CIS 421Premiere >Audio Effects

Premiere Audio Effects

Audio Effects

  • Audio effects on audio clips work change the way audio sounds
  • You can change the way an audio clip sounds by adding audio effects to all of it or to a selected part of the clip
  • Keyframes work for some audio effects, just as they do for audio effects
  • To vary how the audio effect appears on the clip,
    • you make a keyframe where you want the audio effect to change
    • Or, you cut the clip into two pieces and apply the effect to one of them.
  • Audio effects are additive --
    • the one on top is applied first
    • the second on the list second, etc.
    • Changing the order of the audio effects will change the cumulative effect of the audio effects
  • You can drag audio effects up and down the list to see what happens
  • Adjust the volume of the audio clip at keyframes, using the Effects Control panel -- the volume effect is automatically available there.
  • Adjust the volume of individual tracks or the entire mix of audio tracks in the audio mixer, which is available on a tab behind the source window.

types of Audio Effects in Premiere

Bandpass

  • High Pass effect removes low frequencies from an audio clip
  • Low Pass effect removes high frequencies
  • Notch/Hum Filter - remove hum from an audio clip

Channel

  • Auto Pan - pans an audio track cyclically between the left and right audio channels.
  • Fill Left and Fill Right - plays the entire audio clip in the left or right stereo channel, respectively
  • Pan - positions the playback of an audio track at any point between the left and right stereo channels
  • Swap Left & Right - moves the left channel of a stereo audio clip into the right channel and vice versa

Direct-X

  • Direct-X Audio Filter provides filters from outside Premiere

Dynamics

  • Boost - amplifies weak sounds and leaves loud sounds intact
  • Compressor/Expander - controls dynamic range, the difference between the loudest and softest sounds by decreasing or expanding them
  • Noise Gate - removes background noise during quiet passages of an audio clip

EQ

  • Bass & Treble - adjust audio tone by boosting or cutting bass and treble
  • Equalize - refines the tonal quality of an audio clip
  • Parametric Equalization - allows fine tuning of tone for an audio clip

Effect

  • Chorus - applies a copy of the sound that is detuned, or played at a frequency slightly offset from the original
  • Flanger - inverts the phase of the audio signal at its center frequency -- adds a wavy rushing sound to the audio
  • Multi-Effect - creates a variety of echo and chorus effects by providing precise control over audio delay and modulation

Reverb and Delay

  • Echo - repeats the sounds in the audio clip after a specified amount of time
  • Multitap Delay - controls delay effects more precisely
  • Reverb - simulates the effect of a spacious or acoustically live interior

TC Works includes Direct-X plugins from TC Works

  • TC Dynamics
  • TC EQ

To add audio effects to an entire audio clip

  • Select the clip in the timeline
  • Click the twistie on the left of the audio track in the timeline to open the track
  • Click the keyframes icon to choose to see the volume level or the keyframes displayed on the audio clip in that track.

Select an audio effect and drag it onto a clip

  • Open Audio Effects and Effect Controls palettes from Window dropdown menu
  • Drag the Edit line (the vertical line extending from a downward tab at the top of the Timeline) to the beginning of the clip
  • Select the effect and drag it onto the clip in the Timeline
  • To set up the starting keyframe and ending keyframe (and any intermediate keyframes) of the effect you need to show the Keyframes
  • The Effect name should appear in the Effects Control palette.
  • Click the little box to the left of the Effect name in the Effects Control palette to show the keyframes
  • A little checkbox should appear in the audio 1A track just to the left of the track.
    • Checking this checkbox will set up a keyframe in the audio clip at the Edit line point.
    • Keyframes show as little white diamond shapes.
  • Click Setup to configure the audio effect as it will appear in the Keyframe
    • Different audio Effects have different configuration possibilities
    • Some will show you a preview of the audio Effect
    • Click OK to save the audio Effect configuration for the Keyframe
  • You can move the Edit Line over a frame in the middle of the clip, click Setup in the Effects Control palette and add an intermediate keyframe.
  • Save the Project and hit the Enter key to see a preview of the panning effect.

Preview the audio Effects

  • If your movie is long, you can adjust the timeline to shorten it to create a preview to view the audio effect effects. Try these audio effects.
  • Try multiple audio effects in a different order.

Be sure to take notes about what you do, and save different versions of your files!
Go for it!