User Manual

Table Of Contents
WAVELAB
26 – 646 Generating signals
DTMF Generator
DTMF (Dual Tone Multi Frequency – or Touch Tone) is a way of generat-
ing signals by combining two sine waves with variable frequencies, used
in telephone systems. The numbers you press generate sine waves of dif-
ferent frequencies, and these signals are then decoded at the central
telephone office to actually identify which numbers you press.
The DTMF Generator does just this – it allows you to generate an audio
file with the sounds you hear when pressing the different keys on a tele-
phone.
To use the DTMF Generator, proceed as follows:
1. Pull down the Tools menu and select DTMF Generator.
The DTMF Generator dialog opens.
2. Enter a dial string in the text box in the top of the dialog.
The characters you can use are the same as those you can use on a telephone and are
listed in the dialog. Any other characters will not generate any tone.
3. Select the desired standard; DTMF or MF.
The difference between the options is described in the table below.
4. Make the desired settings for Durations and Amplitude.
Click the question mark icon in the dialog for details.