Daqarta
Data AcQuisition And Real-Time Analysis
Scope - Spectrum - Spectrogram - Signal Generator
Software for Windows Science with your Sound Card! |
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The following is from the Daqarta Help system:
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Features:OscilloscopeSpectrum Analyzer 8-Channel
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Applications:Frequency responseDistortion measurementSpeech and musicMicrophone calibrationLoudspeaker testAuditory phenomenaMusical instrument tuningAnimal soundEvoked potentialsRotating machineryAutomotiveProduct testContact us about
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MIDI Buffer Note ValuesChanges: Bvb.n0 MIDI Changes scripts can use individual note values from a Buffer or from live input on the right side of any expression. These are MIDI note numbers from 0-127, or 255 for silence if there is no note. (0 also acts as silence here, although in normal MIDI usage it would be C-2 = 8.176 Hz.) You can use a Buffer Note value anywhere a value can appear on the right side of an expression, typically shown as n in Changes command formats. The format to replace the n is Bvb.n0, where v is Voice number 1-8, and b is buffer number 1-4, or else 0 for that voice's live input (including any Note Delay). n0 is the index into the buffer, from 0-255. (For live input, the index is interpreted as "notes ago". See Buffer Copy for more information.) Buffer Note values allow scripts to change in response to notes being played (or about to be played, or previously played). As an example, a Voice Setup could change the Instrument Number according to note range, perhaps selecting a piccolo for high notes and a tuba for low: [B10.0>60 I1=72 | I1=58] In this IF-ELSE statement, B10.0 is the current live input note for Voice 1. If it is above 60 (Middle C), the Voice 1 Instrument is set to 72 (Piccolo), else 58 (Tuba). For DaqMusiq or KaleidoSynth performances that don't need to track a live input in real-time, you can set a certain Note Delay for each voice. As usual, the 0th index refers to the current note to be played by a voice, but in this case you can use negative index values to peek ahead at upcoming notes. Note that this command is "read-only" and can only appear on the right side of an expression, or in an IF test. However, it is equivalent to the 8-bit buffer direct access command Bbvb.n0 which can be used on either side of an expression, with the exception that you can't change live input notes (buffer 0). See also Changes Script Buffer Operations, Changes Script Overview, Changes Script Editor, MIDI Voice Setup Dialogs, Pitch-to-MIDI dialog, Pitch Track Toolbox - Overview |
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