A pitch is detected by analyzing input sound and displayed in real time. This app can help you to tune a musical instruments or practice a singing.
--------------------------------------------------------------------------------------------------------A pitch detection was an octave off until ver 2.0.0 ( A4 was displayed at A3 )I corrected the bug in ver 2.0.1I am terribly sorry to have troubled you so much.--------------------------------------------------------------------------------------------------------
On the graph area:* Move a scale display area by dragging* Zoom in and out by pinching (or push the buttons on the bottom of the graph)
Display area of a volume graph and pitch detection sensitivity is adjustable using the barson the bottom of the screen.
Purchase this app:* Release function restrictions on a setting screen* Remove ads
Setting items:* Graph [Log, Liner]* Scale [Equal temperament, Frequency [Hz]]*Window function [None, Hanning window](Window function can improve accuracy of a pitch detection, but you would hardly feel the difference)
Technical info:* A pitch is calculated by a autocorrelation function (using FFT, IFFT, for fast computation)* Sampling frequency is 8000 Hz* The frequency at A4 is 440 Hz
VERSION HISTORY
- Version 2.0.1 posted on 2014-12-07
v2.0.1:,Correct a pitch detection display which was an octave off,v2.0.0:,Add labels for sliders,Bug fix for a sound level slider,Adjust a sensitivity slider,Current pitch and frequency display,(frequency in Premium version only),v1.2.0:,Add refresh, play and pause button,v1.1.0:,Function addition:,* Select line between points,* Add window functions (hamming and blackman window)
Program Details
- Category: Audio & Multimedia > Audio File Players
- Publisher: TetraCode
- License: Free
- Price: N/A
- Version: 2.0.1
- Platform: android