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E-mu E 6400 EOS 4.0 manual.pdf
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O Try offsetting the pitch of a copied sample by a few cents, then combine it with the original for flange and chorus effects.

If the sample is stereo, a pop up dialog box will ask you to select left, right or both sides.

O Re-tuning pitch downward increases the sample size. Re-tuning pitch upwards decreases the sample size.

6 - Sample Edit

Digital Tuning

Digital Tuning

Digital Tuning allows you to change the pitch of a sound in order to splice or combine it with another sound of a different pitch. If a sample is slightly out of tune, it is usually better to fix the sample once and for all, rather than re-tuning the sample every time it is placed on the keyboard.

Filtering - Digital Tuning utilizes a low pass filter to prevent aliasing in the output. Filtering is automatically applied depending on the amount of tuning, but the three ranges allow you to have more control over the output.

Crunchy - Least amount of filtering - High frequency content retained, but sample may contain audible artifacts.

Smooth - Medium amount of lowpass filtering.

Creamy - Maximum amount of lowpass filtering - Some high frequencies will be removed.

v To Retune a Sample

1.Press the Sample Edit key. The LED illuminates and the main sample edit screen appears.

2.Select the sample that you want to tune using the Data Entry Control, INC/DEC keys, or the numeric keypad.

3.Press the Tools 1 function key (F1). Another row of function keys appears.

4.Press the DigTune function key (F3). The following screen appears.

5.Enter the tuning amount in cents using the Data Entry Control, or INC/DEC keys. The new sample size and new loop size will be calculated.

6.Press OK to retune the sample or Cancel to cancel the operation.

EOS 4.0 Software Manual 211

6 - Sample Edit

Sample Rate Convert

Sample Rate Convert

Sampling at a high sample rate provides better frequency response than sampling at a slower rate, but uses up more memory. If you need to reclaim some of that memory, and are willing to trade off sample frequency response, samples can be converted from a higher rate to a lower one. Use your ear to compare sounds at the two sample rates. If you can’t tell the difference, use the lower rate.

Sample Rate Conversion can be used for saving memory, increasing the upward transposition range of a sound, or exactly matching the sample rate to a multiple of the sound's frequency for perfect single cycle loop.

Set the built-in sample calculator to the note you want to loop and it automatically calculates the number of samples in a single cycle loop.

Filtering - Sample rate converters contain a low pass filter to prevent aliasing in the output. While the amount of filtering is automatically applied depending on the amount of change, three ranges of low pass filtering are provided to allow you more control over the output.

Crunchy - Least amount of filtering - High frequency content retained, but sample may contain audible artifacts.

Smooth - Medium amount of lowpass filtering.

Creamy - Maximum amount of lowpass filtering - Some high frequencies will be removed.

v To Change the Sample Rate

1.Press the Sample Edit key. The LED illuminates and the main sample edit screen appears.

2.Select the sample that you want to process using the Data Entry Control, INC/DEC keys, or the numeric keypad.

3.Press the Tools 1 function key (F2). Another row of function keys appears.

To use the mini sample 4. Press the SrCnv function key (F4). The following screen appears. calculator, simply move the

cursor down to the Key field and use the Data Entry Control to set the note. The calculator will display the number of samples in a single cycle loop at the selected sample rate. Select a sample rate where the single cycle loop has an integer value only.

5.Enter the new sample rate using the Data Entry Control, INC/DEC keys, or the numeric keypad. The new sample size and new loop size will be calculated.

212 E-MU Systems

O If you are not happy with the resulting conversion or want to compare before and after, press the Undo function key (F6).

6 - Sample Edit

Sample Calculator

Coarse/Fine - Fast forward through the values using Coarse, then switch to Fine for single digit editing.

6.Set the low pass filter to the desired range: Crunchy, Smooth or Creamy.

7.Press OK to change the sample rate or Cancel to cancel the operation.

Sample Calculator

Use the sample calculator to compute sample rates for perfect single cycle loops. If the single-cycle value shown is not an integer number, adjust the sample rate value so that it does become an integer number, then use the Sample Rate Convert function to convert the sample to the new rate.

v To Use the Sample Calculator:

1.Press the Sample Edit key. The LED illuminates and the main sample edit screen appears.

2.Select the sample that you want to process using the Data Entry Control, INC/DEC keys, or the numeric keypad.

3.Press the Tools 1 function key (F2). Another row of function keys appears.

4.Press the Calc function key (F6). The following screen appears

5.Select the known pitch of the sample using the keyboard, INC/DEC keys or the Data Entry Control.

6.Select the sample rate using the INC/DEC keys or the Data Entry Control. The number of samples for a single-cycle loop changes for each sample rate.

Coarse/Fine - Fast forward through the values using Coarse, then switch to Fine for single digit editing.

Frequency Indicator - Displays the fundamental frequency of the selected note.

7.Press OK or Cancel to return to the Sample Edit screen.

EOS 4.0 Software Manual 213

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