html5 js 录音 mp3 wav ogg webm amr 格式，支持pc和Android、ios部分浏览器、和Hybrid App（提供Android IOS App源码），微信也是支持的，提供H5版语音通话聊天示例 和DTMF编解码

ToneDef is a small, but powerful tone dialer application for Android featuring DTMF, bluebox, and redbox tone generation.

C# implementation of the Goertzel algorithm for DTMF tone (a.k.a. Touch-Tone) detection and localization in audio data. Includes wrappers and extensions for NAudio.

some synth defs for SuperCollider

DTMFDuino receives DTMF tones through a MT8870 integrated circuit who converts the analog audio of tones to a binary code understandable by the microcontroller. The microcontroller runs Arduino bootloader and converts the received codes to actions (turn on and off some outputs), also the system has the option to know the current state of each output.

Dtmf generator for stm32

Extract phone numbers from an audio recording of the dial tones.

📞 Using Matlab to simulate Dual-Tone Multi-Frequency (DTMF) of telephone

DTMF Tone Generator and Receiver

Demonstrates using React and Redux middleware to control a Web Audio API system by simulating a TouchTone keypad

N5JLC Repeater Programming Utility

DTMF decoder for STM32

Project of Signals & Systems course

Library to generate DTMF tones only using Arduino Uno.

Converter from pulse dialing to tone dialing

Know the train running status through an IVR

An Ardunio DTMF decoder used to control a relay board. Using a ham radio receiver, I can switch lights, radios, computers...anything...on or off from miles away.

Generate and Detect DTMF tone

Gamepad HID decode DTMF

Dial a telephone number on your POTS phone

Small, interactive, offline projects, mostly in Processing

Generate Dual Tone Multi Frequency (DTMF) tones.

Code and hardware design for a Bluetooth to POTs telephone adapter

A web based DTMF encoder/decoder.

A repository of some of the code I've experimented with/written for projects including, but not limited to, Arduino, Raspberry Pi, Kinect etc.

A robot(car) that is controlled by the DTMF signals produced form a cellular phone.

oldschool phone phreaking. Back in the early 90's when no kid owned a cellphone..

Handle calls and DTMF interaction as a SIP user agent for Node-RED

A library to generate DTMF tones, convert file in DTMF sequences. Include cmd line tool.