Unlock instant, AI-driven research and patent intelligence for your innovation.

Loudspeaker control

A loudspeaker and loudspeaker array technology, applied in the direction of microphone, loudspeaker distribution signal, loudspeaker space/structural arrangement, etc., can solve the problem of expensive filter calculation

Pending Publication Date: 2021-12-07
AUDIOSCENIC LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the determination of the weights of these filters can be computationally expensive, especially if the control points are moving and thus need to calculate the filter weights in real-time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Loudspeaker control
  • Loudspeaker control
  • Loudspeaker control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In general, the present disclosure relates to a way of controlling an array of loudspeakers to avoid crosstalk (which reduces the extent to which an audio signal to be reproduced at a first control point is also reproduced at other control points) at corresponding multiple control points method for reproducing multiple input audio signals. A set of filters is applied to the input audio signal to obtain a plurality of output audio signals output to the speaker array. The present disclosure is mainly concerned with the manner in which these filters are determined.

[0024] figure 1 A method of controlling a loudspeaker array is shown.

[0025] In step S100, a plurality of input audio signals to be reproduced at corresponding plurality of control points in an acoustic environment through a loudspeaker array are received.

[0026] In step S110, a plurality of control points may be received using a position sensor. In particular, the location of each of the plurality of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of controlling a speaker array is provided. The method comprises: receiving a plurality of input audio signals to be rendered at a respective plurality of control points in an acoustic environment by the array; and generating a respective output audio signal for each speaker in the array by applying a set of filters to the plurality of input audio signals. The set of filters is based on: a first plurality of filter elements based on a first approximation of a set of transfer functions, each transfer function in the set of transfer functions is between an audio signal applied to a respective one of the loudspeakers and an audio signal received from the respective one of the loudspeakers at a respective one of the control points; and a second plurality of filter elements based on a second approximation of the set of transfer functions.

Description

technical field [0001] The present disclosure relates to a method of controlling a loudspeaker array as well as a corresponding apparatus and computer program. Background technique [0002] An array of loudspeakers can be used to reproduce a number of different audio signals at a number of control points. The audio signal applied to the loudspeaker array is generated using filters, which can be designed to avoid crosstalk. However, the determination of the weights of these filters can be computationally expensive, especially if the control points are moving and therefore filter weights need to be calculated in real time. This may be the case, for example, if the control points correspond to the position of the listener in the acoustic environment. [0003] A previous approach for determining filter weights for a loudspeaker array is described in WO 2017 / 158338A1. Contents of the invention [0004] Aspects of the disclosure are defined in the appended claims. Descripti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/12H04R5/02H04S7/00G10L21/0208H04R5/04
CPCH04R3/12H04R5/02H04S7/303G10L21/0208H04R5/04H04R2203/12H04S2420/01H04S7/308
Inventor F·M·法兹E·哈姆丹A·福兰克M·西蒙
Owner AUDIOSCENIC LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com