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Audio Scope

Audio Scope
  • #: 202972
  • Price: $0.99 In Apple Store
  • Category: Music
  • Updated: 2009-08-04
  • Current Version: 2.1
  • 2.1
  • Size: 0.30 MB
  • Language: English
  • Seller: Hensley Industries, LLC
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.0 or later
  • © 2010 Hensley Industries, LLC
  •  Add to Favorite apps



Audio Scope uses the remote i/o audio unit for handling audio input and output. The application can display the input audio in one of the forms, a regular time domain waveform, a frequency domain waveform (computed by performing a fast fourier transform on the incoming signal), and a sonogram view (a view displaying the frequency content of a signal over time, with the color signaling relative power, the y axis being frequency and the x as time). Tap the sono button to switch to a sonogram view, tap anywhere on the screen to return to the oscilloscope. Tap the FFT button to perform and display the input data after an FFT transform. Pinch in the oscilloscope view to expand and contract the scale for the x axis.

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Rated 4/5 based on 3 customer reviews.


5/5 stars

Outstanding Value

Works great for me on iPhone OS 3.1.2.

If you need a functional oscilloscope and sonogram at a great price, this is the app for you.

4/5 stars

Nice app.

I would love the ability to save and export the spectrogram. Hopefully Something for a later release

4/5 stars

Awesome start

Audio Scope is an awesome start of what I hope will one day be a great acoustic measuring app.
In the mean time, it's only a dollar and still has some use.

There are a few nice views of the sound, however there is no way to see what frequency a given point on the graph is, nor is there a way to adjust gain, freeze the display for a bit to look at it etc...

Overall, Rob has three very nice views into the audio being received at the mic input.

This is one of those apps that in it's present state probably rates a 2/5, however I am giving it a 4/5
As it stands, it's not useful for much more than amusement. That said, it's only $1 and I think this app has loads of potential, I would hate to see the app abandoned due to low review scores.

Here's what I would like to see:
1- A gain adjustment
2 - A trigger and hold setting for the oscilliscope. (It would be a great tool for measuring slap echo in a room with this feature!)
3 - A way to identify the frequency under the cursor for the fft and sonogram modes
4 - A way to pause/freeze all 3 modes.
5 - A way to save/recall/compare results
6 - some form of help - even one screen would be plus!


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The information may be outdated (2011-04-25 08:21:03). For actual information go to iTunes

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