AU2021106448A4 - The invention title is "Telecommunication Device with Speech Enhancement Facility" - Google Patents
The invention title is "Telecommunication Device with Speech Enhancement Facility" Download PDFInfo
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- AU2021106448A4 AU2021106448A4 AU2021106448A AU2021106448A AU2021106448A4 AU 2021106448 A4 AU2021106448 A4 AU 2021106448A4 AU 2021106448 A AU2021106448 A AU 2021106448A AU 2021106448 A AU2021106448 A AU 2021106448A AU 2021106448 A4 AU2021106448 A4 AU 2021106448A4
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- Prior art keywords
- hearing
- acoustic signals
- speech
- output
- signals
- Prior art date
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- 230000003595 spectral effect Effects 0.000 claims abstract description 28
- 208000032041 Hearing impaired Diseases 0.000 claims abstract description 26
- 230000004048 modification Effects 0.000 claims abstract description 7
- 238000012986 modification Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000001771 impaired effect Effects 0.000 claims abstract 6
- 238000001914 filtration Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 11
- 230000003190 augmentative effect Effects 0.000 claims description 8
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 claims description 2
- 230000001413 cellular effect Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 8
- 238000003199 nucleic acid amplification method Methods 0.000 description 8
- 208000016354 hearing loss disease Diseases 0.000 description 6
- 206010036626 Presbyacusis Diseases 0.000 description 3
- 208000009800 presbycusis Diseases 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000000721 basilar membrane Anatomy 0.000 description 1
- 230000005786 degenerative changes Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000010370 hearing loss Effects 0.000 description 1
- 231100000888 hearing loss Toxicity 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000026683 transduction Effects 0.000 description 1
- 238000010361 transduction Methods 0.000 description 1
Classifications
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- 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
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6025—Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
Abstract
A speech enhancement device for hearing impaired individuals, is disclosed. The speech
enhancement device includes a portable telecommunication device, a processor, a selection
switch, a microphone and an earphone. The processor is configured as a hearing aid that is
integrated with the portable telecommunication device for processing speech by transform
based filtering Further, the hearing aid is integrated with a graphical user interface. The
graphical unit interface and the processor adjust the characteristics of audio or speech signals
based on the audiogram history of the hearing, impaired individual. The device is capable of
forming a plurality of modified spectral channel signals for spectral modification and gain
adjustment for applying an output gain and amplifying the acoustic signals. Moreover, the
device includes a signal processing scheme for suppressing the residual noise that can prove
beneficial to the elderly hearing, impaired individuals. The present invention is particularly
applicable to telecommunication devices with hearing aid for hearing impaired individuals.
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Description
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Title of the Invention
Telecommunication Device with Speech Enhancement Facility
Technical field of the Invention
This invention pertains to telephonic and telecommunications devices and, more particularly it relates to telecommunications device with speech enhancement facility.
Background of the Invention
Telecommunication device comprises of portable device for receiving the acoustic signals from destination caller. The persons having hearing impairment, reduces the audio capabilities, cannot utilizes telecommunication devices such as mobile telephones, landline phones. Hearing impairment, in general, is broadly categorized as conductive and sensorineural depending upon the location of damage in the auditory system.
Sensorineural hearing impairment takes place due to damage to the transduction mechanism of the inner ear. Age related auditory dysfunction is commonly termed as presbycusis, which includes degenerative changes in the auditory system such as hardening of the basilar membrane. Age-related hearing loss includes high-frequency sensitivity loss, which disrupts speech comprehension in proportion to the sensitivity loss. It is often at ages 55 to 65 that the high frequency response in the speech range begins to be affected. Presbycusis patient usually know when they are being spoken to, but they may not always understand what is said. There is no known prevention for presbycusis. The net effect of passing a sound through a hearing aid is to make the sound louder through amplification. The hearing aid with amplification cannot correct discrimination or differentiation of words.
US 6,606,391 teach the filter bank structure which provides a flexible compromise between processing delay, filter sharpness, memory usage and band interaction. The filter bank has an adjustable number of bands which provides a selectable shift of band frequencies to one of two discrete sets of centre frequencies. The drawback associated with said prior art is the use of Discrete Fourier Transform in prior art for the processing as it is not capable for multiresolution analysis of signal. Also, as auditory filters represent octave frequency band, the prior art has same constant bandwidth for bands.
Summary of the Invention Telecommunication device with speech Enhancement facility, comprise of a portable device for receiving an acoustic signal from the destination caller. The portable device can include a mobile telephone, a land-based phone, a computer having Voice-Over-Internet-Protocol (VOIP) capabilities, or a variety of other telecommunication devices. The device can be implemented as any of a variety of fashions so long as content is conveyed using encoded electromagnetic signals. For examples, the device can be implemented using field programmable grid array (FPGA) or digital signal processor (DSP). The device can include a public switched telephone network (PSTN), a mobile telephone network, an Internet, an intranet, and the like. Further, any of a variety of communication devices, such as computers, modems, routers, switches, wireless access points, or the like, can be included within the device. Telecommunication device can include a user classifier with graphical user interface (GUI). The user classifier can classify a user as one of several designated classes, which include a class indicating a user is hearing impaired. Each class can be associated with a plurality of device settings, which are adjusted responsive to class selection. The setting can cause adjustments to GUI, to the digital signal processor or field programmable grid array of device. The device is programmed to divide the input signal into a plurality of spectral bands, determine an output gain for each channel based on audiogram and apply the output gain for each channel to form a plurality of modified spectral band signals, and combine the plurality of modifies spectral band signals to form an enhanced digital output signal for dichotic presentation. The telecommunication device with hearing aid consists of programmable memory loaded with computer program and includes memory interface for interfacing to programmable digital signal processor. A method for augmenting an acoustic signal, comprising the steps of a) defining user as hearing impaired, b) applying the output gain for each channel to the channel to form a plurality of modified spectral channel signals based on the history of audiogram of hearing-impaired persons, and/or c) combining the plurality of modifies spectral channel signals to form an modified output acoustic signal for dichotic presentation.
Brief description of the Invention
The present invention provides telecommunication device with hearing aid and a method for enhancing an acoustic signal. The said telecommunication device with speech enhancement facility for hearing impaired comprises of portable device, hearing aid with user interface, selection switch, microphone and earphone wherein said telecommunication device is interfaced with said hearing aid through said selection switch. Said microphone is interfaced with said telecommunication device and/or said hearing aid, while said earphone is interfaced with said hearing aid. Further said hearing aid comprises of Analog to Digital (A/D) convertor means, signal processing scheme, and Digital to Analog (D/A) convertor means. The signal processing scheme comprises by programmable Digital Signal Processor. The input acoustic signal via said microphone provided to said A/D means to get digital information and applied to said signal processing scheme for reduction of noise and to increase spectral resolution for dichotic presentation. The said hearing aid with user interface, said selection switch, said microphone and said earphone is also implemented by field programmable grid array. The portable device can include a mobile telephone, a land-based phone, a computer having Voice Over-Internet-Protocol (VOIP) capabilities, or a variety of other telecommunication devices. Said hearing aid further comprises of filters means for spectral modification and gain adjustment means for amplification. The separate output is provided to D/A means for analog signal and then to earphone for dichotic presentation (two different signal to different ear). The present invention provides a method for augmenting an acoustic signal. The invention addresses the problem by manipulation of the spectral composition of the signal to overcome some of the loss of spectral resolution, and to substitute to some extent for additional amplification. The invention serves to make acoustic signals more distinguishable for hearing impaired.
Detail Description of the invention
Figure 1 shows a schematic block diagram of a Telecommunication Device with speech enhancement facility for augmenting an acoustic signal in accordance with the present invention. Figure 2 shows a flowchart of a method of augmenting of acoustic signal. Figure 3a and 3b shows an arrangement of Graphical User Interface for hearing impairment used in said telecommunication device with speech enhancement facility. Referring now to the drawing wherein the showing is for the purpose of illustrating a preferred embodiment of the invention only, and not for the purpose of limiting same, now referring to figure 1, A Telecommunication Device with speech enhancement facility in accordance with this invention basically comprises of hearing aid with user interface means (1), selection switch means (2), portable device means (3), earphone (4), and microphone (5). The said telecommunication device with hearing aid facility comprises of portable device (3), hearing aid with user interface (1), selection switch (2), microphone (5) and earphone (4) wherein said telecommunication device is interfaced with said hearing aid through said selection switch. Said microphone is interfaced with said telecommunication device and/or said hearing aid, while said earphone is interfaced with said hearing aid. Further said hearing aid comprises of Analog to Digital (a/d) convertor means, signal processing scheme, and Digital to Analog (D/A) convertor means. The said signal processing scheme comprises by programmable Digital Signal Processor. The input acoustic signal via microphone provided to A/D means to get digital information and applied to hearing aid for hearing impaired to increase spectral resolution for dichotic presentation. The selection switch means is provided to have the selection facility for the hearing impaired, to get the improved acoustic signals from the destination caller on telecommunication device or near speaker. A hearing aid is comprising with wavelet packet (WP) filters means for spectral modification and gain adjustment means for amplification. The separate output is provided to D/A means for analog signal and then to microphone for dichotic presentation (two different signal to different ear). Now referring to figure 2, Method for augmenting an acoustic signal used in this invention manipulates the spectral composition of the signal to overcome some of the loss of spectral resolution, and to substitute to some extent for additional amplification. Method is used for the selection of acoustic signal for hearing impaired or user without hearing impairment, wherein method is also used to separate different hearing impaired. Method further involves spectral enhancement and/or gain adjustment for the incoming acoustic signals.
Now referring to figure 3(a) and (b), The user can be impelled with user selectable audio enhancement options from audiogram to determine as hearing impaired. The audiogram comprises with different frequencies ranges from 250 Hz to 4 kHz, and PTA (pure tone thresholds) for left and right ear. The options can include selection for incoming acoustic signals and GUI enhancement. Further, these options can be automatically applied without explicitly prompting the user. Telecommunication Device with speech enhancement facility consists of programmable memory loaded with computer program and includes memory interface for the interfacing to programmable digital signal processor. A method for augmenting an acoustic signal, comprising the steps of a) defining user as hearing impaired. b) applying output gain for each channel to the channel to form a plurality of modified spectral channel signals based on the history of audiogram of hearing-impaired persons, and/or c) combing the invention. Reference to details in this discussion is not intended to limit the scope of the claims to these details, or to the figures used to illustrate the invention.
Innovative Step
Innovative step 1. A speech enhancement device using reconfigurable architecture facilitates with speech intelligibility cellular technology rather than wireless network which would require for mobile app for enhancement which may which work within the limitation of amplification where in the proposed system integrated with telecom device work for sensorineural hearing-impaired prayer frequency components where frequency components are important with amplification 2. The hearing impaired is able to receive the speech with minimum latency as the proposed system is integrated as a hardware with telecom device whereas software algorithm requires their own time for exhibition hence latency would incur. 3. The cross interference in speech is taken care in the proposed system by considering the Doppler effect concept hence the proposed system is able to communicate easily and more relax 4. The user interface implemented allows to use the telecom device as user friendly for hearing impaired with feature of selection of different modes such as noisy, silent, adoptive environment requested by hearing impaired 5. The proposed system with adaptive Al based algorithm allows with different taste with device through it gives the advantage of speech intelligibility at any condition. This feature allows to device to use by any person does makes it programmable and general 6. The proposed system is capable for diotic and dichotic presentation of acoustic signal which eliminates the requirement of two hearing aids for hearing impaired 7. The adaptive speech enhancement algorithm is supported for number of spectral channels, selection of destination caller or nearby speaker, temporal resolution, selection of real audio, TV audio or music mode.
Claims (5)
1. A speech enhancement device for hearing impaired individuals comprising:
a portable telecommunication device using reconfigurable architecture facilitates with speech intelligibility cellular technology for receiving augmented acoustic signals by hearing, impaired individual from a destination caller;
a processor configured as a hearing aid integrating with the portable telecommunication device for processing speech by transform based filtering, and for hearing and incoming speech enhancement such that the processor being a digital signal processor or a field-programmable gate array processor speech with minimum latency;
a selection switch and a microphone interfacing the hearing aid and the portable telecommunication device, the selection switch selecting an audiogram having different frequencies and input acoustic signals by the hearing, impaired individual and the microphone thereby transferring input acoustic signals to a predefined convertor; and
an earphone interfacing with the hearing aid transferring the output acoustic signals into analog signals by another predefined convertor with no cross interference in speech is achieved using doppler effect noise reduction technique.
2. The speech enhancement device for hearing impaired individuals as claimed in claim 1, wherein the hearing aid integrating with the graphical unit interface having a wavelet packet (WP) filter for spectral modification, the graphical user interface thereby selecting specific frequencies with dichotic presentation or dietic presentation of acoustic signals.
3. The speech enhancement device for hearing impaired individuals as claimed in claim 1, wherein the hearing aid including a signal processing scheme and at least two predefined convertors, the signal processing scheme for suppressing the residual noise and increasing the spectral resolution by dichotic presentation of acoustic signals in accordance with the digital signal processor, a first analog to digital (A/D) converter transferring the input acoustic signals through the microphone for achieving digital information, and a second digital to analog (D/A) converter transferring the output acoustic signals into analog signals through the earphone for achieving dichotic presentation of acoustic signals. The system is with adaptive Al based algorithm allows with different taste with device through it gives the advantage of speech intelligibility at any condition.
4. The speech enhancement device for hearing impaired individuals as claimed in claim 1, wherein the wavelet packet (WP) filter forming a plurality of modified spectral channel signals for spectral modification and gain adjustment for applying an output gain and amplifying the acoustic signals based on the audiogram history of the hearing, impaired individual.
5. The speech enhancement device for hearing impaired individuals as claimed in claim 1, wherein the portable telecommunication device is a mobile telephone or a land- base phone or a computer having Voice-Over-Internet Protocol (VOIP) capabilities or a variety of other communication devices or implements with digital signal processor or with field programmable grid array.
The method of augmenting acoustic signals by a speech enhancement device for hearing impaired individuals comprising the steps of: a. activating a selection switch; b. dividing an input acoustic signals into a plurality of modified spectral channel signals including a step of applying the input acoustic signals to a bank of wavelet packet filters; c. amplifying the output acoustic signals by a gain adjustment based on the audiogram history of the hearing, impaired individual; d. applying spectral modification for frequency compression and gain adjustment forming a plurality of modified spectral channel signals for hearing impaired individuals; and e. combining the plurality of modified spectral channel signals thereby forming modified output acoustic signals for dichotic presentation or diotic presentation of acoustic signals. f. step of dividing the input acoustic signals into the plurality of modified spectral channel signals including spectral modification and gain adjustment.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021106448A AU2021106448A4 (en) | 2021-08-23 | 2021-08-23 | The invention title is "Telecommunication Device with Speech Enhancement Facility" |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021106448A AU2021106448A4 (en) | 2021-08-23 | 2021-08-23 | The invention title is "Telecommunication Device with Speech Enhancement Facility" |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021106448A4 true AU2021106448A4 (en) | 2021-11-25 |
Family
ID=78610580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021106448A Ceased AU2021106448A4 (en) | 2021-08-23 | 2021-08-23 | The invention title is "Telecommunication Device with Speech Enhancement Facility" |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021106448A4 (en) |
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2021
- 2021-08-23 AU AU2021106448A patent/AU2021106448A4/en not_active Ceased
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| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |