JPH0581765A - Audio device - Google Patents

Abstract

PURPOSE:To provide an audio device playing for a user an audio source preferred by the user superimposing on the music of a radio, a tape and a CD, etc., CONSTITUTION:This device is provided with a ROM 5 storing the audio source (e.g. the sound of wave, wind and an airplane, etc.) preferred by the user, an audio source generating circuit 4 controlling the sound volume and the output timing of above-mentioned audio source, a mixing circuit 6 superimposing the audio signals of the radio, the tape and the CD, etc., and above-mentioned audio source and a micro computer 10 controlling the audio source generating circuit 4 and the mixing circuit 6 by an operational signal from a control part 11. Then, the audio source selected by the control part 11 is called out from the ROM 5 and superimposed on the audio signals of the radio, the tape and the CD, etc., by the mixing circuit 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device used for car audio or home audio.

[0002]

2. Description of the Related Art Conventionally, in an audio apparatus of this type, an FM / AM radio receiver, a tape reproducing section, a CD reproducing section, a preamplifier, a power amplifier, an operating section, a power source section, a display section, and a microcomputer for controlling them are provided. It is provided so that the user can listen to the performance by selecting any one of radio, tape and CD.

[0003]

However, in the above-described conventional audio apparatus, only a single performance of a radio, a tape or a CD can be played and listened to, and a sound source according to a user's preference is superimposed. There was a problem that it could not be played.

The present invention solves such a conventional problem, and a user selects a radio source, a tape,
It is an object of the present invention to provide an excellent audio device that can be listened to by being superimposed on music such as a CD.

[0005]

In order to achieve the above object, the present invention has a ROM in which a sound source matched to a user's taste is stored, a sound source generation circuit for controlling the volume and output timing of the sound source, The audio signal and the sound source are superimposed by including a mixing circuit that superimposes the audio signal of a radio, tape, CD or the like and the sound source, and a microcomputer that controls the sound source generating circuit and the mixing circuit by an operation signal from the operation unit. It was done like this.

[0006]

Therefore, according to the present invention, the user can
By selecting a favorite sound source stored in the operation section using the operation unit, the user can enjoy music by superimposing the user's favorite sound source on music such as normal radio, tape, and CD.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In FIG. 1, 1 is FM / AM
This is an FM / AM receiving circuit that generates a broadcast audio signal. 2 is a tape reproducing circuit for reproducing an audio tape. Reference numeral 3 is a CD reproducing circuit for reproducing a CD.
Reference numeral 4 denotes a sound source generation circuit, which generates a sound source (for example, waves, wind, airplane sounds, etc.) stored in the ROM 5. 6
Is a mixing circuit for superimposing an audio signal such as radio, tape, CD and the sound source generated by the sound source generation circuit 4, and its output is supplied to the speaker circuit 9 through the audio amplifier circuit 7 and the power amplifier circuit 8. Reference numeral 10 denotes a microcomputer, which calls a sound source selected by the operation unit 11 from the ROM 5 to control the sound source generation circuit 4 and the mixing circuit 6, and the microcomputer 10 controls a timing generation circuit 12 to generate a sound source. Determine the interval and timing of occurrence.

The operation of the above embodiment constructed as described above will be described with reference to FIGS. 1 and 2. According to the preference of the user, for example, a sound source such as waves, wind, or sound of an airplane is selected by the mixing button on the operation unit 11, and the volume of the selected sound source is determined by the volume mode key on the operation unit 11, Furthermore, DSP
The mode key sets the DSP mode of the sound source to three levels, shallow, medium and deep, depending on the degree of delay. As a result, the microcomputer 10 calls the sound source selected by the operation unit 11 from the ROM 5, and in the sound source generation circuit 4,
The volume of the sound source is determined, and when the DSP mode is shallow, the delay is not applied, and when the DSP mode is deep, the delay is increased.
The sound source generation interval and generation timing are determined by. As a result, the sound source signal is output from the sound source generation circuit 4 to the mixing circuit 6. In the mixing circuit 6, the audio signal of any one of the FM / AM receiving circuit 1, the tape reproducing circuit 2 and the CD reproducing circuit 3 and the sound source signal from the sound source generating circuit 4 are mixed and output.

Next, the control flow of the microcomputer 10 will be described with reference to the flowchart of FIG. When the mixing button is turned on in step 21, a sound source such as waves, winds, airplane sounds, etc. is called from the ROM 5 in step 22. Next, step 23
In 24, read the volume mode and DSP mode,
In step 25, the sound source generation circuit 4 is set. In step 26, the output of the sound source generation circuit 4 is mixed with the mixing circuit 6
Mixing is started by applying to the.

As described above, according to the above embodiment, the sound source selected by the operation unit 11 is called from the ROM 5, and the sound source generation circuit 4 determines the sound volume, the DSP mode, the sound source generation interval, and the generation timing. The mixing circuit 6 allows the user to enjoy music by superimposing a user's favorite sound source on music such as ordinary radio, tape, and CD.

[0011]

As is apparent from the above-described embodiment, the present invention allows the user to select a desired sound source stored in the ROM with the operation unit, so that a normal radio, tape, CD, etc. can be used in the mixing circuit. The above-mentioned music can be mixed with the selected sound source, and the music can be played according to the user's preference. Further, there is an effect that the range of use of the audio device such as creating and enjoying music unique to the user can be expanded.

[Brief description of drawings]

FIG. 1 is a block diagram of an audio device according to an embodiment of the present invention.

FIG. 2 is a flowchart of the same embodiment.

[Explanation of symbols]

 1 FM / AM receiving circuit 2 Tape reproducing circuit 3 CD reproducing circuit 4 Sound source generating circuit 5 ROM 6 Mixing circuit 7 Audio amplifier circuit 8 Power amplifier circuit 9 Speaker circuit 10 Microcomputer 11 Operating unit 12 Timing generating circuit

Claims (1)

[Claims] 1. A ROM in which a sound source according to a user's preference is stored, a sound source generating circuit for controlling the volume and output timing of the sound source, and an audio signal such as a radio, tape, or CD, and the sound source are superimposed. An audio device comprising a mixing circuit and a microcomputer for controlling the sound source generating circuit and the mixing circuit according to an operation signal from an operation section.