SU568964A1 - Method of recognition of speech signals in communication channels - Google Patents

Method of recognition of speech signals in communication channels

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Publication number
SU568964A1
SU568964A1 SU7602335454A SU2335454A SU568964A1 SU 568964 A1 SU568964 A1 SU 568964A1 SU 7602335454 A SU7602335454 A SU 7602335454A SU 2335454 A SU2335454 A SU 2335454A SU 568964 A1 SU568964 A1 SU 568964A1
Authority
SU
USSR - Soviet Union
Prior art keywords
recognition
communication channels
speech signals
speech signal
speech
Prior art date
Application number
SU7602335454A
Other languages
Russian (ru)
Inventor
Михаил Яковлевич Лебедь
Николай Иванович Вергелис
Петр Антонович Сивоконь
Original Assignee
Войсковая Часть 25871
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Войсковая Часть 25871 filed Critical Войсковая Часть 25871
Priority to SU7602335454A priority Critical patent/SU568964A1/en
Application granted granted Critical
Publication of SU568964A1 publication Critical patent/SU568964A1/en

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Description

1one

Изобретение относитс  к области акустики, а именно к способам распознавани  речевых сигналов, и может найти применение дл  распознавани  речевых сигналов в каналах св зи тональной частоты. .The invention relates to the field of acoustics, and specifically to methods for recognizing speech signals, and can be used to recognize speech signals in communication channels of a tonal frequency. .

Известный способ распознавани  речевых сигналов в каналах св зи путем выделени  огибающей речевого сигнала 1 обеспечивает высокую точность распознавани  речевых сигналов, однако его осуществление сопр жено со значительными трудност ми.The known method of recognizing speech signals in communication channels by extracting the envelope of speech signal 1 provides high accuracy in the recognition of speech signals, but its implementation is associated with considerable difficulties.

Наиболее близким к изобретению по технической сущности  вл етс  способ распознавани  речевых сигналов в каналах св зи путем выделени  амплитуды огибающей речевого сигнала, формировани  пр моугольных импульсов , измерени  периодов следовани  пр моугольных импульсов и различени  речевого сигнала 2.The closest to the invention according to the technical essence is a method for recognizing speech signals in communication channels by selecting the amplitude of the envelope of a speech signal, generating square pulses, measuring periods of following square pulses and distinguishing a speech signal 2.

Этот способ может быть реализован достаточно простыми средствами, однако при его использовании в результат распознавани  вноситс  значительна  погрешность.This method can be implemented using rather simple means; however, when it is used, a significant error is introduced into the recognition result.

Дл  уменьшени  погрешности результата распознавани  речевых сигналов по предлагаемому способу при формировании пр моугольных импульсов осуществл ют квантование огибающей речевого сигнала импульсами клиппированного речевого сигнала, а различение речевого сигнала производ т по равенству длительности более двух следующих один за другим периодов пр моугольных импульсов .To reduce the error of speech recognition by the proposed method, when forming rectangular pulses, the envelope of the speech signal is quantized by clipping speech signal pulses, and the speech signal is discriminated by equal duration more than two successive periods of rectangular pulses.

На чертеже изображен вариант устройства дл  реализации предложенного способа.The drawing shows a variant of the device for implementing the proposed method.

Устройство содержит блок согласовани  1, подсоединенный к каналу св зи 2 и подключенный к блоку управлени  3 через усилитель-ограничитель 4 и через соединенные последовательно блок 5 выделени  огибающей и другой усилитель - ограничитель 6. Блок управлени  3 соединен с блоком сравнени  7 через первый счетчик 8, через второй счетчик 9 и непосредственно. Кроме того, блок управлени  3 подключен к третьему счетчику 10 и к триггеру 11. Выход блока сравнени  7 подсоединен к блоку управлени  3 и к третьему счетчику 10, св занному через триггер 11 с выходной шиной 12.The device contains a matching unit 1 connected to the communication channel 2 and connected to the control unit 3 through the amplifier-limiter 4 and through an envelope allocation unit 5 connected in series and another amplifier-limiter 6. The control unit 3 is connected to the comparison unit 7 via the first counter 8 , through the second counter 9 and directly. In addition, the control unit 3 is connected to the third counter 10 and to the trigger 11. The output of the comparison unit 7 is connected to the control unit 3 and to the third counter 10 connected via trigger 11 to the output bus 12.

Распознавание речевых сигналов в каналах св зи согласно предлагаемому способу происходит следующим образом. Из сигнала, поступаюшего по каналу св зи, выдел ют огибающую речевого сигнала и производ т формирование пр моугольных импульсов. При этом при формировании пр моугольных имщ льсов осуществл ют квантование огибающей речевого сигнала импульсами клиппированного речевого сигнала. Затем производ т измерение периодов пр моугольных импульRecognition of speech signals in communication channels according to the proposed method is as follows. From the signal received via the communication channel, the envelope of the speech signal is extracted and square wave pulses are generated. At the same time, during the formation of rectangular properties, the envelope of the speech signal is quantized by pulses of a clipped speech signal. The measurement of the periods of the rectangular impulses is then made.

SU7602335454A 1976-01-19 1976-01-19 Method of recognition of speech signals in communication channels SU568964A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7602335454A SU568964A1 (en) 1976-01-19 1976-01-19 Method of recognition of speech signals in communication channels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7602335454A SU568964A1 (en) 1976-01-19 1976-01-19 Method of recognition of speech signals in communication channels

Publications (1)

Publication Number Publication Date
SU568964A1 true SU568964A1 (en) 1977-08-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU7602335454A SU568964A1 (en) 1976-01-19 1976-01-19 Method of recognition of speech signals in communication channels

Country Status (1)

Country Link
SU (1) SU568964A1 (en)

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