Audio Kit

Audio Kit

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Logo of Audio Kit

Audio Kit: Professional-Grade Tools for Audio Engineering and Sound Analysis

Precision at your fingertips with a real-time FFT spectrum analyzer, oscilloscope, calibrated SPL meter, and multi-mode signal generator designed for the modern audio professional.

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Publisher

Sinusoid Pty Ltd

Category

Music

Downloads

170K+

User Rating

4.3/5

Total Ratings

0

Locales

1

Precision at a Glance

Discover the interface used by 170K+ users.

Audio Kit app oscilloscope showing a red sine wave waveform

Audio Kit app oscilloscope showing a red sine wave waveform

Audio Kit FFT Spectrum analyzer displaying a frequency peak at 3600 Hz on a logarithmic scale.

Audio Kit FFT Spectrum analyzer displaying a frequency peak at 3600 Hz on a logarithmic scale.

Audio Kit signal generator interface showing frequency sweep settings

Audio Kit signal generator interface showing frequency sweep settings

Interface of the Audio Kit app displaying an SPL meter with real-time decibel level readings for professional sound analysis.

Interface of the Audio Kit app displaying an SPL meter with real-time decibel level readings for professional sound analysis.

Professional-Grade Audio Analysis in Your Pocket

The tools that make this app stand out, trusted by 170K+ users.

📊

Surgical Spectrum Analysis

Visualize frequencies in real-time with FFT sizes up to 8192 and precise peak detection for flawless acoustic tuning.

🔊

Calibrated SPL Metering

Measure sound pressure levels with A-weighting and peak tracking to ensure optimal volume and regulatory compliance.

〰️

Pro Signal Generation

Generate sine waves, white noise, and pink noise with 1Hz accuracy to test system responses and troubleshoot audio paths.

About the app

Everything you need to know about Audio Kit.

Description

Audio Kit is a collection of four tools which are essential for those working in audio, sound and music. A real time Spectrum Analyser, a Scope to display waveforms, an SPL (Sound Pressure Level) Meter, and a Signal Generator producing sine waves, white noise and pink noise. Sweep generation with In App Purchase. 
 -View a real time spectrum of audio with the Spectrum Analyser and identify peak frequencies precisely 
-View the actual waveform of the audio signal with the Scope 
-An SPL Meter provides measurement of sound levels using an A-weighting 
-The Signal Generator provides a sine wave output up to 20,000Hz in 1 Hz steps, along with noise generators for white and pink noise. Sweep generation with In App Purchase ** Spectrum
 ** FFT (Fast Fourier Transform) is used to calculate the frequencies in the Spectrum Analyser and these are displayed in real time. The frequency is displayed in either logarithmic or linear scale. Three FFT sizes of 8192, 4096 and 2048 are selectable, giving fine resolution of frequencies. Interpolation gives resolution to within 1Hz. 
6 different FFT window function types can be selected - Hamming, Hann, Rectangular, Bartlett, Triangular and Blackman. 
 Number of FFT windows can be selected from 1 through 4. The strongest frequency is displayed both above the peak, and optionally, in a large number display in the center of the screen. The large number display can be quickly switched on or off by double tapping the screen.
 There is a screen capture facility in the Spectrum Analyser allowing you to save the spectra for future reference along with details of the FFT parameters, time and date.
 A single tap freezes the screen. Other features such as screen capture and double tap to toggle large number display still work during the freeze. This feature can be turned off in preferences if it’s not desired.
 ** Scope ** The display of the Scope can be adjusted easily using pinch gestures in both horizontal and vertical directions. Zero crossing detection of the waveform provides a smooth display and can be set to either positive or negative direction zero crossing. 

There is a screen capture facility in the Scope allowing you to save waveforms for future reference.
 ** SPL Meter ** 
The SPL Meter continuously displays the sound pressure level using an A-weighting, and has resettable minimum and maximum displays also. SPL Meter can be calibrated against a reference standard or meter. SPL Meter has a continuous ticker style trace of the SPL over time.
 ** Signal Generator ** 
 The Signal Generator has 3 different output types: - Sine wave - White noise - Pink noise 
The output of the Signal Generator can be viewed on the other parts of the App.
 The sine wave frequency selected using picker wheels allows for accurate control of frequency to within 1Hz. Volume for the sine wave and noise signals is continuously adjustable.

 With an In App Purpose one can add a sine wave sweep generator functionality to the Signal Generator. The sweep generator can sweep increasing and decreasing frequencies, and using either a linear or log sweep rate. **Settings
 ** All of the user preferences in each of the above applications can be made persistent between restarts of the App. All parts of the App have direct access to a help document. Audio Kit - essential for those working in audio, sound and music.

Latest Version

2.3

Size

1.9 MB

First Released

Jun 18, 2010

Precision Analysis. Professional Results.

Join 170,000+ audio engineers and producers. Equip your iPhone with the essential toolset for real-time spectrum analysis, SPL measurement, and waveform monitoring.

Download on App Store

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