High Quality Audio Signal Generator App for iPad! Try to check your sound system! "Audio Tone Generator for iPad" is a high quality Audio Signal Generator application for iPad, which creates the Audio Reference Signals as Sine waves, Frequency Sweep, White Noise, Pink Noise and Warble tones. This app is the high-performance edition of iPhone app, "Audio Tone Generator".In the latest version 3.0, it has been added the three new features, the phase inversion, the band-pass filtering in Noise mode and the output channel selection. It will help you to make the benchmark for your audio equipment and loudspeakers, your listening environment and room acoustics or your hearing.The signals created by this app can be best used in conjunction with external devices, such as an audio spectrum analyzer or a sound level meter. It has a high precision of CD quality and a frequency accuracy of 0.1Hz. TOON,LLC is a company that seeks the comfort of sound environment based on our acoustic proprietary technology, and we will provide tools for audio professional, sound technology, home theater installer, and anyone who loves audio. Features: - Sine waves signal generation: Preset frequencies : 250Hz, 500Hz, 1000Hz, 2000Hz, 4000Hz, 8000Hz, 12000Hz, 16000Hz - Frequency Sweep signal generation: Preset frequencies : 200Hz - 4000Hz, 1000 - 8000Hz, 20Hz - 20000Hz Sweep Time span from 10 seconds to 180 seconds (Default : 60 sec) Reverse sweep signal generation. - Direct frequency input from the keyboard. (in 0.1Hz accuracy) - Warble tones generation in 1/3 octave bandwidth. - White Noise and Pink Noise generation with Filter processing : High pass filter (HPF) : 100Hz, 400Hz, OFF Low pass filter (LPF) : 4KHz, 8kHz, OFF- Selection of the output channel. (STEREO / LEFT / RIGHT)- Phase Inversion in STEREO output. (In phase / Out of phase)- Output Gain Control.- Supports of frequencies range between 20Hz to 20000Hz.- CD Quality Output- Frequency Accuracy : 0.1Hz- Retina Display SupportApplications:- Evaluating of Loudspeakers and Headphones- Evaluating and Tuning of Audio amplifiers, Equalizers and many other Sound equipments. - Acoustics testing.- Frequency response measurement for Audio systems using White noise and Pink noise- Burn-in for Audio systems, Sound equipments and Loudspeakers.- Demagnetization.- Sound Masking.- Relaxation and Meditation.- Hearing loss Test.- Mosquito sound creation.Note: On the keyboard input of frequency, please press the Return key after entering a numeric value. Also, in the Frequency Sweep mode, please press the Return key after entering continuously two numeric values. Please be careful that the high-frequency signals of high volume in continuous may damage the loudspeakers, even if your ears do not perceive it as being too loud.AirPlay data transmission is a wireless communication system using Apple's proprietary audio data compression. For this, there are cases where the random sound noise is generated by radio condition and the compatibility of AirPlay connection equipments.Note that it may occur at particularly high frequency band.Please visit our iOS App Support page for more information on this app.