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21.
A new offline Timescale edit op was added
The ability to shrink or expand the length of an audio event has become known as timescaling . In a
nutshell, the edit op can shrink or expand an audio event to fit a selection or time value.
To see where it is and how to use it, navigate to the Waveform tab on the Track screen. Select a track
that has audio data on it, and drag a selection using the Region tool. From the Edit Operations menu,
select Time Scale.
Please read the description of all the parameters in this section. A summing up description (with
examples) will come at the end. A description of the controls and what they do:
Start Time
: - This parameter determines the very start of the selection. The value corresponds to
the very beginning of the selection you made when you clicked and dragged the mouse.
Old End Time
—
this displays the end value of your current selection. It is called old because it
will change once you complete the timescaling process.
New End Time
—
this displays the value the end of the selection will have after the timescaling
process finishes. It is important to note that the Start Time never changes, as the time
compression/expansion affects the overall length of the selection - and thus where it ends —
instead
of where it begins.
Old Duration —
the total length of the selection is calculated and displayed here. You can enter
the start time first and then the duration if you d like, and the SX-1 will enter the end time for you.
New Duration —
the total length of the selection
after processing
is calculated and displayed here.
As is the case with all of these widgets, updating one field will cause all of the rest of the fields to
update as well. This means that entering a value for New Duration will cause the other fields to be
recalculated by the Edit Op.
Ratio Slider —
this allows you to manually choose the ratio that the Edit Op will choose to
compress or expand the audio event. This value will automatically be calculated by entering start
and end times (if you are planning on using bars and beats-based durations, it is probably a good
idea to let the Edit Op choose the ratios based upon your desired lengths, not by hand ).
Ratio Edit Box —
this box exists so that you can manually enter the desired ratio, if the slider is
not accurate enough for your purposes.
Quality —
This menu has four choices —
Fast, Moderate, Normal, and Ultra —
in that order. The
closer you get to Ultra, the longer it takes to do the compression/expansion, and the better the
resulting audio file sounds. There is always a tradeoff between speed and quality in digital
conversion.
