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An overview of the VariOS
Internal structure of the VariOS
"Samples" and "performances"
The VariOS uses two units of sound: "samples" and "performances."
A "sample" consists of a wave with VariOS sample parameters. Data that assigns samples to the six parts is called a
"performance." The internal memory of the VariOS can contain only one performance. A performance has six parts, and
can use up to a total of 128 samples. By assigning samples to the six parts and sending MIDI messages to each part, you
can play multiple samples simultaneously. The six parts in V-Producer's Vari Track (p. 68) correspond to the six parts of
the performance.
To play sounds
The VariOS is not ready to produce sound immediately after you turn on the power. Samples must first be loaded into
internal memory. Connect the VariOS to your computer via a USB cable, and use the V-Producer's "Load Wave Files"
command (p. 56) to send wave files (WAV or AIFF) or Vari Phrase format files (VPW) from your computer to the VariOS.
At this time, V-Producer will convert (encode) (p. 55) the wave files into Vari Phrase format. If you want to re-encode a
previously loaded sample in a different format, use V-Producer's "Wave Edit" command (p. 65).
Saving sounds
The samples that are loaded into the VariOS can be saved in the internal flash ROM of the VariOS, or on a PC card
inserted into its card slot.
When you save a performance (p. 122), not only the performance settings but also all samples in internal memory will
be saved (excluding samples for which there is no wave data, or samples that cannot be saved). In other words, a
"performance" contains all the data necessary for playing one song.
When you load a performance into the VariOS, the samples that were saved with it will also be loaded. You can also save
or load samples individually (p. 121).
What is "keyboard map"?
The VariOS has a "Keyboard Map"(p. 115) parameter that describes the state of the keyboard. This parameter is set
separately for each part, and has two states.
If keyboard map is set to "Phrase Map," the sample assigned to the part can be played at the pitch of each key.
If keyboard map is set to "Groove Map," the sample assigned to a part is divided at events (p. 67), and assigned to each
key. This means that you can randomly play different sections of the sample from different keys without regard to their
original order within the sample. If you turn on the Loop switch (p. 114), you can repeatedly play a section within the
sample.
Sample playback
Samples will normally play from the beginning of the wave. You cannot play a sample from some arbitrary point.
If you want to play a sample from some point in the middle, set the keyboard map to "Groove Map." Alternatively, you
can set the playback mode (p. 113) to "STEP" so that each press of the keyboard will sound successive slices (regions
between events) of the sample. When playing a sample from the middle in this way, playback will be in units (slices)
divided by events (p. 67).
Maximum sample time
The maximum sample length is 2 minutes 30 seconds stereo, or 5 minutes monaural. Samples longer than this cannot be
loaded. Also, the total time of all samples in the internal memory of the VariOS cannot exceed this amount.
Maximum polyphony
The maximum polyphony is 14 notes (voices). If the VariOS receives data attempting to play more than this number of
voices simultaneously, notes will be omitted. If the number of requested voices exceeds 14, the VariOS will give priority
to the most recently played sounds, and will begin turning off older notes.
A stereo sample will use up two notes (voices) for each sound.
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