Temat: audio processing - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Real-Time Acoustic Phenomena Modelling for Computer Games Audio Engine
Autorzy:: Miga, B.
Ziółko, B.
Powiązania:: https://bibliotekanauki.pl/articles/177439.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: sound reflection
transmission
attenuation
real-time audio processing
Opis:: This article presents an efficient method of modelling acoustic phenomena for real-time applications such as computer games. Simplified models of reflections, transmission, and medium attenuation are described along with assessments conducted by a professional sound designer. The article introduces representation of sound phenomena using digital filters for further digital audio processing.
Źródło:: Archives of Acoustics; 2015, 40, 2; 205-211
0137-5075
Pojawia się w:: Archives of Acoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Dynamically programmable analog arrays in acoustic frequency range signal processing
Autorzy:: Falkowski, P.
Mechler, A.
Powiązania:: https://bibliotekanauki.pl/articles/221037.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: FPAA
audio processing
switched-capacitor
analog circuits design
Opis:: Field programmable analog arrays (FPAA), thanks to their flexibility and reconfigurability, give the designers quite new possibilities in analog circuit design. The number of both academic projects on FPAA and applications of commercially available programmable devices is still growing. This paper explores the properties and parameters of two most popular FPAA circuits: the AnadigmVortex AN221E04 and AnadigmApex AN231E04 from the Anadigm company. The research conducted by the authors led to the discovery of some undocumented features of these devices. Several applications for audio processing were built and tested. The results show that these circuits can be used in medium-demanding audio applications. Thanks to dynamic reconfigurability, they also allow to build an universal analog audio signal processor. These circuits can also act as a versatile platform for rapid prototyping and educational purposes.
Źródło:: Metrology and Measurement Systems; 2011, 18, 1; 77-89
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analysis of a novel FPGA-based system for filtering audio signals using a finite impulse response filters
Autorzy:: Lipowski, Adrian
Majewski, Paweł
Pluta, Sławomir
Powiązania:: https://bibliotekanauki.pl/articles/2055238.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: audio filtering
FIR filter
FPGA
signal processing
Opis:: In this article, an analysis of an innovative system for filtering signals in the audible range (16 Hz - 20 kHz) on programmable logic devices using a filters with a finite impulse response, is presented. Mentioned system was neat combination of software and hardware platform, where in the program layer a multiple programming languages including VHDL, JavaScript, Matlab or HTML were used to create completely useful application. To determine the coefficients of polynomial filters the Matlab Filter Design & Analysis Tool was used. Thanks to the developed graphic layer, a user-friendly interface was created, which allows easily transfer the required coefficients from the computer to the executive system. The practical implementation made on the FPGA platform, specifically on the Altera DE2- 115 development kit with the FPGA Cyclone IV, was compared with simulation realization of Matlab FIR filters. The performed research confirm the effectiveness of filtration in real time with up to 128th order of the filter for both audio channels simultaneously in FPGA-based system.
Źródło:: International Journal of Electronics and Telecommunications; 2022, 68, 1; 19--26
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

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