DTMF Tone Generator and Decoder

Contains Ads

Application for DTMF encoding/decoding.

Needs Audio Record permission for Decoder to work correctly.

Keypad configuration

Configured keypad frequencies either in DTMF Encoder screen or DTMF CONFIGURATION are valid for decoding and frequencies configured here are used for Decoding. Configuration is shared in all operation with DTMF - encoding,decoding.

DEFAULT Button

Sets keypad frequencies and duration to default values (STANDART).

Transcript support - numbers to chars according to keypad.

Encoder

USAGE:

Click on key in keypad to generate tone to produce sound via AudioTrack.

Whole input could be played by clicking Play button - Top right corner.

Encoding uses frequency configurable keypad and phase(duty signal) duration. Encoding creates signal for each key in keypad, each period is long for 2 phase duration, 1.st 1/2 part is generated DTMF signal of symbol, 2nd part is empty(not generating wave).

Play at top left corner of keypad enabled causes immediate signal sound output, could be disabled/enabled by clicking.

Decoder

Uses microphone to get input, while RECORDING enabled service is in realtime decoding sounds to DTMF symbols using current configuration.

You can save Text as text file(.txt) and currently recorded audio as WAV(.wav) file into external memory, if enabled write permission, if this application has permission. Planned feature: AAC encoding

If you like it, you could buy me a coffee.
Read more
Collapse
3.1
18 total
5
4
3
2
1
Loading...

What's New

Ads integration + fixes.
Read more
Collapse

Additional Information

Updated
March 18, 2018
Size
1.9M
Installs
5,000+
Current Version
v0.0.4
Requires Android
4.2 - 8.0
Content Rating
Everyone
Permissions
Offered By
Jan Tlamicha
©2020 GoogleSite Terms of ServicePrivacyDevelopersArtistsAbout Google|Location: United StatesLanguage: English (United States)
By purchasing this item, you are transacting with Google Payments and agreeing to the Google Payments Terms of Service and Privacy Notice.