Sound Tools Free

Sound Tools Free


(2 stars)


Download for Android Like

10,000 - 50,000 downloads

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Demo version of the Full Sound Tools App:

This is the LOOK and FEEL version of the full Sound Tools App. It only runs for 30 seconds!

Visualize sound and frequencies!
Main tools are:
+Visualize real-time recording sound wave form and display dBFS (Decibel Full Scale) meter.
+View the real-time (FFT) frequencies of the recording sound. Show the main (dominant) frequency.
+Real-time audio / recorded spectrum analyzer. Measure the magnitude of an input signal versus frequency within the full frequency range of the instrument. Display frequency (Fourier) bins (buckets). In the settings one can change the number of requency bins to display.
+Real-time instrument tuner; calibrate your guitar, violin, piano, and other instruments. Display the current recorded frequency in Hz and the note closest to this recorded frequency.
+Play a 440 Hz A tone / note to tune your instruments.
+Measure in real-time the Sound Pressure Level (SPL) on your Android. SPL is in dB(A). This Decibel measurement is A-weighted and thus adjusted for human ears.
+A metronome which produces regular (latency free), metrical ticks (beats, clicks). The Beats Per Minute are from 1 up to 250 BPM.
+ One can change the sampling rates.
+ All graphics are drawn in real-time with no delays!

Also English, French, Dutch and German help included.

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Recently changed in this version

-Only 30 seconds of fun.
+Added Grid with text.
+Peak indicator.
+Updated spectrum analyzer.
+Multi-language help.
+Tested on Android 1.0 up to 4.02 (Ice Cream Sandwich).

Comments and ratings for Sound Tools Free
  • (27 stars)

    by johnclovell on 04/08/2014

    Horrible. It only runs for 30 seconds in the free mode. it blacks out the display after 1 second, making it almost unusable. Don't bother

  • (27 stars)

    by Rusdy Yardi on 18/10/2013

    After purchased the apps keep blank screen on my Samsung S4

  • (27 stars)

    by david l on 05/05/2013

    its probably a ploy to get phone or email contacts from your phone. it does nothing. some flashing lights bells and whistles. you spend 5 second recording the next 25 trying to understand how to interpret. then 5 minutes trying to unfreeze your phone! wow! then i was just forced to give it a star to accept this review!