DTMF Output Plug-ins

These plug-ins generate the DTMF tones and send them via the selected sub-plug-in. Once it is configured, you can use it to add DTMF Output events in your playlist.

Select the DTMF Output Plug-in row and press the Configure button. The dialog to the right will appear. Go to the Sub-Plug-ins tab first, to select the output audio device. Press the Toggle button to activate it.

Currently, there are two possibilities – DTMF Output Sound Device and DTMF Output Virtual Driver:

DTMF Output Sound device

When you activate this sub-plug-in, the DTMF tone is sent to a device, defined into the plug-in configuration. Select the plug-in and press the Setup button. The configuration window will open.

In the Output Settings area you can define the parameters of the DTMF tone: Frequency, Bits per sample, number of Mono Channels, and Channel Mask. Depending on the channel Mask, the DTMF tone is sent to a specific audio channel. If Channel Mask is zero (0), the DTMF is not sent. If it is one (1), DTMF is sent to the 1st mono channel. If it is two (2), DTMF is sent to the 2nd mono channel. Note that the channel mask is a bitmask, where:


Stereo 1

Stereo 2

Left – 1

Left – 4

Right – 2

Right - 8

L + R – 3

L + R - 12


In the DTMF setting you can define:

Length of the standard Symbol in DTMF sequence – numbers from 0 to 9 and letters A, B, C, D.

Pause Length – length of the pause between symbols

Specific symbols length – Specific symbols are all symbols in the DTMF strings, different than numbers from 0 to 9 and letters A, B, C, D.

Level of the signal – the signal level in percent.

In the Device select field you can select which audio device to be used from a drop-down list. The list is created automatically, in accordance to the devices installed on your machine.

DTMF Output Virtual driver

When you select this driver, the DTMF tone is sent to some third party application (which can receive tones) instead of the computer audio device.

When you define the plug-in, you can go back to the DTMF Presets tab. Press the Add button to create a new preset. Enter the name of the preset and the DTMF string for it.