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6 - Sample Edit
Paste Section
Paste Section
Portions of a sample can be cut, copied, and pasted to other samples, or the samples from which they came. Paste takes the clipboard contents and either inserts them in a sample at a specified point, or mixes them with a sample starting at a specified point.
v To Paste a Section:
1.Press the Sample Edit key. The LED illuminates and the main sample edit screen appears.
2.Select the sample that you want to paste the clipboard contents into using the Data Entry Control, INC/DEC keys, or the numeric keypad.
3.Press the Utils function key (F1). A second row of function keys appears.
If the sample is stereo, a 4. Press the Paste function key (F3). If the sample is stereo, you will first be
pop up dialog box will ask you |
asked to select the right side, left side or both. The following screen |
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to select left, right or both sides. |
appears. |
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Waveform Display |
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Start |
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Location |
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Vertical |
Zoom |
Zoom In |
Scale |
Out |
at Start |
Magnifier |
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Point |
A visual display of the waveform appears with several controls.
•Start Location:Selects the starting location where the clipboard sample will be pasted.
•Magnification: Adjusts the vertical scale for 1x, 2x, 4x, or 8x magnification. Pressing the button repeatedly rotates through the 4 options.
•Zoom Start:Magnifies the waveform to display finer detail around the Start point.
•Zoom Out:Reverses the effect of Zoom Start.
5.Specify the start point for the clipboard sample to be pasted into, then press OK. The following screen appears.
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6 - Sample Edit
Paste Section
6.Choose whether to insert or mix the clipboard contents at the point selected in step 5.
Insert opens up a space in the sample into which the clipboard contents fit. Equal Power Mix and Linear Mix combine the clipboard contents with existing samples, starting at the point selected in step three. Normally, you will always use Equal Power. Use Linear Mix when the signals are very similar or when Equal Power causes a gain in amplitude.
7.Set the Crossfade Size and Type.
OThe left and right cursor • Equal Power: This is a weighted crossfade that produces no apparent
keys will change the start and |
level shift. You will normally use this mode. |
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end points so that they |
• Linear: This provides a straight mathematical crossfade. |
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automatically fall on positive |
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zero-crossing points in the |
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waveform. |
8. If you chose Linear or Equal Power Mix in step 6, another field in the |
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display appears. |
9.You have the option to select the level of the clipboard contents to be mixed (Source Amount). 100% indicates a replacement. Refer to the following diagrams.
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Paste Offset |
Destination Sample |
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Paste Offset |
This section of |
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the sample will |
PASTE |
be replaced |
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0.00 Sec. Crossfade |
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EOS 4.0 Software Manual 203
6 - Sample Edit
Truncation
Mode: Mix |
Source Amount = 100% |
After the start point, a section of the destination is replaced with the clipboard contents.
Crossfade Size |
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Mode: Xfade Mix |
Source Amount = 100% |
The clipboard contents will be gradually mixed into the destination sample and will replace the destination when the fade reaches 100%.
Crossfade Size |
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Mode: Xfade Mix |
Source Amount = 50% |
The clipboard contents will be gradually mixed into the destination sample and reach a maximum of 50-50 mix.
10.Press OK to paste the section or Cancel to return to the Sample Edit screen.
Truncation
Truncation shortens a sample's length by trimming off individual samples from the beginning and/or end. Truncation is most often used to remove unneeded portions of a sample to conserve memory, but it can also be used to change instrument characteristics such as removing the attack from a plucked string note or isolating a particular section of a sample.
v To Truncate a Sample:
1.Press the Sample Edit key. The LED illuminates and the sample edit screen appears. Select the sample.
If the sample is stereo, a 2. Select the sample that you want to paste the clipboard contents into
pop up dialog box will ask you |
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using the Data Entry Control, INC/DEC keys, or the numeric keypad. |
to select left, right or both sides. |
3. |
Press the Utils function key (F1). A second row of function keys |
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appears. |
4.Press the Trunc function key. The Truncation Section screen appears. (If the sample is stereo, you will first be asked to select the right side, left side or both.)
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6 - Sample Edit
Taper
O Holding down the Enter key while turning the Data Entry Control allows “fine tuning” of the value by one number per click.
O If you aren’t happy with the resulting truncation or want to compare before and after, press the Undo function key (F6).
O Taper the ends of sounds before splicing to avoid clicks or pops at the splice point.
Insure that a sample starts at 0 and that no click happens at note on by using a very short taper (-96 to 0) on the attack.
Waveform Display
Editing
Fields
Vertical |
Zoom |
Zoom In |
Zoom In |
Scale |
Out |
at Start |
at End |
Magnifier |
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Point |
Point |
•Editing Fields: Move the cursor to the desired field to truncate the Start and End points of the sample.
•Magnification: Adjusts the vertical scale for 1x, 2x, 4x, or 8x magnification. Pressing the button repeatedly rotates through the 4 options.
•Zoom Start: Magnifies the sample to display finer detail around the Start point.
•Zoom End: Magnifies the sample to display finer detail around the End point.
•Zoom Out:Reverses the effect of Zoom Start and Zoom End.
5.Specify the start and end points for the sample truncation using the Data Entry Control, left/right cursor keys, INC/DEC keys or the numeric keypad.
Taper
Taper lets you create an artificial decay on percussion samples where the original decay is absent, create an artificial fast attack (such as bowed violin with a slow attack), or clean up background noise when editing dialog.
v To Taper a Sample:
1.Press the Sample Edit key. The LED illuminates and the sample edit screen appears. Select the sample.
2.Select the sample that you want to taper using the Data Entry Control, INC/DEC keys, or the numeric keypad.
3.Press the Utils function key (F1). A second row of function keys appears.
4.Press the Taper function key. The Taper Section screen appears. (If the sample is stereo, you will first be asked to select the right side, left side or both.)
EOS 4.0 Software Manual 205
6 - Sample Edit
Taper
The Taper display is identical to the display in Truncate. See Truncate for a full description of the controls.
O The left and right cursor buttons will change the start and end points so that they fall on positive zero-crossing points in the waveform.
5.Specify the Start and End points for the portion of the sample to be tapered using the Data Entry Control, left/right cursor keys, INC/DEC keys or the numeric keypad.
6.Press OK to continue on to the next page of options or Cancel to cancel the operation.
Several more tapering parameters are shown.
•Start Amount:This is the amount of attenuation or gain applied at the start of the selected section. Variable from -96 dB to +96 dB.
•End Amount:This is the amount of attenuation or gain applied at the end of the selected section. Variable from -96 dB to +96 dB.
•Type: Selects the type of curve: Linear, Exponential 1, Exponential 2. Exponential 3.
•Truncate: (After Taper) Discards any information after the taper end point in order to conserve memory.
7.Specify the taper parameters using the Data Entry Control, or the INC/ DEC keys.
8.Press OK to taper the sample or Cancel to cancel the operation.
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6 - Sample Edit
Loop
Tools 1
This submodule contains the basic digital processing tools listed below.
Looping: Looping repeats a section of the sample continuously as long as the key is held. This allows a short sample to sustain indefinitely.
Digital Tuning: Digitally retunes a sample within a range of ±1 octave.
Sample Rate Convert: Converts the sample to any sample rate between 7000 Hz and 200000 Hz.
Sample Calculator:.A handy utility to help you calculate the sample rates needed for perfect single-cycle loops.
Loop
If you have a difficult time finding good loop points, the Auto Correlation function can assist you. If Auto Correlation doesn’t produce acceptable results, the beginning and end of a loop can be crossfaded to help mask loop discontinuities. For more information, see “About Looping” at the beginning of this section.
•Adjust the zero crossing threshold according to the type of wave you are looping. A setting of -96 dB is most sensitive and can be used for finding the start point of a sound. Settings closer to -30 dB are less sensitive and suited for finding zero-crossings in complex waves. See Zero Crossing Threshold on page 88 for more information.
v To Set the Loop Points
1.Press the Sample Edit key. The LED illuminates and the main sample edit screen appears.
2.Select the sample that you want to loop using the Data Entry Control, INC/DEC keys, or the numeric keypad.
EOS 4.0 Software Manual 207
6 - Sample Edit
Loop
O Looping is an art which takes a bit of practice to learn. Auto Correlate works best when you have already found a fairly good loop point by ear. Several different types of tools are provided to help you loop almost any sound.
3.Press the Tools 1 function key (F2). Another row of function keys appears.
4.Press the Loop function key (F1). The following screen appears.
Waveform Display
Editing
Fields
Fix |
Zoom Zoom In |
Auto |
Loop Size |
Out |
Correlate |
•Editing Fields: Move the cursor to the desired field to change the Start, End or Size of the loop. The Loop Start Loop End and Loop Size parameters can be independently changed. Press the Fix Size button to keep the loop size constant.
Fix Size Button: When the box is checked, the Loop Size parameter is locked at the current value. This is handy when you have found the right size loop and are looking for a better start point.
Fix Size is very useful for creating groove loops and single cycle loops.
•Auto Correlate: Analyzes the waveform to find likely loop points. With Fix Size On, the Start Point of the Loop is adjusted.
With Fix Size Off, the End Point is adjusted.
•Zoom In: Magnifies the waveform to display fine detail and brings up the loop window.
•Zoom Out: Reverses the effect of Zoom In and displays the entire sample.
When you Zoom In on the waveform, the Loop Window appears. The loop window magnifies the splice point of the loop as shown by the bracketed area in the diagrams below.
The line in the center of the magnified loop window shows the exact splice point of the loop. You can use the left and right cursor keys to select zerocrossings for the loop start.
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