Use the Adjust Length feature to change the length of audio by speeding it up, or by slowing it down.
To adjust the length of audio, do this:
1. | Select the media file in the library that you want to adjust. |
2. | Click Adjust Length under the Adjust Audio section. |
3. | Decide whether you want to perform the adjustment on all the available channels, or just one channel. See Selecting Channels for Editing for more information on selecting channels. |
4. | If required, use range selection to select the portion of audio you want to adjust the length of. If you don't select a range, the adjustment is applied to the entire audio file. See Range Selection for more information on selecting a range of an audio file. |

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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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5. | To adjust the length of the audio, do one of the following: |
• | Manually enter the New audio length in the field provided. Use this feature if you want the audio to be an exact specified length. |
• | Use the Stretch ratio slider to set the increase/decrease amount you want to use. |

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Note: if required, you can use both the New audio length and Stretch ratio features together to adjust the length of the audio.
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6. | Select the Keep pitch option to have CyberLink AudioDirector maintain the pitch of the original audio, so that the adjusted result does not sound sped up or slowed down. |

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Note: Keep pitch is only available if the change to the audio's length is between 0.5X and 2X.
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7. | If required, you can preview the adjusted audio by selecting Adjusted result and then clicking the play button on the playback controls. Select Original audio if you want to play the audio at its original length. |
8. | Click Apply to adjust the length of the audio. |
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