Use the Phaser to create a phase effect, which is produced by splitting an audio signal and then filtering it by shifting the signal's phase to and from the audio's frequency. This modified (wet) audio signal is then mixed back together with the original (dry) audio, giving the audio a watery or sweeping sound.
To add a phase effect to audio, do this:
1. | Select the media file in the library that you want to apply the phase effect to. |
2. | If required, use range selection to select the portion of audio you want to apply the effect to. See Range Selection for more information on selecting a range of an audio file. If you don't select a range, the effect is applied to the entire audio clip. |

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Note: the entire audio file's waveform is selected by default when this feature is opened. If you want to apply this feature to the entire audio file, you do not need to use range selection when the entire waveform is selected.
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3. | Decide whether you want to apply the effect on all the available channels, or just one channel. See Selecting Channels for Editing for more information on selecting channels. |
4. | Click Phaser under the Apply Effect section. |
5. | Select a phaser preset from the Presets drop-down. Select the preset that best suits the sound you want to achieve. |
6. | If required, click to modify the advanced settings as follows: |
• | Stage count: from the drop-down, select the number of stages, or phase shifting filters, that are applied to the audio signal. The more stages you select, the more dense sounding the phase effect will be. |
• | Delay depth: use the slider to set how much the filters sweep below the source frequency. The larger the delay depth, the more of a trembling effect it will have on the audio. |
• | Modulation rate: use the slider to control how quickly (measured in hertz, or cycles per second) the filters sweep to and from the source frequency of the audio. |
• | Feedback: use the slider to set the percentage of the phaser output that is fed back in to the original audio. A negative value will invert the phase waveform before feeding the audio back, reducing the loudness of the audio. |
• | Dry-Wet mix: use the slider to set the ratio between the dry (original audio) and wet (modified/filtered sound) audio. Dragging the slider to the left provides more of the original audio in the mix, while to the right adds more of the modified audio. |
7. | If required, you can preview how the applied effect will sound by selecting Adjusted result and then clicking the play button on the playback controls. Select Original audio if you want to play the original audio. |
8. | Click Apply to add the phase effect to the audio. |

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Note: if required, click on the Effect tab to see the applied effect in the edit panel. See Effect Tab for more information.
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