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Korg Triton Le Basic Manual: How Sampling Mode Is Organized; In Sampling Mode; Samples And Multisamples

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• Sample names and multisample names of up to 16
characters can be assigned. Sample names and
multisample names can also be viewed in Media
mode ( PG p.141 "Translation").

How Sampling mode is organized

In Sampling mode
• An external audio signal from an external audio
device or microphone connected to the AUDIO
INPUT 1 and 2 jacks is passed through an analog/
digital convertor, and recorded (sampled).
• You can edit the waveform and loop settings etc. of
sample data that you sampled or that you loaded
from a SmartMedia, CD-ROM etc., in Media mode.
• You can assign samples to the keyboard to create a
multisample. These samples and multisamples can
be easily converted to a program using the Utility
menu command "Conv. To Program," and these
programs can be used immediately in a
combination or a song.
Sampling frequency and bit resolution
As shown in the diagram, sampling reads the level of
the analog signal at fixed intervals along the time axis,
and stores the levels in memory as digital data.
Level
Analog waveform
48kHz
Level
= 48,000 times every second
= 0.0208 mS cycle
Sampled digital
waveform
AUDIO INPUT jack Analog/digital
convertor
ADC
Analog signal
Used by combinations
and songs
Time
16bit
= 65,536 levels
Time
of data
RAM (SIMM memory):
Insert Effect
16 MB (expandable to 96 MB)
Sample 0000 ... 3999
Digital signal
Program
Multisample 000 ... 999
RAM (internal memory)
The "fixed intervals" mentioned above are generally
expressed as the "sampling frequency." 48 kHz (kilo-
hertz) means that sampling is performed 48,000 times
each second, and that the interval is 1 (second)/48,000
(times) = approximately 0.00002083 (seconds) =
approximately 0.02083 mS (millisecond).
The higher the sampling frequency is, the closer to the
original analog signal the waveform in memory will
be.
Each level is read, and converted into digital data. The
accuracy at this time is determined by the bit resolu-
tion. This process converts an analog signal with infi-
nite resolution into a digital signal with finite
resolution. With 16 bit resolution, each level is indi-
cated in 65,536 steps (the sixteenth power of two).
The greater the bit resolution is, the closer to the origi-
nal analog signal the waveform in memory will be.
48 kHz 16 bit sampling is the same quality as in audio
devices such as DAT. A CD uses 44.1 kHz 16 bit sam-
pling, which is a slightly lower sampling frequency.
Samples and Multisamples
Samples
The data that is recorded (sampled) into internal mem-
ory or loaded from a file is referred to as a sample or
sample file. Samples consist of the actual waveform
data, and parameters that specify how the data will be
played back, such as Start, Loop Start, and End
Address. Samples can be used in multisamples and
drum kits.
The TRITON Le can hold a maximum of 4,000 samples
in its internal memory.
The TRITON Le can share a single waveform
among multiple samples. This allows you to create
multiple samples with different playback
addresses from the same waveform without wast-
ing internal memory. For example, suppose that
you have waveform data that records a voice say-
ing "One-Two-Three." This single piece of wave-
form data could be shared by three samples, with
Digital/analog
convertor
DAC
Digital signal
SmartMedia, SCSI media (Media mode)
AUDIO OUTPUT
jack
Analog signal
83

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