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Sound Spectrum Pro
Rated: All Ages
3.9 out of 5 stars 7 customer reviews

Price: $5.99
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Sold by:Amazon Digital Services, Inc.
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This app needs permission to access:

  • Read from external storage
  • Record audio
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Product details

  • ASIN: B00WNIPQ3S
  • Original Release Date: April 25, 2015
  • Latest Developer Update: November 11, 2018
  • Rated: All Ages
  • Average Customer Review: 3.9 out of 5 stars 7 customer reviews
  • Amazon Best Sellers Rank: #11,792 Paid in Apps & Games (See Top 100 Paid in Apps & Games)
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Latest updates

What's new in version 1.74
  • Fixed automatic gain control and other pre-processing issues on some devices.

Product features

  • FFT (amplitude) and RTA (octave, 1/3 octave, ... down to 1/24 octave).
  • Sound pressure level dBA, dBC, and dBZ + equivalent continuous sound level LAeq, LCeq, LZeq.
  • Impulse response and RT60 measurement.
  • Lightning-fast FFT with size from 16k to 512k.
  • Built-in signal generators

Product description

A complete sound package for the sound engineer or enthusiast
RTA (Real-Time Analyzer), FFT (amplitude display driven by Fast Fourier Transform), calibration, signal generators...
Everything is included, bundled in a friendly interface with many on-screen controls and smooth real-time display.

== Features ==

+ FFT (amplitude) and RTA (octave, 1/3 octave, ... down to 1/24 octave).
+ Sound pressure level dBA, dBC, and dBZ.
+ Noise Criterion and Noise Rating in octave RTA.
+ Equivalent continuous sound level LAeq, LCeq, LZeq.
+ Impulse response and RT60 measurement.
+ Large font SPL + LEQ meter.
+ THD+N Total Harmonic Distortion plus Noise.
+ Lightning-fast FFT with size from 16k to 512k, providing frequency resolution of 0.1Hz directly and 0.01 Hz with downsampling.
+ Sample rate of 48kHz, if supported by the device.
+ Many window functions to choose from.
+ Logarithmic or linear frequency axis.
+ Peak and valley hold with adjustable decay.
+ Adjustable exponential smoothing.
+ Easy pan (drag) and zoom (pinch).
+ Measurement cursors, also used for setting frequency of signal generators.
+ File load/save and full calibration capability, for accurate SPL readings.
+ Signal generators: tone, white noise, white sweep, pink noise, pink sweep, pink octave, pink 1/3 octave.
+ Synchronous measurement mode.
+ Loopback mode.
+ Sharing and printing of screenshots.
+ No ads!

Technical details

Size: 1.4MB
Version: 1.74
Developed By: Lindentree Software
Application Permissions: ( Help me understand what permissions mean )
  • Read from external storage
  • Record audio
  • Write to external storage
Minimum Operating System: Android 4.1
Approximate Download Time: Less than 30 seconds

7 customer reviews

3.9 out of 5 stars

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July 18, 2017
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October 9, 2015
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June 24, 2017
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