# ボイスバイタル

> Health & Fitness

Canonical page: [https://chrome-stats.com/d/id6772985032](https://chrome-stats.com/d/id6772985032)

## Overview

- **ID:** `id6772985032`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** satoshi amasaki
- **Category:** Health & Fitness
- **Version:** 1.0
- **Last updated:** 2026-05-26
- **First published:** 2026-05-26
- **Size:** 2.47 MB
- **Data as of:** 2026-09-03
- **Store listing:** [Apple App Store](https://apps.apple.com/jp/app/%E3%83%9C%E3%82%A4%E3%82%B9%E3%83%90%E3%82%A4%E3%82%BF%E3%83%AB/id6772985032?l=en-US)
- **Website:** [https://snarfnet.github.io/](https://snarfnet.github.io/)
- **Privacy policy:** [https://snarfnet.github.io/](https://snarfnet.github.io/)

## Description

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.

## Rankings

- #1,229,299 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6772985032)