EP1885156B1 - Prothèse auditive avec générateur de signaux audio - Google Patents

Prothèse auditive avec générateur de signaux audio Download PDF

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Publication number
EP1885156B1
EP1885156B1 EP07112124.8A EP07112124A EP1885156B1 EP 1885156 B1 EP1885156 B1 EP 1885156B1 EP 07112124 A EP07112124 A EP 07112124A EP 1885156 B1 EP1885156 B1 EP 1885156B1
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EP
European Patent Office
Prior art keywords
audio signal
signal
tone
hearing aid
sound
Prior art date
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EP07112124.8A
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German (de)
English (en)
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EP1885156A3 (fr
EP1885156A2 (fr
Inventor
Roland Barthel
Wolfgang Sörgel
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Sivantos GmbH
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Siemens Audioligische Technik GmbH
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Publication of EP1885156A2 publication Critical patent/EP1885156A2/fr
Publication of EP1885156A3 publication Critical patent/EP1885156A3/fr
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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
    • 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
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
    • 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
    • H04R25/30—Monitoring or testing of hearing aids, e.g. functioning, settings, battery power
    • H04R25/305—Self-monitoring or self-testing

Definitions

  • the invention relates to a hearing aid with at least one sound receiver and a sound generator, wherein the at least one sound receiver is designed to receive sound waves and to generate a microphone signal representing the received sound waves.
  • the hearing aid also has a transmission unit which is connected on the input side to the at least one sound receiver and on the output side to the sound generator.
  • the transmission unit is designed to receive the microphone signal on the input side and to generate a power signal depending on the microphone signal received on the input side, which at least partially represents the microphone signal.
  • the sound generator is designed to receive the power signal on the input side and to generate a sound as a function of the power signal received on the input side, which corresponds to the power signal.
  • Hearing aids known from the prior art can generate an acknowledgment tone in response to an event.
  • This acknowledgment tone is often perceived as unpleasant or not perceived by a user of the hearing aid when a frequency of the acknowledgment tone falls within a frequency range at which the user's hearing is damaged.
  • a Tinnitusmasker with a Tonsignalgenerator which can generate audio signals for masking a tinnitus by means of a Tonsignalgenerators that can be generated according to a stored in the memory calculation rule and spectral, temporal or level are changed by means of signal shaping to adapt to tinnitus therapy can.
  • a hearing aid which can reproduce confirmation signals as stored in a memory sounds by means of a tone signal generator, either as a stored frequency to be generated at a certain time or as a compressed audio file.
  • the audio frequency generator can generate a trained as a speech signal audio frequency signal.
  • the audio frequency signal can be reproduced via the receiver of the hearing aid.
  • a hearing aid with a sound signal generator which can generate an electrical signal in response to an event signal generated by a test module, wherein the event signal represents a state of charge of a battery connected to the hearing aid.
  • the sound signal can be played back via a receiver of the hearing aid.
  • a hearing aid with a speech signal generator is known, which is connected to a receiver of the hearing aid and can generate a speech signal as a function of a selected transmission parameter of the hearing aid and play it over the listener.
  • a hearing aid which can generate a sound verification signal and reproduce it via a receiver of the hearing aid.
  • the tone verification signal may be generated in response to a successful hearing aid programming procedure.
  • the object underlying the invention is therefore to provide a hearing aid, which allows improved communication with a user of the hearing aid.
  • the audio signal has a plurality of mutually different frequencies of a frequency range. This advantageously has the effect that the user with a damaged hearing can perceive the audio signal, which is provided in particular for communicating with the user.
  • the audio signal unit has at least one tone signal generator.
  • the at least one tone signal generator is configured to generate the audio signal with at least one fundamental frequency representing a tone and with harmonics of the fundamental frequency.
  • the tone signal generator can for this purpose have at least one input for a generation parameter and can be designed to generate the audio signal in dependence on the at least one generation parameter.
  • the at least one tone signal generator may generate a sequence of tone signals, each representing a tone having a fundamental frequency and harmonics of the fundamental frequency, and which together form the audio signal. In this way, advantageously in memory-saving manner, a melody represented by the audio signal can be generated.
  • the audio signal represents an instrumental and / or vocal sound.
  • the audio signal can be perceived by the user of the hearing aid as particularly pleasant.
  • an instrumental or a vocal sound to a plurality of frequencies of a frequency range and is thus formed broadband.
  • the user of the hearing aid can thereby still perceive the audio signal well with a damaged hearing.
  • the at least one tone signal generator is designed to generate the audio signal at least partially by means of frequency modulation synthesis.
  • the audio signal unit can advantageously at least one instrumental sound in a high approximation emulate a natural sound of at least one instrument.
  • Exemplary embodiments for an instrumental sound may be, for example, an instrumental sound of a keyboard instrument, in particular a piano sound, a harpsichord sound, an organ sound or a sound of a wind instrument, in particular a flute, an oboe, a bassoon, a trumpet, a trombone, a horn, a clarinet or a Stringed instruments, in particular a violin, a viola, a cello or a double bass, or a plucking instrument, in particular a mandolin, a guitar in particular electric guitar, a zither, or a percussion instrument, in particular a drum, a timpani, a pelvis, a cowbell, a triangle or a castanet.
  • a keyboard instrument in particular a piano sound, a harpsichord sound, an organ sound or a sound of a wind instrument, in particular a flute, an oboe, a bassoon, a trumpet, a trombone
  • An audio signal may represent a melody comprising a plurality of timewise and / or consecutive sounding tones or chords, wherein a sound represents a vocal or instrumental sound.
  • An instrumental sound represented by an audio signal may comprise at least one tone which forms an interval, for example a prime, second, third, fourth, fifth, sixth, seventh, octave, and other intervals, in particular each pure, diminished, overly or small or large ,
  • the audio signal unit may have at least two, preferably a plurality of tone signal generators.
  • the audio signal unit is configured to generate the audio signal by means of a waveguide model, by which a natural waveguide is modeled in a musical instrument.
  • an audio signal representing a vowel sound may represent a vowel sound of at least one human voice or a plurality of human voices.
  • the audio signal represents a noise signal.
  • a noise signal may represent white noise, pink noise, in particular, a third-octave noise, or noise limited by another frequency interval.
  • the at least one tone signal generator is designed to generate the audio signal at least partially by means of amplitude modulation.
  • a tremolo for the audio signal can be generated, so that the audio signal can be advantageously perceived by the user of possible disturbing background noise.
  • the tone signal generator can for this purpose have a tremolo song which is designed for amplitude modulation.
  • the at least one sound signal generator comprises a vibrato song, which is designed to generate the audio signal at least partially by means of an additional frequency modulation.
  • a vibrato can advantageously be formed so that the audio signal can be advantageously perceived by the user of possible disturbing background noises.
  • an audio signal section of the audio signal which represents a tone has an amplitude envelope, wherein an end section of the audio signal section has a falling amplitude envelope.
  • an audio signal in particular the amplitude envelope of the audio signal, can advantageously decay gradually, which can be perceived as pleasant by the user.
  • an amplitude envelope of the end portion of the audio signal portion exponentially decays.
  • sounds generated by percussion instruments such as a xylophone, a metal fron, a triangle tone, a drum sound, a drum sound, a bell sound, a gong tone, or one of the aforementioned plucked instruments or one of a piano generated sound.
  • the audio signal unit has an input for an event signal and is designed to generate the audio signal in dependence on the event signal.
  • an event signal may represent, for example, an acknowledgment of the hearing aid for a successfully executed user interaction.
  • the hearing aid can generate the event signal after a successful change to another hearing program.
  • An event signal may advantageously represent a status of a process running in the hearing aid.
  • the hearing aid may generate the event signal in response to an electrical charge remaining in a battery of the hearing aid.
  • the hearing aid can generate an event signal that corresponds to a used battery charge.
  • the event signal corresponding to the spent battery charge may be a predetermined audio signal having a predetermined tune or a predetermined one Instrumental sound represented, in particular with a decreasing tone frequency to be assigned.
  • an audio signal representing a telephone ringing, in particular a telephone bell may be associated with an event representing a change to a telephone program.
  • a noise representative signal may be associated with an event representing a change in a noise program.
  • the audio signal is formed by samples which each represent an audio signal amplitude value at a sampling instant.
  • the hearing aid can have a memory for a plurality of audio signal data records which respectively represent mutually different audio signals.
  • the hearing aid in particular the audio signal unit having a digital-to-analog converter, which is designed to generate an audio signal in response to an input side received audio signal record.
  • Fig. 1 schematically shows an embodiment of a hearing aid 1.
  • the hearing aid 1 has a sound receiver 3 and a sound generator 5.
  • the sound generator 5 is connected via a connecting line 6 to a transmission unit 7.
  • the transmission unit 7 is connected on the input side via a connecting line 8 to the sound receiver 3 and the output side via the connecting line 6 to the sound generator 5.
  • the operation and interaction of the transmission unit 7, the sound receiver 3, and the sound generator 5 and their interaction is as already explained above.
  • the transmission unit 7 has an input 4 for an audio signal and is designed to generate a power signal which represents the audio signal and to send this output side via the connecting line 6 to the sound generator 15.
  • the hearing aid 1 has an audio signal unit 9, which is connected on the output side to the input 4 for the audio signal.
  • the audio signal unit 9 is designed to generate an audible signal perceptible by a human ear, which has a plurality of mutually different frequencies of a frequency range, as a function of an event signal received on the input side.
  • the event signal represents an event, for example a status of the hearing aid 1, in particular a status of an operating sequence of the hearing aid 1, for example a state of charge of a battery connected to the hearing aid 1 or a reaction of the hearing aid 1 to a user interaction.
  • the audio signal unit 9 has a tone signal generator 11, a tone signal generator 13 and a tone signal generator 15.
  • the tone signal generator 11, the tone signal generator 13 and the tone signal generator 15 may each be formed by at least two individual tone signal generators.
  • An exemplary embodiment for a single tone signal generator is shown in FIG FIG. 2 represented and designated by the reference numeral 43.
  • the tone signal generators 11, 13 and 15 are each designed to generate a tone signal as a function of generation parameters received on the input side by means of modulation synthesis, and in particular with an additional frequency modulation and / or amplitude modulation, and to output this tone on the output side.
  • the audio signal can be formed from a sum of the audio signals.
  • the tone signal generator 11 is connected on the output side via a connecting line 18 with an adder 17.
  • the tone signal generator 15 is the output side via a connecting line 23 to the adder 17 and the tone signal generator 13 is the output side connected via a connecting line 24 to the adder 17.
  • the adder 17 is configured to sum audio signals received together on the input side and to generate the audio signal which represents a sum of the audio signals received by the adder 17 on the input side.
  • the adder 17 is connected on the output side via a connecting line 22 to the input 4 of the transmission unit 7.
  • the audio signal unit 9 has a memory 19 for data records.
  • a data record 20 is designated by way of example.
  • the data sets are each formed by codewords, each codeword representing at least one generation parameter for generating a sound signal.
  • the codeword 21 of the data set 20 is designated by way of example.
  • a generation parameter can be, for example, a fundamental frequency, a harmonic spectrum, a volume, an amplitude modulation level, a frequency modulation level, or an assignment to a predetermined tone signal generator.
  • the data records can thus each represent a melody.
  • the audio signal unit 9 also has a control unit 16.
  • the control unit 16 is connected on the output side via a data bus 25 to the tone signal generator 11 via a data bus 26 to the tone signal generator 13, and via a data bus 27 to the tone signal generator 15.
  • the control unit 16 is connected on the input side via a connecting line 34 to the memory 9.
  • the audio signal unit 9 has an input 32 for an event signal.
  • the control unit 16 is connected on the input side via a connecting line 33 to the input 32 for the event signal.
  • the control unit 16 is designed to read out a data set, for example the data record 20 via the connecting line 34 from the memory 19 and to interpret the data record 20 by code words and to output for each code word a production parameter corresponding to the code word on the output side, in dependence on an event signal received on the input side.
  • the memory 19 is connected via a connecting line 29 to a central control unit 28 of the hearing aid 1.
  • the central control unit 28 is designed to control an operating sequence of the hearing aid 1 and is connected on the input side to an interface 30 via a connecting line 31, and on the output side to the input 32 for the event signal via a connecting line 36.
  • the central control unit 28 is connected on the input side to a sensor 37 for detecting a state of charge of a battery connected to the hearing aid.
  • the sensor 37 is designed to generate a sensor signal which corresponds to the predetermined state of charge of the connected battery and output this output side.
  • the hearing aid 1 also has a system test unit 38, which is connected via a connecting line 42 to the central control unit 28.
  • the system test unit 38 can test at least one component of the hearing aid 1, for example the transmission unit 7, and generate a status signal which corresponds to the test result and outputs this on the output side.
  • the central control unit 28 may send a control signal for testing the hearing aid 1 to the system test unit 38.
  • the system test unit 38 can then test the at least one component of the hearing aid 1 and send back the status signal corresponding to the test result on the output side via the connecting line 42 to the central control unit 28.
  • the central control unit 28 can then generate an event signal which represents a status in accordance with the test result and send it on the output side via the connecting line 36 to the input 32 and from there via the connecting line 33 to the control unit 16.
  • the control unit 16 can read a corresponding record from the memory 19 via the connecting line 34 as a function of the input side received event signal and generate by means of the tone generator 11, 13 or 15 or a combination of these an audio signal representing a melody corresponding to the read record ,
  • the interface 30 may be configured to receive a transmitted record wirelessly.
  • the central control unit 28 can - for example, depending on a User interaction signal - receive a transmitted record 35 via the interface 30 and the connecting line 31 and store it via the connecting line 29 in the memory 19. In this way, the memory 19 can keep in stock different data sets which each represent different melodies to one another.
  • the central control unit can generate an event signal as a function of a state of charge signal received on the input side.
  • the audio signal unit 9 can - analogous to the above-described procedure - depending on a received at the input 32 event signal, which represents the state of charge of a connected to the hearing aid 1 battery, generate an audio signal representing a state of charge corresponding to the melody.
  • the interfaces 39 and 30 can each be designed as a magnetic near-field interface or as an infrared interface.
  • the midi converter 40 is connected to the interface 39.
  • the personal computer 41 may generate a midi signal provided for generating a data set, such as the data set 20, and send it to the midi converter 40.
  • the midi converter 40 can generate from the midi signal a data record, for example the data record 20, and this data by means of the Send interface 39 as a transmitted record 35 to the hearing aid 1.
  • the hearing aid 1 can receive and store different melodies to each other.
  • the hearing aid 1 can be designed to assign at least one predetermined event to a data record, for example the data record 20.
  • Embodiments of waveforms that can be used by the tone signal generator 11, 13 or 15 for generating a sound signal, are in FIG. 3 shown.
  • Fig. 2 shows an embodiment of a tone signal generator 43, which for example at least partially the in Fig. 1 represented tone signal generator 11, 13 or 15 can form.
  • the tone signal generator 43 has a feedback input 44, which is connected to a first input of an adder 45 of the tone signal generator 43.
  • the tone signal generator 43 also has an adder 46 which is connected on the input side to an output of the adder 45.
  • the adder 45 is connected on the input side to an output of a multiplication element 49.
  • the multiplication element 49 is connected on the input side to a frequency input 47 of the tone signal generator 43.
  • the multiplication element 49 is also connected on the input side to an output of a vibrato song 52 for generating a frequency modulation.
  • the vibrato song 52 is connected on the input side to a trigger input 53 of the tone signal generator 43.
  • the multiplication element 49 is designed to multiply the signals received on the input side and to generate an output signal which corresponds to the multiplication result.
  • the adders 45 and 46 are each configured to add together signals received on the input side and to generate an output signal which is a sum of the input side corresponds to received signals.
  • the adder 46 is connected on the output side to a modulo song 54 of the tone signal generator 43.
  • the modulo song 54 is also connected to a wavelength memory 45 on the input side.
  • the modulo song 54 is configured to divide the output signal received from the adder 46 by the numerical value received by the wavelength memory 55 and to generate an output signal representing the remainder of the division and to output this output side.
  • the modulo member 54 is connected on the output side to an input of a delay element 56.
  • the delay element 56 is connected on the output side to an input of the adder 46.
  • an output signal produced by the modulo member 54 is latched and taken into account for a following arithmetic operation by summation.
  • the modulo member 54 is also connected to a rounding member 57 on the output side.
  • the rounding element is designed to round an input signal received on the input side, which represents a numerical value, to a numerical value with a predetermined number of decimal places.
  • the rounding member is configured to generate an output signal representing an integer rounding result.
  • the rounding member 57 is connected on the output side to a waveform memory 58 of the tone signal generator 43.
  • the waveform memory 58 may be formed as a look-up table and holds temporally successive samples of a sampled wave period, each associated with an index. The samples each represent an amplitude value at a sampling instant. The sampling time is also called index below.
  • the shaft memory 58 is configured to select an index which corresponds to a signal received on the input side and to generate an output signal representing an amplitude value associated with the selected index.
  • the wavelength memory 55 holds a number of samples held in the shaft memory 58 in stock.
  • the modulo member 54 in conjunction with the wavelength memory 55, causes signals received from the adder 45 to be mapped to the indexes stored in the shaft memory 58.
  • the shaft memory 58 is connected on the output side to a first input of a multiplication element 59.
  • a second input of the multiplier 59 is connected to an output of an envelope member 60.
  • the multiplication element 59 is connected on the output side to a first input of a multiplication element 61.
  • a second input of a multiplication element 61 is connected to an output of a tremolo song designed as an amplitude modulation element.
  • the multiplication element 61 is connected on the output side to an output 64 of the signal generator 43.
  • the envelope element 60 has a trigger input, which is connected to the trigger input 53 of the tone signal generator 43.
  • the tremolo song 62 has a trigger input, which is connected to the trigger input 53 of the tone signal generator 43.
  • the envelope member 60 has a tone stop input which is connected to a tone stop input 63 of the tone signal generator 43.
  • tone signal generator 43 The operation of the tone signal generator 43 will now be described below:
  • the vibrato song 52 can generate a modulation frequency in response to the trigger signal received on the input side and output this on the output side.
  • a frequency applied to the frequency input 47 is determined by the multiplier 49 multiplied by the modulation frequency generated by the vibrato song 52 and output to the adder 45.
  • the output signal generated by the multiplication element 49 is output by the adder 45 on the output side to the adder 46.
  • the frequency to be generated is now mapped in the following signal waveform by the modulo member 54, the wavelength memory 55 and the delay element 56, and further in conjunction with the rounding member 57 on the indices held in the shaft memory 58.
  • the envelope member 60 generates an output signal in response to the trigger signal received on the input side, which output signal is multiplied by the multiplier 59 together with the signal output from the wave memory 58.
  • the tremolo member 62 generates an amplitude modulation signal in response to the trigger signal received at the trigger input 53, which is received and multiplied on the input side of the multiplier 61 together with the output signal generated by the multiplier 59.
  • the multiplication element 61 On the output side, the multiplication element 61 generates an output signal which corresponds to the multiplication result and makes this output available at the output 64 of the tone signal generator 43.
  • the envelope member In the case of a tone stop signal, which is applied to the tone stop input 63, the envelope member generates an output signal which represents the value 0, so that the output signal generated by the multiplier 59 also represents a value 0.
  • the in FIG. 2 shown tone signal generator may be connected in parallel or in series with at least one further tone signal generator.
  • the frequency inputs of the tone signal generators each have a common frequency input connected.
  • the outputs of the mutually parallel tone signal generators are interconnected. For example, in the case of two mutually parallel tone signal generators, a first tone signal generator is fed back via a gain element from the output to the feedback input.
  • a feedback input of a second audio signal generator is assigned a value 0, which corresponds to no frequency or a frequency of 0 hertz.
  • an output of a first tone generator is connected to a feedback input of the second tone signal generator.
  • the first tone signal generator is fed back via a gain element from its output to its feedback input.
  • the frequency inputs of the tone signal generators are connected to each other and form a common frequency input.
  • circuit arrangement with a plurality of tone signal generators, which are connected to each other in parallel and / or in series.
  • a feedback input of a tone generator may be connected to an output of another tone generator or a plurality of other tone generators.
  • Tone signal generators 11, 13 and 15 shown can each have at least two tone signal generators according to the in FIG. 2 have tone signal generator 43 shown, which are respectively connected in parallel or in series or in the case of at least three tone signal generators in series and in parallel combined with each other.
  • Fig. 3 shows exemplary embodiments of waveforms that may be stored in the shaft memory 58 in stock.
  • the waveforms each represent mutually different sound characteristics.
  • Waveforms shown are except the waveform 78 each by 2048 samples formed.
  • a waveform 70 represents a sinusoidal signal that extends over all the 2048 samples held in memory.
  • a waveform 71 shows a sine half-wave extending from sample 0 to sample 1023. From sample 1024 to sample 2047 of waveform 71, a signal amplitude is 0.
  • Waveform 71 represents a first half-sine wave that has positive amplitude values and extends from sample 0 to sample 1023. From sample 1024 to sample 2047, a second sine half-wave extends which has positive amplitude values.
  • a waveform 73 represents two consecutive sinusoidal wave periods, with a first wave period extending between a sample 0 and a sample 1023 and a second wave period extending between a sample 1024 and a sample 2047. Shown is also a waveform 74 representing a sinusoidal wave period extending between a sample 0 and a sample 1023.
  • a waveform 75 represents two sine halfwaves each having positive amplitude values, a first half sine wave extending between a sample 0 and a sample 500, and a second sine halfwave extending between a sample 501 and a sample 1023 extends. Between samples 1024 and 2047, a signal amplitude is 0.
  • a waveform 76 represents a square wave signal, wherein samples extending between a sample 0 and a sample 1023 have a sample 1 and sample values extending between a sample 1024 and 2047 have a value of -1. Shown is also a waveform 77, which represents a white noise. The white noise has a maximum signal amplitude which extends between an amplitude value -1 and an amplitude value 1.
  • a waveform 78 shows a temporal portion of the illustrated waveform 77 and has 20 samples.
  • FIG. 4 shows a diagram 80.
  • the diagram 80 shows a graph 84 which represents an amplitude envelope of an audio signal section.
  • the audio signal portion may represent at least one tone or chord as part of a melody formed of tones and / or chords and generated by a tone generator.
  • the audio signal section has four mutually different phases, namely an attack phase, a decay phase, a sustain phase and a release phase.
  • the diagram 80 has an abscissa 81 and an ordinate 81. On the abscissa 81, a time is plotted and on the ordinate 82, an audio signal amplitude is plotted.
  • time periods 86, 87, 88 and 89 are designated.
  • the time section 86 represents a rising phase of the audio signal section.
  • the time section 87 represents a decay phase of the audio signal section.
  • the period 88 represents a holding phase of the audio signal section.
  • the period 89 represents a decay phase the audio signal section in which the course of the amplitude envelope drops.

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Claims (6)

  1. Prothèse ( 1 ) auditive ayant au moins un capteur ( 3 ) de son et un producteur ( 5 ) de son,
    dans laquelle le au moins un capteur ( 3 ) de son est constitué pour recevoir des ondes sonores et pour produire un signal de microphone qui représente les ondes sonores reçues, et comprenant une unité ( 7 ) de transmission qui est reliée du côté de l'entrée au au moins un capteur ( 3 ) de son et du côté de la sortie au producteur ( 5 ) de son et dans laquelle l'unité ( 7 ) de transmission est constituée pour recevoir le signal de microphone du côté de l'entrée et pour produire, en fonction du signal de microphone reçu du côté de l'entrée, un signal de puissance qui représente au moins en partie le signal de microphone,
    et le producteur ( 5 ) de son est constitué pour recevoir du côté de l'entrée le signal de puissance et pour produire, en fonction du signal de puissance reçu du côté de l'entrée, un son qui correspond au signal de puissance,
    dans laquelle la prothèse ( 1 ) auditive a une unité ( 9 ) de signal audio, qui est reliée fonctionnellement au producteur ( 5 ) de son et qui est constituée pour produire un signal audio perceptible à l'oreille humaine et ayant plusieurs fréquences différentes l'une de l'autre d'une plage de fréquence,
    dans laquelle l'unité ( 9 ) de signal audio a au moins un générateur ( 11, 13, 15, 43 ) de signal de ton, le au moins un générateur ( 11, 13, 15, 43 ) de signal de ton étant constitué pour produire le signal audio avec au moins une fréquence fondamentale représentant un ton et des harmoniques de la fréquence fondamentale,
    dans laquelle l'unité ( 9 ) de signal audio a une entrée ( 32 ) pour un signal d'évènement représentant un évènement et est constituée pour produire le signal audio en fonction du signal d'évènement,
    caractérisée
    en ce que le au moins un générateur ( 11, 13, 15, 43 ) de signal de ton est constitué pour produire le signal audio au moins en partie au moyen de synthèses à modulation de fréquence.
  2. Prothèse auditive suivant la revendication 1,
    caractérisée
    en ce qu'une partie ( 80 ) du signal audio qui représente un ton a une enveloppe ( 84 ) d'amplitude, une partie ( 89 ) d'extrémité de la partie du signal audio ayant une enveloppe d'amplitude décroissant exponentiellement.
  3. Prothèse auditive suivant la revendication 1,
    caractérisée
    en ce qu'une partie ( 80 ) du signal audio représente au moins un ton ou un accord comme partie d'une mélodie formée de tons et/ou d'accords, la partie ( 80 ) du signal audio ayant quatre phases décalées les unes par rapport aux autres d'une enveloppe ( 84 ) d'amplitude de la partie ( 80 ) du signal audio, à savoir une phase ( 86 ) de montée, une phase ( 87 ) de descente, une phase ( 88 ) de maintien et une phase ( 89 ) d'évanouissement, une courbe de l'enveloppe ( 84 ) d'amplitude décroissant dans la phase ( 89 ) d'évanouissement.
  4. Prothèse auditive suivant l'une des revendications précédentes,
    caractérisée
    en ce que le au moins un générateur ( 11, 13, 15, 43 ) de signal de ton a un élément ( 52 ) formant vibreur, qui est constitué pour produire le signal audio au moins en partie à l'aide d'une modulation de fréquence supplémentaire.
  5. Prothèse auditive suivant l'une des revendications précédentes,
    caractérisée
    en ce que le signal audio représente un son instrumental et/ou vocal.
  6. Prothèse auditive suivant l'une des revendications précédentes,
    caractérisée
    en ce que le signal audio représente au moins en partie un signal de bruit.
EP07112124.8A 2006-08-04 2007-07-10 Prothèse auditive avec générateur de signaux audio Active EP1885156B1 (fr)

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EP1885156B1 true EP1885156B1 (fr) 2013-04-24

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EP (1) EP1885156B1 (fr)
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Also Published As

Publication number Publication date
EP1885156A3 (fr) 2011-11-09
US20080031480A1 (en) 2008-02-07
DK1885156T3 (da) 2013-07-29
US8411886B2 (en) 2013-04-02
EP1885156A2 (fr) 2008-02-06

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