JP2916307B2 - Audio transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice transmitting apparatus for transmitting voice data using a radio apparatus that cannot continuously transmit data for a predetermined time or more.

[0002]

2. Description of the Related Art Speech recognition technology is an excellent man-machine
It plays an important role in realizing the interface. Then, as a method for the speaker to input speech to the speech recognition device while freely moving, the speech recognition device was downsized and built into the transmitter side, and the code signal of the synthesized result was skipped by wireless communication and input to the computer And a method of skipping a voice signal input by a speaker from a microphone by wireless communication and inputting it to a voice recognition device. At the same time, it is necessary to use a speech synthesizer to synthesize a description for using the speech recognition device and a message for the recognition result using a speech synthesis device, and to notify the speaker by voice via radio.

[0003] By the way, for example, "specific low power radio station"
When (Article 6 of the Enforcement Regulations of the Radio Law) is applied to the above wireless communication, the carrier cannot always be kept in the transmission state because there are restrictions on the continuous communication time and provisions for suspension of transmission. Therefore, when a message or the like longer in time than the limit of the continuous communication time is desired to be synthesized and transmitted, the transmission is suspended when the continuous communication time elapses regardless of the content phrase of the message. A voice which is difficult to hear is received.

[0004]

As described above, in the related art, when a wireless station having a continuous communication time limit or a transmission suspension rule is used, the time is longer than the continuous communication time limit. When a message or the like is synthesized and transmitted, the transmission of the message is interrupted in the middle of the continuous communication time without any context, so that a voice that is very difficult to hear is received.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to transmit a voice in a state where it is easy to hear when the transmission of the voice is expected to be stopped halfway. It is an object of the present invention to provide a speech synthesizer capable of causing the speech synthesis.

[0006]

That is, the present invention relates to a voice transmitting apparatus for reproducing and transmitting a voice recorded using a radio apparatus which cannot continuously transmit for a predetermined time or more, and does not exceed a predetermined length. As described above, audio data is divided into a plurality of units in advance in a grammatical unit, for example, a break of a sentence, a phrase, and the like, and the audio data is divided into a plurality of pieces and recorded. In what
If the transmission of the reproduced sound is expected to be interrupted halfway, the sound can be divided and transmitted at a natural and easy-to-listen position.

The present invention also provides a voice transmitting apparatus for transmitting voice data obtained by performing voice rule synthesis from a series of character data using a wireless device which cannot continuously transmit for a predetermined time or more. The output time after the rule combination is calculated, and the character data is divided according to a predetermined unit in the grammar, for example, a break of a sentence, a phrase, etc., so as not to exceed a certain time length that can be continuously transmitted according to the calculated output time. The voice data is divided into text data and converted into voice data by voice rule synthesis, and is then transmitted wirelessly each time the voice data is divided. In this case, the voice can be automatically divided and transmitted at a natural and easy-to-hear position.

[0008]

First Embodiment A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic circuit configuration thereof.
The range indicated by is the transmitter side, and the range indicated by 20 is the receiver side. Here, it is assumed that the transmitter side 10 performs radio communication based on the "specific low power radio station" with respect to the receiver side 20. .

[0010] On the transmitter side 10, audio data of digital values each having a length not exceeding a certain length, which are recorded in a first recording section 11a and a second recording section 11b, each constituted by, for example, a semiconductor memory, are arranged according to the order. The data is read out by the audio reproducing unit 12. The audio reproduction unit 12 reproduces the read audio data by, for example, the ADM method, and outputs the obtained audio data to the wireless transmission unit 13. The wireless transmission unit 13 modulates the voice data, superimposes the modulated data on a carrier having a specified frequency, and transmits the modulated radio wave as a radio wave. In this case, the length of the audio data recorded in each of the recording units 11a and 11b is determined in consideration of the continuous transmission possible time in the wireless transmission unit 13. In the receiver 20, the transmitted radio wave is received by the radio receiver 21, demodulated to obtain original audio data, and output from the audio output unit 22.

Also, as shown in FIG.
If it is desired to record a large amount of audio data such that the storage capacity is insufficient with only 11a and 11b, a recording unit may be further added as in an n-th recording unit 11n as shown in FIG. Next, the operation of the first embodiment will be described.

Now, for example, it is assumed that a message "Water temperature is abnormal. Check the cooling device." If the limit of the time that can be continuously transmitted by the wireless transmission unit 13 is “T” seconds, the time required to output this message by voice is “T + A” seconds (T
> A), this message is of course 1
Since transmission cannot be performed within the transmission time of one transmission, transmission must be performed in two transmissions.

Here, as shown in FIG. 4, a single message is simply recorded in the first recording unit 11a, and is transmitted for "T" seconds first, and remains after "S" seconds have been paused. When "A" seconds are transmitted, the transmission content is "Water temperature is abnormal. Check the cooling device" and "Please." As shown in the figure, and transmission pauses between "S" and "T". This is a message that is very difficult for the receiver 20 to hear.

Therefore, as shown in FIG. 5, the message "B" is displayed for "B" seconds (B <T).
The message is divided into two messages of “Check the cooling device” for two minutes (C <T) and recorded in the first recording unit 11a and the second recording unit 11b, respectively. Department
After transmitting the message "Water temperature is abnormal" for "B" seconds recorded in 11a and suspending the transmission for "S" seconds, the "C" seconds recorded in the second recording unit 11b The message "Check the cooling system." In this way, even if the voice data is divided into sentences on a grammatical unit and a transmission pause is inserted between the divided sentences, the message is divided into two and the message is transmitted.
The voice output unit 22 can output a natural and easily audible message by voice.

If the "C" seconds are longer than the "T" seconds and the transmission pause is inserted between sentences only, as shown in FIG.
In the case where the message is further divided into two such as "Please check", if the message is transmitted as it is and the sound is output, the message becomes very hard to hear as in the case shown in FIG.

Therefore, as shown in FIG. 7, the above message is divided into "E" seconds (E <T) for "cooling device" and "F" seconds (F <T) for "check." The message is divided into two messages and recorded in the second recording unit 11b and the third recording unit 11c (not shown), respectively, and the “cooling device” for “E” seconds recorded in the second recording unit 11a is used. ”, And after pausing the transmission for“ S ”seconds, the third recording unit
Send a message "Please check" for "F" seconds recorded in 11c. In this way, the audio data is divided into grammatical units, and transmission pauses are inserted between the divided verses, so that even if the divided messages are transmitted, the audio output unit 22 naturally listens. Easy messages can be output by voice.

In the first embodiment, the first recording unit 11
a, the second recording unit 11b is described as being configured with a semiconductor memory, but the present invention is not limited to this, and other recording media such as a tape recorder may be used.

Similarly, the audio reproducing section 12 reproduces digital audio data by the ADM method. However, the present invention is not limited to this, and another audio synthesizing method such as ADPCM may be employed. Of course.

[0019]

Second Embodiment Next, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 8 shows a schematic circuit configuration thereof.
The range indicated by is the transmitter side, and the range indicated by 40 is the receiver side. Here, it is assumed that the wireless communication based on the “specific low-power wireless station” is performed from the transmitter side 30 to the receiver side 40 .

In the transmitter 30, first, sentence data consisting of a series of character code data input by a sentence data input unit 31 composed of a word processor or the like is read out to an output time calculation unit 32.

The output time calculation section 32 calculates the output time required for speech synthesis according to predetermined speech synthesis information such as the reading speed from the read sentence data, and when the output time does not exceed the continuous transmission time specified in advance. Outputs the sentence data to the speech synthesis unit 33 as it is, and if it exceeds, outputs the calculated output time data and sentence data to the sentence division unit 34.

The sentence division unit 34 divides the sentence data into grammatical sentences in accordance with the output time data from the output time calculation unit 32 and the sentence data, and divides the divided result into a speech synthesis unit 33 and a radio transmission unit 35. To send to.

The speech synthesizing unit 33 performs speech rule synthesis based on the sentence data sent from the output time calculating unit 32 or the sentence dividing unit 34 by, for example, a waveform synthesizing method, and outputs the obtained speech data to the radio transmitting unit 35. I do.

The radio transmitting section 35 modulates the voice data from the voice synthesizing section 33 into a carrier having a prescribed frequency while inserting a transmission pause in accordance with the transmission timing according to the division result input from the sentence dividing section 34. Superimposed and transmitted as radio waves. On the receiver side 40, the transmitted radio wave is
And demodulate to obtain the original audio data, which is output from the audio output unit 42.

Next, the operation of the second embodiment will be described. The sentence data used for speech synthesis and the processing contents are the same as those used in the first embodiment, and FIGS. 3 to 7 are used.

That is, the text data of the message “Water temperature is abnormal. Check the cooling device.” Shown in FIG. If the limit is “T” seconds, the time required to output this message by voice is “T +
If it is A "seconds (T> A), this message cannot be transmitted within one transmission time, so it is necessary to transmit the message in two transmissions.

Here, as shown in FIG. 4, the data read from the character data input unit 31 is first calculated by the output time calculation unit 32 for "T" seconds, and transmitted by the speech synthesis unit 33 and the radio transmission unit 35. "A" remaining after pausing transmission for "S" seconds
If you send the seconds and minutes, as shown in the figure, the content of the transmission will be “Water temperature is abnormal. Check the cooling device” and “Please”. The transmission is suspended between “S” and “T”. This makes the message very difficult to hear.

Then, in response to the result of the calculation of the output time by the output time calculation unit 32, the sentence division unit 34 detects, for example, a period "." And converts the message to "B" seconds (B) as shown in FIG.
<T) “Water temperature is abnormal.” And “C” seconds (C <T)
Is divided into two messages, "Please check the cooling device.", And the two divided text data are sent to the voice synthesizer 33, and the output time data of "B" seconds and "C" seconds are sent to the radio transmitter. Send to the 35, first send the message "Water temperature is abnormal" for "B" seconds, pause the transmission for "S" seconds, and then check the "C" for "C" seconds Please send me a message. "

As described above, the sentence data is divided into sentences on a grammatical basis, and a transmission pause is inserted between the divided sentences, so that even if the message is transmitted twice, even if the message is transmitted twice, the voice output is performed. The unit 42 can output a natural and easily audible message by voice.

If the "C" seconds are longer than the "T" seconds, and only a transmission pause is inserted between sentences, as shown in FIG.
In the case where the message is further divided into two such as "Please check", if the message is transmitted as it is and the sound is output, the message becomes very hard to hear as in the case shown in FIG. .

Therefore, as shown in FIG.
It is also conceivable to provide a phrase division unit 36 that divides the sentence data in grammatical units in parallel with the above. in this case,
At the same time as the sentence division unit 34 divides the sentence data into grammatical sentences, the phrase division unit 36 performs grammatical analysis on the sentence data to divide the sentence data into grammatical units, and outputs the segmentation result to the speech synthesis unit. The output time data is sent to the wireless transmission unit 35 at 33.

By the segmentation process performed by the phrase segmentation unit 36, FIG.
As shown in the above, the above message is further divided into two messages, "Check the cooling device" for "E" seconds (E <T) and "Check out" for "F" seconds (F <T). The message "cooling device" for "E" seconds is transmitted from the wireless transmission unit 35, and after "S" seconds have been paused, a "Check" message for "F" seconds is transmitted. To do. Even if the sentence data is divided and the message is transmitted by dividing the sentence data into grammatical units and inserting transmission pauses between the divided verses, the audio output unit
22 can output a natural and easy-to-understand voice message.

In the second embodiment, an example in which a waveform synthesizing method is adopted as the audio rule synthesizing method in the audio synthesizing unit 33 is described. However, the present invention is not limited to this. Of course, other methods may be used.

[0035]

As described above in detail, according to the present invention, in a voice transmitting apparatus for reproducing and transmitting a voice recorded using a radio apparatus which cannot continuously transmit for a predetermined time or more,
A certain unit of grammar, such as a sentence, so as not to exceed a certain length
The audio data is divided into a plurality of breaks and recorded in advance, and the audio data is recorded in advance, and the recorded audio data is reproduced and transmitted in units of division. It is possible to provide a voice transmitting device capable of dividing and transmitting the voice at a natural and easy-to-listen position and transmitting the voice when it is expected that the voice will be stopped halfway.

According to the present invention, there is provided a voice transmitting apparatus for transmitting voice data obtained by performing voice rule synthesis from a series of character data using a wireless device which cannot continuously transmit for a predetermined time or more. Calculate the output time after the synthesis of the speech rules, and classify the character data according to a predetermined unit in the grammar, for example, a break of a sentence, a phrase, etc., according to the calculated output time so as not to exceed a fixed time length that allows continuous transmission. After dividing the character data into voice data by voice rule synthesis of the divided character data and transmitting it wirelessly each time the data is divided, it is expected that the transmission of the voice synthesized by rule will be interrupted halfway. In this case, it is possible to provide a voice transmitting apparatus capable of automatically dividing the voice at a natural and easy-to-recognize position and transmitting the voice.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a circuit configuration according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing an extended example of the circuit of FIG. 1;

FIG. 3 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 4 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 5 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 6 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 7 is a view for explaining the operation of the embodiment of the present invention.

FIG. 8 is a block diagram showing a circuit configuration according to a second embodiment of the present invention.

FIG. 9 is a block diagram showing an example of extension of the circuit of FIG. 8;

[Explanation of symbols]

10, 30: transmitter side, 20, 40: receiver side, 11a, 11b, 11
n: recording section, 12: voice reproduction section, 13: wireless transmission section, 21, 41
... Wireless receivers, 22, 42 ... Audio output unit, 31 ... Character data input unit, 32 ... Output time calculation unit, 33 ... Speech synthesis unit, 34 ... Sentence division unit, 35 ... Wireless transmission unit, 36 ... Phrase division unit .

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04B 1/04 G10L 3/00 H04H 1/00

Claims (6)

(57) [Claims] An audio transmitting apparatus for reproducing and transmitting audio data recorded using a wireless device that cannot continuously transmit for a predetermined time or more, comprising: Recording means for dividing the audio data into a plurality of pieces and recording the audio data by dividing the audio data into a plurality of predetermined units; reproducing means for reproducing the audio data recorded in the recording means; And a transmitting means for performing radio transmission every time the voice is transmitted. 2. The recording apparatus according to claim 1, wherein said recording means records the voice data by dividing the voice data at a break between sentences.
An audio transmission device according to claim 1. 3. The voice transmitting apparatus according to claim 1, wherein said recording means divides the voice data at a break of a phrase and records a plurality of divided data. 4. A voice transmitting apparatus for transmitting voice data obtained by performing voice rule synthesis from a series of character data using a wireless device that cannot continuously transmit for a predetermined time or more, comprising: Output time calculating means for calculating the output time of the character; and dividing the characters by predetermined grammatical breaks according to the output time obtained by the output time calculating means so as not to exceed the predetermined time length capable of continuous transmission. Dividing means for dividing the data into a plurality of pieces; voice rule synthesizing means for synthesizing the character data divided by the dividing means according to a voice rule; and wirelessly transmitting the voice data obtained by the voice rule synthesizing section each time the data is divided An audio transmission device comprising: a transmission unit. 5. The voice transmitting apparatus according to claim 4, wherein said dividing means divides the character data into a plurality of parts by dividing the character data at a break between sentences. 6. The voice transmitting apparatus according to claim 4, wherein said dividing means divides the character data at a break of a phrase and divides the character data into a plurality of pieces.