

Grab the latest signed APK from the Releases page and sideload it (enable Install unknown apps for your browser/file manager). Minimum Android 10 (API 29).

Build

./gradlew assembleDebug        # debug APK
./gradlew assembleRelease \    # signed release (supply your own keystore)
  -PRELEASE_STORE_FILE=/path/to/keystore.jks \
  -PRELEASE_STORE_PASSWORD=... \
  -PRELEASE_KEY_ALIAS=... \
  -PRELEASE_KEY_PASSWORD=...

Toolchain: AGP 8.6.1 · Kotlin 1.9.24 · Gradle 8.9 · compileSdk 35 · minSdk 29 · targetSdk 34.

Credits

Optiforge DSP core reused from the Optiforge-Max multiband compressor app. Radio 10 is a Talpa Network station — this is an unofficial third-party client.