DE102006062246A1 - Earphone, particularly in-ear phone, comprises sound receiver, which is provided for receiving sound in auditory canal and electroacoustic transducer, which is provided for reproducing audio signals - Google Patents

Abstract

The earphone comprises an ear adaptor (O) for introducing into an auditory canal (G) of a user. The ear adaptor in the introduced condition seals the auditory canal. A sound receiver (M) is provided for receiving the sound in the auditory canal. An electroacoustic transducer (W) is provided for reproducing audio signals. A compensation unit (KE) is provided for controlling the electroacoustic transducer for reducing the sound pressure (P) in auditory canal depending upon the sound recorded by the sound receiver in the auditory canal.

Description

The The present invention relates to a handset, in particular an in-ear Handset.

If the auditory canal of a human, for example, through an in-ear listener, through an earmold or the like is closed, then sound can no longer be transferred unhindered to the eardrum. on the other hand can be the body's own sound, d. H. Structure-borne sound, through the closed ear canal not be blasted, so that your own language, and swallowing chewing sounds as well as the breathing is perceived as significantly louder. This effect is called a so-called occlusion effect. By the occlusion effect gets through the skull bone passed on sound as unpleasant and dull felt. Thereby, that the ear canal is closed, it can also no longer to a pressure equalization come.

Around To enable a corresponding pressure equalization, in-ear listeners are typically with a ventilation hole provided so that air through this ventilation hole both on and off can escape.

US 6,683,965 B1 shows an in-ear earphone that has a projection that can be inserted into the ear canal. In this projection, an electro-acoustic transducer and a microphone is provided. The handset also has a noise compensation circuit which, together with the electroacoustic transducer and the microphone, enables noise compensation. To avoid the above-mentioned occlusion effect, the in-ear earpiece has a vent or vent hole.

It It is therefore an object of the present invention to provide an in-ear receiver, which at least partially corrects the occlusion effect can.

These The object is achieved by an in-ear receiver according to claim 1.

The The present invention relates to the idea of the occlusion effect, which occurs because the ear canal, for example, by an ear fitting is closed, reduce. For this purpose, a microphone is in the Ohranpassstück and an electroacoustic transducer is provided. The sound transducer is controlled in such a way that occurring in the ear canal sound waves not reflected but absorbed. Thus, a sound level inside the ear canal and reduced to the eardrum. Acoustically considered it is therefore an adaptation of the terminating impedance on auditory input or in the ear canal.

Further Embodiments of the invention are the subject of the dependent claims.

embodiments and advantages of the invention will be described below with reference to FIGS Drawing closer explained.

1 shows a schematic sectional view of an ear canal with a handset according to the invention.

1 shows a schematic sectional view of an ear canal with a handset according to the invention. The handset has an ear fitting piece O with a sound pickup M and a sound transducer W.

The Ohranpassstück O or the in-ear listener is designed such that the entrance of the ear canal G (tightly) is closed, leaving a closed volume through the ear canal G, the eardrum T and the Ohranpassstück O trains. In this volume there is a certain sound pressure p, since the Ohranpassstück O no Vent hole, d. H. no continuous connection between the ear-end and the outside the listener, having.

The Ohranpassstück may for example have foam. The ear fitting can Furthermore, an electronic unit or compensation unit KE for processing the recorded by the transducer M signals and the Control the operation of the transducer W have.

The signals recorded by the sound pickup M within the meatus are supplied to a compensation unit KE, which records the recorded Subtracts signals from the audio signals to be reproduced and the corresponding result to the transducer W outputs to the sound pressure in the ear canal to reduce and possibly absorb sound waves in the ear canal G.

Of the electro-acoustic sound transducer W is in the in-ear listener such arranged that he generated the sound in the direction of the auditory canal or in the direction of the ear-end, when the in-ear listener in the ear canal is located and the electro-acoustic transducer W accordingly is operated. The transducer thus radiates the sound in the ear canal without a volume in front of the transducer in the housing of the In-ear listener available is.

Of the above-described in-ear listener preferably has no vent hole on.

Of the Sound pickup M and the transducer W can also be used as a combined Actuator sensor system can be implemented.

Claims (4)

handset, especially in-ear listeners, With an ear fitting (O) for insertion in an ear canal (G) of a user, wherein the Ohranpassstück (O) in the inserted state the ear canal (G) seals, a sound pickup (M) for picking up sound in the ear canal (G), an electroacoustic transducer (W) for reproducing Audio signals, and a compensation unit (K) for controlling the electroacoustic transducer to reduce the sound pressure (P) in the ear canal (G) depending on the sound recorded by the transducer in the ear canal (G). receiver according to claim 1, wherein the electro-acoustic transducer (W) to the ear-side End of the phone radiates. receiver according to claim 1 or 2, wherein the Ohranpassstück (O) no vent hole having the ear-side end of the earphone with the outside of the listener combines. receiver according to one of the preceding claims, wherein the transducer (M) and the transducer (W) as a combined Actuator sensor system is designed.