User manual

251
Audio processing and functions
Pitch Shift Mode
These are the same parameters as on the Transpose tab,
see “Algorithm Settings” on page 249.
Example
Let’s say that you wish to create a pitchbend effect, so
that the pitch is raised linearly by exactly 2 semitones in a
specific part of the selected audio.
1. Remove all curve points by clicking the Reset button.
2. Select a linear curve by clicking the Curve Kind button
to the right.
3. Make sure that the Range parameter is set to 2 semi-
tones or higher.
4. Create a point where you want the pitchbend to start
by clicking on the envelope line.
Since this is the starting point for the pitchbend, you want its pitch to be
zero (the envelope line should still be straight). If necessary, use the Fine-
Tune parameter to set the curve point to 0 cents, because this point gov
-
erns the start point, where you want the pitch transition to begin.
5. Create a new curve point at the horizontal position
where you want the pitchbend to reach the full value.
This curve point determines the rise time of the pitchbend effect, i. e. the
further away from the starting point the new point is positioned, the lon
-
ger it will take for the pitchbend to reach the full value, and vice versa.
6. With the second point still selected, use the Trans-
pose and Fine-Tune parameters to set the pitch to exactly
2 semitones.
7. Create a new curve point to set the duration of the
pitchbend, i.
e. the time the pitch will remain transposed by
2 semitones.
8. Finally, create a point where you want the pitchbend to
end.
You do not have to create a new point if you are at the end of the audio
file, since there is always an end point at the right side of the waveform
display.
9. If necessary, make additional settings in the Pitch Shift
Mode section, see “Algorithm Settings” on page 249.
10. Click Process.
The pitchbend is applied according to the specified settings.
Remove DC Offset
This function will remove any DC offset in the audio selec-
tion. A DC offset is when there is too large a DC (direct
current) component in the signal, sometimes visible as the
signal not being visually centered around the “zero level
axis”. DC offsets do not affect what you actually hear, but
they affect zero crossing detection and certain process
-
ing, and it is recommended that you remove them.
There are no parameters for this function. Note that you
can check for DC Offset in an audio clip using the Statis
-
tics function (see “Statistics” on page 259).
Resample
The Resample function can be used for changing the
length, tempo and pitch of an event.
The original sample rate of the event is listed in the dialog.
Resample the event to a higher or lower sample rate by ei
-
ther specifying a sample rate or by specifying the differ-
ence (as a percentage value) between the original sample
rate and the desired new one.
• Resampling to a higher sample rate will make the event
longer and cause the audio to play back at a slower speed
with a lower pitch.
• Resampling to a lower sample rate will make the event
shorter and cause the audio to play back at a faster speed
with a higher pitch.
• You can audition the result of the resampling by enter-
ing the desired value and clicking “Preview”.
The event will then be played back as it will sound after the resampling.
• When you are satisfied with the preview result, click
“Process” to close the dialog and apply the processing.
!
It is recommended that this function is applied to
complete audio clips, since the DC offset (if any) is
normally present throughout the entire recording.