Audio Kit used in noise measurement

This Norwegian article describes using Audio Kit for the measurement of noise. It describes using the Spectrum Analyser and SPL Meter in the Audio Kit App to measure and discriminate different noise types.

A translation to English is provided by google.

The current release of Audio Kit is 1.3.1 and details can be found here

The next release of Audio Kit, 1.4 is due in early December 2010.

Splss Spectss-1  Audio Kit on iTunes App store.
Published on Mon, 15 Nov 2010 23:59

iPhone Audio Kit update 1.3

The Audio Kit iPhone App from Sinusoid Pty Ltd has a new release, version 1.3.

The first version 1.0 included the following applications:

  • A real time Spectrum Analyser
  • <liScope – an oscilloscope to display waveforms

  • an SPL (sound pressure level) Meter

  • and a sine wave Signal Generator

Since the first release the following features have been added:

  • Signal Generator now includes white noise and pink noise signal types, in addition to the existing sine wave signal.
  • Spectrum display has 6 selectable FFT window function types – Hamming, Hann, Rectangular, Bartlett, Triangular and Blackman.
  • Spectrum now has selectable FFT sizes of 8192, 4096 and 2048, giving much better resolution of frequencies.
  • Persistent settings for all user preferences.
    All of the user preferences in each of the above applications can be made persistent between restarts of the App.
  • Large number display of strongest frequency in Spectrum display. This is in addition to the small moving text above the peak, and can be quickly turned on or off.

Common uses for this App include:


  • checking for feedback frequencies when setting up PA systems

  • an inexpensive oscilloscope to view audio waveforms

  • measuring sound pressure levels

  • providing audio test signals

Spectss

Spsettingsss


Siggenss

Scopesssine

A Press release is available here:
Audiokit Press Release1.3

See the Sinusoid web site for more information or this direct link to
iTunes App store.

Published on Thu, 16 Sep 2010 11:25

iPhone Audio Kit update 1.3

The Audio Kit iPhone App from Sinusoid Pty Ltd has a new release, version 1.3.

The first version 1.0 included the following applications:

  • A real time Spectrum Analyser
  • <liScope – an oscilloscope to display waveforms

  • an SPL (sound pressure level) Meter

  • and a sine wave Signal Generator

Since the first release the following features have been added:

  • Signal Generator now includes white noise and pink noise signal types, in addition to the existing sine wave signal.
  • Spectrum display has 6 selectable FFT window function types – Hamming, Hann, Rectangular, Bartlett, Triangular and Blackman.
  • Spectrum now has selectable FFT sizes of 8192, 4096 and 2048, giving much better resolution of frequencies.
  • Persistent settings for all user preferences.
    All of the user preferences in each of the above applications can be made persistent between restarts of the App.
  • Large number display of strongest frequency in Spectrum display. This is in addition to the small moving text above the peak, and can be quickly turned on or off.

Common uses for this App include:


  • checking for feedback frequencies when setting up PA systems

  • an inexpensive oscilloscope to view audio waveforms

  • measuring sound pressure levels

  • providing audio test signals

Spectss

Spsettingsss


Siggenss

Scopesssine

A Press release is available here:
Audiokit Press Release1.3

See the Sinusoid web site for more information or this direct link to
iTunes App store.

Published on Thu, 16 Sep 2010 11:25

Audio Kit - New iPhone App from Sinusoid

Sinusoid releases its new Audio testing iPhone App – Audio Kit

FFT Spectrum Audio Kit
The Audio Kit iPhone App is a collection of four applications which are essential for those working in
audio and sound. A real time Spectrum Analyser, a Scope to display waveforms, an SPL (sound pressure level) Meter, and a sine wave Signal Generator.

Published on Fri, 18 Jun 2010 15:33

Audio Kit - New iPhone App from Sinusoid

Sinusoid releases its new Audio testing iPhone App – Audio Kit

FFT Spectrum Audio Kit
The Audio Kit iPhone App is a collection of four applications which are essential for those working in
audio and sound. A real time Spectrum Analyser, a Scope to display waveforms, an SPL (sound pressure level) Meter, and a sine wave Signal Generator.

Published on Fri, 18 Jun 2010 15:33

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