JPS5769000A - Frequency division hearing aid - Google Patents

Frequency division hearing aid

Info

Publication number
JPS5769000A
JPS5769000A JP14502280A JP14502280A JPS5769000A JP S5769000 A JPS5769000 A JP S5769000A JP 14502280 A JP14502280 A JP 14502280A JP 14502280 A JP14502280 A JP 14502280A JP S5769000 A JPS5769000 A JP S5769000A
Authority
JP
Japan
Prior art keywords
audio signal
input
processing section
section
output
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14502280A
Other languages
Japanese (ja)
Inventor
Shigeru Egashira
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP14502280A priority Critical patent/JPS5769000A/en
Publication of JPS5769000A publication Critical patent/JPS5769000A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To allow sufficient audio recognition with a simple constitution, by providing a time axis conversion processing section and a filter section with an audio signal input and output sections so that the user can select suitable state against environment. CONSTITUTION:An audio signal from a microphone or a reception coil 1 is applied to an output limit circuit 3, the audio signal is limited to a precribed level at a circuit 3, and it is inputted to a time axis conversion processing section via an HPF4. the audio signal frequency-divided at this processing section 5 is applied to an LPF6 to reject clock noise and waveform connection noise and to adjust the frequency characteristics through the addition to an HPF7, and the audio signal is applied to an ear-phone or speaker 2 via an amplifier 8. The input section for the audio signal, time axis conversion processing section 5, output section and the 2nd order or more RC active filter are provided, and the maximum value of the input and output gain between 0.5-1.5kHz is made greater than the minimum value of the input and output gain between 5-15kHz by 20dB or more, allowing the user to select the state suitable for the environment.
JP14502280A 1980-10-15 1980-10-15 Frequency division hearing aid Pending JPS5769000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14502280A JPS5769000A (en) 1980-10-15 1980-10-15 Frequency division hearing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14502280A JPS5769000A (en) 1980-10-15 1980-10-15 Frequency division hearing aid

Publications (1)

Publication Number Publication Date
JPS5769000A true JPS5769000A (en) 1982-04-27

Family

ID=15375615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14502280A Pending JPS5769000A (en) 1980-10-15 1980-10-15 Frequency division hearing aid

Country Status (1)

Country Link
JP (1) JPS5769000A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689818A (en) * 1983-04-28 1987-08-25 Siemens Hearing Instruments, Inc. Resonant peak control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689818A (en) * 1983-04-28 1987-08-25 Siemens Hearing Instruments, Inc. Resonant peak control

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