Quick answer: Common causes are background noise, recitation pace, microphone quality, or occasional edge-case words. Try a quieter environment first. If accuracy feels broken on a specific ayah, report it — we use these reports to improve.
Things to try first
- Quieter environment. Fans, traffic, AC hum — all hurt accuracy. Try a silent room.
- Slower pace. The verifier works best at memorization pace, not fast recitation. 0.75× playback pace is typical.
- Clear articulation. Don’t rush harakat or shorten madd. The verifier checks tajweed durations.
- Microphone check. Device microphone on, not blocked by a case. Test with Voice Memo / Recorder app first.
- Bluetooth headset quality. Many BT headsets have low-quality microphones. Use the device’s built-in mic if you can.
Known limitations
- Some dialectal pronunciations (e.g., certain qira’at variants) may flag as “wrong” relative to Hafs ‘an ‘Asim, our default.
- Overlapping voices (a room with kids) can confuse the model.
- Very long single breaths > 8 seconds can cause timing misalignment.
Calibration
Settings → Verifier → Calibrate walks you through a 2-minute baseline. This tunes the model to your voice, accent, and mic. Strongly recommended for non-native Arabic speakers.
When to report
If the verifier consistently marks a specific word wrong across multiple attempts in a quiet environment, use report a bug with the surah and ayah. These reports directly improve the model.
