Tutorials and Topics - Peabody Computer Music

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Audio I/OAudio input andoutput with MSPYou can make overall changes to the basic operation of your default audio driver byaccessing the Sounds and Audio Devices Properties window (Start – Settings – ControlPanel – Sounds and Audio Devices). Here you can select Audio devices, and createsettings for balance and output volume.MSP supports the use of different input and output devices with MME and DirectSounddrivers. Use the DSP Status Window to choose input and output devices.50
Audio I/OAudio input andoutput with MSPInput and Output DevicesWhen using MME or Directsound drivers, you may choose input and output devicesfrom the pull-down menus in the DSP Status window, which will be automaticallypopulated with the drivers for your audio hardware. When using the MME andDirectsound drivers, it is possible to use different audio devices for input and outputsimultaneously. However, this is not recommended or supported and unless there issome external (from Max/MSP) provision for synchronizing the devices dropouts willlikely occur over time.Thread Priority and Latency SettingsBoth MME and Directsound drivers include settings for Thread Priority and Latency.These are both set by default to settings which we hope will work on your computer inthe majority of situations. However, you may find that when you are working with apatch that you have problems which you may be able to resolve by changing some ofthese settings. If your audio is crackling or there are glitches in it, you may want to tryincreasing the latency setting. This has the disadvantage of making your audio feel lessresponsive in real time, but it will allow the audio driver more time to work on the extraaudio demands you have placed on it.If your system is slow in other areas—such as screen redrawing or general timingaccuracy—you may wish to decrease the thread priority of the audio driver. This will giveyour other tasks more room to get done, but may also result in you needing to increaselatency in order to give your audio driver room to breathe at the new lower priority.Timing between the max scheduler and MSP is best when the I/O vector size is on theorder of 1ms. We recommend setting the IO vector size to 128 samples. Having a settingof the latency separate from the I/O vector size allows this to work without audio glitcheson most hardware.Using ReWire with MSPThe ad_rewire driver allows you to use MSP as a ReWire Device, where MSP audio willbe routed into a ReWire Mixer application such as Cubase. Both Max/MSP and the mixerapplication must be running at the same time in order to take advantage of ReWire'sservices. The mixer application should be also compatible with ReWire 2 or later for bestresults.When the ad_rewire driver is selected, audio from MSP can be routed to any of 16 interapplicationReWire channels which will appear as inputs in ReWire mixer hostapplications. The first time ad_rewire is selected it will register itself with the ReWiresystem. Subsequent launches of ReWire Mixer applications will then offer Max/MSP as aReWire device.51
Page 1 and 2: MSPTutorials and TopicsVersion 4.5.
Page 3 and 4: Table of ContentsCopyright and Trad
Page 5 and 6: Table of ContentsExercise 3 .......
Page 8 and 9: Table of ContentsVarying parameters
Page 10 and 11: IntroductionWith the addition of th
Page 12: IntroductionThe Max/MSP Examples fo
Page 15 and 16: How Digital Audio Works• The fluc
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Page 29 and 30: How Digital Audio WorksManipulating
Page 31 and 32: How MSP WorksMax patches and theMSP
Page 37 and 38: Audio I/OAudio input andoutput with
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Page 59 and 60: Tutorial 1Fundamentals:Test toneWav
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Page 63 and 64: Tutorial 2Fundamentals:Adjustable o
Page 69 and 70: Tutorial 3Fundamentals:Wavetable os
Page 75 and 76: Tutorial 4Fundamentals:Routing sign
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Page 86 and 87: Tutorial 5Fundamentals:Turning sign
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Tutorial 7Synthesis:Additive synthe
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Tutorial 7Synthesis:Additive synthe
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Multiplying signalsTutorial 8: Synt
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Tutorial 8Synthesis:Tremolo and rin
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Tutorial 9: Synthesis—Amplitude m
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Tutorial 9Synthesis:Amplitude modul
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Tutorial 10: Synthesis—Vibrato an
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Elements of FM synthesisTutorial 11
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Tutorial 11Synthesis:Frequency modu
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Tutorial 11Synthesis:Frequency modu
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Tutorial 12Synthesis:WaveshapingThe
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Tutorial 12Synthesis:Waveshaping•
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Sound input: adc~Tutorial 13: Sampl
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Tutorial 13Sampling:Recording and p
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Tutorial 13Sampling:Recording and p
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Playing samples with groove~Tutoria
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Tutorial 14Sampling:Playback with l
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Tutorial 15Sampling:Variable-length
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Tutorial 16Sampling:Record and play
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Tutorial 16Sampling:Record and play
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Tutorial 17Sampling reviewThe compu
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Tutorial 17Sampling reviewThe keyst
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Tutorial 18: MIDI control—Mapping
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Tutorial 18MIDI Control:Mapping MID
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Tutorial 18MIDI Control:Mapping MID
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Implementing standard MIDI messages
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Tutorial 19MIDI Control:Synthesizer
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Tutorial 20: MIDI control—Sampler
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Tutorial 20MIDI Control:SamplerThis
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Tutorial 20MIDI Control:SamplerNote
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Tutorial 20MIDI Control:SamplerSumm
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Tutorial 21MIDI Control:Using the p
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Panning for localization and distan
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Tutorial 22MIDI Control:PanningIn c
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Tutorial 22MIDI Control:PanningTher
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Tutorial 22MIDI Control:Panning•
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Tutorial 23Analysis:Viewing signal
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Tutorial 24: Analysis—Oscilloscop
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Tutorial 24Analysis:Oscilloscopedif
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Tutorial 25Analysis:Using the FFTAl
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Tutorial 25Analysis:Using the FFTIt
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Tutorial 25Analysis:Using the FFTAs
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Tutorial 26Frequency domain signalp
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Effects achieved with delayed signa
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Tutorial 27Processing:Delay linesEq
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Tutorial 28Processing:Delay lines w
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Tutorial 28Processing:Delay lines w
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Tutorial 29Processing:FlangeWhile t
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Tutorial 29Processing:Flangedemonst
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Tutorial 30: Processing—ChorusThe
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Tutorial 30Processing:ChorusMultipl
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Tutorial 31: Processing—Comb filt
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Tutorial 31Processing:Comb filterTh
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Tutorial 31Processing:Comb filterco
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The dsp objectControlling and autom
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Indexfeedback in a delay line......
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Tutorials and Topics - Peabody Computer Music

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