摘要:
A voice recognition system is disclosed using the centroid of frequency spectra obtained by frequency analysis of a voice as the characteristic parameter of the voice. The locus of the centroid is obtained by periodically measuring, during the utterance of a selected phrase, the average frequency and the average amplitude. The locus constitutes a pattern of the centroid of frequency spectra and is stored in a memory. During recognition a person keys in a known address to extract the stored pattern of his voice from the memory and then reutters the key phrase. The centroid of freqency spectra is recalculated and the locus obtained is compared with the one in the memory. Humming distance is defined as the distance between a recorded locus of centroid of frequency and a newly inputted locus of centroid of frequency.
摘要:
This system verifies the voice of a specific speaker (A) through verification of vocal sounds which form a previously-recorded recognition phrase spoken by A and others. Parallel filters derive a spectral characteristic parameter x.sub.i which contains weighting factors .alpha..sub.i, .beta..sub.i, and which represents a corresponding vocal sound x.sub.i. Improved specificity over other speakers is attained by a Characteristic Feature Extractor which varies .alpha..sub.i, .beta..sub.i, through p different values, thus deriving a set of p parameters (x.sub.ik) for each vocal sound x.sub.i, thus allowing emphasis of the specific vocal sound x.sub.i as spoken by a specific speaker, over that of competing sounds and speakers.
摘要:
An electromagnetic coupling device for use with a telephone set having a hand hole in the rear thereof, the coupling device comprising a hollow plug removably insertable in the hand hole; a first winding of wire disposed within the hollow plug for receiving electrical signals from the telephone set; a second winding of wire disposed within the hollow plug for transmitting electrical signals to the telephone set, the wire of the second winding being substantially thicker in cross section than the wire of the first winding.
摘要:
Provided is a music genre judging device capable of judging a genre of music with a comparatively simple configuration.The music genre judging device comprises: a signal processing unit 10 for outputting integration value and differential value for each of low-frequency component and high-frequency component of music reproduction signal inputted from a music reproduction device 100 to a line input terminal 4; a data generation unit 30 for inputting the integration value and the differential value outputted from the signal processing value by each predetermined sampling unit time, judging whether or not each of the integration value and the differential value exceeds a predetermined level within the sapling unit time, and generating analysis data obtained by totalizing for each sampling cycle, the number of times of judgments that the value exceeding the predetermined level is detected; and a data analysis unit 31 for judging a genre of music outputted from the music reproduction n device 100 based on the totalized value of the analysis data.
摘要:
In a voice verification system, voice parameters which are highly characteristic of particular voices but have only a limited effectiveness life time (such as pitch) are used. The lifetime or similar time indication is recorded along with the original record of the characteristic parameter. At the time of verification, if the lifetime has been exceeded no verification is made. On the other hand if the lifetime of the recorded characteristic parameter has not been exceeded a verification is made. If the verification is positive the newly obtained characteristic parameter is substituted for the originally recorded parameter and the lifetime begins anew.
摘要:
A music genre judging device able to judge a genre of music in a relatively simple structure.The music genre judging device is provided with a signal input part 4 which takes in music reproduction signal outputted from a music reproduction device 100; a signal processing part 10 which outputs an integration value and a differential value of a low frequency component and a differential value of a high frequency component of the music reproduction signal taken in by the signal input part 4; a data generating part 30 which takes in the integration value and the differential values outputted from the signal processing part 10 for each prescribed sampling unit time Tn, judges whether the integration value and the differential value of the low frequency component and the differential value of the high frequency component exceed respective prescribed levels within the sampling unit time Tn, and generates analysis data D1 obtained by totalizing numbers of times of judgment when a value exceeding the prescribed level is detected for each prescribed sampling cycle Tm and each of the integration value and the differential values; and a data analysis part 31 which calculates respective average values M0 to M2 of the totalized values and respective coefficients of variation CV1, CV2 of the totalized values, which are described with respect to the respective differential values of the low frequency component and the high frequency component in the analysis data D1, and judges a genre of music outputted from the music reproduction device based on the calculation result.
摘要:
The music genre judging device comprises: a signal processing unit 10 for outputting integration value and differential value for each of low-frequency component and high-frequency component of music reproduction signal inputted from a music reproduction device 100 to a line input terminal 4; a data generation unit 30 for inputting the integration value and the differential value outputted from the signal processing value by each predetermined sampling unit time, judging whether or not each of the integration value and the differential value exceeds a predetermined level within the sapling unit time, and generating analysis data obtained by totalizing for each sampling cycle, the number of times of judgments that the value exceeding the predetermined level is detected; and a data analysis unit 31 for judging a genre of music outputted from the music reproduction n device 100 based on the totalized value of the analysis data.
摘要:
A method of determining a dog's emotions from its voice with objective supports. The invention follows the procedures of converting dog's voices into electrical audio signals, extracting characteristics in a time to frequency component relation map of the audio signals as a input voice pattern, storing in advance in memory reference voice patterns for various emotions that respectively represent characteristics of time to frequency component relation maps, comparing the input voice pattern with the reference voice patterns, and determining what a dog feels by declaring emotion of the particular reference voice pattern showing the highest correlation with the input voice pattern as a result of the comparison, and emotions represented by the reference voice patterns include “loneliness”, “frustration”, “aggressiveness”, “assertiveness”, “happiness”, and “wistfulness”, and hence, the present invention attains an effective way of determining dog's emotions with objective supports.
摘要:
Speech recognition in prior art uses one extracted characteristic component (x.sub.i) to represent one phoneme (X.sub.i) as spoken by one speaker. This invention provides for recognizing the same phoneme as spoken by different speakers, by deriving a group of such components (x.sub.ik), each a slight variant of the others, to allow finding one component most similar to both the specific phoneme and specific speaker, the method comprising the steps of: normalizing the sound pressure level of an input speech from an unknown speaker; analyzing the normalized voice in a plurality of channels having different frequencies; setting, with respect to the output F.sub.j of each frequency band thus analyzed, a weight .alpha..sub.j of the output F.sub.j so that weight .alpha..sub.j corresponds to a characteristic of a predetermined phoneme X.sub.i ; extracting the characteristic component x.sub.i of the phoneme X.sub.i, setting a weight .beta..sub.j of output F.sub.j so that, when the extracted characteristic component x.sub.i causes a malfunction or error due to another phoneme X.sub.e, a characteristic of phoneme X.sub.e is corresponded to; simultaneously extracting the characteristic component x.sub.e of phoneme X.sub.e and, when the difference between the characteristic components thus extracted is greater than a predetermined threshold value .gamma..sub.i, applying the difference as a characteristic parameter for the phoneme x.sub.i ; expanding the characteristic parameter to obtain a characteristic parameter group based on the characteristic parameter, each being slightly different from each other so as to be adapted for individual characteristics of different speakers; subsequently extracting from the characteristic parameter group a characteristic parameter, having maximum similarity to a reference parameter previously memorized, as an adaptive parameter adaptive to the unknown speaker; and, matching a standard pattern derived from the extracted adaptive parameters with an unknown pattern corresponding to the unknown speakers, thereby effecting recognition or analysis of the voice.
摘要:
A music genre judging device able to judge a genre of music in a relatively simple structure.The music genre judging device is provided with a signal input part 4 which takes in music reproduction signal outputted from a music reproduction device 100; a signal processing part 10 which outputs an integration value and a differential value of a low frequency component and a differential value of a high frequency component of the music reproduction signal taken in by the signal input part 4; a data generating part 30 which takes in the integration value and the differential values outputted from the signal processing part 10 for each prescribed sampling unit time Tn, judges whether the integration value and the differential value of the low frequency component and the differential value of the high frequency component exceed respective prescribed levels within the sampling unit time Tn, and generates analysis data D1 obtained by totalizing numbers of times of judgment when a value exceeding the prescribed level is detected for each prescribed sampling cycle Tm and each of the integration value and the differential values; and a data analysis part 31 which calculates respective average values M0 to M2 of the totalized values and respective coefficients of variation CV1, CV2 of the totalized values, which are described with respect to the respective differential values of the low frequency component and the high frequency component in the analysis data D1, and judges a genre of music outputted from the music reproduction device based on the calculation result.