Daqarta
Data AcQuisition And Real-Time Analysis
Scope - Spectrum - Spectrogram - Signal Generator
Software for Windows
Science with your Sound Card!
The following is from the Daqarta Help system:

Features:

Oscilloscope

Spectrum Analyzer

8-Channel
Signal Generator

(Absolutely FREE!)

Spectrogram

Pitch Tracker

Pitch-to-MIDI

DaqMusiq Generator
(Free Music... Forever!)

Engine Simulator

LCR Meter

Remote Operation

DC Measurements

True RMS Voltmeter

Sound Level Meter

Frequency Counter
    Period
    Event
    Spectral Event

    Temperature
    Pressure
    MHz Frequencies

Data Logger

Waveform Averager

Histogram

Post-Stimulus Time
Histogram (PSTH)

THD Meter

IMD Meter

Precision Phase Meter

Pulse Meter

Macro System

Multi-Trace Arrays

Trigger Controls

Auto-Calibration

Spectral Peak Track

Spectrum Limit Testing

Direct-to-Disk Recording

Accessibility

Applications:

Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Auditory phenomena

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery

Automotive

Product test

Contact us about
your application!

Percussion Velocity Pattern

Controls: Sgram/PT Dialog >> Pitch-to-MIDI >> Percussion Setup
Changes: Vv.i0="string", pv=n
Table: Velocity Pattern Characters

Percussion Velocity Patterns control the timing and strength of each percussion sound.

There are 6 Pattern fields at the bottom of the Percussion Setup dialog, labeled A-F. Each pattern is specific to the Percussion Instrument having the same A-F label, and runs independently. Two instruments will track if their patterns have the same length.

Above the patterns is a line of digits which acts as a position indicator. Above each 0 digit is a single digit to show 10s. Patterns may be up to 256 characters long, so for positions 100 and above a 100s digit appears above the 10s digit.

You can use normal mouse or keyboard scroll operations during entry, or the Pattern Scroll controls for later review.

A single character at each pattern position sets the velocity of the relevant instrument for that beat. '8' sets maximum velocity, down to '0' for silence. You may also use '.' (period) for silence, to make the pattern easier to read.

There are also letter characters to specify that the velocity should be a random value within a specified range. The allows for a more "human" performance. (See the Velocity Pattern Character Table for a complete list.) You can also use Percussion Lag for even greater realism.

The velocity indicated by the pattern character works together with the Percussion Velocity control and Velocity Track state for the indicated instrument, to determine an overall MIDI velocity value in the 0-127 range.


MIDI Changes Script:

Vv.i0="string" sets "string" characters to the Velocity Pattern for instrument v starting at position index i0, which which may be any unsigned integer or valid expression, including current MIDI control values, random values, current computer keyboard states or mouse position, input or buffered notes, oscillators, and User Variables. The period before the index must be present. The index value will be limited to 0-255.

The instrument designation v must be A to F, case-insensitive.

If the start index points to a position past the end of the current pattern, the intervening positions will be padded with silence.

The entered "string" must include the surrounding quotes, and may have an arbitrary number of characters. Any characters that would extend past the 255 position will be truncated.

Note that you can use pv=n to set the overall pattern position pointer at any time. See the discussion under Voice Pattern Overview for more information.

Note that you can not use pG=n to set the Velocity Patterns for all Percussion Instruments A-F at once.

Note that you may also use the Buffer Copy or Xchange commands to copy or swap selected portions of the same or two different Velocity Patterns, including reversing their sequence.


See also Percussion Setup Dialog Pitch-to-MIDI dialog, Pitch Track Toolbox - Overview, Spectrogram / Pitch Track Controls, Spectrogram / Pitch Track (Sgram/PT)

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