CA2386653A1 - Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony - Google Patents
Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony Download PDFInfo
- Publication number
- CA2386653A1 CA2386653A1 CA002386653A CA2386653A CA2386653A1 CA 2386653 A1 CA2386653 A1 CA 2386653A1 CA 002386653 A CA002386653 A CA 002386653A CA 2386653 A CA2386653 A CA 2386653A CA 2386653 A1 CA2386653 A1 CA 2386653A1
- Authority
- CA
- Canada
- Prior art keywords
- phase
- individual
- determining
- bptd
- ear
- 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.)
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/04—Time compression or expansion
-
- 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
- H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
- H04R25/552—Binaural
Abstract
Pathological binaural phase time delay (PBTD) asynchrony is measured at a variety of frequencies and to speech stimuli to develop a BPTD profile for a subject. Then a corrective device (600, 1000) is designed to apply clinical PBTD to compensate for the subject's pathological BPTD. An electronic device (500) is used to measure the subject's ability to comprehend words at a variety of relative time delays between ears to estimate the ideal overall relative time delay. The optimal relative phase shift at a variety of frequencies is also measured.
An electronic device (600) may be used to correct the pathological BPTD by delaying sound in different frequency bands differently to the target ear, according to the BPTD
profile, or a passive filtered earplug (1000) may be used to correct smaller amounts of BPTD.
An electronic device (600) may be used to correct the pathological BPTD by delaying sound in different frequency bands differently to the target ear, according to the BPTD
profile, or a passive filtered earplug (1000) may be used to correct smaller amounts of BPTD.
Claims (22)
1. Apparatus for compensating for a measured binaural phase time delay profile (BPTD) of an individual comprising:
means (704) for delaying sound signals to an ear of the individual according to the BPTD; and means (706) for applying different phase shifts at different frequencies according to the BPTD.
means (704) for delaying sound signals to an ear of the individual according to the BPTD; and means (706) for applying different phase shifts at different frequencies according to the BPTD.
2. The apparatus of claim 1, wherein the means for delaying comprises a passive earplug (1000) having ducting (1002) which delays propagation of sound relative to air.
3. The apparatus of claim 2, wherein the means for applying phase shifts comprises at least one acoustical filter element (1004) within the ear plug.
4. The apparatus of claim 2, wherein the duct is fluid filled.
5. The apparatus of claim 1, wherein the means for delaying and the means for applying phase shifts are implemented as an electronic hearing aid (600).
6. The apparatus of claim 5, wherein the hearing aid is a digital hearing aid and includes an analog to digital converter (ADC) (606), a digital signal processor (DSP) (608), and a digital to analog converter (DAC) (610), the DSP implementing the means for delaying and the means for applying phase shifts.
7. The apparatus of claim 6, wherein the means for implementing phase shift profile comprises a FIR filter (806).
8. The apparatus of claim 6, wherein the DSP implements other audio signal processing (808) as well as the means for delaying and the means for applying phase shifts.
9. The apparatus of claim 8, wherein the other audio processing implemented includes noise reduction.
10. The apparatus of claim 8, wherein the other audio processing implemented includes applying amplitude changes to the sound signals.
11. The apparatus of claim 1, further including means (616) for modifying the means for applying phase shifts according to environmental conditions.
12. Apparatus for developing a binaural phase time delay profile (BPTD) of an individual comprising:
means (112) for determining an overall relative delay for the individual; and means (108) for determining a phase shift profile for the individual.
means (112) for determining an overall relative delay for the individual; and means (108) for determining a phase shift profile for the individual.
13. The apparatus of claim 12, wherein the means for determining the overall relative delay includes:
means for separating spoken words into high frequency and low frequency bands;
means for delaying one of the bands relative to the other band;
means for presenting the delayed band to one ear and the undelayed band to the other ear;
means for measuring the individual's comprehension of the words at a variety of delays; and means for determining the overall phase delay at which comprehension is optimal.
means for separating spoken words into high frequency and low frequency bands;
means for delaying one of the bands relative to the other band;
means for presenting the delayed band to one ear and the undelayed band to the other ear;
means for measuring the individual's comprehension of the words at a variety of delays; and means for determining the overall phase delay at which comprehension is optimal.
14. The apparatus of claim 12 wherein the means for determining a phase shift profile includes:
means for providing a pure tone;
means for dividing the pure tone into two channels;
means for applying a phase shift to one of the channels;
means for presenting the phase shifted channel to one ear, and the non-phase shifted channel to the other ear;
means for varying the amplitude and the frequency of the tone;
means for finding a threshold (lowest amplitude at which the tone is heard) for various frequency tones at various phase shifts; and means for assigning an optimal phase shift at the various frequency tones according to the lowest amplitude at which each tone is heard.
means for providing a pure tone;
means for dividing the pure tone into two channels;
means for applying a phase shift to one of the channels;
means for presenting the phase shifted channel to one ear, and the non-phase shifted channel to the other ear;
means for varying the amplitude and the frequency of the tone;
means for finding a threshold (lowest amplitude at which the tone is heard) for various frequency tones at various phase shifts; and means for assigning an optimal phase shift at the various frequency tones according to the lowest amplitude at which each tone is heard.
15. The apparatus of claim 22, wherein the means for determining an overall relative delay and the means for determining a phase shift profile are implemented as an electronic device (500) including:
means (512) for varying overall relative delay;
means (514) for varying phase shift profile; and means for assessing the individual (520) at various overall relative delays and phase shift profiles to determine an optimal overall relative delay and an optimal phase shift profile.
means (512) for varying overall relative delay;
means (514) for varying phase shift profile; and means for assessing the individual (520) at various overall relative delays and phase shift profiles to determine an optimal overall relative delay and an optimal phase shift profile.
16. The apparatus of claim 12, further including means for determining a amplitude modification profile for the individual.
17. A method for developing a binaural phase time delay profile (BPTD) of an individual comprising the steps of:
determining an overall relative delay for the individual; and determining a phase shift profile for the individual.
determining an overall relative delay for the individual; and determining a phase shift profile for the individual.
18. The method of claim 17, wherein the step of determining the overall phase delay includes:
separating spoken words into high frequency and low frequency bands;
delaying one of the bands relative to the other band;
presenting the delayed band to one ear and the undelayed band to the other ear;
measuring the individual's comprehension of the words at a variety of delays;
and determining the overall phase delay at which comprehension is optimal.
separating spoken words into high frequency and low frequency bands;
delaying one of the bands relative to the other band;
presenting the delayed band to one ear and the undelayed band to the other ear;
measuring the individual's comprehension of the words at a variety of delays;
and determining the overall phase delay at which comprehension is optimal.
19. The method of claim 17 wherein the step of determining a phase shift profile includes:
providing a pure tone;
dividing the pure tone into two channels;
applying a phase shift to one of the channels;
presenting the phase shifted channel to one ear, and the non-phase shifted channel to the other ear;
varying the amplitude and the frequency of the tone;
finding a threshold (lowest amplitude at which the tone is heard) for various frequency tones at various phase shifts; and assigning an optimal phase shift at the various frequency tones according to the lowest amplitude at which each tone is heard.
providing a pure tone;
dividing the pure tone into two channels;
applying a phase shift to one of the channels;
presenting the phase shifted channel to one ear, and the non-phase shifted channel to the other ear;
varying the amplitude and the frequency of the tone;
finding a threshold (lowest amplitude at which the tone is heard) for various frequency tones at various phase shifts; and assigning an optimal phase shift at the various frequency tones according to the lowest amplitude at which each tone is heard.
20. The method of claim 17, further including the step of performing conventional hearing tests on the individual.
21. The method of compensating for a measured binaural phase time delay profile (BPTD) of an individual comprising the steps of:
delaying (804) sound signals to an ear of the individual according to the BPTD; and applying different phase shifts (806) at different frequencies according to the BPTD.
delaying (804) sound signals to an ear of the individual according to the BPTD; and applying different phase shifts (806) at different frequencies according to the BPTD.
22. The method of claim 21, further including the step (808) of applying amplitude modifications at different frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2661798A CA2661798C (en) | 1999-10-05 | 2000-10-05 | Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15777599P | 1999-10-05 | 1999-10-05 | |
| US60/157,775 | 1999-10-05 | ||
| PCT/US2000/027460 WO2001026420A2 (en) | 1999-10-05 | 2000-10-05 | Apparatus and method for mitigating hearing impairments |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2661798A Division CA2661798C (en) | 1999-10-05 | 2000-10-05 | Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2386653A1 true CA2386653A1 (en) | 2001-04-12 |
| CA2386653C CA2386653C (en) | 2010-03-23 |
Family
ID=22565233
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2386653A Expired - Fee Related CA2386653C (en) | 1999-10-05 | 2000-10-05 | Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony |
| CA2661798A Expired - Fee Related CA2661798C (en) | 1999-10-05 | 2000-10-05 | Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2661798A Expired - Fee Related CA2661798C (en) | 1999-10-05 | 2000-10-05 | Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1234480B1 (en) |
| AT (1) | ATE257637T1 (en) |
| AU (1) | AU7859500A (en) |
| CA (2) | CA2386653C (en) |
| DE (1) | DE60007659D1 (en) |
| WO (1) | WO2001026420A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823314A (en) * | 2021-08-12 | 2021-12-21 | 荣耀终端有限公司 | Voice processing method and electronic equipment |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7120258B1 (en) | 1999-10-05 | 2006-10-10 | Able Planet, Inc. | Apparatus and methods for mitigating impairments due to central auditory nervous system binaural phase-time asynchrony |
| JP4939722B2 (en) * | 2000-07-14 | 2012-05-30 | ジーエヌ リザウンド エー／エス | Synchronous stereo auditory system |
| EP2227042B1 (en) | 2005-05-03 | 2011-12-28 | Oticon A/S | System and method for sharing network resources between hearing devices |
| WO2015023751A1 (en) * | 2013-08-13 | 2015-02-19 | The Children's Hospital Philadelphia | Device for language processing enhancement in autism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4556069A (en) * | 1983-03-15 | 1985-12-03 | Energy Optics, Inc. | Method and apparatus for measuring differential auditory system |
| AU625633B2 (en) * | 1987-05-11 | 1992-07-16 | Jampolsky, David L. | Hearing aid for asymmetric hearing perception |
| CA2235067C (en) * | 1995-12-20 | 2004-11-23 | Decibel Instruments, Inc. | Spatialization for hearing evaluation |
| EP0915639A1 (en) * | 1999-01-05 | 1999-05-12 | Phonak Ag | Method for binaural adjusting of hearing aids |
-
2000
- 2000-10-05 WO PCT/US2000/027460 patent/WO2001026420A2/en active IP Right Grant
- 2000-10-05 CA CA2386653A patent/CA2386653C/en not_active Expired - Fee Related
- 2000-10-05 AU AU78595/00A patent/AU7859500A/en not_active Abandoned
- 2000-10-05 DE DE60007659T patent/DE60007659D1/en not_active Expired - Lifetime
- 2000-10-05 CA CA2661798A patent/CA2661798C/en not_active Expired - Fee Related
- 2000-10-05 EP EP00968722A patent/EP1234480B1/en not_active Expired - Lifetime
- 2000-10-05 AT AT00968722T patent/ATE257637T1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113823314A (en) * | 2021-08-12 | 2021-12-21 | 荣耀终端有限公司 | Voice processing method and electronic equipment |
| CN113823314B (en) * | 2021-08-12 | 2022-10-28 | 北京荣耀终端有限公司 | Voice processing method and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE60007659D1 (en) | 2004-02-12 |
| CA2661798C (en) | 2013-12-10 |
| EP1234480B1 (en) | 2004-01-07 |
| AU7859500A (en) | 2001-05-10 |
| WO2001026420A2 (en) | 2001-04-12 |
| WO2001026420A3 (en) | 2002-01-31 |
| CA2661798A1 (en) | 2001-04-12 |
| EP1234480A2 (en) | 2002-08-28 |
| CA2386653C (en) | 2010-03-23 |
| ATE257637T1 (en) | 2004-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20151005 |