Waveform

Waveform

Overview

The Waveform add-in allows for the creation of a graphical representation of the amplitude of the soundtrack attached to a sequence. This can be in the form of either a single channel that has the cell intensity vary with the amplitude. Or a bar-graph style display using a range of channels.

Components of Waveform add-in

Waveform add-in screen

Waveform representation

These are the options for the mode of operation of the waveform add-in.

On/Off over channel range

This is the option that generates a bar graph style representation of the amplitude of the soundtrack associated with the sequence. The intensity of the of the individual cells in the bar graph are set to 100%.

Dimmed values in single channel

This is the option that as its name implies uses a single channel that contains cells of varying intensity corresponding to the amplitude of the soundtrack.

Channel selection

This is where you select the channel(s) to use with the waveform display.

When selecting a range of channels for use with the On/Off values option, those channels must be in a single block. If you skip any channels the add-in will only work with the first group of channels it sees and will ignore the remainder you have selected.

The Dimmed values option will only allow you to select a single channel.

Auto scale

Selecting auto scale means that the add-in will ensure that only loudest sections of the soundtrack will be set 100% intensity for Dimmed value mode, or all channels of the range mode will be on.

Scale factor

When auto-scale is not selected the scale factor can be manually adjusted.

The above series of screen shots shows the audio visualiser representation of a section of the soundtrack attached to a sequence and the corresponding outputs from the waveform add-in. Firstly with auto scale selected, secondly a small scale factor entered, and finally with a large scale factor entered.

Completing the process

Once you have made your choices, click on the start button and the add-in will write data into the selected channel(s).