Description - iOS app / Audio Tone Generator for iPad

Audio Tone Generator for iPad - Reference Audio Test Signal Tools

icon_ATGtab

Audio Tone Generator for iPad" is a high quality Audio Signal Generator application for iPad, which creates the Audio Reference Signals as Sinewave, Frequency Sweep, White Noise, Pink Noise. This app is a high performance version of iPhone app, "Audio Tone Generator".

"Audio Tone Generator for iPad" 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 DVD quality and a frequency accuracy of 0.1Hz.

By the version 4.0, it has been added a new feature, the band-pass & band-stop filtering frequency settings in Noise mode.

We also offer "Octave Band Noise Generator" which enhanced the noise generation function. It can programmably generate the reference noise signal of 1/1 octave band and 1/3 octave band.


atgtab_sine atgtab_sweep atgtab_pink_init

We also offer the other iPad apps for audio measurement, Spectrum Audio Analyzer "fo-Kannon" and Spectrogram Audio Analyzer "fo-Onmon". By having you to use it in conjunction with our Real-time Audio Analyzer app "fo-Kannon", it can be easily measured the frequency response of your Audio system.


Please to click the following link to download "Audio Tone Generator for iPad" from App StoreTM. It will be open the download page on App StoreTM.


It will move to another site, download from Aplle Store


Installation of iTunes is required.
You can download this app, communications charges when connecting to the App Store will be borne by the customer.
* iPad, AirPlay is a trademark of Apple Inc., registered in the U.S. and other countries.

* App Store is a service mark of Apple Inc.

Products Information

Version : 4.0
Release date : December 4, 2016 UTC.
Size : 2.6 MB
Category : Utilities, Music
Recommendation : Compatible with iPad. Requires iOS 10.1 or later.

Sound source generation

"Audio Tone Generator for iPad" app can generate the following signals.

Sinewave
Sweeped Sinewave
White Noise
Pink Noise (1/f noise)

Features

Sinewave generation
- Preset frequencies: 63Hz, 125Hz、250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 12kHz, 16kHz

- Keyboard input frequency : 20Hz - 23999.9Hz / 0.1Hz unit

Frequency Sweep of Sinewave generation
- Preset frequencies: 200Hz to 4000Hz, 20Hz to 20000Hz, 1000Hz to 8000Hz, 220 - 880Hz

- Keyboard input frequency : 20Hz - 23999.9Hz / 0.1Hz unit

- Sweep Time span from 10 seconds to 180 seconds, in units of 5 seconds.

Noise generation : White noise or Pink noise
- Frequency response : 20Hz - 22000Hz / -3dB

Noise generation with Filter processing
- High pass filter (HPF) : 100Hz, 400Hz

- Low pass filter (LPF) : 4000Hz, 8000Hz

- Keyboard input frequency : 20Hz - 20000Hz / 100Hz unit

Output Gain Control
Selection of the output channel : LEFT & RIGHT / LEFT / RIGHT
Phase Inversion : In phase / Out of phase
DVD Quality Output : 48000 samples/second
Frequency Accuracy : 0.1Hz
Retina Display Support

Applications

"Audio Tone Generator for iPad" can be very useful for a variety of applications including:

Testing for Loudspeakers and Headphones
Testing and tuning for Audio amplifiers, Equalizers and many other Audio equipments.
Acoustics testing
Frequecy response measurement for Audio systems using White noise and Pink noise
Sound Masking
Relaxation and Meditation
Hearing Test to find the maximum frequency that you can hear.
Mosquito sound creation for teenagers

How to use - Top View

At the time of starting the app "Audio Tone Generator for iPad", Top View will be displayed.

Top View has Mode selection area at the top, Operation panel area in the middle and Control area at the bottom.


atgtab_topview

First, in the mode selection area, select one of four operation modes: Sinewave (Sine), Frequency sweep (Sweep), noise (Noise), app information (Information).

In Operation panel area, the selected Operation panel is moved to the center position and displayed, and each parameter settings becomes possible.

In Control area, there are Play, Stop, Sound volume, Output channel selection (LEFT & RIGHT, LEFT, RIGHT) and Phase inversion.

How to use - Sinewave Mode

This is the mode for generating a tone signal by Sinewave. It selects in Sinewave Mode when you tap the sine button at the top, and Sine panel is moved to the center position.

When you tap the frequency display monitor, you can input by the keyboard in the range of 20.0Hz to 23999.9Hz at 0.1Hz unit. Noted that the initial value has not entered at the application startup, you need to set a value of frequency. On the frequency input, please press the Return key after entering a numeric value.

You can also set the frequency of nine types by Preset button.

It generates a tone signal by PLAY button, and stops by STOP button.


atgtab_sine_play atgtab_sine_kb

How to use - Sine Sweep Mode

This mode is used to generate a sweeped tone signal by Sinewave. It is in Sine Sweep mode when you tap Sweep button at the top.

It generates a sine wave of transitional frequency continuously.

When you tap the frequency display monitor, you can input by the keyboard in the frequency range of 20.0Hz to 23999.9Hz at 0.1Hz unit. In keyboard input, you should set both the upper limit and lower limit frequency. Noted that the initial value has not entered at the application startup, you will need to be set up two values of frequency continuously. On the frequency input, please press the return key after entering two numeric values continuously.

You can also set the frequency of four types by Preset button.

In addition, the sweep time can be set by up-down button within the range of 180 seconds from 10 seconds, in 5 seconds unit.

There is the forward / backward PLAY buttons in Control area that can be generated rising sweep and downward sweep. It generates a tone signal sweep by PLAY button, and stops by STOP button.

atgtab_sinesweep_fw atgtab_sinesweep_rw atgtab_sweep_kb

How to use - Noise Mode

This mode is used to generate Pink noise and White noise.

Choose white noise or pink noise and tap the play button to generate a noise signal. Tap the stop button to stop the signal.

In addition, it has the band-pass & band-stop filtering for the noise. It is possible to output a noise signal whose frequency band is limited through a high-pass filter (HPF) and a low-pass filter (LPF) for a noise source. It is necessary to select the HPF, LPF filter according to the required frequency band, and further set the cutoff frequency. The preset value of the cutoff frequency is as follows:

Preset Cut-off frequency for band-pass & band-stop filtering :
- High pass filter [HPF] : 100Hz / 400Hz

- Low pass filter [LPF] : 4kHz / 8kHz

ss_noise_pink ss_noise_white

When you tap the frequency display monitor, you can input by the keyboard in the frequency range of 20Hz to 20000Hz at 100Hz unit. Noted that the initial value has not entered at the application startup, you need to set a value of frequency. On the frequency input, please press the Return key after entering a numeric value.


ss_noise_pink ss_noise_white

Also, the filter can be set attenuation per octave. Please select from 6 presets. The default is -24dB/oct.

Attenuation per octave of Filtering :
- Attenuation Level : -3dB/oct, 6dB/oct, -12dB/oct, -18dB/oct, -24dB/oct, -Infinity.


ss_noise_pink ss_noise_white

App Information

At the tap of Information button at the top, and you can see the app information.

When you tap "Support Information", Safari will be started and you see our support page. In addition, tap "Other App Information", the "App Store" app will be started and you find our iOS products information.

atgtab_info

Future update plan

Multi-functionality and improvement in operability.

Information

Audio Tone Generator for iPad version 4.0 was released on December 4, 2016.

* Added filter frequency setting function, UI design change, iOS 10.1 support, performance improvement.

Audio Tone Generator for iPad version 3.1 was released on March 9, 2016.

* Correspond to iOS9.

Audio Tone Generator for iPad version 3.0 was released on October 19, 2015.

* Selection of the output channel. Phase Inversion in STEREO output. Add Filter Processing to NOISE mode. Correspond to iOS9.

Audio Tone Generator for iPad version 2.1 was released on July 9, 2015.

* Bug fixed.

Audio Tone Generator for iPad version 2.0 was released on May 7, 2015.

* Addition of Preset frequencies. Changed UI design. Code Optimization. Correspond to iOS8.

Audio Tone Generator for iPad version 1.3 was released on April 28, 2014.

* Addition of Warble tone generation. Changed UI design and App name. Correspond to iOS7.1.

AudioTGtab version 1.2 was released on November 26, 2013.

* Minor bug fixed.

AudioTGtab version 1.1 was released on October 18, 2013.

* Supports for iOS7, performance improvement

* Redesign of UI, Add of sweep time setting function

AudioTGtab version 1.0.0 was released on June 14, 2013.

Attention

Please be careful that continuous high-volume and high-frequency signals can damage speakers, even if your ears don't perceive them as being too loud.

On the keyboard-input of frequency, please press the return key after entering a numeric value. Also, in the sinewave sweep mode, please press the return key after entering two numeric values continuously.

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.

Request for review

Please send a review of your comments and requests for this app. We will use your review t

If the silent mode is turned on, all sound outputs are disabled. To enable the sound output, please be sure to turn off the silent mode in the iPhone' settings, "Settings/Sounds" or Control Center.

o improve our products. Thank you for your cooperation.

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Contact us

Inquire about this app please from below! Please contact us with the following details if you have any requests or problems.

support@toon-llc.com

1. Application name
2. Device model
3. iOS version
4. Country you live
5. Details about your requests or problems.

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