DTMF Tone Generator & Decoder

Arcoiris Labs India

About this app

DTMF Tone Generator with Decoder is useful for testing DTMF tones in communications, DIY electronic projects and other applications.
DTMF Tone Generator with Decoder is an application made for communication engineers, hobbyists, enthusiasts working from Arduino to ham radios
This app can generate & play tones in your desired sequence at desired duration & delay between tones.
We are also able to decode DTMF tones using Goertzel Algorithm which is used for detecting if specific frequencies are present audio. It has been most commonly used to detect DTMF(aka Touch-tone) in telephony.
This app is made for developers and engineers hence this app will not have any ads

Ratings and reviews

Great for its purpose. Only one issue: in tone detector, the stop button doesn't un-press after being pressed, so if you want to stop detecting multiple times, you have to close and re-open the app. Other than that, pretty good.

I tried this app to use touch tone to dial out on a land line over a rotary phone. The tones are good quality and work consistantly when manually dialing. When using "play" to dial the whole number at once, the tones sound aweful and harsh and the pbx does not pick up anything and the dial tone does not go away. Please make the "play" tones sound exactly like when you push each number manually.

Brilliant constructed app, easy interface and works perfectly: thanks for providing it for free! I wrote a python script to generate DTMF codes by mixing the required frequencies and then play them over the computer loudspeaker. Used this app to decode the tones generated, and it was spot on. A short delay is needed between the tones to decode but it gets them all. Well done for providing this super app! The app does a great job and so has the author :-)