JPH01173955A - Telephone set - Google Patents

Abstract

PURPOSE:To prevent mischievous telephone from being performed by sending the voice of womankind by changing to the voice like that of mankind. CONSTITUTION:When a recording switch 8 is turned on after switching a change-over switch 13 to a terminal 13b, a clock signal switching circuit 11 is switched to 8K by a control circuit 9, and a voice signal from a transmission part 4b is analyzed at a voice analysis and synthesis circuit 12, and is converted to audio data, then, it is stored in an audio data memory circuit 7. Following that, when the recording switch 8 is turned off, the clock signal switching circuit 11 is switched to 6K, and a clock signal of 6kHz is supplied to the voice analysis and synthesis circuit 12. Then, the audio data stored in the audio data memory circuit 7 is synthesized with the voice signal at a low frequency of 6kHz, and is sent to a speech circuit 3. In such a way, the voice of the womankind is changed to the voice like that of the mankind, thereby, it is possible to prevent the mischievous telephone.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to telephones.

[Prior Art] Conventionally, as a prank call prevention function on 7u telephones,
For example, a recording device has a male voice recording a line such as ``Which one is your name?'' and the line is transmitted by operating a transmission switch to be heard by the other party.

[Problems to be Solved by the Invention] With the above-mentioned conventional telephone, it is possible to respond only with the words pre-recorded on the recording device, so a persistent caller may know that the words are recorded. , the effectiveness of preventing prank calls will be weakened.

The present invention aims to further enhance the effect of preventing prank calls.

[Means for Solving the Problems] The present invention provides an audio data storage circuit that stores audio data, a clock signal switching circuit that selectively outputs a clock signal for recording and a clock signal for playback, and a clock signal switching circuit that selectively outputs a clock signal for recording and a clock signal for reproduction. an audio analysis/synthesis circuit that analyzes a desired audio signal and stores it in the audio data storage circuit, and outputs an audio signal different from the original audio using a clock signal for reproduction based on the audio data from the audio data storage circuit; , a changeover switch is provided for selectively switching and outputting the audio signal from the transmitter of the handset and the audio signal from the audio analysis and synthesis circuit.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the drawing, 1 is a telephone line, 2 is a dial for transmitting a telephone number, 3 is a telephone communication circuit, 4 is a handset consisting of a receiving part 4a and a transmitting part 4b, and 5 is a telephone by raising and lowering the handset 4. A hook switch 6 switches the connection between the line 1 and the communication circuit 3, and 6 is a paging device that acoustically announces the arrival of a telephone call when the hook switch 5 is in the OFF state.

7 is an audio data storage circuit that stores audio data; 8 is a recording switch used to record the audio signal from the transmitter 4b; 9 is a control circuit that performs various controls by operating the recording switch 8; 10 is a recording circuit; A light emitting diode lights up in response to a signal from the control circuit 9 when the switch 8 is operated, and 11 is a clock signal switching circuit that selectively switches the output signal in response to a signal from the control circuit 9, and is linked to the recording switch 8. . Reference numeral 12 denotes a voice analysis and synthesis circuit which analyzes the voice signal from the transmitter 4b using the first clock signal from the clock signal switching circuit 11 and stores it in the voice data storage circuit 7. The data is converted into an audio signal based on the second clock signal from the clock signal switching circuit 11 and output. Reference numeral 13 denotes a changeover switch that selectively switches between and outputs the audio signal from the transmitting unit 4b and the audio signal from the audio analysis and synthesis circuit 12, and the terminal connected to the transmitting unit 4b is 13a, and the terminal connected to the audio analysis and synthesis circuit 12 is There are 13 terminals connected to
It is b.

Next, the operation will be explained.

First, when used as a normal telephone, the changeover switch 13 is connected to the terminal 13a, so voice cannot be recorded, and the voice signal output from the transmitter 4b is sent as is to the telephone circuit 3. Ru.

Next, the case where one's own voice quality is changed and transmitted will be explained. When the changeover switch 13 is switched to the terminal 13b and the recording switch 8 is turned on, the light emitting diode 10 is turned on by the control circuit 9, and the clock signal switching circuit 11 is switched to 8K, and the clock signal for 8KHz sampling is used for audio analysis. The signal is supplied to the synthesis circuit 12.

As a result, the audio signal output from the transmitter 4b is analyzed by the audio analysis/synthesis circuit 12 using the 8 KHz sampling clock signal, converted into audio data, and stored in the audio data storage circuit 7. Subsequently, when the recording switch 8 is turned off, the control circuit 9 turns off the light emitting diode IO, and the clock signal switching circuit 11 is switched to 6K, so that a 6KHz clock signal is supplied to the audio analysis and synthesis circuit 12. Next, the reputation data stored from the audio data storage circuit 7 is 1'r.
2 is extracted, an audio signal is synthesized at a frequency of 6 kHz, which is lower than that during recording, and this audio signal is sent to the communication circuit 3 through the terminal 13b of the changeover switch 13. The audio data storage circuit 7 is cleared when the audio data is read out.

With the above operation, the audio signal analyzed using the gKHz clock signal is reproduced and transmitted using the 6KHz clock signal, so that the voice quality changes, and for example, a female voice becomes a male-like voice.

In addition, in this example, the frequency of the clock signal is 8KH2 and 6KH2.
Hz, but it is not limited to this.

[Effects of the Invention] According to the present invention, it is possible to change the quality of one's voice, for example, change a female voice to sound like a male voice and transmit it.
This is more effective in preventing prank calls than responding with a female voice, and is especially convenient for women who live alone.

[Brief explanation of the drawing]

The drawing is a diagram showing an embodiment of the present invention. 7...Audio data storage circuit 8... Recording switch 11...Clock signal switching circuit 12...Speech analysis and synthesis circuit 13... Selector switch that's all

Claims (1)

[Claims] An audio data storage circuit for storing audio data, a recording switch for recording an audio signal from a transmitter of a handset, and a first clock signal for recording by operation of the recording switch. a clock signal switching circuit that outputs a second clock signal for reproduction according to a reproduction command; and a clock signal switching circuit that outputs a second clock signal for reproduction according to a reproduction command; a voice analysis and synthesis circuit that analyzes and stores voice signals in the voice data storage circuit, and performs voice synthesis based on the voice data from the voice data storage circuit using a second clock signal; 1. A telephone set comprising a changeover switch that selectively switches and outputs an audio signal output from a talking section and an audio signal output from the audio analysis/synthesis circuit.