Kurzweil K2600 - MUSICIANS GUIDE REV A PART NUMBER 910330 CHAP 14 Sampling Manual
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Kurzweil K2600 - MUSICIANS GUIDE REV A PART NUMBER 910330 CHAP 14 Sampling Manual

Kurzweil K2600 - MUSICIANS GUIDE REV A PART NUMBER 910330 CHAP 14 Sampling Manual

Sampling and sample editing
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Chapter 14
Sampling and Sample Editing
Setting Up For Sampling
Before you begin sampling, youÕll need to connect the proper cables from your sample source to
your K2600. The cables and input jacks you use depend on the sample format you choose, and
the output conÞguration of your sample source.
Note that sampling requires the K2600 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 K2600. Samples can be loaded from disk, or
dumped into the K2600 via MIDI Sample Dump Standard (SDS) or over SCSI using the SMDI
protocol. See the MusicianÕs Reference for information on the MIDI Sample Dump Standard and
SMDI. Also see SIMM SpeciÞcations on page 9-2 of the MusicianÕs Reference for information about
sample RAM requirements.
Cables and Input Jacks
If youÕre going to be sampling from an analog source, you have two options:
¥
For unbalanced signals, use a 1/4-inch mono or stereo cable connected to the 1/4-inch (HiZ)
stereo analog input jack
¥
For balanced signals, use balanced XLR (cannon) cables connected to one or both of the XLR
mono analog inputs
Although itÕs possible to send a balanced signal on a 1/4-inch cable, avoid sending a balanced
signal to the 1/4-inch jack when youÕre making stereo samples, since doing so can cause phase
cancellation in your signals.
Using a mono cable sends the signal to the K2600Õs left channel. If you use a mono cable, be sure
to set the Mode parameter on the SampleMode page to a value of Mono(L) .
If youÕre 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 K2600 accepts
a standard male XLR Þtting. The K2600Õs XLR input is conÞgured 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 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. Glyph Technologies (telephone 1-800-335-0345) carries an XLR-to-RCA cable that works
with the K2600.
If your digital sample source has an optical output, connect your cable to the optical input jack
above the coaxial jack on the K2600Õs 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
14-1

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  • Page 1: Chapter 14 Sampling And Sample Editing

    Sampling and Sample Editing Setting Up For Sampling Chapter 14 Sampling and Sample Editing Setting Up For Sampling Before you begin sampling, youÕll need to connect the proper cables from your sample source to your K2600. The cables and input jacks you use depend on the sample format you choose, and the output conÞguration of your sample source.

  • Page 2: Entering The Sampler

    Sampling and Sample Editing Entering The Sampler Entering The Sampler There are two different ways to get to the SampleMode page. The method you choose depends on the type of sampling you are doingÑhow many samples you are making and whether you need custom keymaps.
  • Page 3 Sampling and Sample Editing Sampling Analog Signals Input On the SampleMode page, youÕll 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 youÕve selected analog input, the page appears as in the diagram below. The differences between analog and digital sampling are discussed in the section called Sampling Digital Signals on page 14-8.
  • Page 4 Sampling and Sample Editing Sampling Analog Signals Another consideration in selecting sample rate is the K2600Õs transposition range during sample playback. The K2600 transposes samples by changing the sample playback rate; the higher the playback rate, the higher the pitch of the sample. The K2600 can achieve a maximum sample playback rate of 96 KHz.
  • Page 5 Sampling and Sample Editing Sampling Analog Signals ThereÕs also Live mode, which lets you connect any audio source to any of the K2600Õs sampling inputs (assuming you have the Sampling Option), and use that input just like a regular VAST program (the input goes through a DDP algorithm, then through KDFX, then to the audio outputs).

  • 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 countdown reaches zero, The Program, Setup, MIDI, and Master-mode LEDs will ßash three times. If you have the Thresh parameter set to a value of Off, sample recording begins immediately after the LEDs ßash. If you have the Thresh parameter set to a dB value, sampling begins when the incoming signal exceeds the Thresh level.

  • Page 8: Sampling Digital Signals

    Sampling and Sample Editing Sampling the K2600’s Output so all keys play one of the samples. The number of keys playing each sample depends on the total number of sample roots youÕre previewing. Tuned layouts are useful for previewing pitched samples. Pressing No at the ÒTuned Keymap LayoutÓ...
  • Page 9 If you have the digital I/O option, Src has another value: Return (Rtn). This enables you to sample a two-channel return from KDS Out A (this requires a Kurzweil DMTi or other device thatÕs compatible with KDS digital format).

  • Page 10: 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 11 Sampling and Sample Editing Editing Samples Zoom- and Zoom+ These buttons are active only when youÕre 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 12 Sampling and Sample Editing Editing Samples Join You can create sample objects that contain multiple sample roots. Many of the ROM samples are like thisÑmultiple samples stored in memory as a single sample object. Joining samples is a great way to cut down on the number of IDs that you use for your samples, since joined samples all use the same object ID.

  • Page 13: The Miscellaneous (Misc) Page

    Sampling and Sample Editing Editing Samples least one more point. If you select the Alt parameter and press the Link soft button, the Start and Alt points will be linked. Now if you move the Start point to 1.0 seconds, the Alt point will automatically move to 1.5 seconds, preserving the half-second interval between Start and Alt.
  • Page 14 Sampling and Sample Editing Editing Samples The default values shown in this diagram reßect the settings for the Default program 199. EditRomSample:MISC|||||||||||||||||||||| RootKeyNum||:C|4||||LoopSwitch:On||||||| PitchAdjust|:1ct||||Playback||:Normal||| VolumeAdjust:0.0dB||AltSense||:Norm||||| AltVolAdjust:0.0dB||IgnRelease:Off|||||| DecayRate|||:950dB/|SampleSize=0Kb|||||| ReleaseRate|:950dB/|SampleRate=1000Hz||| <more|||MISC|||TRIM|||LOOP|||Link||more> Parameter Range of Values Root Key Number C -1 to G 9 Pitch Adjust Variable (depends on sample rate) Volume Adjust...
  • Page 15 DecayRate operates in two different ways, depending on the nature of the sample. If itÕs a ROM sample or a Kurzweil-format RAM sample, DecayRate takes effect in the loop portion of the sample, after all the attack stages of the amplitude envelope are complete. For non-Kurzweil RAM samples, DecayRate takes effect as soon as the sample starts, regardless of the length of the attack stages.
  • Page 16 Sampling and Sample Editing Editing Samples Sample Size and Sample Rate These are not editing parameters. TheyÕre 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. The TRIM Page The TRIM page lets you set the Start, Alt, Loop, and End points of the current sample.
  • Page 17 Sampling and Sample Editing Editing Samples is above its halfway point.) The Alt can be set before, after, or at the same point as the Start or End. If you set the Alt after the End, you can extend the play of looped samples. Normally, looped samples will play through to the End, then will loop back to the Loop point, and continue looping like this until the note is released, when they go into their normal release.
  • Page 18 Sampling and Sample Editing Editing Samples Loop, and End parameters are different.) To the right of the dividing bar you see the entire loop segment of the sample. In the center of the loop segment is a dotted vertical bar that represents the loop transition pointÑthat is, the point at which the sample reaches its End point and loops back to the Loop point.

  • Page 19: The Dsp Page (Ram Samples Only)

    Sampling and Sample Editing Editing Samples The DSP Page (RAM samples only) Select the DSP page with the DSP soft button. This gives you access to a long list of nonreal-time DSP functions, with which you can modify your RAM samples. The Þrst time you select a DSP function, youÕll see the Normalize function, shown below.

  • Page 20: The Soft Buttons On The Dsp Page

    Sampling and Sample Editing Editing Samples deÞned, press the OK soft button to return to the DSP page where you can continue your editing. Once youÕve selected a sample on the Samp2 page, it remains selected until you return to the Samp2 page and select another sample.

  • Page 21: Dsp Functions

    Sampling and Sample Editing Editing Samples the changes. You can audition your changes and decide whether to keep them, then press Yes or Done Press the Done soft button to return to the previously selected Sample-editor page when youÕre Þnished with the DSP functions. DSP Functions Once youÕve entered the Sample Editor, press the DSP soft button to gain access to the DSP functions.
  • Page 22 Sampling and Sample Editing Editing Samples The Truncate function will automatically reset the Start (S) and End (E) points of the sample. This can be quicker than trimming the sample manually on the TRIM page. Use the Start and End parameters to select a speciÞc sample range. Set the Thresh parameter from -96 to 0dB to set the noise ßoor.
  • Page 23 Sampling and Sample Editing Editing Samples The result of this function is like erasing a section of recording tape. Use it to create sections of silence without changing the overall length of the sample. If you want to completely remove a segment and shorten the sample, you can do it with the Delete function.
  • Page 24 Sampling and Sample Editing Editing Samples 6 Reverse F:Reverse||||Start:0.000||||End:6.000||| Xfade:0.000|||||Curve:LIN||||||||||||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| With this function you can reverse the order of the individual samples between the start and end positions you set. The Xfade parameter lets you apply a crossfade to the start and end of the reversed segment.
  • Page 25 Sampling and Sample Editing Editing Samples 8 Insert Zero F:InsertZero|Start:0.000||||End:6.000||| Length:0.000|||||||||||||||||||||||||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| This function will insert a period of silence of any length into the selected sample range. This function is equivalent to splicing a section of blank tape into an existing segment of recorded tape.
  • Page 26 Sampling and Sample Editing Editing Samples Mixing Samples, Step-by-step First, use the Start parameter of Sample 1 to set the point at which the mix will begin. Then press the Samp2 soft button, and a page will appear enabling you to view and audition the list of RAM samples.
  • Page 27 Sampling and Sample Editing Editing Samples 11 Volume Ramp F:VolRamp||||Start:0.000||||End:6.000||| Curve:LIN|||StartLvl:0dB|||||EndLvl:0dB| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| This function lets you apply a ramp to the volume of the selected sample range. The Start Level and End Level parameters let you set the amount of cut (negative value) or boost (positive value) at the start and end points of the segment.
  • Page 28 Sampling and Sample Editing Editing Samples 13 Resample F:Resample|||Start:0.000||||End:6.000||| NewRate:20000Hz|||Quick:0||||||||||||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| **************************************** |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |Cut||||Copy||Paste||Samp2|||Go||||Done| Use this function to change the sample rate of the samples in the selected segment. This is convenient for converting samples to new rates matching those of other samples to be mixed with or inserted into.
  • Page 29 Sampling and Sample Editing Editing Samples function is in progress, the display will indicate the percentage of individual sample segments that have been processed. The Quick parameter lets you select one of three warping routines. Use Quick 0 to audition your new sample, then use Quick 1 or 2 for your Þnal take.
  • Page 30 Sampling and Sample Editing Editing Samples interesting and unusual effects by mixing different types of samples, especially if you set the Tempo parameter to a high value. The Tempo parameter sets the interval between repetitions in beats per minute. The Of parameter establishes the number of beats per measure, and the Beat parameter sets which beat gets mixed.
  • Page 31 Sampling and Sample Editing Editing Samples parameter to 4, then Sample 2 will play on the Þrst, Þfth, and ninth beat of your six-second Sample 1 segment. The result will look something like the diagram below. F:MixBeat||||Start:0.000||||End:6.000||| Tempo:120|Beat:1||Of:4||VolAdj:0dB|||||| VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV -6dB>||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| |||||||||||||||||||||||||||||||||||||||| ||||||||||||||||||||||||||||||||||||||||...
  • 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 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 deÞned 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: Crossfade And Volume Adjust Curves

    Sampling and Sample Editing The Keymap Editor HereÕs an example. Suppose you set Thresh, Comp, and Time as shown in the preceding diagram. Beginning from the Start point, when the signal Þrst reaches the threshold, the Dynamics function begins compressing the signal, attenuating every point above the threshold by 50%.
  • Page 35 Sampling and Sample Editing The Keymap Editor When you trigger a note, the K2600 identiÞes the key range where the Note On event occurred. It also checks the attack velocity value of the note. It then addresses its memory, and retrieves the sample root thatÕs assigned to that key range and attack velocity value.
  • Page 36 Sampling and Sample Editing The Keymap Editor This keymap template contains one key range from C 0 to G 10, and is a convenient starting point for adding key ranges and assigning sample roots. The Keymap-editor page looks like this: EditKeymap||||||<>VelocityRange:ppp-fff| MasterXpose|:0ST|||||||||||||||||||||||| Key|Range|||:C|0-G|10||Lo:C|0||Hi:A|1|||...

  • Page 37: Special Double Button Presses In The Keymap Editor

    Sampling and Sample Editing The Keymap Editor Assign The Assign soft button lets you select a sample, then specify the key range to which itÕs assigned. This enables you to insert a new key range within the current keymap. When you press the Assign soft button, a dialog appears that prompts you to select a keymap from the Keymap list.
  • Page 38 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 K2600 (C 0 to G 10).

  • Page 39: Building A Keymap

    Sampling and Sample Editing Building a Keymap 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 itÕs of the multi- velocity variety (29 Bass^Slap Bass, for example). Multi-velocity keymaps have a predetermined number of velocity levels, each of which can be assigned a different sample.

  • Page 40: Using The Analog Inputs To Trigger Samples

    Sampling and Sample Editing Using the Analog Inputs to Trigger Samples prompt. At this point youÕve deÞned two key ranges, the Þrst from A 0 to F 1, and the second from F# 1 to F 2. You can repeat the process as many times as you want, creating a new key range each time.

  • Page 41: Creating A Live Mode Program

    Sampling and Sample Editing Live Mode Highlight the Thresh parameter on the SampleMode page, and adjust the input sensitivity so that your input signal causes smooth triggering. Threshold values approaching -90db let you trigger the sample using a lower input level, while values approaching -6db require a greater input level.

  • Page 42: Live Mode Programs

    Sampling and Sample Editing Live Mode For a stereo program, set Stereo to On on the KEYMAP page in the Program Editor. 5. Edit the programÕs parameters for the effect(s) you want to use. 6. Play C 4, then input the audio source that you want to run through Live mode. Hint: Set VelTrk on the EditProg F4 AMP page to 0 dB;...
  • Page 43 Sampling and Sample Editing Live Mode For starters, you can simply hook up a CD player to one of the K2600Õs sampling inputs, get a bunch of your favorite CDs, and start fooling around. (A turntable works well too.) Here are some ideas for going further: Pitch Changing Unlike an analog synthesizer, the K2600 makes it possible to alter the pitch of the incoming...
  • Page 44 Sampling and Sample Editing Live Mode Now at the Mod Wheel extremes, you will hear only one layer or the other, while in the middle, you will hear a combination of the pitch-modulated signal and the unmodulated signal. By experimenting with FUNs, you can get more precise crossfades. The program 744 LM Synth Sliders includes this kind of crossfade, tied to the Pitch Wheel, to implement a 3-layer crossfade.
  • Page 45 Sampling and Sample Editing Live Mode live signal, you may want to experiment with retriggering the notes, perhaps using the arpeggiator, at some appropriate tempo. If the passage you want to play is long, and the input signal isnÕt so longÑsay, the sax player needs to take a breathÑyou may run into a problem as the K2600 tries to play the buffer where the audio was interrupted.

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