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Explanatory Notes
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Web page:
https://moodle.fel.cvut.cz/courses/BE2M31SYN
Anotation:
This course introduces the fundamentals of sound synthesis algorithms (everyday, music and speech), digital audio effects and sonification. Multimedia synthetic signals are used in modern digital systems, virtual reality systems, computer animations, games and film. Understanding of theoretical concepts will be consolidated through practical programming assignments in Matlab.
Study targets:
The aim of the study is to gain theoretical knowledge and practical experience with digital audio synthesis.
Course outlines:
| 1. | | Introduction to digital audio signal synthesis; musical scale generator |
| 2. | | Wavetable synthesis; time expansion and compression, time envelopes |
| 3. | | Concatenative and granular synthesis; parameters, synchronous and asynchronous |
| 4. | | Additive synthesis and spectral modelling; periodical nonharmonic signals |
| 5. | | Phase vocoder; signal modification in frequency domain |
| 6. | | Subtractive synthesis; excitation sources, simple filters, equalizers, color noise |
| 7. | | Formant synthesis; Klatt synthesizer, cascade and parallel configuration, FOF |
| 8. | | Linear prediction; cross synthesis speech and music, non-speech sound modelling |
| 9. | | Modulation synthesis; AM, tremolo, FM, vibrato, alarm, everyday sounds and tools |
| 10. | | Nonlinear and waveshaping synthesis; Chebyshev polynomials, limiters, distortion |
| 11. | | Delay effects; echo, reverb, comb and all-pass filters |
| 12. | | Spatial effects; Doppler effect, panning, hall, Schroeder?s reverb |
| 13. | | Introduction to physical modelling; digital waveguides, Karplus-Strong algorithm |
| 14. | | Sonification of biological signals (ECG, EMG, EEG, FCG, EOG), applications |
Exercises outline:
| 1. | | Musical scale, Morse code; aliasing, quantization and compression simulation |
| 2. | | Time and frequency scale modification, clarinet and banjo wavetable synthesis |
| 3. | | Concatenative speech synthesis, "sci-fi" sound synthesis |
| 4. | | Birdcall, brass, bells, gongs, cymbals, banjo, cllarinet and phone synthesis |
| 5. | | Length changes of audio signals, pitch shift, noise enhancement |
| 6. | | Synthesis of percussion, plane, wind, waves, violin, steps , consonant "s" |
| 7. | | Formant synthesis of vowels, music instrument and animal voice |
| 8. | | Speech, guitar, piano and hammer resynthesis; "cross" synthesis music and speech |
| 9. | | Vibrato, tremolo, coins, bubles, alarms, klepání, dřevo, klarinet, žestě, zvony |
| 10. | | Application of waveshaping to plucked string instruments, percussion and speech |
| 11. | | Digital reverb implementation (cellar, shover, cathedral) |
| 12. | | Spatial effects in sérech and music |
| 13. | | Guitar, harp, piano and drums synthesis |
| 14. | | Sonification of EEG, ECG, FCG, EMG |
Literature:
Miranda, E.R.: Computer Sound Design, ISBN 0-240-51693-1, Focal Press, Oxford, 2002
Zölzer, U.: DAFX - Digital Audio Effects, ISBN: 0-471-49078-4, John Wiley & Sons, 2002
Requirements:
The condition for granting credit is elaboration of selected task in MATLAB.
Keywords:
Sound syntesis
Subject is included into these academic programs:
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Proposal and Realization: I. Halaška (K336), J. Novák (K336) |