DTMF Tone Extractor

DTMF Tone Extractor


ToneExtractor can decode DTMF (dual-tone, multi-frequency) signals back to numbers

The following are the frequencies used for the DTMF system, which is also referred to as tone dialling. The signal is encoded as a pair of sinusoidal (sine wave) tones which are mixed with each other. DTMF is used by most PSTN (public switched telephone networks) systems for number dialling, and is also used for voice-response systems such as telephone banking and sometimes over private radio networks to provide signalling and transferring of small amounts of data.

Recent changes:
Added:
ICS Support
600% Booster Performance
Dynamic Range
Processor Info
240x320 Screen Compatibility
Startup Test
Fixed:
Samsung Devices Compatibility
Better Memory Allocation
Better Detection Algorithm
Smaller Size
Some Icons
Removed:
Double Check
Android 1.5 Support
Manual Range
Sensitivity
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Free
73
3.7
User ratings
60
Installs
10,000+
Concerns
0
File size
272 kb
Screenshots
Screenshot of DTMF Tone Extractor Screenshot of DTMF Tone Extractor

About DTMF Tone Extractor
ToneExtractor can decode DTMF (dual-tone, multi-frequency) signals back to numbers

The following are the frequencies used for the DTMF system, which is also referred to as tone dialling. The signal is encoded as a pair of sinusoidal (sine wave) tones which are mixed with each other. DTMF is used by most PSTN (public switched telephone networks) systems for number dialling, and is also used for voice-response systems such as telephone banking and sometimes over private radio networks to provide signalling and transferring of small amounts of data.

Recent changes:
Added:
ICS Support
600% Booster Performance
Dynamic Range
Processor Info
240x320 Screen Compatibility
Startup Test
Fixed:
Samsung Devices Compatibility
Better Memory Allocation
Better Detection Algorithm
Smaller Size
Some Icons
Removed:
Double Check
Android 1.5 Support
Manual Range
Sensitivity

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User reviews of DTMF Tone Extractor
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Android Market Comments
A Google User
Jul 29, 2014
Worthless I love the idea, but couldn't get it to display any numbers. All I saw was a graphic display that is as hard to decipher as listening to the audio.
A Google User
Jul 8, 2014
Excellent app Saved me a lot of time while setting up some modems using DTMF tones.
A Google User
Jun 8, 2014
needs work Interprets a constant tone as a sequence of numbers.
A Google User
Mar 12, 2014
Says free but its a demo Says free but its a time demo
A Google User
Feb 25, 2014
Failed to work Does nothing on Galaxy S4