Partitioned convolution algorithms for real-time auralization
By (author) Frank Wefers
Paperback (Published)
(May 2015)
ISBN: 9783832539436
5.71 x 8.27 inches
Price: $67.00
On back order
This work discusses methods for efficient audio processing with finite impulse response (FIR) filters. Such filters are widely used for high-quality acoustic signal processing, e.g. for headphone or loudspeaker equalization, in binaural synthesis, in spatial sound reproduction techniques and for the auralization of reverberant environments. This work focuses on real-time applications, where the audio processing is subject to minimal delays (latencies). Different fast convolution concepts (transform-based, interpolation-based and number-theoretic), which are used to implement FIR filters efficiently, are examined regarding their applicability in real-time. These fast, elementary techniques can be further improved by the concept of partitioned convolution. This work introduces a classification and a general framework for partitioned convolution algorithms and analyzes the algorithmic classes which are relevant for real-time filtering: Elementary concepts which do not partition the filter impulse response (e.g. regular Overlap-Add and Overlap-Save convolution) and advanced techniques, which partition filters uniformly and non-uniformly. The algorithms are thereby regarded in their analytic complexity, their performance on target hardware, the optimal choice of parameters, assemblies of multiple filters, multi-channel processing and the exchange of filter impulse responses without audible artifacts. Suitable convolution techniques are identified for different types of audio applications, ranging from resource-aware auralizations on mobile devices to extensive room acoustics audio rendering using dedicated multi-processor systems.
- By (author) Frank Wefers
Other Titles in this Series
Uncertainties in Acoustical Transfer Functions
Modeling, Measurement and Derivation of Parameters for Airborne and Structure-borne Sound
Volume 16
Measurement of Surface Reflection Properties. Concepts and Uncertainties
Concepts and Uncertainties
Volume 23
Similar Books
![Book cover: Transitive Media [Philosophy]](https://isd.stisonbooks.com/images/books/native/9781804132333.jpg?asset_id=66970)
Care in an Era of New Technologies and Artificial Intelligence
Relationships in a Connected World
Volume 14
Buchblogs zwischen Passion und Profession
Zur Diskursivierung digitaler literaturbezogener Anschlusskommunikation als Arbeit
Die Einführung ins richtige Handeln in der Arithmetik (Madḫal ar-rašad ilā ʿilm al-ʿadad) von al-Qalaṣādī (st. 1486)
Bearbeitung und Einordnung in die maġribinische Mathematikgeschichte
Volume 19
Digitale Medien und Religionsunterricht
Ein domänenspezifischer Beitrag zu einer kritischen Medienbildung unter Berücksichtigung medien-, bildungs- und lerntheoretischer Perspektiven
Ein Glucksritter als Wegbereiter der Motorisierung
Der Basler Kaufmann Eduard Burckhardt (1847-1897)
