Measures
AVQI (Acoustic Voice Quality Index): Combines 6 acoustic parameters into a single validated score for overall dysphonia severity.
- • CPPS - Smoothed Cepstral Peak Prominence
- • HNR - Harmonics-to-Noise Ratio
- • Shimmer Local - Cycle-to-cycle amplitude variation
- • Shimmer dB - Amplitude variation in dB
- • Slope - Spectral slope measure
- • Tilt - Long-term average spectrum tilt
ABI (Acoustic Breathiness Index): Combines 9 acoustic parameters specifically designed to quantify breathiness perception.
- • CPPS, Shimmer dB, Shimmer Local
- • Jitter Local - Cycle-to-cycle period variation
- • GNE (Glottal-to-Noise Excitation ratio) max
- • HFNO - High-Frequency Noise Offset
- • HNRD - HNR Difference
- • H1-H2 - First vs. second harmonic difference
- • PSD - Period Standard Deviation
📋 Standard AVQI/ABI Protocol
1
Record Speech
About 30 seconds of continuous speech at normal volume and pace
2
Record Vowel
3-5 seconds of sustained /a/ at comfortable pitch
3
Upload Both
Analysis requires both recordings for accurate calculation
4
Get Results
AVQI and ABI scores with reference context
Upload Two Recordings
1
🗣️
Continuous speech
Drag & drop your audio file here or click to browse
Supports: WAV, MP3, M4A and many more • Maximum: 25MB
2
🎵
Sustained Vowel /a/
Drag & drop your audio file here or click to browse
Supports: WAV, MP3, M4A and many more • Maximum: 25MB