TestTone app for iPhone and iPad

4.2 ( 4272 ratings )

Utilities Music
Developer: HTLab

1.99 USD

Current version: 1.3, last update: 2 months ago
First release : 31 Jul 2010
App size: 1.27 Mb

This is a test signal transmitter suitable for checking audio equipment, confirming the audible band, etc.
Can play sine waves and PINK noise or WHITE noise of any audible frequency (20Hz to 20kHz)
Please use it for measuring and adjusting audio equipment.

detail of function
You can switch between preset frequencies, white noise, and pink noise using the frequency preset button.
You can input any frequency by tapping the frequency display area.
You can also change the frequency in 1% increments using the left and right buttons.
Tap the ON/OFF button or icon at the top to start or stop playback
*Please be careful as playing at high volumes may have a negative impact on your hearing and may damage your audio equipment.