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Method and mobile device for processing an audio signal

A technology of audio signal and processing scheme, applied in the field of mobile devices

Active Publication Date: 2016-08-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prior art solutions only provide means to manage the inevitable trade-off between two contradictory aspects

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  • Method and mobile device for processing an audio signal
  • Method and mobile device for processing an audio signal
  • Method and mobile device for processing an audio signal

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Embodiment Construction

[0090] The following detailed description is made in conjunction with the accompanying drawings, which form a part hereof, and which illustrate, by way of illustration, specific aspects in which the invention may be practiced. It is to be understood that other aspects may be utilized and structural or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description is not to be taken as limiting, and the scope of the invention is defined by the appended claims.

[0091] The apparatus and methods described herein may be based on audio signals, in particular stereo signals and multi-channel signals. It should be understood that comments made in connection with the described methods may also apply equally to corresponding apparatuses for carrying out the described methods and vice versa. For example, if particular method steps are described, corresponding means may include means for performing the described meth...

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Abstract

A method (900) for processing an audio signal includes: decomposing (901) an audio signal (602a, 602b) comprising spatial information into a set of audio signal components; and processing (902) a first subset (606a) of the set of audio signal components according to a first processing scheme (603) and processing a second subset (606) of the set of audio signal components according to a second processing scheme (609) different from the first processing scheme (603), wherein the first subset (606a) comprises audio signal components corresponding to at least one frontal signal source (M) and the second subset (606) comprises audio signal components corresponding to at least one ambient signal source (SL, SR); and wherein the second processing scheme (609) is based on crosstalk cancellation.

Description

technical field [0001] The present invention relates to a method for processing audio signals and a mobile device applying such a method. The invention further relates to an audio system for creating an enhanced spatial effect in a mobile device, in particular an audio system applying crosstalk cancellation. Background technique [0002] There are many devices on the market with two converters, eg laptops, tablets, mobile phones and smartphones, as well as iPod or smartphone docking stations and sound bars for TV. In contrast to a conventional stereo system with two discrete speakers, the two transducers of such a unit are located in a single cabinet or enclosure and are usually placed very close to each other (due to the size of the unit, they are usually only a few centimeters apart, between 2 cm and 30 cm for mobile devices such as smartphones or tablets). For typical listening distances such as figure 1 The loudspeaker span angle θ described in a is small, i.e. less t...

Claims

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Application Information

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IPC IPC(8): H04S3/00H04S1/00
CPCH04S1/002H04S1/005H04S3/002H04S3/004H04S2400/01H04S2400/03H04S2400/05H04S2420/01H04S7/30
Inventor 彼得·格罗舍郎玥
Owner HUAWEI TECH CO LTD
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