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Advanced Features
About Time Stretch and Pitch Shift Algorithms
5. Adjust the selection so that it is as close as possible to the audio that you want to
keep.
6. Press [Delete] or [Backspace] on your computer keyboard to remove the selection
and create silence.
7. Add silence to any other areas in the Guitar event that you think might need it.
• Load the project “Adding Silence 2” found in the “Sequel Tutorial 5” folder to hear
the project now that silence has been added.
About Time Stretch and Pitch Shift Algorithms
Sequel offers various functions where audio is time stretched or pitch shifted, for
example, audio quantization, Free Warp, and transposing, see
“Audio Quantization
and Free Warp” on page 103 and “Edit Audio – Transpose” on page 87. In the
Sample Editor, you can choose between different algorithms that perform the time
stretch and pitch shift in realtime.
The “Set Time Stretch Mode” pop-up menu contains algorithm presets for time
stretching and pitch shifting. It is sorted into category submenus based on the
underlying technology: élastique or Standard.
The élastique Pro algorithm is an algorithm for high-quality time stretching and pitch
shifting. It is suited for all kinds of audio recordings and for both polyphonic and
monophonic material. The audio quality is superior to the Standard algorithm. The
following modes are available:
Mode Description
élastique – Default This mode offers the best audio quality, without formant preservation.
This means that Mickey Mouse effects can occur when transposing
audio (especially vocals). If this is not what you want, use the
Formant mode.
élastique – Tape
Mode
In this mode, the pitch shifting is locked to the time stretching, as if
playing back a tape with varying speed. Stretching the audio to a
longer duration automatically decreases its pitch.
élastique – Formant This mode provides formant preservation, meaning that the timbre of
the audio is kept.