Electronic Music Theory Book

amici della computer #music, musica elettronica e interattiva, amanti del suono, matematica e teoria dei segnali… facendo ordine ho ritrovato questa piccola bibbia sulla Musica Elettronica, scritta niente popodimeno che da Miller Puckette (MIT Media Lab e poi IRCAM dove creò Pure Data da cui è stato poi sviluppato Max/MSP). da giovane ho lavorato molto in questo mondo che consiglio a chiunque voglia approfondire la Musica Interattiva. come tutti i grandi, il libro è una risorsa free per tutti (online html o PDF) a questo indirizzo: http://msp.ucsd.edu/techniques.htm

se spulciate il suo ito, troverete anche tutti i video dei corsi che ha tenuti negli ultimi anni, tra cui:

  • Compositional algorithms
  • Musical Acoustics
  • Survey of Electronic Music Techniques II
  • Computer Music
  • Real-time computer music software design
  • Feedback and Distortion
  • Stored and Live Control Streams for Real-time Electronic Music
  • Fourier analysis, synthesis, and processing
  • The voice as musical instrument
  • Inside Pure Data
  • Analysis of Musical Sound
  • Compositional algorithms trascrivo qui l’indice del libro giusto per stuzzicare i ricercatori.

Sinusoids, amplitude and frequency

  • Measures of Amplitude
  • Units of Amplitude
  • Controlling Amplitude
  • Frequency
  • Synthesizing a sinusoid
  • Superposing Signals
  • Periodic Signals
  • About the Software Examples
    • Quick Introduction to Pd
    • How to find and run the examples
  • Examples
    • Constant amplitude scaler
    • Amplitude control in decibels
    • Smoothed amplitude control with an envelope generator
    • Major triad
    • Conversion between frequency and pitch
    • More additive synthesis

Wavetables and samplers

  • The Wavetable Oscillator
  • Sampling
  • Enveloping samplers
  • Timbre stretching
  • Interpolation
  • Examples
    • Wavetable oscillator
    • Wavetable lookup in general
    • Using a wavetable as a sampler
    • Looping samplers
    • Overlapping sample looper
    • Automatic read point precession

Audio and control computations

  • The sampling theorem
  • Control
  • Control streams
  • Converting from audio signals to numeric control streams
  • Control streams in block diagrams
  • Event detection
  • Audio signals as control
  • Operations on control streams
  • Control operations in Pd
  • Examples
    • Sampling and foldover
    • Converting controls to signals
    • Non-looping wavetable player
    • Signals to controls
    • Analog-style sequencer
    • MIDI-style synthesizer

Automation and voice management

  • Envelope Generators
  • Linear and Curved Amplitude Shapes
  • Continuous and discontinuous control changes
    • Muting
    • Switch-and-ramp
  • Polyphony
  • Voice allocation
  • Voice tags
  • Encapsulation in Pd
  • Examples
    • ADSR envelope generator
    • Transfer functions for amplitude control
    • Additive synthesis: Risset’s bell
    • Additive synthesis: spectral envelope control
    • Polyphonic synthesis: sampler

Modulation

  • Taxonomy of spectra
  • Multiplying audio signals
  • Waveshaping
  • Frequency and phase modulation
  • Examples
    • Ring modulation and spectra
    • Octave divider and formant adder
    • Waveshaping and difference tones
    • Waveshaping using Chebychev polynomials
    • Waveshaping using an exponential function
    • Sinusoidal waveshaping: evenness and oddness
    • Phase modulation and FM

Designer spectra

  • Carrier/modulator model
  • Pulse trains
    • Pulse trains via waveshaping
    • Pulse trains via wavetable stretching
    • Resulting spectra
  • Movable ring modulation
  • Phase-aligned formant (PAF) generator
  • Examples
    • Wavetable pulse train
    • Simple formant generator
    • Two-cosine carrier signal
    • The PAF generator
    • Stretched wavetables

Time shifts and delays

  • Complex numbers
    • Complex sinusoids
  • Time shifts and phase changes
  • Delay networks
  • Recirculating delay networks
  • Power conservation and complex delay networks
  • Artificial reverberation
    • Controlling reverberators
  • Variable and fractional shifts
  • Fidelity of interpolating delay lines
  • Pitch shifting
  • Examples
    • Fixed, noninterpolating delay line
    • Recirculating comb filter
    • Variable delay line
    • Order of execution and lower limits on delay times
    • Order of execution in non-recirculating delay lines
    • Non-recirculating comb filter as octave doubler
    • Time-varying complex comb filter: shakers
    • Reverberator
    • Pitch shifter

Filters

  • Taxonomy of filters
    • Low-pass and high-pass filters
    • Band-pass and stop-band filters
    • Equalizing filters
  • Elementary filters
    • Elementary non-recirculating filter
    • Non-recirculating filter, second form
    • Elementary recirculating filter
    • Compound filters
    • Real outputs from complex filters
    • Two recirculating filters for the price of one
  • Designing filters
    • One-pole low-pass filter
    • One-pole, one-zero high-pass filter
    • Shelving filter
    • Band-pass filter
    • Peaking and stop-band filter
    • Butterworth filters
    • Stretching the unit circle with rational functions
    • Butterworth band-pass filter
    • Time-varying coefficients
    • Impulse responses of recirculating filters
    • All-pass filters
  • Applications
    • Subtractive synthesis
    • Envelope following
    • Single Sideband Modulation
  • Examples
    • Prefabricated low-, high-, and band-pass filters
    • Prefabricated time-varying band-pass filter
    • Envelope followers
    • Single sideband modulation
    • Using elementary filters directly: shelving and peaking
    • Making and using all-pass filters

Fourier analysis and resynthesis

  • Fourier analysis of periodic signals
    • Periodicity of the Fourier transform
    • Fourier transform as additive synthesis
  • Properties of Fourier transforms
    • Fourier transform of DC
    • Shifts and phase changes
    • Fourier transform of a sinusoid
  • Fourier analysis of non-periodic signals
  • Fourier analysis and reconstruction of audio signals
    • Narrow-band companding
    • Timbre stamping (classical vocoder)
  • Phase
    • Phase relationships between channels
  • Phase bashing
  • Examples
    • Fourier analysis and resynthesis in Pd
    • Narrow-band companding: noise suppression
    • Timbre stamp (“vocoder”)
    • Phase vocoder time bender

Classical waveforms

  • Symmetries and Fourier series
    • Sawtooth waves and symmetry
  • Dissecting classical waveforms
  • Fourier series of the elementary waveforms
    • Sawtooth wave
    • Parabolic wave
    • Square and symmetric triangle waves
    • General (non-symmetric) triangle wave
  • Predicting and controlling foldover
    • Over-sampling
    • Sneaky triangle waves
    • Transition splicing
  • Examples
    • Combining sawtooth waves
    • Strategies for band-limiting sawtooth waves
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Stefano Cecere
Stefano Cecere
Play well, Die Happy! Autore, Educatore, Sviluppatore, Umanista, Papà.

Ricerco, Sviluppo e Condivido nell’intersezione tra Giochi, Educazione, Tecnologie Digitali, Creatività, Filosofia e attivismo Umanista per una Politica 2042. Senza troppe aspettative ma almeno mi diverto nel tentativo :) ah e papà 2x

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