JP2006165757A - Auditory compensation type individual adaptation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an auditory compensation type individual adaptation system for efficiently determining the setting of an auditory compensation system suitable to an individual in a short period of time. <P>SOLUTION: A use compensation system selection section 11 selects a single or a plurality of auditory compensation systems and a compensation system candidate setting designation section 12 designates candidate setting for an auditory compensation system. A single compensation system setting section 13 presents a couple of speeches adjusted according to the candidate setting designated by the compensation system candidate setting designation section 12 and determines the setting of an auditory compensation system suitable to the user based on selecting operation for an easy-to-hear speech and an optimum setting determination procedure reducing the frequency of the selecting operation. Determination on setting suitable to the user is outputted to a result output section 16 from a single compensation system setting end determination section 14 and a multiple compensation system setting merging section 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an auditory compensation system personal adaptation system, and more particularly to an auditory compensation system personal adaptation system capable of efficiently determining a single or a plurality of auditory compensation system settings suitable for an individual in a short time.

  Mobile phones have become popular, and many people have mobile phones. Elderly people and hearing-impaired people may find it difficult to hear the sound transmitted from the mobile phone, and the cause of the difficulty of hearing is different for each individual. It is desirable that it be compensated. The same applies not only to mobile phones but also to other devices that transmit audio. Conventionally, it has been proposed to provide audio that has been subjected to auditory compensation processing so as to match the individual auditory characteristics.

  For example, Patent Document 1 proposes a telephone with an auditory characteristic compensation means that can adjust the gain of the amplification unit of the receiving circuit and its frequency characteristic so that the user can match his / her auditory characteristic by frequency switching and volume control dial operation. Has been.

Further, in Patent Document 2, audio data that has been subjected to a plurality of types of auditory compensation processing is transmitted from a transmission side through a plurality of individual audio channels and additional information for identifying the audio channel is transmitted. Displays the selection screen for selecting the optimal sound by judging the auditory compensation processing applied to the sound of each audio channel based on the additional information, and outputs the audio of the selected audio channel according to the selection on this selection screen A hearing compensation method for digital broadcasting has been proposed.
JP-A-8-191340 Japanese Patent Application Laid-Open No. 2000-341652

  However, in the telephone with auditory characteristic compensation means described in Patent Document 1, a minimum audible level setting operation that a user can hear is performed by operating a volume adjustment dial, and this setting operation is performed for each measurement frequency. Since this is done, there is a problem that it takes a lot of time to determine the setting of the auditory characteristic compensation. Here, only the sound pressure level and the frequency characteristic are compensated, and this compensation cannot provide the user with a sound that is sufficiently easy to hear. When the number of compensation methods is increased, there arises a problem that more time and labor are required for the setting operation.

  In the auditory compensation method for digital broadcasting described in Patent Document 2, since the selection screen for selecting the optimum voice is displayed by judging the auditory compensation processing applied to the voice, the user actually applies the auditory compensation. There is a possibility of prejudice for hearing compensation that is suitable for the user before hearing and comparing the received speech, and it cannot be said that hearing compensation suitable for the user is necessarily determined.

  Patent Document 2 also describes that it is possible to employ three or more types of hearing compensation processing, but the user needs to compare all combinations of selectable hearing compensation processing settings, In addition to imposing a lot of burden on the user, there is a problem that the user may make an ambiguous judgment until a combination of settings suitable for the user is determined.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an auditory compensation method personal adaptation system that can solve the above-described problems and can efficiently determine a single or a plurality of auditory compensation methods suitable for an individual in a short time. .

In order to solve the above-mentioned problem, the present invention provides a compensation method candidate setting designation unit for designating candidate settings for an auditory compensation method and a pair of sounds adjusted according to the candidate settings designated by the compensation method candidate setting designation unit. A compensation method setting unit that determines a setting of a compensation method suitable for the user in accordance with the selection and optimum setting determination procedure. The optimum setting determination procedure includes a procedure including the following steps S1 to S8.
S1. The number of variable values (candidate settings) to be compared is N (N ≧ 3), the largest value among N is M, the smallest is m, and M and m are compared and selected first. , Go to S2.
Regarding the number k of variable values between the two values used for the comparison before the S2.1 stage,
(1) When k is an odd number of 3 or more, the process proceeds to S3.
(2) When k is an even number of 4 or more, the process proceeds to S4.
(3) When k = 1, proceed to S5.
(4) When k = 2, the process proceeds to S8.
S3.1 The value selected in the comparison of the previous stage is set to f, the intermediate value of the two values used for the comparison of the previous stage is set to c, f and c are compared and selected, and the process proceeds to S2.
S4.1: The value selected in the comparison in the first stage is f, and the value close to f among the two values in the middle of the two values used in the comparison in the first stage is c, and f and c are compared and selected. Move on.
S5.1 When the value selected in the comparison in the first stage is f, and the value selected in the comparison in the second stage is ff,
(1) When f = ff, the process proceeds to S6.
(2) When f ≠ ff, the process proceeds to S7.
(3) If ff does not exist, proceed to S6.
S6.1: The intermediate value of the two values used for the comparison of the previous stage is set to c, f and c are compared and selected, and the selected value is the result.
S7. Comparison comparison selection of binary adjacent to f is performed. The selected value is compared with f, and the selected value is used as the result.
S8.1: The value selected in the comparison of the first stage is f, and c is the one of the two values sandwiched between the two values used for the comparison of the first stage, and the comparison is made between f and c. The selected value is the result.

  The present invention further includes a use compensation method selection unit and a plurality of compensation method setting merging unit for selecting one or a plurality of hearing compensation methods to be used for hearing compensation, and the compensation method candidate setting designation unit includes the use compensation When a candidate setting is designated for each of a single or a plurality of hearing compensation methods selected by the method selection unit, and a plurality of hearing compensation methods are selected by the use compensation method selection unit, the compensation method setting unit includes a plurality of compensation method setting units. A setting suitable for the user is determined for each of the auditory compensation schemes, and the multiple compensation scheme setting merging unit is configured to listen to a combination of a plurality of auditory compensation scheme settings determined by the compensation scheme setting unit. It is also possible to determine a combination of settings that are easy to determine as a setting of a compensation method that is optimal for the user.

  In addition, when a plurality of auditory compensation methods are selected by the usage compensation method selection unit, it is preferable to randomly determine the order in which the settings of the respective auditory compensation methods are determined. When a plurality of hearing compensation methods are selected by the method selection unit, the order of determining the setting of each hearing compensation method may not be clearly indicated to the user.

  According to the present invention, in the process of determining the setting of the hearing compensation method suitable for the user, it is only necessary to select which of the two audio samples presented from the system is easy to hear, and the optimal hearing compensation. Since the optimal setting determination procedure for reducing the number of operations until the final determination is determined, the burden on the user can be reduced. At the same time, it is possible to reduce the possibility that the user will make an ambiguous decision, so that the reliability of the setting of the hearing compensation method determined here can be increased.

  Further, when determining a setting that is easy to hear for a user by combining a plurality of hearing compensation methods, the determination can be performed efficiently in a short time.

  In addition, when determining the hearing compensation method setting, it is possible to eliminate the preconception of the user by not clearly indicating to the user what kind of hearing compensation method setting is currently being compared. The setting of the hearing compensation method can be determined.

  The present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing an embodiment of a hearing compensation personal adaptation system according to the present invention. This system can be configured by software. Moreover, you may comprise with hardware.

  The auditory compensation method personal adaptation system according to the present invention is characterized by a procedure for determining the optimum setting of a candidate setting for a single auditory compensation method, and also determines a setting for hearing compensation using the procedure for determining the optimum setting. The entire configuration is also unique.

  In the embodiment of FIG. 1, a use compensation method selection unit 11, a compensation method candidate setting designation unit 12, a single compensation method setting unit 13, a single compensation method setting end determination unit 14, a multiple compensation method setting merging unit 15, and a result An output unit 16 is provided so that optimal hearing compensation can be performed for the subject (user) not only by setting a single hearing compensation method but also by combining a plurality of hearing compensation method settings.

  Selection of the following auditory compensation methods and designation of candidate settings for each auditory compensation method are preferably operations performed by the examiner, and the user simply listens to the voice that is easier to hear among the pair of presented voices. It is only necessary to select.

  First, the use compensation method selection unit 11 selects a single or a plurality of hearing compensation methods to be used for hearing compensation suitable for the user. Auditory compensation methods include, for example, AGC, frequency equalizer, pitch change, formant change, speech speed conversion, and the like. When a plurality of hearing compensation methods are selected, the order in which the setting of each hearing compensation method is determined is randomly determined.

  In the compensation method candidate setting designation unit 12, candidate settings are designated for each of a single or a plurality of auditory compensation methods selected by the usage compensation method selection unit 11. For example, when the auditory compensation method is a frequency equalizer, in a specific example, four candidate settings for amplifying a frequency of 1.2 kHz or higher by 3 dB, 6 dB, 9 dB, and 12 dB can be specified.

  The single compensation method setting unit 13 adjusts according to the candidate setting designated by the compensation method candidate setting designating unit 12 for each of the single auditory compensation method or the plurality of auditory compensation methods selected by the use compensation method selecting unit 11. The paired voices are presented (pronounced), and the user is prompted to select one of the paired voices that is easy to hear. Then, the user determines a setting suitable for the user based on selecting a voice that is easier to hear from among a pair of voices sequentially presented in accordance with the optimum setting determination procedure that characterizes the present invention. Details of the processing here will be described later.

  The single compensation method setting end determination unit 14 outputs the setting determined by the single compensation method setting unit 13 to the result output unit 16 when the hearing compensation method selected by the use compensation method selection unit 11 is single. To do. Further, when there are a plurality of hearing compensation methods selected by the usage compensation method selection unit 11, it is determined whether or not the work for determining the settings for all the selected hearing compensation methods has been completed. The settings determined here are output to the multiple compensation method setting merging unit 15, and if not completed, the processing is returned to the single compensation method setting unit 13 to set the auditory compensation method that has not been completed.

  The multiple compensation scheme setting merging unit 15 sets a setting suitable for the user based on each setting determined by the single compensation scheme setting unit 13 for each of the plurality of auditory compensation schemes selected by the usage compensation scheme selection unit 11. decide. Details of this determination process will be described later.

  The result output unit 16 outputs the setting determined by the single compensation method setting unit 13 or the multiple compensation method setting merging unit 15 as the final determination of the hearing compensation method setting.

  FIG. 2 is a functional block diagram showing in detail an example of the single compensation method setting unit (13 in FIG. 1). The single compensation method setting unit of this example includes a pair comparison setting determination unit 21, a sample configuration determination unit 22, a pair comparison sample creation unit 23, a pair comparison sample presentation unit 24, a pair comparison result selection unit 25, and a setting work end determination. Part 26 is provided.

  In the case of the first pair comparison between candidate settings, the pair comparison setting determination unit 21 sets two candidate settings for performing a pair comparison based on the candidate setting designated by the compensation method candidate setting designation unit 12 and the optimum setting determination procedure. decide. Further, in the case of the second and subsequent pair comparisons between candidate settings, the setting selected by the pair comparison result selection unit 25 and the candidate setting designated by the compensation method candidate setting designation unit 12 and the optimum setting determination procedure are used. Next, two candidate settings for performing a paired comparison are determined. Details of the optimum setting determination procedure will be described later.

  The sample configuration determination unit 22 determines a sample to which the two candidate settings determined by the paired comparison setting determination unit 21 are applied. Samples with different order of male and female speakers, speakers, utterance contents, etc. are prepared, and the two candidate settings determined by the paired comparison setting determination unit 21 are selected at random from these samples. Decide which sample to apply. However, the samples used in the pair comparison are the same. The sample is preferably composed of two utterances, one of which is uttered by a male speaker and the other is uttered by a female speaker.

  In the paired comparison sample creation unit 23, the sample having the configuration determined by the sample configuration determination unit 22 is taken out from the sample database (DB), and two samples to which the two candidate settings determined by the pair comparison setting determination unit 21 are applied are extracted. create. Note that a sample to which each candidate setting in each compensation method is applied may be prepared in advance in the sample DB, and the above two samples may be taken out from the sample DB.

  The paired comparison sample presentation unit 24 randomly determines the presentation order of the two samples created by the paired comparison sample creation unit 23 and presents it to the user. The paired comparison result selection unit 25 causes the user to select a sample that the user feels easy to hear out of the two presented samples.

  The setting work end determination unit 26 determines the final setting based on the setting selected by the paired comparison result selection unit 25 and the candidate setting specified by the compensation method candidate setting specifying unit 12 and the optimum setting determination procedure. Therefore, it is determined whether further paired comparison is necessary. If it is determined that further pair comparison is necessary, the pair comparison setting determination unit 21 returns the processing to perform pair comparison between the next candidate settings, and if it is determined that it is not necessary, the pair comparison result selection unit 25 selects it. The determined setting is determined to be a setting suitable for the user in the compensation method, and is output.

Next, the optimum setting determination procedure in the paired comparison setting determination unit 21 will be described. The optimal setting determination procedure used here is to reduce the burden on the user and to determine a setting suitable for the user from a large number of candidate settings (the number N ≧ 3) with a small number of operations. It consists of the following steps S1 to S8.
S1. The number of variable values (candidate settings) to be compared is N (N ≧ 3), the largest value among N is M, the smallest is m, and M and m are compared and selected first. , Go to S2.
Regarding the number k of variable values between the two values used for the comparison before the S2.1 stage,
(1) When k is an odd number of 3 or more, the process proceeds to S3.
(2) When k is an even number of 4 or more, the process proceeds to S4.
(3) When k = 1, proceed to S5.
(4) When k = 2, the process proceeds to S8.
S3.1 The value selected in the comparison of the previous stage is set to f, the intermediate value of the two values used for the comparison of the previous stage is set to c, f and c are compared and selected, and the process proceeds to S2.
S4.1: The value selected in the comparison in the first stage is f, and the value close to f among the two values in the middle of the two values used in the comparison in the first stage is c, and f and c are compared and selected. Move on.
S5.1 When the value selected in the comparison in the first stage is f, and the value selected in the comparison in the second stage is ff,
(1) When f = ff, the process proceeds to S6.
(2) When f ≠ ff, the process proceeds to S7.
(3) If ff does not exist, proceed to S6.
S6.1: The intermediate value of the two values used for the comparison of the previous stage is set to c, f and c are compared and selected, and the selected value is the result.
S7. Comparison comparison selection of binary adjacent to f is performed. The selected value is compared with f, and the selected value is used as the result.
S8.1: The value selected in the comparison of the first stage is f, and c is the one of the two values sandwiched between the two values used for the comparison of the first stage, and the comparison is made between f and c. The selected value is the result.

  In the following, a specific example in which five hearing compensation methods, for example, AGC, frequency equalizer, pitch change, formant change, and speech speed conversion are used, and a setting suitable for the user is determined by combining them alone or in combination with a plurality of them. To do.

  For AGC, a pair of AGC setting and no AGC setting (original) is set as a candidate setting, and a voice according to both candidate settings is output to allow the user to select the one that is easy to hear. It is determined whether to set AGC according to the selection. The selection of the user here is only one alternative. Therefore, AGC is not an auditory compensation method to be processed by the optimum setting determination procedure.

  The setting that can be specified with the frequency equalizer is 3dB, 6dB, 9dB, 12dB, 15dB, 18dB, 21dB above the frequency specified in advance from the four types of frequency 1.0kHz, 1.2kHz, 1.5kHz, 2.0kHz. , 24 dB, each of which is amplified by 24 dB, and can be transmitted by applying each to the original sound stored in the sample DB. Alternatively, a sound obtained by applying each to the original sound may be stored in advance in the sample DB, and a predetermined sample may be taken out from the stored sound.

  From these eight settings, four settings are designated in advance, and from the five settings obtained by adding the original sound to this, the frequency equalizer setting suitable for the user is determined. In this way, a large number of frequencies and gains that can be set are prepared, and it is possible to adapt to a large number of people by first specifying a setting that is estimated to be suitable for the user from among them and selecting it as a selection target. At the same time, a setting suitable for each user can be determined in a short time.

  FIG. 3 shows a selection procedure when four kinds of settings (5 kinds in addition to the original) for amplifying a certain frequency (for example, 1.0 kHz) or more at 3 dB, 6 dB, 9 dB, and 12 dB are specified in the frequency equalizer. FIG.

  First, the pair of ease of hearing of the original with the maximum amplification of 12 dB is compared with the minimum (S31). In practice, a pair of voices adjusted in both states are transmitted to make the user select the one that is easy to hear. When the user selects the original, the original is compared with the original and a pair of 12 dB with an intermediate value of 6 dB (S32), and if the user selects 12 dB here, the original is further 12 dB and 12 dB. An intermediate value of 6 dB is compared (S33).

  When the user selects the original in S32, the original is compared with an intermediate value of 3 dB of 6 dB from the original (S34). Here, when the user selects the original, the original is determined as the final setting (S35), and when 3 dB is selected, 3dB is determined as the final setting (S36).

  When the user selects 12 dB in S33, 12 dB is compared with an intermediate value 9 dB between 12 dB and 6 dB (S37). Here, when the user selects 12 dB, 12 dB is determined as the final setting (S38), and when 9 dB is selected, 9 dB is determined as the final setting (S39).

  When the user selects 6 dB in S32 and 6 dB in S33, the binary adjacent to 6 dB, that is, 3 dB and 9 dB are compared (S40). When the user selects 3 dB, 3 dB is compared with 6 dB (S41), and when 9 dB is selected, 9 dB is compared with 6 dB (S42).

  If the user selects 6 dB in S41, and if 6dB is selected in S42, 6dB is determined as the final setting (S43). If the user selects 3 dB in S41, 3 dB is determined as the final setting (S36), and if the user selects 9 dB in S42, 9 dB is determined as the final setting ( S39).

  According to the above procedure, a setting suitable for the user can be determined by three or four paired comparisons from among five settings. On the other hand, ten pairs of comparisons are required to rank the five different settings by brute force and determine the setting with the highest rank.

  Since the AGC and the frequency equalizer are easy to handle together as physical quantities, it is preferable to handle both together when determining the setting of the hearing compensation method. Of course, it is not necessary to handle both of them together, and they may be handled separately. When handling together, if both AGC and frequency equalizer are specified in advance as auditory compensation methods and the settings for both are other than the original, first apply both the settings for AGC and frequency equalizer. Or decide whether to apply only one of the settings. As for the application of the frequency equalizer, the original sound is stored in the sample DB and applied each time, or the pre-applied sound is stored in the sample DB and a predetermined one of them is stored. It is arbitrary whether to take out.

  When making this decision, perform a ranking by pairwise comparison of the three types of “both”, “AGC setting only”, and “frequency equalizer setting only”, and combine the AGC and frequency equalizer with the highest setting. The setting is determined. However, when superiority or inferiority does not occur in the three settings, a setting in which both AGC and a frequency equalizer are applied is selected and determined. In order to determine the setting of the AGC and the frequency equalizer from among the above three types, three pair comparisons are required.

  The settings that can be specified by changing the pitch or formant are -30%, -25%, -20%, -15%, -10%, -5%, + 5%, + 10%, + 15%. , + 20%, + 25%, + 30%, and can be transmitted by applying each to the original voice stored in the sample DB. Alternatively, a sound obtained by applying each to the original sound may be stored in advance in the sample DB, and a predetermined sample may be taken out from the stored sound. From these 12 settings, four settings are designated in advance, and from the five settings obtained by adding the original sound to this, the setting for pitch change or formant change suitable for the user is determined.

  Fig. 4 is a flowchart showing the selection procedure when -20%, -10%, + 10%, and + 20% of 4 settings (5 including the original) are specified for pitch change or formant change. FIG. Since this procedure is the same as that in FIG. Even in this procedure, the setting suitable for the user can be determined from three kinds of settings by three or four paired comparisons.

  Since it is easy to handle pitch changes and formant changes together as physical quantities, it is better to handle them together. Of course, it is not necessary to handle both of them together, and they may be handled separately. When handling together, both pitch change and formant change are pre-designated as auditory compensation methods, and both the decision of the settings for pitch change and formant change apply when both are not original. Or decide whether to apply only one of the settings. As for the application of the pitch change and the formant change, the original sound is stored in the sample DB and applied each time, or the pre-applied sound is stored in the sample DB and the predetermined change is performed. It is arbitrary whether to take out things.

  When making this decision, perform a ranking based on a brute force comparison of the “Both”, “Pitch change setting only”, and “Formant change setting only”, and set the highest setting to change the pitch and change the formant. The setting is determined as a combination. However, if superiority or inferiority does not occur in the three types of settings, the setting that applies both the pitch change and the formant change is selected and determined. In order to determine the setting of pitch change and formant change from among the above three methods, three pair comparisons are required.

  There are four settings that can be specified for speaking speed conversion: 6 mora / sec, 7 mora / sec, 8 mora / sec, and 9 mora / sec, and samples each of these settings applied to the original audio in advance. Store in DB. From these four settings, two settings are designated in advance, and from the three settings obtained by adding the original voice to this, the speech speed conversion setting suitable for the user is determined.

  FIG. 5 is a flowchart showing a selection procedure when two kinds of settings of 7 mora / second and 8 mora / second (three kinds in addition to the original) are designated in the speech speed conversion.

  First, let us compare 7 mora / second, the maximum speech speed conversion, with the original ease of listening, which is the minimum (S51). Here, when the user selects the original, the original is compared with the original and an intermediate value of 8 mora / s between 7 mora / s (S52), and when 7 mora / s is selected, 7 mora / s is selected. 7 mora / second and the original intermediate value 8 mora / second are compared (S53).

  If the user selects the original in S52, the original is determined as the final setting (S54), and if 8 mora / second is selected, the final setting is determined as 8 mora / second (S55). ).

If the user selects 7 mora / sec in S53, the final setting is determined as 7 mora / sec (S56), and if 8 mora / sec is selected, the final setting is 8 mora / sec. (S55).
In this procedure, a setting suitable for the user can be determined from two kinds of settings by two pair comparisons. On the other hand, three-way comparisons are required in order to determine the setting with the highest ranking by ranking the three types of settings by brute force.

  Next, a process in the multiple compensation method setting merging unit 15, that is, a process of determining a setting suitable for the user based on each setting determined in the single compensation method setting unit 13 for each of a plurality of auditory compensation methods. The case where the above five compensation methods are selected will be described as an example.

  Here, whether or not to apply the AGC and frequency equalizer settings, the pitch and formant settings, and the speech speed conversion settings determined by the single compensation scheme setting unit 13 is determined by a pairwise comparison based on the round robin. And determine that the highest one is the optimal hearing compensation method setting for the user. However, if only one of the settings of AGC and frequency equalizer, pitch and formant, and speech speed conversion remains at this stage, this setting is the optimal hearing compensation method for the user. You just have to decide that there is.

  FIG. 6 is an explanatory diagram for explaining determination of a combination of optimum compensation scheme settings from three compensation scheme settings. Here, a combination of three compensation methods, namely, AGC and frequency equalizer, pitch and formant, and speech rate conversion is considered. In the figure, “◯” indicates that the compensation method is applied, and “X” indicates that it is not applied.

  For example, the left end of the figure shows that all three compensation methods of AGC and frequency equalizer, pitch and formant, and speech rate conversion are applied, and the right end shows that only speech rate conversion is applied. There are seven ways. Note that all compensation methods are not applied, that is, the original is excluded.

  The multiple compensation scheme setting merging unit 15 compares the seven types in a brute force manner and determines the optimum combination of compensation scheme settings for the user. This determination requires 21 paired comparisons.

  The example in FIG. 6 is when all three compensation scheme settings are not original. However, if any two of these settings are not original, that is, if only one is original, only the non-original setting is used. It is sufficient to make a pairwise comparison using the round robin. Note that there are three combinations of the two compensation methods, and in order to determine a combination of setting of the most appropriate compensation method by comparing them as a pair, it is necessary to perform three pair comparisons.

  As described above, the multi-compensation method setting merging unit 15 performs a pairwise comparison with the brute force to determine the optimum combination of compensation method settings for the user. As described above, the AGC, the frequency equalizer, the pitch, By handling formants together, the number of paired comparisons can be reduced and the burden on the user can be reduced.

  When the above-mentioned multiple auditory compensation methods are selected, the order in which the settings of each auditory compensation method are determined is random, and a pair of samples to be compared are randomly selected and presented. By not clearly showing the contents presented at that time to the user, the preconception of the user can be eliminated, and the setting of the hearing compensation method more suitable for the user can be determined.

  When the present invention is applied when handing over a device such as a mobile phone to the user and the sound circuit is adjusted, the device can be used with a relatively light burden even for the elderly and the deaf. Expansion of the user group of the device can be expected.

It is a functional block diagram which shows one Embodiment of the auditory compensation system personal adaptation system which concerns on this invention. It is a functional block diagram which shows an example of a single compensation system setting part in detail. It is a flowchart which shows the selection procedure in a frequency equalizer. It is a flowchart which shows the selection procedure in a pitch change or a formant change. It is a flowchart which shows the selection procedure in speech speed conversion. It is explanatory drawing for demonstrating determination of the combination of the setting of an optimal compensation system from the setting of three compensation systems.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Usage compensation system selection part, 12 ... Compensation system candidate setting designation part, 13 ... Single compensation system setting part, 14 ... Single compensation system setting end determination part, 15 ... Plural Compensation method setting merging unit, 16 ... result output unit, 21 ... pair comparison setting determination unit, 22 ... sample configuration determination unit, 23 ... pair comparison sample creation unit, 24 ... pair comparison sample Presentation unit, 25... Pair comparison result selection unit, 26... Setting work end determination unit

Claims (4)

A compensation method candidate setting designating unit for designating candidate settings for the hearing compensation method;
Presenting a pair of voices adjusted according to the candidate setting designated by the compensation method candidate setting designation unit, causing the user to select a voice that is easy to hear out of the pair of voices, and following the selection and optimum setting determination procedure A compensation method setting unit for determining a compensation method setting suitable for the user,
The hearing compensation method personal adaptation system characterized in that the optimal setting determination procedure includes a procedure comprising the following steps S1 to S8.
S1. The number of variable values (candidate settings) to be compared is N (N ≧ 3), the largest value among N is M, the smallest is m, and M and m are compared and selected first. , Go to S2.
Regarding the number k of variable values between the two values used for the comparison before the S2.1 stage,
(1) When k is an odd number of 3 or more, the process proceeds to S3.
(2) When k is an even number of 4 or more, the process proceeds to S4.
(3) When k = 1, proceed to S5.
(4) When k = 2, the process proceeds to S8.
S3.1 The value selected in the comparison of the previous stage is set to f, the intermediate value of the two values used for the comparison of the previous stage is set to c, f and c are compared and selected, and the process proceeds to S2.
S4.1: The value selected in the comparison in the first stage is f, and the value close to f among the two values in the middle of the two values used in the comparison in the first stage is c, and f and c are compared and selected. Move on.
S5.1 When the value selected in the comparison in the first stage is f, and the value selected in the comparison in the second stage is ff,
(1) When f = ff, the process proceeds to S6.
(2) When f ≠ ff, the process proceeds to S7.
(3) If ff does not exist, proceed to S6.
S6.1: The intermediate value of the two values used for the comparison of the previous stage is set to c, f and c are compared and selected, and the selected value is the result.
S7. Comparison comparison selection of binary adjacent to f is performed. The selected value is compared with f, and the selected value is used as the result.
S8.1: The value selected in the comparison of the first stage is f, and c is the one of the two values sandwiched between the two values used for the comparison of the first stage, and the comparison is made between f and c. The selected value is the result. Furthermore, it has a use compensation method selection unit for selecting one or a plurality of hearing compensation methods to be used for hearing compensation and a multiple compensation method setting merging unit,
The compensation method candidate setting designation unit designates a candidate setting for each of a single or a plurality of auditory compensation methods selected by the use compensation method selection unit,
When a plurality of hearing compensation methods are selected by the use compensation method selection unit, the compensation method setting unit determines a setting suitable for the user for each of the plurality of hearing compensation methods,
The multi-compensation method setting merging unit is configured to select a combination of settings that are easy for the user to hear from among a plurality of hearing compensation method setting combinations determined by the compensation method setting unit. The hearing compensation method personal adaptation system according to claim 1, wherein setting is determined. The auditory compensation method according to claim 2, wherein when a plurality of auditory compensation methods are selected by the usage compensation method selector, the order of determining the setting of each auditory compensation method is randomly determined. Personal adaptation system. The auditory compensation according to claim 2 or 3, wherein when a plurality of auditory compensation schemes are selected by the usage compensation scheme selector, the order of determining the setting of each auditory compensation scheme is not clearly indicated to the user. System personal adaptation system.

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