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Method and device for reproducing a binaural output signal generated from a monaural input signal

A technology for outputting signals and inputting signals, applied in the field of devices implementing the method, capable of solving problems such as unnatural listening events

Inactive Publication Date: 2009-09-09
SIEMENS ENTERPRISE COMM GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But traditional binaural headphones produce a more unnatural listening event (Hoerereignis), because the sound of the head and the sound of the outer ear are no longer affected

Method used

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  • Method and device for reproducing a binaural output signal generated from a monaural input signal

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Embodiment Construction

[0028] figure 1 A so-called "speaker's echo tolerance curve" is shown, which infers the speech quality with respect to the echoes to be found. The curve thereby allows acceptance judgment of the dialogue. Here, the abscissa is the mean echo transmission time (Mean Echo Transmission Time) T and the ordinate is the speaker's echo volume level TELR. Curve K1 shows the listening threshold (masked threshold), and curve K2 shows acceptable (Acceptable). This acceptable is equivalent to the curve at which disturbing echoes occur with a probability of 1%. Curve K3 shows the limit case, whereas curve K4 shows the limit case of two channels when the stereo speakers are arranged at an angle of 80°.

[0029] exist figure 2 Embodiments of the apparatus of the present invention are described in functional block diagrams. In this case, the sender's data terminal is identified with the reference designation B and the receiver's data terminal with the reference designation A. The receiv...

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Abstract

The invention relates to a method for reproducing, by means of at least a first and a second loudspeaker of a two-channel headset, in particular for VoIP applications, a sound produced by a monophonic input signal, produced by a first output signal and A method and an apparatus for a binaural output signal composed of a second output signal.

Description

technical field [0001] The invention relates to a method for reproducing a binaural output signal from a monophonic input signal, consisting of a first output signal and a second output signal, and a device for carrying out the method. Background technique [0002] Intelligent data devices for voice communication, such as PCs or PDAs, are increasingly being used in the modern communication world, the connection of which takes place, for example, via VoIP. [0003] Packet-based communication by means of VoIP and the use of so-called VoIP codecs connected thereto lead to undesired effects on the speech quality. For example, medium to high runtimes should be expected during signal transmission, resulting in audible echoes. In addition, reflections, whose runtimes are often higher and whose attenuation is lower than in natural environments, must be expected even in packet-based communication. Measures for suppressing interfering echoes are therefore preferably provided by usin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R5/033H04S5/00
CPCH04S2420/01H04S5/00
Inventor G·卢茨奥尼
Owner SIEMENS ENTERPRISE COMM GMBH & CO KG