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Eadphone apparatus and sound reproduction method for the same

A technology for sound reproduction and earphones, which is applied in earphone/earphone accessories, frequency/direction characteristic devices, two-channel systems, etc.

Inactive Publication Date: 2012-08-29
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, even if an attempt is made to deliver the optimum characteristic to the entrance of the external auditory canal or the surface of the eardrum, reflections will disturb this characteristic
Therefore, there is a disadvantage that it is difficult to stably obtain satisfactory sound image localization

Method used

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  • Eadphone apparatus and sound reproduction method for the same
  • Eadphone apparatus and sound reproduction method for the same
  • Eadphone apparatus and sound reproduction method for the same

Examples

Experimental program
Comparison scheme
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no. 1 example

[0046] 2. Second Embodiment

no. 3 example

[0048]

[0049] [Configuration example of a stereo headphone system]

[0050] figure 1 A configuration example of the stereo headphone system 10 according to the first embodiment is shown. The stereo headphone system 10 has an input terminal 101 , an A / D converter 102 , a signal processing unit 103 , D / A converters 104L and 104R, amplifiers 105L and 105R, and a headphone unit 106 .

[0051] The input terminal 101 is a terminal to which the sound signal SA is input. The A / D converter 102 converts the audio signal SA input to the input terminal 101 from an analog signal into a digital signal for transmission. The signal processing unit 103 performs filtering to obtain the left channel sound signal SL and the right channel sound signal SR from the sound signal SA. Specifically, the signal processing unit 103 includes a filter (filter 1) 103L for obtaining the left channel sound signal SL from the sound signal SA and a filter (filter 1) for obtaining the right channel sound s...

no. 2 example

[0086] [Configuration example of a stereo headphone system]

[0087] Figure 17 A configuration example of the stereo headphone system 10A according to the second embodiment is shown. exist Figure 17 in, right and figure 1 and 11 Components corresponding to those in are given the same reference numerals, and detailed descriptions thereof will be omitted as appropriate.

[0088] The stereo headphone system 10A has an input terminal 101 , an A / D converter 102 , a signal processing unit 103 , D / A converters 104L and 104R, amplifiers 105L and 105R, and a headphone unit 106 . In addition, the stereo headphone system 10A has delay devices 121L and 121R and level adjusters 122L and 122R between the signal processing unit 103 (filters 103L and 103R) and the D / A converters 104L and 104R.

[0089] In the stereo headphone system 10A, the headphone unit 106 has the sensor 131 that detects the state of the head of the headphone user (listener). The sensor 131 is an angular velocity ...

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Abstract

A headphone apparatus includes sound reproduction units which respectively reproduce sound signals and are arranged so as to be separated from ear auricles of a headphone user, wherein each of the sound reproduction unit is configured by a speaker array including a plurality of speakers.

Description

technical field [0001] The present invention relates to an earphone device and a sound reproduction method for the earphone device, and in particular, to an earphone device and the like for reproducing a two-channel sound signal. Background technique [0002] In the related art, there is a sound reproduction method according to which an earphone user (listener) wears earphones on his / her head to cover both ears and listens to sound signals (acoustic signals) from both ears. According to this sound reproduction method, a so-called lateralization phenomenon occurs, and the reproduced sound image remains within the listener's head even when the signal from the signal source is a stereo signal. [0003] On the other hand, as a sound reproduction method used in headphones, there is also a sound reproduction method of binaural collection. The sound reproduction scheme for binaural collection is as follows. Specifically, loudspeakers called artificial head loudspeakers are provid...

Claims

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Application Information

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IPC IPC(8): H04R1/10
CPCH04R1/1091H04R1/40H04R3/12H04R2430/20H04S7/30H04S2400/11H04R1/10H04S1/00
Inventor 山田裕司今誉冲本越
Owner SONY CORP