Audio Frequency Counter
Contains ads
4.1star
3.35K reviews
1M+
Downloads
Everyone
info
About this app
Frequency counter based on the microphone input. Counts when the input rises or falls past a set level and converts into into frequency or a time period. FOR INDICATION ONLY. Results depend on your device and its hardware. If you just want to know the frequency of a sound with harmonics (e.g. musicial instrument), a FFT based app such as keuwlsofts spectrum analyser or guitar tuner will be better. This app can provide more accurate frequency measurement for single frequency input signals. Features include:
Display of triggered event count and frequency or time period.
Graph of input signal, 2.5 ms/div up to 640 ms/div.
Gate time of 0.1s, 1s, 10s or 100s.
Gain from x1 to x1000.
Trigger on rise or fall.
AC or DC coupling.
Set a noise level so new event is not triggered until the signal has first passed this level.
More details can be found on the website.
Display of triggered event count and frequency or time period.
Graph of input signal, 2.5 ms/div up to 640 ms/div.
Gate time of 0.1s, 1s, 10s or 100s.
Gain from x1 to x1000.
Trigger on rise or fall.
AC or DC coupling.
Set a noise level so new event is not triggered until the signal has first passed this level.
More details can be found on the website.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted
Ratings and reviews
4.2
3.05K reviews
Tank R.
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January 8, 2024
Does what it says, for whatever you could use an app that counts waveforns over a certain amplitude (with a noise floor adjustment) on. However, unfortunately on my current device, an LG G6, it seems a bit glitchy. This is the first app from this dev I've had problems with. Although this phone has been problematic lately. So the 2 stars lost could be my device and not the app, but that is my experience. And its not enough for me to uninstall practically all the other apps of this dev I have!
7 people found this review helpful
Ian H
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August 24, 2024
Amazingly accurate (better than 2 decimal places on pure tones, & usually better than 1 decimal place on CD tracks - varies with CD player), but performance (particularly below 200Hz) varies with phone hardware - on my oldish Motorola it displays waveforms, but only gives a reading between 200Hz & 6kHz, after which it freezes. On a newer IMO it reads from 80Hz to 20kHz, but keeps closing down after about 6kHz, which is quite frustrating. NB: As developer indicates, only works with pure tones.
4 people found this review helpful
James Konyane
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March 31, 2023
This app is perfect. Frequencies are accurate. For those of us who are using frequencies for meditation and healing, use this App to test false frequencies. It's helped me a whole lot. BTW, when it says "contains ads", it means a tiny box at the top of the screen that you'll hardly ever notice
107 people found this review helpful
What's new
Updated to use newer code methods to better target and run reliably on devices in 2024. You can now select between audio source (default, mic or unprocessed) in the settings.
