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Open AccessJournal Article

Directional Audio Coding: Filterbank and STFT-Based Design

Pulkki, +1 more
- 01 May 2006 - 
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This article is published in Journal of The Audio Engineering Society.The article was published on 2006-05-01 and is currently open access. It has received 43 citations till now. The article focuses on the topics: Speech coding & Adaptive Multi-Rate audio codec.

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Patent

Method and apparatus for encoding and decoding successive frames of an ambisonics representation of a 2- or 3-dimensional sound field

Peter Jax, +3 more
TL;DR: In this paper, the spatial domain compression is carried out in spatial domain instead of HOA domain, where the (N+1)2 input HOA coefficients are transformed into (N + 1)2 equivalent signals in spatial domains, and the resulting signals are input to a bank of parallel perceptual codecs.
Proceedings ArticleDOI

Primary-Ambient Signal Decomposition and Vector-Based Localization for Spatial Audio Coding and Enhancement

M.M. Goodwin, +1 more
TL;DR: A spatial analysis-synthesis scheme which applies principal component analysis to an STFT-domain representation of the original audio to separate it into primary and ambient components, which are then respectively analyzed for cues that describe the spatial percept of the audio scene on a per-tile basis.
Patent

Focusing on a portion of an audio scene for an audio signal

Ole Kirkeby, +1 more
TL;DR: In this article, the user provides a desired direction of spatial attention so that audio processing can focus on the desired direction and render a corresponding multi-channel audio signal to the user, analogous to a magnifying glass being used to pick out details in a picture.
Patent

Method and apparatus for conversion between multi-channel audio formats

Ville Pulkki, +1 more
TL;DR: In this paper, an input multi-channel representation is converted into a different output multichannel representation of a spatial audio signal, in which an intermediate representation of the audio signal is derived, the intermediate representation having direction parameters indicating a direction of origin of a portion of the signal.
Patent

Method, apparatus and computer program product for utilizing spatial information for audio signal enhancement in a distributed network environment

Jussi Virolainen, +1 more
TL;DR: In this article, an apparatus for utilizing spatial information for audio signal enhancement in a multiple distributed network may include a processor, which can be configured to receive representations of a plurality of audio signals including at least one audio signal received at a first device and at least a second audio signal receiving at a second device.