Spatial audio processing [[electronic resource] ] : MPEG surround and other applications / / Jeroen Breebaart, Christof Faller

• Record Nr.: UNINA9910144581303321
• Autore: Breebaart Jeroen
• Pubbl/distr/stampa: Chichester, West Sussex, England ; ; Hoboken, NJ, : John Wiley & Sons, c2007
• ISBN: 1-282-13811-1; 9786612138119; 0-470-72349-1; 0-470-72348-3
• Edizione: [1st edition]
• Descrizione fisica: 1 online resource (225 p.)
• Altri autori (Persone): FallerChristof
• Disciplina: 621.389/3; 621.3893
• Soggetti: Computer sound processing; Sound - Recording and reproducing - Digital techniques; Multimedia systems - Programming; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (p. [193]-206) and index.
• Nota di contenuto: Spatial Audio Processing; Contents; Author Biographies; Foreword; Preface; 1 Introduction; 1.1 The human auditory system; 1.2 Spatial audio reproduction; 1.3 Spatial audio coding; 1.4 Book outline; 2 Background; 2.1 Introduction; 2.2 Spatial audio playback systems; 2.2.1 Stereo audio loudspeaker playback; 2.2.2 Headphone audio playback; 2.2.3 Multi-channel audio playback; 2.3 Audio coding; 2.3.1 Audio signal representation; 2.3.2 Lossless audio coding; 2.3.3 Perceptual audio coding; 2.3.4 Parametric audio coding; 2.3.5 Combining perceptual and parametric audio coding; 2.4 Matrix surround; 2.5 Conclusions3 Spatial Hearing; 3.1 Introduction; 3.2 Physiology of the human hearing system; 3.3 Spatial hearing basics; 3.3.1 Spatial hearing with one sound source; 3.3.2 Ear entrance signal properties and lateralization; 3.3.3 Sound source localization; 3.3.4 Two sound sources: summing localization; 3.3.5 Superposition of signals each evoking one auditory object; 3.4 Spatial hearing in rooms; 3.4.1 Source ; localization in the presence of reflections: the precedence effect; 3.4.2 Spatial impression; 3.5 Limitations of the human auditory system; 3.5.1 Just-noticeable differences in interaural cues3.5.2 Spectro-temporal decomposition; 3.5.3 Localization accuracy of single sources; 3.5.4 Localization accuracy of concurrent sources; 3.5.5 Localization accuracy when reflections are present; 3.6 Source localization in complex listening situations; 3.6.1 Cue selection model; 3.6.2 Simulation examples; 3.7 Conclusions; 4 Spatial Audio Coding; 4.1 Introduction; 4.2 Related techniques; 4.2.1 Pseudostereophonic processes; 4.2.2 Intensity stereo coding; 4.3 Binaural Cue Coding (BCC); 4.3.1 Time-frequency processing; 4.3.2 Down-mixing to one channel4.3.3 'Perceptually relevant differences' between audio channels; 4.3.4 Estimation of spatial cues; 4.3.5 Synthesis of spatial cues; 4.4 Coding of low-frequency effects (LFE) audio channels; 4.5 Subjective performance; 4.6 Generalization to spatial audio coding; 5 Parametric Stereo; 5.1 Introduction; 5.1.1 Development and standardization; 5.1.2 AacPlus v2; 5.2 Interaction between core coder and spatial audio coding; 5.3 Relation to BCC; 5.4 Parametric stereo encoder; 5.4.1 Time/frequency decomposition; 5.4.2 Parameter extraction; 5.4.3 Down-mix; 5.4.4 Parameter quantization and coding5.5 Parametric stereo decoder; 5.5.1 Analysis filterbank; 5.5.2 Decorrelation; 5.5.3 Matrixing; 5.5.4 Interpolation; 5.5.5 Synthesis filterbanks; 5.5.6 Parametric stereo in enhanced aacPlus; 5.6 Conclusions; 6 MPEG Surround; 6.1 Introduction; 6.2 Spatial audio coding; 6.2.1 Concept; 6.2.2 Elementary building blocks; 6.3 MPEG Surround encoder; 6.3.1 Structure; 6.3.2 Pre- and post-gains; 6.3.3 Time-frequency decomposition; 6.3.4 Spatial encoder; 6.3.5 Parameter quantization and coding; 6.3.6 Coding of residual signals; 6.4 MPEG Surround decoder; 6.4.1 Structure
• Sommario/riassunto: This book collects a wealth of information about spatial audio coding into one comprehensible volume. It is a thorough reference to the 3GPP and MPEG Parametric Stereo standards and the MPEG Surround multi-channel audio coding standard. It describes key developments in coding techniques, which is an important factor in the optimization of advanced entertainment, communications and signal processing applications. Until recently, technologies for coding audio signals, such as redundancy reduction and sophisticated source and receiver models did not incorporate spatial characteristics of sou