Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 15 Sampling Manual
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Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 15 Sampling Manual

Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 15 Sampling Manual

Sampling and sample editing
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Chapter 15
Sampling and Sample Editing
Setting Up For Sampling
Before you begin sampling, you'll need to connect the proper cables from your sample source
to your K2500. The cables and input jacks you use depend on the sample format you choose,
and the output configuration of your sample source.
Note that sampling requires the K2500 Sampling Option. Even without the Sampling Option,
however, you still have access to all of the sample editing features covered later in this chapter,
provided you have some sample RAM in your K2500. Samples can be loaded from disk, or
dumped into the K2500 via MIDI Sample Dump Standard (SDS) or over SCSI using the SMDI
protocol. See the Reference Guide for information on the MIDI Sample Dump Standard and
SMDI.
Cables and Input Jacks
If you're going to be sampling from an analog source, connect a standard 1/4-inch mono or
stereo cable (a typical guitar cable) from the output of your sample source to the 1/4-inch
analog input jack on the K2500. If you have a K2500R or K2500RS, use the 1/4-inch jacks if
you're sending an unbalanced signal, or the XLR jacks on the front panel if you're sending a
balanced signal. Although it is possible to send a balanced signal on a 1/4-inch cable, avoid
sending a balanced signal to the 1/4-inch jack when you're making stereo samples, since doing
so can cause phase cancellation in your signals.
Using a mono cable will send the signal to the K2500's left channel. If you use a mono cable, be
sure to set the Mode parameter on the Sample mode page to a value of Mono(L).
If you're using a digital sample source, you can use either a coaxial cable or an optical cable,
depending on the output format of your sample source. The coaxial input on the K2500 accepts
a standard male XLR fitting. The K2500's XLR input is configured as follows: Pin 1 is Common,
Pin 2 is High, and Pin 3 is Low. Depending on your sample source (a commercial DAT deck, for
example), you may need to use a cable (or a cable and adaptor) with an RCA connector on one
end and an XLR connector on the other. In this case, you should tie the Common wire to the
Low wire at the RCA end.
If your digital sample source has an optical output, connect your cable to the optical input jack
above the coaxial jack on the K2500's rear panel. This jack is covered by a small plug which is
easily removed. This plug should be kept in place whenever the optical input is not in use,
since dust or dirt can cause the optical input to malfunction.
Sampling and Sample Editing
Setting Up For Sampling
15-1

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Summary of Contents for Kurzweil K2500 - PERFORMANCE GUIDE REV F PART NUMBER 910251 CHAP 15

  • Page 1: Chapter 15 Sampling And Sample Editing

    Sampling and Sample Editing Setting Up For Sampling Chapter 15 Sampling and Sample Editing Setting Up For Sampling Before you begin sampling, you’ll need to connect the proper cables from your sample source to your K2500. The cables and input jacks you use depend on the sample format you choose, and the output configuration of your sample source.

  • Page 2: Entering The Sampler - Two Different Ways

    Sampling and Sample Editing Entering The Sampler - Two Different Ways Entering The Sampler - Two Different Ways There are two different methods of entering the Sampling page. Which method you choose depends on the type of sampling you are doing - how many samples you are making and if you need custom keymaps.
  • Page 3 Sampling and Sample Editing Sampling Analog Signals Input On the Sample mode page, you’ll set the conditions for your sample recording. Depending on the input type you select, a different set of parameters will appear on this page. When you’ve selected analog input, the page appears as in the diagram below.
  • Page 4 Sampling and Sample Editing Sampling Analog Signals the upper limit of audibility for most humans. The lower rates may be adequate for most sounds, since many sounds have little content above 15 KHz. Sounds with a great deal of high- frequency content, such as cymbals, should probably be sampled at the higher rates.
  • Page 5 Sampling and Sample Editing Sampling Analog Signals key note number +1, right input will trigger click key +2. The click key and click program can be accessed on the Song Mode MISC page. Threshold (Thresh) The Thresh parameter controls when the K2500 actually begins sampling incoming signals. If you set it to a value of Off, sampling begins immediately when you press the Record soft button.

  • Page 6: Recording Samples

    Sampling and Sample Editing Sampling Analog Signals Recording Samples Press the Record soft button to begin the sample recording process. If the Thresh parameter is set to a value of Off, recording will begin immediately, and will continue for the number of seconds indicated by the Time parameter.
  • Page 7 Sampling and Sample Editing Sampling Analog Signals The Preview Soft Button When you’ve finished taking a sample, you can press the Preview soft button to automatically create a keymap and program using the new sample. It uses the settings for the Default program 199 as a template.
  • Page 8 Sampling and Sample Editing Sampling the K2500’s Output Sampling the K2500’s Output You can sample the K2500’s own sounds when in Analog sampling mode. To do so, set the Src parameter on the Sample mode page to a value of Int. Then, just press the Record soft button and start playing.
  • Page 9 Sampling and Sample Editing Using the Sampler to Create Overdubs Play C4. This "note" will be recorded by the Step editor on the overdub track. Press Stop, followed by the Done soft button to leave the Step editor. 10. Now press the EVENT soft button to enter the Event editor. Move the C4 note event from 1:1.000 to 1:1.101 by entering "11101"...

  • Page 10: Sampling Digital Signals

    Sampling and Sample Editing Sampling Digital Signals Sampling Digital Signals The process for sampling through either of the digital inputs is essentially the same as that for sampling analog signals, although there are a few additional parameters associated with digital sampling formats.

  • Page 11: Using The Digital Outputs

    Sampling and Sample Editing Using the Digital Outputs The K2500 may not display the rate when you’re using a rate other than the frequently-used rates of 32, 44.1 or 48 KHz. This is normal, and although the rate may not be displayed, the K2500 will still lock on to it.

  • Page 12: Editing Samples

    Sampling and Sample Editing Editing Samples Editing Samples Most of the functions within the Sample Editor follow a general pattern. There are two ways to enter the Sample Editor. If you start from Master mode and press the Sample soft button, then select a sample and press EDIT, you can hear the isolated sample.
  • Page 13 Sampling and Sample Editing Editing Samples Zoom- and Zoom+ These buttons are active only when you’re viewing the TRIM and LOOP pages. They increase or decrease the resolution of the waveform display, enabling you to see a larger or smaller segment of the waveform of the currently selected sample.
  • Page 14 Sampling and Sample Editing Editing Samples Units With the Units soft button you can change the units used to display the locations of the current sample’s Start, Alt , Loop and End points. The default setting displays these points in seconds, that is, the number of seconds from the physical start of the sample.
  • Page 15 Sampling and Sample Editing Editing Samples Miscellaneous (MISC) On the MISC page, you’ll set several parameters that affect the behavior of the current sample. These parameters affect the entire sample. The diagram of the MISC page shows a ROM sample, and since the DSP functions cannot be applied to ROM samples, the DSP soft button is not available.
  • Page 16 Sampling and Sample Editing Editing Samples Alternative Start Volume Adjust (AltVolAdjust) This parameter sets the amplitude of the sample when the alternative start is used. See Chapter 6 for a discussion of AltSwitch. Decay Rate Use this parameter to specify how long the sample will take to decay (fade) to zero amplitude when a note is sustained, either by holding the key (or other note trigger), or with the sustain pedal.
  • Page 17 Sampling and Sample Editing Editing Samples Sample Size and Sample Rate These are not editing parameters. They’re put on this page to give you a convenient place to check the size in Kilobytes of the current sample, and the rate at which it was sampled. TRIM The TRIM page lets you set the Start, Alt, Loop, and End points of the current sample.
  • Page 18 Sampling and Sample Editing Editing Samples will be used when the Mod Wheel—or whatever control source you have set to send MWheel— is above its halfway point).The Alt can be set before, after, or at the same point as the Start or end.
  • Page 19 Sampling and Sample Editing Editing Samples To the left of the dividing bar you see the same segment of the current sample that you see on the TRIM page. The four vertical lines representing the Start (S), Alt (A), Loop (L), and End (E) points are visible.
  • Page 20 Sampling and Sample Editing Editing Samples F:Normalize||Start:0.049||||End:6.000||| |||||||||||||||||||||||||||||||||||||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| All of the DSP functions operate on a segment of the current sample that you select before executing the function. In most cases, you’ll use the Start and End parameters to define the start position and end position of the segment you want to modify.

  • Page 21: The Soft Buttons On The Dsp Page

    Sampling and Sample Editing Editing Samples You can use the Copy soft button on the Samp2 page to copy the selected segment to a buffer, then paste the segment into Sample 1 when you return to the DSP page. The Soft Buttons on the DSP Page This button will cut (remove) the currently selected sample segment from the currently selected sample, and store it in a buffer.

  • Page 22: Dsp Functions

    Sampling and Sample Editing Editing Samples DSP Functions Once you’ve entered the Sample Editor, press the DSP soft button to gain access to the DSP functions. The DSP function parameter will be highlighted, allowing you to scroll through the list of functions with the Alpha Wheel or Plus/Minus buttons. Remember that the DSP functions operate only on RAM samples.
  • Page 23 Sampling and Sample Editing Editing Samples End positions as the Start (S) and End (E) points (as set on the TRIM or LOOP page). In fact, you can go to either of these pages to readjust the S and E points if you want to include more of the sample.
  • Page 24 Sampling and Sample Editing Editing Samples 5 Delete F:Delete|||||Start:2.477||||End:5.037||| Xfade:0.000|||||Curve:LIN||||||||||||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| Unlike the Clear function, this will erase the samples within the selected range and shorten the sample, like cutting a section out of a tape and splicing the ends. If you want to silence a segment of the sample without shortening it, use the Clear function.
  • Page 25 Sampling and Sample Editing Editing Samples values are LIN, EXP, COS, EQL, and MIX. These curves are described at the end of the section on DSP functions. Like the crossfade parameter in the Delete function, this crossfade will also shorten the sample. The maximum crossfade length is half the length of the reversed segment.
  • Page 26 Sampling and Sample Editing Editing Samples 9 Mix F:Mix||||||||Start:0.000||||End:6.000||| In:0.000|||Out:0.000|||Vol:0dB|||Cur:LIN VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| With this function you select a segment from Sample 2, and merge it with the selected segment from Sample 1, beginning at the point you set with the Start parameter. This is equivalent to mixing two audio signals through a mixing board.
  • Page 27 Sampling and Sample Editing Editing Samples Use this function to insert the selected segment from Sample 2 into Sample 1. This is like splicing a section of tape into an existing tape. This differs from the Mix function, which merges the two samples into one.
  • Page 28 Sampling and Sample Editing Editing Samples Similar to Volume Ramp, this function applies a curve that scales the amplitude of the selected sample segment. Unlike Volume Ramp, however, you simply select a start and end point, and a single level. The amount of cut or boost starts at 0dB at the start point of the ramp, and reaches the level you specify when it reaches the end point of the ramp.
  • Page 29 Sampling and Sample Editing Editing Samples 14 Time Warp F:TimeWarp|||Start:0.000||||End:6.000||| NewLen:0.000||||||||||||||||Quick:0||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| With this function you can change the length of the selected sample segment without affecting the pitch. This function applies sophisticated routines that lengthen or shorten the selected sample segment to play it back over a different time period, modifying the playback rate so the pitch remains unchanged.
  • Page 30 Sampling and Sample Editing Editing Samples The Quick parameter lets you select one of three shift routines. Use Quick 0 to audition your sample, then use Quick 1 or 2 for the final take. Quick 2 takes longer to process, but gives you better results.
  • Page 31 Sampling and Sample Editing Editing Samples If the Of parameter is set to a value of 0, the Sample 2 segment will be mixed in on every beat, regardless of the setting for the Beat parameter. If the Beat parameter is set to a negative value, the segment of Sample 2 that’s mixed in will be moved forward in time by the length of one beat each time it’s mixed in;...
  • Page 32 Sampling and Sample Editing Editing Samples 18 Mix Echo F:MixEcho||||Start:0.000||||End:2.048||| Tempo:120|Start:0||#:4||VolAdj:0dB|||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| This function operates much like Mix Beat, but instead of the Beat and Of parameters, you have Start and “#” parameters. The Start parameter sets the beat at which the selected Sample 2 segment begins being mixed with the selected Sample 1 segment.

  • Page 33: Crossfade And Volume Adjust Curves

    Sampling and Sample Editing Editing Samples 20 Crossfade Loop (XfadeLoop) F:XfadeLoop||L:0.000||||||||E:2.048||||| Xfade:0.000|||||Curve:EQL||||||||||||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||Go||||Done| The Crossfade Loop function lets you create smoother loops by crossfading the beginning segment of the loop with a segment of equal length at the end of the loop. These segments can be defined by the Loop and End parameters as set on the TRIM or LOOP page for the current sample, or with the Loop and End points on the XfadeLoop page.

  • Page 34: Reading Samples

    When you return to Disk mode, this file will be selected. Once you’ve loaded a sample or program file, you can save it as a Kurzweil object. You’ll find it it can be loaded and backed up much faster as a Kurzweil object than in its original format.
  • Page 35 Sampling and Sample Editing Reading Samples the sample information. Programs are identified by the suffix “.p,” and are stored in program RAM. Samples have the suffix “.s,” and are stored in sample RAM. You can press Cancel to return to the Disk mode page without loading the volume. If you load sample objects, you’ll see the following prompt: “Create preview program/ keymap?”...

  • Page 36: The Keymap Editor

    Sampling and Sample Editing The Keymap Editor The Keymap Editor The Keymap Editor lets you customize the K2500’s factory preset keymaps and save them to RAM. You can also build your own keymaps from scratch. Keymaps are an integral part of every layer of a program. Each keymap contains a set of parameters determining which sample(s) the K2500 will play when you trigger a note.
  • Page 37 Sampling and Sample Editing The Keymap Editor You can also create multi-velocity keymaps—that is, keymaps that will play different timbres depending on the attack velocities of your Note On events. The program Dyno E Piano, for example, uses a keymap with two velocity ranges. Each key range in a multi-velocity keymap contains two or three distinct sample roots that the K2500 chooses between, according to the attack velocity of the note.

  • Page 38: The Soft Buttons In The Keymap Editor

    Sampling and Sample Editing The Keymap Editor The Soft Buttons in the Keymap Editor The first four soft buttons execute the basic library functions, enabling you to name, save, or delete the current keymap, or dump it via a MIDI SysEx message. New Range (NewRng) The NewRng button lets you define a range to edit, whether it’s to assign a different sample, or to adjust the pitch or volume.
  • Page 39 Sampling and Sample Editing The Keymap Editor Low Key (Lo), High Key (Hi) With these parameters you can use any of the data entry methods to change the low and high notes of the current range. These parameters let you extend or shorten the width of a key range. You can extend a key range to the full capacity of the K2500 (C 0 to G 10).
  • Page 40 Sampling and Sample Editing The Keymap Editor Velocity Crossover (VelCrossover) This parameter applies only when the keymap assigned to the currently selected program is a multi-velocity keymap. The name of the keymap usually indicates whether it’s of the multi- velocity variety (2 Dual Elec Piano, for example). Multi-velocity keymaps have a predetermined number of velocity levels, each of which can be assigned a different sample.

  • Page 41: Building A Keymap

    Sampling and Sample Editing Building a Keymap Building a Keymap If you used the Keymap Editor to enter the sampling page, then just press Exit from the Sampling page and you are ready to begin creating a keymap. If you entered the Sampling page from from Master Mode, do the following.

  • Page 42: Using The Analog Inputs To Trigger Samples

    Sampling and Sample Editing Using the Analog Inputs to Trigger Samples Using the Analog Inputs to Trigger Samples The analog sampling inputs double as one- or two-channel trigger inputs. This allows audio signals from external sources (such as microphones and tape recorders) to trigger internal samples.

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