JP2817471B2 - Playback 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 reproducing apparatus such as a cassette tape recorder with radio (hereinafter referred to as a radio cassette player).

[0002]

2. Description of the Related Art In recent years, various speech synthesis LSIs have been supplied at low cost as speech synthesis means. Various devices that use a voice synthesizing means called a "speaking machine" using the LSI (hereinafter, referred to as a voice generating function) have also been embodied and widely spread. In a playback device such as a radio-cassette or the like, the speech synthesis
What embodies the vocalization function using SI has begun to be supplied to the market as a product.

An example of the above-described conventional reproducing apparatus will be described below with reference to the drawings. FIG. 4 is a block diagram of a conventional reproducing apparatus. In FIG. 4, reference numeral 30 denotes reproducing means, 31 denotes a magnetic head, and 32 denotes a preamplifier. The reproducing means 30 is composed of the magnetic head 31 and the preamplifier 32. Thus, the reproducing means 30 is a magnetic tape reproducing means. The signal recorded on the magnetic tape is detected by a magnetic head 31, frequency-corrected and amplified by a preamplifier 32, and output as an output of a reproducing unit 30.

[0004] 33 is a voice synthesizing means, 34 is a storage circuit, 3
5 is a PCM synthesizer circuit, 36 is a D / A conversion circuit (digital / analog conversion circuit), 37 is an oscillation circuit, 38
Is a control circuit. The storage circuit 34, the PCM synthesizer circuit 35, the D / A conversion circuit (digital-to-analog conversion circuit) 36, the oscillation circuit 37, and the control circuit 38 constitute the voice synthesis means 33. As described above, the speech synthesizer 33 itself is currently embodied by one LSI. The storage circuit 34 is a read-only memory, in which data of a word corresponding to the designated address is stored at a designated address. When the address is input as an input signal, the control circuit 38 outputs data of an address corresponding to the input signal from the storage circuit 34 to the PCM synthesizer circuit 35 in synchronization with a clock pulse generated by the oscillation circuit 37. The PCM synthesizer circuit 35 converts the input data into digital data of an audio signal and outputs the digital data to a D / A conversion circuit (digital / analog conversion circuit) 36. A D / A conversion circuit (digital-to-analog conversion circuit) 36 converts the input digital signal into an analog signal and outputs it. The output of the D / A conversion circuit (digital / analog conversion circuit) 36 becomes the output of the voice synthesis means 33. Further, the input signal to the control circuit 38 becomes the input signal of the voice synthesizing means 33.

[0005]

[Table 1]

Here, Table 1 shows addresses of the storage circuit 34 and phrases corresponding to the addresses. The utterance words in Table 1 are output signals of the D / A conversion circuit (digital / analog conversion circuit) 36 finally. But also. From Table 1, if the address data of 28h (h represents a hexadecimal number) is input to the voice synthesis means 33, the voice synthesis means 33 outputs "am" and a series of words "8:03 am" To be output, 28h, 08h, 2Ah, 03h, 2B
h, 2Eh address data continuously
3 can be input. Since the output of the voice synthesizing unit 33 is synchronized with the clock pulse generated by the oscillation circuit 37, the time required to output a series of generated words is constant and a known value.

A mixing means 39 mixes the output of the reproducing means 30 and the output of the voice synthesizing means 33.

Reference numeral 40 denotes a sound volume changing means, which is constituted by a variable resistor or the like, and adjusts the level of the output signal of the mixing means 39, and the user sets an arbitrary sound volume.
45 is a power amplifying means, and 46 is a speaker. The output of the reproducing means 30 and the output of the voice synthesizing means 33 are mixed by the mixing means 39, and the signal level is adjusted by the volume varying means 40.
The power is amplified by the power amplifier 45 and output from the speaker 46. Reference numeral 42 denotes a control unit. The output of the control unit 42 controls the voice synthesizing unit 33 via a signal line L10.
43 is a time counting storage means for counting and storing the current time.
Reference numeral 41 denotes a one-chip microcomputer (hereinafter, referred to as a microcomputer). The microcomputer 41 constitutes the control means 42 and the time counting storage means 43. 44 is an audio clock switch.

FIG. 5 is a part of a flowchart of a main program of the microcomputer 41. The main program is repeatedly executed while the microcomputer 41 is operating. In FIG. 5, C and D are connectors.

The operation of the microcomputer 41 will be described below with reference to FIG. Step 20 is a time counting process for counting and storing the current time. Step 21 is an audio clock switch 44
It is determined whether the sound clock switch 44 is on or not.
When is turned on, the process proceeds to step 22, and when turned off, the series of processes in FIG. 5 is ended. Step 22 is a time data output process in which the current time stored in step 20 is converted into output data to the voice synthesizing means 33 based on Table 1 and output to the voice synthesizing means 33. For example, if the current time is 8:03, 28h, 08h, 2Ah, 03h, 2Bh, 2Eh
Is output to the speech synthesis means 33.

As described above, when the user turns on the audio clock switch 44 arbitrarily, the current time is output from the speaker 46 as audio.

[0012]

However, in the conventional reproducing apparatus as described above, since the user adjusts the volume varying means 40 in accordance with the output level of the reproducing means 30, for example, the recording is made at a very low level. When a magnetic tape is being played, the volume of the volume varying means 40 is set high (in a state where the volume is raised). If the voice synthesizing means 33 outputs a signal by turning on the audio clock switch 44 in this state, there is a problem that the output from the voice synthesizing means 33 is output from the speaker 46 at a very large volume.

According to the present invention, in view of the above-mentioned conventional problems, when a signal is output from a voice synthesizing unit, the voice synthesizing unit outputs a signal when a set volume of a volume variable unit is higher than a predetermined volume. It is an object of the present invention to provide a reproducing apparatus for setting a set volume of a volume variable means to a predetermined volume during a period.

[0014]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a reproducing apparatus of the present invention comprises one or more audio signal reproducing means or audio signal input means, a voice synthesizing means, an output of said reproducing means, Mixing means for mixing the output of the voice synthesis means, volume variable means for adjusting the level of the output signal of the mixing means, control means for controlling the voice synthesis means and the volume variable means, and the current volume It has storage means for storing the set volume of the variable means.

[0015]

According to the present invention, when the sound volume is set to a predetermined level or more when a signal is output from the voice synthesizing means, the volume of the voice synthesizing means is controlled during the period when the voice synthesizing means outputs the signal. Is set to the predetermined volume.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a reproducing apparatus according to the present invention.

FIG. 1 is a block diagram of a reproducing apparatus according to an embodiment of the present invention. In FIG. 1, 1 is a first reproducing means, 2 is a magnetic head, and 3 is a preamplifier. The magnetic head 2 and the preamplifier 3 constitute the first reproducing means 1. Thus, the first reproducing means 1 is a magnetic tape reproducing means. The signal recorded on the magnetic tape is detected by the magnetic head 2, frequency-corrected and amplified by the preamplifier 3, and output as the output of the first reproducing means 1.
4 is a second reproducing means, 5 is an antenna, 6 is a tuning circuit, 7
Is a detection circuit. The antenna 5, the tuning circuit 6, and the detection circuit 7 constitute a second reproducing means 4. The second reproducing means 4 is a radio broadcast receiving means. The radio wave input from the antenna 5 is tuned by the tuning circuit 6, detected by the detection circuit 7, and output as the output of the second reproducing means 4. Reference numeral 14 denotes a changeover switch for the user to select any one of the output of the first reproducing means 1 and the output of the second reproducing means 4.

Reference numeral 10 denotes a voice synthesizing unit, 8 denotes a storage circuit, 9 denotes a PCM synthesizer circuit, 11 denotes a D / A conversion circuit (digital / analog conversion circuit), 12 denotes an oscillation circuit, and 13 denotes a control circuit. Storage circuit 8, PCM synthesizer circuit 9, D / A conversion circuit (digital / analog conversion circuit)
11, an oscillation circuit 12 and a control circuit 13 constitute the voice synthesizing means 10. The configuration and operation of the voice synthesizing means 10 are the same as those of the voice synthesizing means 33 in the above-mentioned conventional example. As described above, the speech synthesis means 10 itself is currently embodied in one LSI. The storage circuit 8 is a read-only memory, in which data of a phrase corresponding to the designated address is stored at a designated address. When the control circuit 13 inputs the address as an input signal, the control circuit 13 synchronizes with a clock pulse generated by the oscillation circuit 12,
The data at the address corresponding to the input signal is output from the storage circuit 8 to the PCM synthesizer circuit 9. PC
The M synthesizer circuit 9 converts the input data into digital data of an audio signal and outputs the digital data to a D / A conversion circuit (digital / analog conversion circuit) 11. A D / A conversion circuit (digital / analog conversion circuit) 11 converts the input digital signal into an analog signal and outputs the analog signal. This D
The output of the / A conversion circuit (digital-to-analog conversion circuit) 11 becomes the output of the voice synthesis means 10. The control circuit 13
Is the input signal of the speech synthesis means 10. Here, Table 1 shows addresses of the storage circuit 8 and words corresponding to the addresses, as in the conventional example. The utterance words in Table 1 are the output of the D / A conversion circuit (digital-analog conversion circuit) 11 finally. It is also a signal. From Table 1, if the address data of 28h is input to the voice synthesizing means 10, the voice synthesizing means 10 outputs "am", and in order to output a series of words "8:03 am", 28h, 0
Address data of 8h, 2Ah, 03h, 2Bh, and 2Eh may be continuously input to the voice synthesizing unit 10. Since the output of the voice synthesizing means 10 is synchronized with the clock pulse generated by the oscillation circuit 12, the time required for outputting the series of uttered words is constant and a known value.

Reference numeral 15 denotes a mixing means, and a changeover switch 14
The output of the first reproducing means 1 or the output of the second reproducing means 4 and the output of the voice synthesizing means 10 selected by the above are mixed. Reference numeral 16 denotes a sound volume varying means, which is constituted by an IC for controlling the sound volume by an electric signal generally called an electronic volume, and is for adjusting the level of the output signal of the mixing means 15; Set. 24 is a power amplifying means, and 25 is a speaker.

The output of the first reproducing means 1 or the output of the second reproducing means 4 and the output of the voice synthesizing means 10 are mixed by a mixing means 15, the signal level is adjusted by a volume varying means 16, The power is amplified by the amplifier 24 and output from the speaker 25. Reference numeral 17 denotes a control unit. The output of the control unit 17 controls the voice synthesizing unit 10 via the signal line L1, and the output of the control unit 17 controls the volume varying unit 16 via the signal line L2. 20 is a time counting means,
Count the current time. Reference numeral 18 denotes a storage unit that stores the current volume of the volume variable unit 16 set by the user and the current time counted by the time counter 20. Reference numeral 19 denotes a one-chip microcomputer (hereinafter, referred to as a microcomputer). The microcomputer 19 controls the control means 17 and the storage means 18
And the time counting means 20.

Reference numeral 21 denotes an audio clock switch. When the audio clock switch 21 is turned on, the microcomputer 19 is programmed to output the current time to the audio synthesizing means 10.

Reference numeral 22 denotes a volume reduction switch. When the volume reduction switch 22 is turned on, the microcomputer 19 is programmed to decrease the volume of the volume varying means 16 (volume down). 23 is a volume increase switch. When the volume increase switch 23 is turned on, the microcomputer 1
9 is programmed to increase (volume up) the volume of the volume varying means 16. The volume of the volume varying unit 16 set by the user operating the volume decreasing switch 22 and the volume increasing switch 23 is stored in the storage unit 18.

FIG. 2 is a part of a flowchart of the main program of the microcomputer 19, and the main program is repeatedly executed while the microcomputer 19 is operating. In FIG. 2, A and B are connectors.

The operation of the reproducing apparatus configured as described above will be described below mainly on the operation of the microcomputer 19.
A description will be given based on the flowchart of FIG.

Step 1 is a time counting process in which the current time is counted and stored. When the process of step 1 is completed, the process proceeds to step 2. In step 2, it is determined whether or not the volume reduction switch 22 is on. If the volume reduction switch 22 is on, the process proceeds to step 4, and if it is off, the process proceeds to step 3.
Step 4 is a volume reduction process. The new volume obtained by attenuating the current volume of the volume variable unit 16 by a certain level is stored as the current volume of the volume variable unit 16 and the volume of the volume variable unit 16 is stored in the new volume. An output for setting the sound volume to an appropriate level is output to the sound volume varying means 16 via the signal line L2. By the processing of this step 4, the volume reduction switch 2
Turning on 2 decreases the volume of the volume varying means 16 (decreases the volume). Step 4
When the processing is completed, the process proceeds to step 6. In step 3, it is determined whether or not the volume increase switch 23 is on. If the volume increase switch 23 is on, the process proceeds to step 5, and if it is off, the process proceeds to step 6. Step 5 is a volume increase process in which a new volume obtained by increasing the volume of the current volume variable unit 16 by a certain level is stored as the current volume of the volume variable unit 16 and the volume of the volume variable unit 16 is stored in the new volume. An output for setting the sound volume to an appropriate level is output to the sound volume varying means 16 via the signal line L2. By the process of step 5, the volume of the volume varying means 16 is increased (volume is increased) by turning on the volume increasing switch 23. When the process of step 5 is completed, the process proceeds to step 6. In step 6, it is determined whether or not the audio clock switch 21 is on. When the audio clock switch 21 is on, the process proceeds to step 7, and when the audio clock switch 21 is off, the series of processes in FIG. 2 ends. Step 7 is time utterance processing.
Is converted into output data to the voice synthesizing means 10 based on Table 1 and output to the voice synthesizing means 10. For example, if the current time is 8:03, 28h, 08
The address data of h, 2Ah, 03h, 2Bh, and 2Eh are output to the speech synthesis unit 10. By turning on the audio clock switch 21 by the processing of step 7, the audio synthesizing means 10 outputs the current time, and the speaker 25 outputs the current time as audio. When the process of step 7 ends, a series of processes of FIG. 2 ends.

FIG. 3 shows a program of the microcomputer 19.
3 is a flowchart of a time utterance process which is step 7 in the flowchart of FIG. 2. Next, the above-mentioned time utterance processing will be described in detail based on the flowchart of FIG. First, in the present embodiment, the volume of the volume varying means 16 during the period when the voice synthesizing means 10 is outputting a signal is set to -30 dB.

In step 8, it is determined whether or not the sound volume of the sound volume changing means 16 stored in the storage means 18 is -30 dB or more. If the current sound volume is -30 dB or more, the process proceeds to step 9; If so, go to step 14. Step 14 is a time data output process in which the current time stored in step 1 of FIG. 2 is converted into output data to the voice synthesizing unit 10 based on Table 1 and output to the voice synthesizing unit 10. For example, if the current time is 8:03, 28h, 08h, 2A
The address data of h, 03h, 2Bh, and 2Eh are output to the speech synthesis unit 10. By the processing in step 14, the voice synthesizing means 10 outputs the current time. When the processing of step 14 ends, the series of processing in FIG. 3 ends. Step 9 is a volume change process.
Is output to the volume varying means 16 via the signal line L2. By the processing in step 9, the volume of the volume varying means 16 is set to -30 dB. When the process of step 9 is completed, the process proceeds to step 10. In step 10, measurement of the time during which the voice synthesizing unit 10 is outputting a signal is started. When the measurement is started, the process proceeds to step 11. Step 11 is a time data output process, which converts the current time stored in step 1 of FIG. 2 into output data to the voice synthesizing means 10 based on Table 1 and outputs the data to the voice synthesizing means 10. For example, if the current time is 8:03, 28h, 08h, 2Ah, 03h, 2Bh, 2Eh
Is output to the speech synthesis means 10. By the processing in step 11, the voice synthesizing unit 10 utters the current time. When the process of step 11 is completed, the process proceeds to step 12. Step 12 is the speech synthesis means 10
Has finished outputting, and determines whether or not the speech
Is determined based on the result of the time measurement started in step 10. In the present invention, since the time to output each utterance phrase is known in advance as described above,
The speech synthesizing unit 10 determines that the output operation has ended when the output time of the combination requiring the longest time to output out of all the combinations of the phrases necessary for the output of the time has elapsed. When the output operation of the voice synthesizing unit 10 is completed, the process proceeds to step S13. Step 13 is a volume restoration process, in which an output for setting the volume of the volume variable unit 16 to the volume set by the user stored in the storage unit 18 is output to the volume variable unit 16 via the signal line L2. By the processing in step 13, the sound volume of the sound volume varying means 16 returns to the state before the voice synthesizing means 10 outputs the current time. When the process of step 13 ends, a series of processes of FIG. 3 ends.

As described above, according to the present embodiment, when a signal is output from the voice synthesizing unit 10 and the volume set by the volume varying unit 16 is -30 dB or more, the period during which the voice synthesizing unit 10 is outputting a signal. , The volume of the volume varying means 16 is -30.
Set to dB.

In this embodiment, the sound volume changing means 16 is constituted by an electronic volume. However, the sound volume changing means may be constituted by an element for setting the sound volume by an electric signal, such as an electric volume for driving a variable resistor by a motor. Good.

In this embodiment, the volume of the volume varying means 16 during the period when the voice synthesizing means 10 is outputting a signal is set to -3.
Although set to 0 dB, this value may be arbitrarily determined by the designer in consideration of the purpose of use, the state of use, the level of the speaker output, and the like.

In this embodiment, the end of the output operation of the speech synthesizer 10 is determined by the combination of all the words necessary for the output of the time and the time when the output takes the longest time. The time in the combination of words and phrases necessary for the output may be calculated, and the determination may be made based on the calculated time.

In this embodiment, the end of the output operation of the voice synthesizing means 10 is determined by time. However, the control circuit 13 of the voice synthesizing means 10 is configured to output a signal indicating that the voice synthesizing means 10 is performing the output operation. Alternatively, the microcomputer 19 may detect and determine the presence or absence of a signal indicating that the output operation is being performed, which is output from the control circuit 13.

The first reproducing means 1 or the second reproducing means 4 of this embodiment may be replaced with an input means for inputting an output of another reproducing apparatus, for example, a CD player, for example, an input terminal or the like. Needless to say.

[0034]

As described above, according to the present invention, when the signal is output from the voice synthesizing means and the set volume of the volume variable means is higher than a predetermined volume, the voice synthesizing means outputs the signal. During this period, the set volume of the volume variable means is set to the predetermined volume, and the volume of the volume variable means is set to a high level (in a state where the volume is raised), and recording is performed at a very low level. When the magnetic tape is being reproduced by the magnetic tape reproducing means, even when the audio clock switch is turned on and an output is generated from the voice synthesizing means, the sound is not output from the speaker at a very large volume, and is very easy to use. Is a good one.

[Brief description of the drawings]

FIG. 1 is a block diagram of a reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart of a program of a microcomputer 19 in FIG. 1;

FIG. 3 is a flowchart of a program of a microcomputer 19 in FIG. 1;

FIG. 4 is a block diagram of a conventional reproducing apparatus.

FIG. 5 is a flowchart of a program of a microcomputer 41 in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 First reproducing means 2 Magnetic head 3 Preamplifier 4 Second reproducing means 5 Antenna 6 Tuning circuit 7 Detection circuit 10 Voice synthesis means 14 Changeover switch 15 Mixing means 19 Microcomputer 21 Audio clock switch 22 Volume reduction switch 23 Volume increase Switch 24 Power amplifying means 25 Speaker 30 Reproducing means 31 Magnetic head 32 Preamplifier 33 Voice synthesizing means 39 Mixing means 41 Microcomputer 44 Audio clock switch 45 Power amplifying means 46 Speaker L1 Signal line L2 Signal line L10 Signal line A Connector B coupling Child C connector D connector

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-202506 (JP, A) JP-A-3-91183 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) G11B 20/02 G11B 20/04 101

Claims (1)

(57) [Claims] An audio signal reproducing means or an audio signal input means; a voice synthesizing means; a mixing means for mixing an output of the reproducing means and an output of the voice synthesizing means; A volume varying unit for adjusting a level of an output signal; a control unit for controlling the voice synthesizing unit and the volume varying unit; and a storage unit for storing a current set volume of the volume varying unit; When outputting a signal from the means, when the set volume of the volume variable means is equal to or higher than a predetermined volume, the volume of the volume variable means is set to the predetermined volume while the voice synthesis means is outputting a signal. A playback device characterized by setting.