JPH06335100A - Audio equipment - Google Patents

Abstract

PURPOSE:To easily set data at a listening position by transferring the setting data of the listening position from a remote controller through a main body device to an acoustic correcting means. CONSTITUTION: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 CPU 21 at a center unit 10 decodes a signal from a photodetection part 15 and decodes the command in the optical signal and when the command is the setting of acoustic correction, the setting data are transferred to an acoustic correcting means DSP 20. When the setting data transferred to the DSP 20 are position data for adjusting the listening position of an audio signal and a position key is pressed continuously longer than prescribed time without setting a position mode, the position mode is transferred.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio device of a multi-way system having a plurality of speakers and an acoustic correcting means such as a DSP (digital sound processor) for acoustically correcting an audio signal.

[0002]

2. Description of the Related Art Conventionally, in an audio device of a multi-way system provided with a plurality of speakers as described above,
The frequency band of the audio signal is divided and the divided audio signal is supplied to the corresponding speaker. In particular, some recent audio devices for vehicle-mounted multi-way systems have a configuration in which as many as 14 speakers are connected.

Therefore, in the vehicle-mounted audio device having such a configuration, network correction and parametric
For equalizer (P.EQ) correction, DSP data is set for each speaker to perform optimum acoustic correction for the passenger compartment of the vehicle.

[0004]

However, in the above-described conventional audio apparatus, it is difficult to select each speaker, that is, each listening position, only by operating the main body apparatus. Therefore, by connecting each speaker one by one, acoustic correction is performed. However, there is a problem that the adjustment work becomes very complicated.

The present invention solves such a conventional problem, and the complexity of setting the acoustic correction is eliminated, and the data at the listening position can be easily set.
It is an object to provide an excellent audio device.

[0006]

In order to achieve the above object, the present invention provides a remote control device that emits an optical signal in response to a predetermined operation command, and a main body device that is provided for acoustic correction included in the optical signal. And a control means for transferring the setting data of the listening position to the acoustic correction means.

[0007]

Therefore, according to the present invention, by transferring the setting data of the listening position from the remote control device to the acoustic correction means via the main body device, the complexity of the acoustic correction setting can be eliminated and the listening position can be easily set. Data can be set.

[0008]

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

FIG. 1 shows an audio device of the 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.

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 acoustic correction setting data, the setting data is transferred to the DSP 20.

Next, data setting for position adjustment executed by the CPU 12 will be described. Figure 2 is CP
U12 main routine flowchart, FIGS. 3 and 4 show key processing 1 and key processing 2 in the main routine.
FIG. 5 to FIG. 9 are a flow chart of FIG. 5 to FIG. 9 showing a mode (MODE), scroll (SCROLL),
P. It is a flow chart of key processing of EQ, a parameter (PARAM), and up-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 position data for adjusting the listening position of the audio signal will be described.

In FIG. 3, when the position key is continuously pressed for a predetermined time T1 or more (step S20).
1) It is determined whether or not the position mode is in progress (step S202). If the position mode is not in progress, the mode is shifted to the position mode (step S203). If the position mode is in progress, the position mode is ended (step S203). S204). That is, when the position key is pressed for a predetermined time or longer, it serves as a toggle switch for switching modes.

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

In FIG. 4, when the mode (MODE) key of the operation unit of the remote controller 50 is pressed (step S301), MODE processing is performed (step S302).
When the scroll (SCROLL) key is pressed (step S303), SCROLL processing is performed (step S304), and the parametric equalizer (P.
When EQ) is pressed (step S305), P.
EQD processing is performed (step S306), and when the parameter (PARAM) key is pressed (step S306).
307), and PARAM processing is performed (step S30
8) If the "+/-" key is pressed (step S309), UP / DOWN processing is performed (step S3).
10). Each of these processes will be described later.

FIG. 5 shows network correction or P.P. It is a flowchart of operation | movement at the time of performing EQ correction. That is, when the MODE key is pressed, it is determined whether or not the position mode is in progress (step S401). E
It is determined whether Q correction is in progress (step S402). M
The ODE key is used for network correction and P. It is a toggle switch that switches EQ correction, and the current state is P. E
If the Q correction is being performed, the process proceeds to the network correction state setting (step S403), and the current state is P.S. If the EQ correction is not being performed (network correction is being performed), the P. E
The process shifts to the Q correction state setting (step S404).

In the case of setting the state of network correction,
Serial communication is performed between the center unit 10 and the DSP 20, the network data registered in the memory of the DSP 20 is read (step S405), and stored in the memory of the center unit 10. On the other hand, P. EQ
Similarly, in the case of the correction state setting, serial communication is performed between the center unit 10 and the DSP 20,
20 registered in the memory. Read the EQ data.

The data structure in this embodiment is as follows:
The frequency band of the audio signal is divided into 6 BANDs from BAND1 to BAND6, and data for each BAND is registered. That is, BAND1 to BAND6
Data is read and stored in the memory of the center unit 10 (steps S406 to S411).

In this case, BAND1 to BA
20H for the data of center frequency F0 of ND3
z, 25Hz, 31.5Hz, 40Hz, 50Hz, 6
3Hz, 80Hz, 100Hz, 125HzHz, 16
0Hz, 200Hz, 250Hz, 315Hz, 400
Hz and 500 Hz can be set.

The data of the center frequency F0 of BAND4 to BAND6 is 630 Hz, 800H.
z, 1 kHz, 1.25 kHz, 1.6 kHz, 2 kHz
z, 2.5kHz, 3.15kHz, 4kHzHz, 5
kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.
5 kHz and 16 kHz can be set.

FIG. 6 is an operation flowchart in the case of the SCROLL key processing. When the SCROLL key is pressed, it is determined whether or not the position mode is in effect (step S501). It is determined whether or not EQ correction is in progress (step S50).
2). P. If EQ correction is in progress, select the speaker and select FRONT L, FRONT R, REAR.
One of L and REAR is selected (step S50).
3). Further, as in the case of FIG. 5, the data of BAND1 to BAND3 is read from the DSP 20 and stored (step S504), and the data of BAND4 to BAND6 is read and stored (step S505). Each B
The data of the center frequency F0 of AND is the same as that in the case of FIG.

In step S502, the P. If the EQ correction is not in progress, the P.I. The EQ correction setting state is set (step S506). In the case of this embodiment, the low range (LO
W), mid range (MID), high range (HIGH) FRONT
Side and REAR side, and SUB-WOOFE
The ultra-low range for R is selected (step S506).

FIG. It is an operation | movement flowchart which performs the process of EQ. P. When the EQ BAND key is pressed, it is determined whether or not the position mode is in progress (step S
601), if in the position mode, the P. E
It is determined whether the Q correction is being performed (step S602), and the P.I.
If EQ correction is in progress, select either BAND1 to BAN6. Perform EQ processing (step S60)
3).

FIG. 8 is an operation flowchart for selecting an item of data to be set, that is, a parameter. PARA
When the M key is pressed, it is determined whether or not the position mode is in progress (step S701). It is determined whether the EQ correction is being performed (step S702), and the P.I. If the EQ correction is in progress, EQ processing is performed (step S703). That is, the central frequency F0, the filter Q (quality factor) and the GAIN (gain) in each BAND are selected and read according to the pressing of the PARAM key (step S704). Step S70
2, P. If EQ correction is not in progress, network correction is performed (step S705). That is, PAR
GAIN and TIME (delay time) of the L and R channels are selected and read according to the depression of the AM key (step S706).

FIG. 9 is a flowchart of the operation when the position data is actually set. In this case, the user looks at the numerical value displayed on the display unit 14 of the center unit 10 and presses the "+" key or "-" key of the remote controller 50 to set the data, but in FIG.
This is shown by pressing the "+" key. The case of pressing the "-" key is the same as the case of pressing the "+" key, except that the set value becomes smaller, and therefore the description thereof will be omitted.

In FIG. 9, when the "+" key is pressed, it is judged whether or not the position mode is in progress (step S80).
1), if in position mode It is determined whether or not EQ correction is in progress (step S802). P. If EQ correction is not in progress, data setting for network correction is performed (step S803). In this case, L channel and R
You can set the GAIN and TIME of the channel. GA
IN can be set from 0 dB to 20 dB in 2 dB steps, and can also be fixed to −∞ (0 dB). TIME can be set from 0 ms to 12 ms in 0.1 ms steps, and can also be fixedly set to 0 ms.

In step S802, the P. If the EQ is being corrected, it is determined whether or not the Q is set (step S8).
04), if Q is set, that setting is made (step S
805). The values of Q that can be set are 0.5, 1, 3, 5,
7 Further, it is determined whether or not the GAIN is set (step S806), and if the GAIN is set, the setting is performed (step S807). GAIN can be set from -12 dB to +12 dB in 1 dB steps, and
Alternatively, it can be fixed to −∞ (0 dB).

Next, it is judged whether or not the current F0 is the maximum value (step S808), and if it is the maximum value, the process ends.
If it is not the maximum value, the current value of F0 is stepped up (step S809). Then, it is determined whether or not the F0 of the BAND currently displayed matches the F0 of another BAND. That is, it is determined whether or not the current (displayed) BAND is BAND1 (step S810), and if it is BAND1, its F0 is BAND2.
And F0 of 3 and 3 and if they match, step up (step S811). Similarly, currently B
It is determined whether it is AND2 (step S812), BA
If it is ND1, the F0 is compared with the F0s of BAND1 and 3, and if they match, step up (step S813). If it is neither BAND1 nor BAND2 at present, the F0 of BAND3 is set to BAND1 and 2 If it matches, the step is stepped up (step S814).

When the data setting is completed, the respective data are transferred to the DSP 20 (step S815),
Register in the memory of the DSP 20.

As described above, since the setting data for position adjustment can be input from the remote controller 50, the data setting can be facilitated.

[0037]

As is apparent from the above embodiments, the present invention is provided in the remote control device for emitting an optical signal in response to a predetermined operation command and the main body device, and listening for acoustic correction included in the optical signal. By including the control means for transferring the position setting data to the acoustic correction means,
In addition to normal operations such as sound source selection and volume setting, acoustic correction setting data can also be operated with the remote control, so the complexity of acoustic correction settings can be eliminated and data at the listening position can be set easily. It will be 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: Network correction or P.P. It is a flowchart of operation | movement at the time of performing EQ correction.

FIG. 6 is a flowchart of an operation in the case of the SCROLL key processing.

7: P. It is an operation | movement flowchart which performs the process of EQ.

FIG. 8 is an operation flowchart for selecting a parameter.

FIG. 9 is a flowchart of an operation when setting position data.

[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 (2)

[Claims] 1. A main body device for selecting an arbitrary audio signal from a plurality of systems of sound sources, an acoustic correction means for performing acoustic correction on an audio signal supplied from the main body device, and a plurality of devices for emitting a sound in response to the audio signal. A remote control device that emits an optical signal according to a predetermined operation command, and a listening position setting related to the acoustic correction included in the optical signal, which is provided in the main body device. An audio device, comprising: a control unit that transfers data to the acoustic correction unit. 2. The main body device includes 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.