JPH06335099A - Audio equipment - Google Patents

Abstract

PURPOSE:To obviate the trouble of setting and to reduce the space of the equipment by operating the setting data of acoustic correction by a remote controller as well along with normal operations such as the selection of a sound source or the setting of sound volume. CONSTITUTION:An acoustic correcting means DSP 20 performs the acoustic correction to an audio signal sent from a center unit 10. An infrared pulse signal emitted from a remote controller 50 is modulated by a command corresponding to the operation of an operation part inside the remote controller 50. A signal from a photodetection part 15 at the unit 10 is decoded by a CPU 12, and a command contained in the optical signal is decoded. When the command from the remote controller 50 is the setting data of acoustic correction including crossover, the CPU 12 transfers the setting data to the DSP 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device provided with an acoustic correction means such as a DSP (Digital Sound Processor) for performing acoustic correction on a voice signal.

[0002]

2. Description of the Related Art In such a conventional audio apparatus, when setting DSP data, for example, crossover setting, between the DSP and the main amplifier,
A crossover unit was set up to set the crossover, and the crossover was set according to the user's preference.

[0003]

However, in the above-mentioned conventional audio apparatus, an operation for setting the crossover must be performed separately from the operation of the main body apparatus,
In addition to being complicated to operate, there is a problem in that it is difficult to store the device in a limited space such as a vehicle-mounted audio device because the crossover unit is separately provided.

The present invention solves such a conventional problem, and an object of the present invention is to provide an excellent audio apparatus capable of eliminating the complexity of setting the acoustic correction and reducing the space of the apparatus. To do.

[0005]

In order to achieve the above object, a remote control device that emits an optical signal in response to a predetermined operation command, and setting data for acoustic correction included in the optical signal that are provided in the main body device are provided. Control means for transferring to the acoustic correction means,
It is characterized by having.

[0006]

Therefore, according to the present invention, since the remote controller can also operate the sound correction setting data in addition to the normal operations such as the sound source selection and the volume setting, the complexity of the setting can be eliminated and the apparatus can be made small. It is possible to save space.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an audio device of the present invention, in particular
It is a block diagram which shows the structure of the Example of the audio equipment for mount. In FIG. 1, reference numeral 10 denotes a center unit, which is a main body device, which selects and sends out audio signals from various predetermined sound sources (none of which are shown). That is, FM and AM broadcast audio signals from the tuner, tape playback audio signals from the cassette deck, CD player and C
From the D-autochanger (CD A / C), the reproduced audio signal of the CD is sent out according to the operation.

Reference numeral 20 denotes a DS as an acoustic correction means for performing acoustic correction on the audio signal sent from the center unit 10.
P. Reference numeral 30 denotes an amplifier unit that amplifies the audio signal acoustically corrected by the DSP 20, and reference numerals 40, 41, ..., 47 denote speakers that receive a plurality of audio signals sent from the amplifier unit and generate a sound. Further, 50 is a remote controller that emits an optical signal to the center unit 10 in accordance with an operation.

In the DSP 20, the speaker selection, the crossover cutoff frequency (Fc), and the slope (SL0P) are performed according to the crossover setting data.
E), the function to set the polarity (PHASE) is provided.

The inside of the center unit 10 has the following structure. That is, reference numeral 11 is an audio signal selection unit that selects an audio signal corresponding to an operation command from audio signals of sound sources of a plurality of systems, and is connected to the DSP 20 by an optical cable A. Reference numeral 12 is a CPU as a control means for controlling the center unit 10 and communicating various control signals with the DSP 20, and a control bus C
-Connected to DSP 20 by BUS. Also, 1
Reference numeral 3 is an operation unit, 14 is a display unit for displaying each data related to the tuner operation, and 15 is a light receiving unit which receives an optical signal from the remote controller 50, converts it into an electric signal, and inputs it to the CPU 12.

The optical signal emitted from the remote controller 50 is an infrared ray of a pulse signal, which is modulated by a command according to the operation of the operation unit (not shown) of the remote controller 50.
The CPU 12 decodes the signal converted into the electric signal by the light receiving unit 15 and decodes the command included in the optical signal. When the command from the remote controller 50 is the setting data of the acoustic correction including the crossover, the setting data is transferred to the DSP 20.

Next, the crossover setting executed by the CPU 12 will be described. 2 is a flowchart of the main routine of the CPU 12, FIGS. 3 and 4 are flowcharts of key processing 1 and key processing 2 in the main routine, and FIGS. 5 to 7 are scrolling (SCROLL), parameter (PARAM), and up in the key processing 2. It is a flowchart of a key process of down (UP / DOWN).

In FIG. 2, a display is displayed on the display unit 14 according to the set mode state. That is, if the current mode is the crossover mode (step S101), the crossover mode is displayed (step S102), and if the position mode is in progress (step S103), the position mode is displayed (step S10).
4) If in DSP mode (step S105) D
The SP mode is displayed (step S106).

If it is in the CD mode (step S
107) The CD mode is displayed (step S108).
In this case, when the CD A / C is connected, the CD A / C mode is displayed in the CD A / C mode.

If none of the above modes is selected, the tuner mode is displayed (step S109).

During the various modes described above, the remote controller 5
If 0 or there is a key input from the operation unit 13 (step S110), it is determined whether the key pressing duration time T is a preset predetermined time T1 or more (step S111). The predetermined time T1 is, for example, 3 seconds, which is longer than the normal key pressing time of 0.5 seconds to 1 second. When the key pressing time T is T1 or more, that is, when it is longer than the normal pressing time,
Key processing 1 is executed (step S112). When the key pressing time T is shorter than T1, that is, in the case of a normal pressing operation, the key processing 2 is executed (step S11).
3).

Next, the DSP 2 is operated by operating the remote controller 50.
A case where the setting data transferred to 0 is crossover data that divides the entire frequency band of the audio signal into a plurality of bands will be described.

In FIG. 3, when the crossover key is continuously pressed for a predetermined time T1 or more (step S
201), it is determined whether or not the crossover mode is in progress (step S202). If the crossover mode is not in progress, the mode is changed to the crossover mode (step S203). If the crossover mode is in progress, the crossover mode is in effect. Ends (step S204).
That is, when the crossover key is pressed for a predetermined time or longer, it functions as a toggle switch for switching modes.

Next, the key processing in the crossover mode will be described.

In FIG. 4, when the scroll (SCROLL) key of the operation unit of the remote controller 50 is pressed (step S301), the SCROLL processing is performed (step S302), and the parameter (PARAM) key is pressed. (Step S303) performs PARAM processing (step S304), and when the "+/-" key is pressed (step S305), UP / DOWN processing is performed (step S306). Each of these processes will be described later.

FIG. 5 is a flowchart of the operation for selecting a speaker in the crossover mode. Speaker selection is crossover scroll counter (X
SCROLLCT). The correspondence between this numerical value and each speaker is shown in Table 1.

[0023]

[Table 1] In FIG. 5, when the SCROLL key is pressed, it is determined whether the crossover mode is in progress (step S40).
1), XSC when in crossover mode
ROLLCT is incremented (+1) (step S402). Next, the value of XSCROLLCT is "7"
Is determined (step S403), and if the numerical value is "7", the numerical value of XSCROLLCT is updated to "0" (step S404). Then XS
The numerical value of CROLLCT is transferred to the DSP 20 (step S405), and the setting data of SCROLL is read (step S406).

FIG. 6 is a flowchart of the operation for setting the parameters in the crossover mode. The parameter setting is determined by the value of the crossover parameter counter (PARAMCT). The correspondence between this numerical value and each parameter is as shown in Table 2.

[0025]

[Table 2] In FIG. 6, when the PARAM key is pressed, it is determined whether the crossover mode is in progress (step S50).
1), if in crossover mode, PAR
Increment (+1) AMCT (step S5)
02). Next, it is determined whether or not the numerical value of PARAMCT is "6" (step S503), and when the numerical value is "6", the numerical value of PARAMAT is updated to "0" (step S504). After that, the numerical value of PARAMAT is transferred to the DSP 20 (step S505) and PARA
The setting data of M is read (step S506).

FIG. 7 shows low range (LOW), middle range (MID),
In the case of a high frequency 3WAY system, the cutoff frequency (Fc), which is the setting data in the crossover mode, the crossover slope characteristic (SLOPE) in each band, and the audio signal polarity (PHASE) data are determined. It is a flowchart to do.

In FIG. 7, when the "+/-" key is pressed, it is determined whether or not the crossover mode is in progress (step S601). If it is the crossover mode, it is determined whether or not it is the PHASE setting (step S602), and if it is the PHASE setting, it is set to "+" or "-" depending on the key press (step S602). S603).

If the SLOPE setting is set (step S604), 12 dB / 0 CT,
Either 24 dB / 0CT or 36 dB / 0CT is set (step S605).

Fc of low-pass HPF (high-pass filter)
In case of setting (step S606), depending on the key press, through, 50 Hz, 70 Hz, 100 Hz, 15
Either 0 Hz or 200 Hz is set (step S607). Fc of low pass LPF (low pass filter)
In case of setting (step S608), depending on the key press, 500 Hz, 700 Hz, 1 kHz, 1.5 kHz
Either z or 2 kHz is set (step S60).
9).

Fc of HPF (high-pass filter) in the middle range
In case of setting (step S610), depending on the key press, 500 Hz, 700 Hz, 1 kHz, 1.5 kHz
Either z or 2 kHz is set (step S61).
1). When the Fc of the low-pass LPF (low-pass filter) is set (step S612), depending on the key press,
5.5kHz, 6.5kHz, 7.5kHz, 8.5k
Either Hz or 9.5 kHz is set (step S613).

If none of the above settings are made, it means that the Fc of the high-frequency HPF (high-pass filter) is set,
Depending on the key press, 5.5 kHz, 6.5 kHz, 7.
Either 5 kHz, 8.5 kHz, or 9.5 kHz is set (step S614). After that, the respective set data are transferred to the DSP 20 (step S61).
5).

As described above, according to this embodiment, the remote controller 5
Since the crossover data can be set by operating 0, the complexity of the setting can be eliminated and the space of the device can be reduced.

Further, by utilizing the display unit 14 for displaying each data such as frequency related to tuner operation,
By displaying the set value of the crossover, it is possible to make an objective and quantitative confirmation of the set data.

FIG. 8 is a flow chart of the display when setting the PHASE of the subwoofer.

In FIG. 8, the setting state of the setting switch of the subwoofer is read and detected (step S70).
1) It is determined whether the setting is stereo or monaural (step S702). In the case of stereo setting, PHASE display of Lch and Rch is performed (step S70).
3) In the case of monaural setting, PHASE display is simply performed (step S704).

Therefore, in the crossover mode, the user can easily confirm the setting state of the subwoofer and can make the setting more reliably.

In the above embodiment, the case of the crossover adjustment mode has been described, but various setting data of the DSP 20, such as position adjustment mode and other sound field settings, can also be operated by the center unit by operating the remote controller 50. It goes without saying that the data can be transferred to the DSP 20 via 10.

[0038]

As is apparent from the above embodiment, the present invention provides the remote control device that emits an optical signal in response to a predetermined operation command and the setting data for the acoustic correction included in the optical signal in the main body device. Control means for transferring to the acoustic correction means,
Since it is possible to operate the sound correction setting data with the remote controller in addition to the normal operations such as sound source selection and sound volume setting, it is possible to eliminate the complexity of the setting and to reduce the device space. Is possible.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an audio device of the present invention.

FIG. 2 is a flowchart of a main routine of CPU 12 in FIG.

FIG. 3 is a flowchart of key processing 1 in the main routine of FIG.

FIG. 4 is a flowchart of key processing 2 in the main routine of FIG.

FIG. 5 is a flowchart of an operation of selecting a speaker in a crossover mode.

FIG. 6 is a flowchart of an operation for setting parameters in the crossover mode.

FIG. 7 is a flowchart for determining setting data in the crossover mode.

FIG. 8 is a flowchart of a display when setting PHASE of the subwoofer.

[Explanation of symbols]

 10 center unit 11 audio signal selection unit 12 CPU (control means) 13 operation unit 14 display unit 15 light receiving unit 20 DSP (acoustic correction unit) 30 amplifier unit 40, 41, 47 50 remote control device

Claims (4)

[Claims] 1. An audio device comprising: a main body device for selecting an arbitrary audio signal from a plurality of sound sources; and an acoustic correction means for performing acoustic correction on the audio signal supplied from the main body device, the audio device comprising a predetermined operation. A remote control device that emits an optical signal in response to a command; and a control unit that is provided in the main body device and that transfers the acoustic correction setting data included in the optical signal to the acoustic correction unit. Audio device. 2. The audio apparatus according to claim 1, wherein the setting data is crossover setting data for dividing the entire frequency band of the audio signal into a plurality of bands. 3. The main body device is provided with a display unit for performing a display related to a tuner operation, and the control unit causes the display unit to display a value of setting data to be transferred to the acoustic correction unit. The audio device according to claim 1. 4. The sound correction means comprises a sound source setting means for setting whether the super low frequency sound signal to be transmitted is stereo or monaural, and the control means determines the setting state of the sound source setting means,
4. The audio apparatus according to claim 3, wherein a polarity display of the audio signal sent from the acoustic correction means is displayed on the display unit according to stereo or monaural based on the determination result.