Processing Effects and Realtime Effects

Soundtrack Pro gives you two ways to use audio effects in your projects: processing effects and realtime effects. Audio effects can be applied as processing effects to entire audio clips or regions of audio clips, resulting in nondestructive actions that can be adjusted at any time. Audio effects can also be applied to tracks, submixes, and busses as realtime effects, enabling parameters of the effects to be automated so that they change over time.

The same audio effect can be applied either as a realtime effect or a processing effect, with different results.

Applying Processing Effects

You can apply processing effects to clips and regions of clips in the multitrack Timeline as well as to audio file projects (or regions thereof) in the File Editor. The Process menu includes an Effects submenu where you choose processing effects to add to your project. Processing effects are added as actions, which you can turn on or off, reorder, and adjust in the Actions list.

To apply a processing effect to a clip in the Timeline
  1. In the Timeline, select one or more clips, or portions of one or more clips.

    For more information about selecting clips, see Selecting Audio Clips in the Timeline and Editing with the Timeslice Tool.

  2. Choose Process > Effects and choose one of the effects from the submenu.

    The effect’s advanced settings window appears.

    Figure. Effect advanced settings window, showing Play button, Reset button, preview volume slider, Toggle Effect Bypass button, Show Presets button, Apply button, and other controls.
  3. Make adjustments in the advanced settings window.

    You can adjust the effect’s parameters by moving the controls in the window. Each advanced settings window may have unique controls in addition to sliders, buttons, and value fields.

    For detailed information on adjusting the parameters of specific effects, see the Soundtrack Pro Effects Reference document, available in the Help menu.

  4. Optionally, do any of the following:

    • Click the Play button to hear the effect and your adjustments to it.

    • Click the Reset button to reset the parameters to their default values.

    • Click the Toggle Effect Bypass button to hear the audio without the effect.

    • Click the Show Presets button to display the available presets.

      For more information about presets, see Working with Effect Presets.

  5. Click Apply.

    A corresponding action appears in the Actions tab for the clip.

For more information about working with processing effects, see Processing Audio Files. For information on working with actions, see Working with Actions.

Applying Realtime Effects

You can add realtime effects to entire tracks, busses, and submixes in a multitrack project or to an entire audio file project. You can automate realtime effects parameters to create changes over time. Realtime effects modify the audio as it passes through them, so you hear any changes you make, or any new audio you add, through the sound of the effect. Each realtime effect has effect parameters you can adjust to control how the effect modifies the audio.

You can create effects chains on a track, bus, submix, or audio file using realtime effects. An effects chain is a series of effects that modify the audio in a set order. Using busses in the Timeline and Mixer, you can create submixes, and apply the effect to all the tracks in a submix with one set of controls.

For information on working with realtime effects in both multitrack and audio file projects, see Working with Realtime Effects.

Note: This chapter describes the various categories of effects included with Soundtrack Pro. For complete information on the details of each realtime effect, see the Soundtrack Pro Effects Reference document, available in the Help menu.

Rendering Realtime Effects to Actions

You can also convert any realtime effect that you have applied in the File Editor project view to an action in the Actions list, which enables you to turn these effects on or off, reorder them in the list, and save them with the audio file project. For more information, see Working with Realtime Effects.