发明名称 |
Method for restricting the output level in hearing apparatuses |
摘要 |
Psychoacoustic boundary conditions are to be better taken into account in the amplification of input signals of a hearing apparatus. To this end, a channel-specific compression characteristic curve is predetermined in a number of spectrally-separated processing channels of the hearing apparatus, which defines a relationship between an input level and an output level in the respective processing channel of the hearing apparatus. A respective input signal portion is amplified in each processing channel as a function of a channel-specific operating compression characteristic curve. A channel-specific input level threshold is predefined here for each processing channel. Finally, the respective channel-specific operating compression characteristic curve is then defined according to the predetermined channel-specific compression characteristic curve below the channel-specific input level threshold and the respective curve of the channel-specific operating compression characteristic curve is defined with a compression ratio of greater than 8 above the channel-specific input level threshold. |
申请公布号 |
US8831258(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201313857298 |
申请日期 |
2013.04.05 |
申请人 |
Siemens Medical Instruments Pte. Ltd. |
发明人 |
Dressler Oliver |
分类号 |
H04R25/00 |
主分类号 |
H04R25/00 |
代理机构 |
|
代理人 |
Greenberg Laurence A.;Stemer Werner H.;Locher Ralph E. |
主权项 |
1. A method of amplifying an input signal in a hearing apparatus, the method which comprises:
predefining a channel-specific compression characteristic curve in each of a plurality of spectrally-separated processing channels of the hearing apparatus, the compression characteristic curve defining a relationship between an input level and an output level in a respective processing channel of the hearing apparatus; predefining a channel-specific input level threshold for each processing channel; defining a respective channel-specific operating compression characteristic curve according to the predetermined channel-specific compression characteristic curve below the channel-specific input level threshold; defining a respective curve of the channel-specific operating compression characteristic curve with a compression ratio of greater than 8 above the channel-specific input level threshold; and amplifying a respective input signal portion of the hearing apparatus in each processing channel as a function of the channel-specific operating compression characteristic curve. |
地址 |
Singapore SG |