🎻 About Violin Ear Training (v1.6)
Designed for precision acoustic tracking and violin intonation practice. It listens to your microphone or analyzes uploaded performance videos/audio files in real-time.
📊 Hardcoded 15¢ Scoring System
Intonation accuracy is evaluated against a hardcoded 15-cent tolerance range:
- 0 cents offset = 100% (dead center perfection)
- ±15 cents boundary = 0% threshold
- Beyond ±15 cents = Negative percentages (sharp/flat outliers)
🏆 Official Grading Scale
| Grade | Percentage Range |
|---|
| A+ | 95% – 100% |
| A | 80% – 94% |
| A- | 70% – 79% |
| B+ | 60% – 69% |
| B | 50% – 59% |
| B- | 40% – 49% |
| C+ | 30% – 39% |
| C | 20% – 29% |
| C- | 10% – 19% |
| D | 0% – 9% |
| F | < 0% (Out of tune) |
🎹 Replay & MIDI Download
Tap "Replay" to listen back using a real SoundFont instrument (the same GM instrument selected in Settings). The SoundFont loads once and is cached. Tap again to stop.
Use the MIDI Playback Volume slider in Settings to adjust the loudness (range 0.05 – 4.0).
Tap "💾 MIDI" to download a standard .mid file directly to your device!
🧩 Phrase Break
When enabled, the tablature view groups notes into separate lines based on silence gaps (using the Silence Timeout setting). Each phrase appears on its own line with a subtle divider, making musical structure more visible.
🔧 Fixed in v1.6
SoundFont instrument selection bug fixed: Previously, switching to a non-string instrument (like Bright Acoustic Piano) would still play back as Violin. This version correctly loads and plays the selected SoundFont instrument every time.