User manual

259
Audio processing and functions
Statistics
The Statistics function on the Audio menu analyzes the
selected audio (events, clips or range selections) and dis-
plays a window with the following information:
About time stretch and pitch shift
algorithms
In Cubase, time stretching and pitch shifting algorithms
are used for numerous operations (e. g. the Time Stretch
and Pitch Shift offline processes, in the Sample Editor, or
by the Flatten function). Depending on the feature, some
or all of the following algorithm presets are available.
élastique
The élastique algorithm is suited for both polyphonic and
monophonic material. The algorithm has three modes, and
there are three presets for each mode. The following
modes are available:
• élastique Pro – This mode offers the best audio quality, with-
out formant preservation.
• élastique Pro Formant – This is the same as the Pro mode, but
including formant preservation.
• élastique efficient – This mode requires less computing pow-
ers, but has a lower audio quality than the Pro modes.
These modes are available with the following variants:
• Time – Timing accuracy is favored over pitch accuracy.
• Pitch – Pitch accuracy is favored over timing accuracy.
• Tape – The pitch shift is locked to the time stretch (as when
playing back a tape with varying speed). Stretching the audio
material to a longer duration automatically decreases its pitch.
This variant has no effect when used in combination with
event transpose or the transpose track.
MPEX
MPEX is an alternative high-quality algorithm. You can
choose between the following quality settings:
Item Description
Min. Sample
Value
The lowest sample value in the selection, as a value be-
tween -1 and 1 and in dB.
Max. Sample
Value
The highest sample value in the selection, as a value be-
tween -1 and 1 and in dB.
Peak
Amplitude
The largest sample value (in absolute numbers) in the se-
lection, in dB.
DC Offset The amount of DC Offset (see “Remove DC Offset” on
page 251) in the selection, as a percentage and in dB.
Estimated
Resolution
Even though an audio file is in 16 or 24 bits, it may have
been converted from a lower resolution. The Estimated
Resolution value makes an educated guess about the ac
-
tual audio resolution, by computing the smallest level dif-
ference between two samples.
Estimated
Pitch
The estimated pitch of the audio selection.
Sample Rate The sample rate of the audio selection.
Min. RMS
Power
The lowest loudness (RMS) measured in the selection.
Max. RMS
Power
The highest loudness (RMS) measured in the selection.
Average The average loudness over the whole selection.
Option Description
MPEX – Pre-
view Quality
Use this mode only for preview purposes.
MPEX – Mix
Fast
This mode is a very fast mode for preview. This works best
with composite music signals (mono or stereo material).
MPEX – Solo
Fast
Use this mode for single instruments (monophonic mate-
rial) and voice.
MPEX – Solo
Musical
Same as above but higher quality.
MPEX – Poly
Fast
Use this for processing monophonic and polyphonic ma-
terial. This is the fastest setting that gives still very good
results. You can use this for drum loops, mixes, chords.