What's New
This app has been updated by Apple to display the Apple Watch app icon.
App Description
This test can check your voice quality by variations of frequency (Jitter).
Jitter and shimmer are measures of the cycle-to-cycle variations of frequency and amplitude, respectively, which have been largely used for the description of pathological voice quality.
Higher jitter levels suggest that something is interfering with normal vocal fold vibration and the mucosal wave.
Whereas jitter is a measure of the percentage irregularity in the pitch of the vocal note, shimmer is a measure of the percentage irregularity in the amplitude of the vocal note.
iPhone Screenshots
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App Changes
- November 15, 2015 Initial release
- November 17, 2015 Price increase: FREE! -> $0.99
- November 21, 2015 Price decrease: $0.99 -> FREE!
- January 13, 2016 Price increase: FREE! -> $0.99
- January 16, 2016 Price decrease: $0.99 -> FREE!
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