Back to the charts

Ranklookout

ボイスバイタル — App Store rankings

satoshi amasaki · Health & Fitness · View on the App Store

About this app

The developer's US App Store description, in full.

Analyze a 5-second sustained vowel to visualize health trends from subtle variations in vocal fold vibration. Measures 6 acoustic parameters based on peer-reviewed research in speech pathology and psychoacoustics. Parameters: - F0 (Fundamental Frequency) [Titze 1994] - Jitter — neuromuscular stability index [Baken & Orlikoff 2000] - Shimmer — vocal fold symmetry and closure [Baken & Orlikoff 2000] - HNR (Harmonics-to-Noise Ratio) [Yumoto et al. 1982] - CPP (Cepstral Peak Prominence) [Hillenbrand et al. 1994] - Alpha Ratio [Laukkanen et al. 1997] Features: - Instant analysis from 5 seconds of voice - 3-axis scoring: Stress, Fatigue, Stability - Daily trend charts - Full parameter references Not a medical device. Results are for reference only.

ボイスバイタル is not in the top 100 free charts we capture daily. Use the live check below to look at all 12 countries right now.

More from satoshi amasaki

Check live

Your browser reads Apple's charts right now, so this is live rather than from yesterday's capture.