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Techniques for determining hearing threshold
专利权人:
Ville Mäkinen
发明人:
Ville Mäkinen
申请号:
US12516729
公开号:
US08457730B2
申请日:
2007.11.08
申请国别(地区):
US
年份:
2013
代理人:
摘要:
A computerized method for determining a test subjects (TS) hearing threshold (HT). An acoustic stimulus (AS, 102) is applied the test subjects (TS) ear. The stimulus intensity is increased during a ramp, with a predetermined dependency on time, such that the intensity begins below the hearing threshold and ends above it. The test subjects brain response (104), which includes a transient brain response (TR)1 is non-invasively recorded during the ramp section. The stimulus-response cycle is repeated several times. The recorded brain responses and stored a-priori information on transient brain response to the acoustic stimulus are used to determine a combined time interval between the acoustic stimulus and the transient brain response. The test subjects hearing threshold is determined based on the predetermined dependency on time of the intensity during the ramp and the combined time interval between the acoustic stimulus and the transient brain response.
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