DTMF Tone Decoder

This software decodes DTMF tones.

DTMF Tone Decoder software is an essential tool for audio technicians, police officers, forensic technicians, countermeasures technicians, and other audio related professionals. This tool actually is an audio spectrum analyzer that is quite sophisticated yet simple to use. No complicated menus or setting up processes to be gone through. The analyzer gives you an inexpensive method to install audio systems such as microphones, amplifiers, equalizers, concealments, etc. A laptop computer is turned into a handy tool with this software to help you with the work. The combined tool then can tell you the bandwidth, dynamic range, and frequency response curve of the system being installed. The software features 2048 FFT Spectrum Analyzer, a WAV recorder / player with built in looping, a sine wave and white noise generator, a simple oscilloscope, and a DTMF decoder for decoding recorded DTMF tones from WAV files with a 45 character display window.

DTMF decoding is done in real time from WAV files as is high speed DTMF decoding from the file. Built in microphone / line / aux / CD inputs from your internal or external sound card is used as input to the tool. You will be able to store and recall audio spectrums, print spectrums, applying gain to the signal, and load saved spectrums behind active inputs. Some important display features include peak frequency display, spectrum hold and freeze, cursor identification of measured frequency and decibel level, etc. WAV files could be split, audio file volumes could be normalized and conversion to standard 44.1 sample rate is possible too. MP3 files could be converted to WAV easily. Level indicators are available. Color schemes could be adjusted. Your favorite settings can be saved as the default setting and these could be retrieved for use again. This is a very good tool.

Why use an audio spectrum analyzer? For those of you that have done video installations, would you install a camera and lens without a monitor to see what you are doing? Why would you do an audio installation without seeing what you are doing? The analyzer gives you an inexpensive method to install audio systems (microphones, amplifiers, equalizers, concealments, etc) using a laptop computer, internal or external sound card, and the software. For those that want to evaluate products in a general way, the software can tell you some of the characteristics such as bandwidth, dynamic range, and frequency response curve.