Digital Audio Processing

Последна измена: December 5, 2019

Course: Digital Audio Processing

Code3ФЕИТ05003

ECTS points: 6 ECTS

Number of classes per week: 3+0+0+3

Lecturer: Asst. Prof. Dr. Branislav Gerazov

Course Goals (acquired competencies): The goal of the course program is to allow students to acquire a wide knowledge of the techniques for the analysis, synthesis and recognition of audio signals. It is designed to bring close the various approaches and applications of digital audio processing through studying the state-of-the-art.

Course Syllabus: 1. Fundamentals of digital audio, principles of digitisation, oversampling, jitter     2. Working with audio signals in the digital domain; quantisation, dither, noise shaping.     3. Fourier transform, Z-transform, amplitude and phase spectrum.     4. Sliding window method, short time Fourier transform (STFT), spectrograms.      5. Fundamentals of digital filters, filtering, FIR, IIR, FIR filter design.     6. LP, HP, BP, BS, and Notch filters, filterbanks, equalisation.     7. Digital audio effects in time domain: delays, echo, reverberation, AP filters, distortion, flange, chorus.     8. Digital audio effects in transform domain:  tremolo, vibrato, wah-wah, phaser, robotisation, vocoding.     9. Audio compression, basics of psychoacoustics, masking, critical bands, MP3, AAC.     10. Compression of speech, basics of speech production, LP analysis; LP10, CELP, VOCODER.     11. Machine learning for audio signals, musical instrument recognition, feature extraction, MFCCs.     12. Modelling audio data, GMM, ЕМ, UBM, LLRM.     13. Musical instrument synthesis, concatenation, autoencoders.

Literature:

22.1. Required Literature

No.

Author

Title

Publisher

Year

1

Udo ZölzerDigital Audio Signal ProcessingWiley2008

2

Andreas Spanias, Ted Painter,‎ Venkatraman AttiAudio Signal Processing and CodingWiley-Interscience2007

Additional Literature

No.

Author

Title

Publisher

Year

1

Ian McLoughlinApplied Speech and Audio Processing: With Matlab ExamplesCambridge University Press 

2

Udo ZölzerDAFX: Digital Audio EffectsWiley2011

3

Julius O. Smith IIISpectral Audio Signal ProcessingW3K Publishing2011