bismark bs-spectrum 4+
Spectrum Analyzer
bismark LLC
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- £3.99
Screenshots
Description
bs-spectrum is a simple FFT spectrum analyzer application.
This application calculates FFT (Fast Fourier Transform) of the sound which is recorded by the iPad & iPhone's internal mic. The calculated data is displayed as graph.
http://www.youtube.com/watch?v=AHokaaxueW8
Option Setting:
- Mode: Linear, Logarithmic
- Window: Rectangle, Hamming, Hanning, Blackman
- Decay: 250[ms], ... 4[s]
- Amplitude Offset
What’s New
Version 3.0.0
Support the latest OS version
Ratings and Reviews
Very impressed with the accuracy
I've generated sin waves at different frequencies and measured them with this app, it was absolutely spot on. For the price I'm really pleased, there are similar apps for nearly twenty quid.
Major problem
This does not seem to produce a fourier transform. In a quiet room I would expect a sin wave to produce a peak at that frequency. Instead I get a reading at all frequencies with the lower frequencies showing the highest db levels. It seems unrelated to the frequency of the sin wave. A short noise produces a ripple from right to left of the graph. I'm running this on an iPad in linear mode.
App Privacy
The developer, bismark LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Privacy practices may vary based on, for example, the features you use or your age. Learn More
Information
- Provider
- bismark LLC
- Size
- 19.2 MB
- Category
- Music
- Compatibility
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- iPhone
- Requires iOS 15.0 or later.
- iPad
- Requires iPadOS 15.0 or later.
- iPod touch
- Requires iOS 15.0 or later.
- Mac
- Requires macOS 13.0 or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- Copyright © 2009-2024 bismark LLC, All rights reserved
- Price
- £3.99
Supports
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Family Sharing
Up to six family members can use this app with Family Sharing enabled.