JPH02254899A - Program identification information display method - Google Patents

Abstract

PURPOSE:To easily recognize the mode (concert hall) of a sound field to be a base by first displaying the identification information of an altered a program when the program altered by means of a user is accessed, and displaying the identification information of the program to be a base after a prescribed time lapses. CONSTITUTION:A DSP(Digital Signal Processor) 5 is constituted of an arithmetic circuit 51, which is composed of, for example, microcomputers and executes various types of arithmetic processings, a coefficient RAM 52, where the level coefficient of an initial reflecting sound and reverberating sound separately from the direct sound is stored, a delay time data RAM 53, where the delay time data of the initial reflecting sound and the reverberating sound separately from the direct sound are stored, a delay external RAM 54, where the processing data for the practical delay processing based on a delay time set by the delay time data RAM 53, and a user program RAM 55, where the data obtained by altering the parameter with the user are stored. Respective types of command signals are supplied from an operating part 9 to the arithmetic circuit 51, and the arithmetic circuit 51 driving-controls a display part 10 so as to display various types of the data.

Description

TECHNICAL FIELD The present invention relates to a program identification information display method, and more particularly, to a display method for displaying identification information of a called program when performing processing based on the program contents of the called program.

Background technology] At a performance venue such as a concert hall, an opera bus, or a live house, the direct sound from the stage and the indirect sound reflected from the walls, floor, ceiling, etc. of the venue are synthesized, creating a beautiful sound unique to that performance venue. A sound field with resonance is created. How to reproduce this beautiful sound in the listening room has long been one of the goals of Hi-Fi research.

In recent years, sound field generation systems have been developed and are being put into practical use that generate the acoustics of a performance venue, that is, various sound fields such as a performance venue, in a listening room. This sound field generation system is configured to create a sound field at a desired performance venue by digitally processing audio signals based on data obtained by analyzing the acoustic spaces of various performance venues. will explain the concept.

When you are playing a musical instrument in a performance venue such as a concert hall, and observe the sound field (consisting of sound waves with different characteristics such as delay time, direction of arrival, and level) on the time axis. It can be seen that sound can be divided into sound that comes directly from the instrument (hereinafter referred to as direct sound) and sound that arrives after being reflected from the walls and floor of the hall (hereinafter referred to as reflected sound). Of these, reflected sound can be roughly classified into the following two types due to their different characteristics.
It is divided into two types: early reflection sound and rear reverberation sound.

The early reflected sound follows the direct sound for approximately 50 to 100 a+s.
It is a reflected sound up to the level ec, the number of reflections is relatively small, and it is related to the clarity of conversations and lyrics, and to the auditory sense, it contributes to spatial impressions such as the sense of spaciousness and depth of the hall. On the other hand, rear reverberation is the sound reflected after the initial reflection,
It is reflected sound that is reflected many times on walls and floors, and each time it is reflected, it is absorbed, the level decreases, and it is diffused and comes from all directions with equal probability.
It has the effect of creating the atmosphere of the hall. Note that too much reverberation may reduce the clarity of conversations and lyrics.

By the way, the data obtained by analyzing the acoustic space of a performance venue has many parameters, some of which include, for example, the initial delay.
Delay), room size (Room 51ze),
Liveness, Reverb Time (
By changing each parameter of Reverb Tlme), it is possible to adjust the configuration of reflected sound and the subjective effects thereof. This adjustable parameter will be explained below. However, even if these parameters are set to the same data from different performance venues,
Since the data for each performance venue has its own unique parameters, the sound fields created will not be the same.

First, the initial delay is a parameter that determines the positional relationship between the sound source and the listener. This parameter changes the time from when the direct sound arrives until the first early reflection sound arrives.If the setting value is decreased, the distance between the sound source and the listener will feel shorter; If you increase the value, the distance between the sound source and the listener will feel farther away.

Room size is a parameter that determines the capacity of a performance venue. As shown in Figure 8, this parameter changes the time interval (ΔTl + ΔT2) between early reflections; decreasing the setting value gives the impression of a narrow venue, while increasing the setting value gives the impression of a wide venue. You can get the feeling of

Liveness is a parameter that determines the reverberation of a performance venue. As shown in Figure 9, this parameter changes the slope of the level of early reflected sounds with respect to time, and if the setting value is small, the sound field becomes dead (early reflected sounds decay quickly). Increasing the value creates a live sound field (initial reflections decay slowly).

Reverb time is a parameter that determines the decay time of rear reverberation. This parameter indicates that the energy after the sound stops is 60. : f3 This is to set the time required for attenuation; decreasing the setting value shortens the reverberation time, and increasing the setting value increases the reverberation time.

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2. Selected for each mode for classifying various performance venues such as CHURCH and stored in memory. Then, when a desired mode is selected for sound field generation, digital calculation processing is performed on the audio signal based on the data of each parameter in that mode, thereby creating the sound field of the desired performance venue in the listening room. It is.

By the way, if the data of each parameter is fixed data for each mode for classifying various performance venues, the sound field created for each mode will always be constant. Therefore, by allowing the user to generate desired data based on fixed data set in advance for each mode and storing it in the user's memory, the user can create the desired data based on the fixed sound field. It is now possible to generate a sound field.

In this way, when generating a sound field based on parameter data generated by the user, it is necessary to display the identification information of the data generated by the user on the display. It is preferable that a display to that effect be made so that the underlying sound field mode (performance venue) can be grasped.

SUMMARY OF THE INVENTION Therefore, the present invention provides a method for displaying program identification information that can also display identification information indicating the mode of the sound field that is the basis when a sound field is generated based on parameter data generated by a user. The purpose is to provide.

A program identification information display method according to the present invention selectively calls a plurality of programs in a first memory, changes the program contents of the called program, and adds identification information of the underlying program to the changed program. When the modified program is added and stored in a second memory, when the modified program is called from the second memory, the identification information of the called modified program is first displayed, and after a predetermined period of time, the identification information of the underlying program is displayed. It is characterized by displaying.

Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a configuration diagram showing an example of a sound field generation system according to the present invention. In this system, a television (TV) set 1 is placed in the front center, and left and right center speakers 2L are placed on both sides of the television (TV) set 1.

2R, and left and right front speakers 3L on both sides.
, 3R are arranged respectively. Furthermore, left and right rear speakers 4L and 4R are arranged on both rear sides. 5
is a DSP (Dlgltal Signal Pr) that digitally performs various processing on audio signals.
The audio signal digitally processed by this DSP 5 is sent to the left and right front speakers 3L, 3R via the main amplifier 6, and then to the left and right center speakers 2L, 2 via the power amplifiers 7 and 8.
R, left and right rear speakers 4L, 4R, respectively.

An example of the circuit configuration of the DSP 5 is shown in FIG. 2, and the DSP 5 includes an arithmetic circuit 51 that is configured by, for example, a microcomputer and performs various arithmetic processing, and a level coefficient of early reflected sound and reverberant sound for direct sound. Actual delay processing is performed based on the coefficient RAM 52 in which is stored, the delay time data RAM 53 in which delay time data of early reflection sound and reverberant sound with respect to direct sound are stored, and the delay time set in the delay time data RAM 53. It is composed of an external delay RAM 54 that stores processing data to be executed, and a user program RAM 55 that stores data obtained by changing parameters by the user. Various command signals are supplied from the operating section 9 to the arithmetic circuit 51, and the arithmetic circuit 51 drives and controls the display section 10 to display various displays.

The input audio signal is digitized by an A/D (analog/digital) converter 11 and supplied to an arithmetic circuit 51. After being digitally processed by the arithmetic circuit 51, it is digitized by a D/A (digital/analog) converter 12. Brimain Amplifier 6 and Power Amplifier 7 that were converted to analog
．． 8.

FIG. 3 shows a front view of the DSP main body. In Figure 3,
A display section 10 is arranged at the center of the front surface of the main body. The specific configuration of the display unit 10 will be described later. Below the display section 10, a plurality of function switching keys 91 and mode switching keys 92, which constitute a part of the operation section 9, are arranged along the longitudinal direction of the display section 10. As the function switching key 91, the equalizer key 918
゜Surround key 91b, user program key 91C
and SFC (Sound Field Creat)
ion) keys 91d are provided, and depending on selection by these keys, the DSP 5 functions as a digital equalizer, a surround processor, a sound field generator using a group of reflected sounds, or a sound field generator using a user program. In addition, the mode switching key 92 is used to command program up/down (+J, r-J).
It consists of keys, and the mode can be selected by sequentially advancing the program by operating these keys.

A power switch 13 and a remote control light receiving section 14 are provided on the front left side of the DSP main body, and a level adjustment knob 15 and a balance adjustment knob 16 for adjusting the input level and input balance, respectively, are provided on the right side of the display section 10. Furthermore, a master volume knob 17 is provided.

FIG. 4 shows an example of the configuration of the display unit 10. This display section 1
0 is a function display section 10a that lights up and displays the selected function, and a character display section 1 that displays the selected mode identification name, program identification name, etc. in characters.
0b, a parameter display section 10c that lights up and displays the selected parameter, and a data display section 10d that displays the data value of the selected parameter.

This DSP 5 can be remotely controlled (remote control). An example of the configuration of the remote control operation section is shown in FIG. This remote control operation section has a function switching section 2 consisting of four function keys corresponding to the previous functions.
1, a mode switching section 22 consisting of 16 mode keys for selecting, for example, 16 modes corresponding to various performance venues, a parameter adjustment section 23 for adjusting parameters of the selected mode, and an equalizer. An equalizer adjustment section 24 for adjusting the equalization applied to the reflected sound of the function and SFC, a surround adjustment section 25 for adjusting the delay time and selecting the center mode during the surround function, and a surround adjustment section 25 for making various volume adjustments. and a volume adjustment section 26. The parameter adjustment section 23 includes a memory key for instructing the user to store a program changed by the user in the user program RAM 55 (see FIG. 2), a parameter select key for selecting a parameter, and a parameter select key for instructing increase/decrease of a numerical value when adjusting a parameter. r+J and r-J keys are provided.

Next, in the sound field generation system having such a configuration, the processing procedure when the user changes the program contents will be explained in the sixth section.
This will be explained according to the flowchart in the figure. Note that this process is executed by a processor that constitutes the arithmetic circuit 51. Further, in this example, a process for changing the program content of the mode of rHALL2J will be described.

In the state where the mode of rHALL2J is selected, the processor determines whether or not there is a key force applied by the parameter select key of the parameter adjustment unit 23 in the remote control operation unit shown in FIG. , change the current parameter to the next parameter (step S2), and perform this change process in step S
In step 3, the process is repeated for each key key force until it is determined that the key force is not available by the time a predetermined period of time has elapsed. As a result, any one of the parameters such as the initial delay, room size, liveness, reverb time, etc. described above will be selected when the manual input of the parameter select key is stopped. After selecting the parameters, wait for the key input using the "+J, r-J keys" of the parameter adjustment unit 23 (step S4).If it is determined in step S1 that there is no key input using the parameter select key, the parameters at that time are As the selected item, the process directly proceeds to step S4.

In step S4, if it is determined that there is key power using the r+J and r-J keys, the data of the selected parameter is changed (step S5), and this change process is carried out in step S.
The process is repeated for each key manpower until it is determined in step 6 that there is no key manpower by the time a predetermined time elapses. After changing the data, press r+J.

It is determined whether or not there is simultaneous key force for the "-" key (step S7), and if there is no simultaneous key force, it is determined whether there is key force for the memory keys of the parameter adjustment section 23 (step S8). If there is no keying power using the memory key, the process returns to step S1 and the above-described process is repeated. If there is key power using the memory key, the identification name of the underlying program, for example rHALL2J, is added to the user program obtained by changing the data (step S9).
, After that, for example, rUsERIJ is stored in the area of the user program RAM 55 specified by the input information of the key "1" of the mode switching unit 22 that is input after pressing the memory key.
The process of changing the program contents is thus completed (step 510). On the other hand, if it is determined in step S7 that the simultaneous keys were manually operated, a reset process is performed to return the program content after the change to the basic program content before the change (step 511), and the series of processes ends.

Next, the processing procedure of the method for displaying program identification information according to the present invention, which is executed when a user program is called from the user program RAM 55 and processing is performed based on the contents of the program, will be explained with reference to the flowchart of FIG. Note that this process is also executed by the processor that constitutes the arithmetic circuit 51. Further, when performing processing based on a user program, it is assumed that the user program function is selected by the user program key of the function switching section 21.

In the state where the function of the user program is selected, the processor determines whether or not there is any manual force on the key of the mode switching unit 22 (step 521), and if there is any manual force on the key, the processor determines the type of the key (step 521). 522), for example, if the key is "1", the corresponding user program RA is executed according to the input information of the key "1".
Step 823) of calling the user program stored in the area M55, and at the same time its identification name rUsE
RIJ is displayed on the character display section 10b (see FIG. 4) in the display section 1o of the DSP main body (step 524).
).

Next, it is determined whether or not an identification flag, which will be described later, is set (step 525), and if it is not set, it is determined whether the predetermined time T1 has elapsed (step 525).
26) Continue displaying rUsERIJ until the predetermined time T1 has elapsed. When the predetermined time T1 has elapsed, the identification name of the underlying program stored together with the user program, that is, rHALLIJ, is replaced with the identification name of the user program rUsERIJ, and the character display section 10b is displayed.
(step 527). Subsequently, a predetermined time T1
In step 328), the display of rHALLIJ is continued until the predetermined time T2 has elapsed. When the predetermined time T2 has elapsed, the identification flag indicating that the identification name of the underlying program has been displayed is set (step 529), and then the process returns to step S24 and the identification name rUsERIJ of the user program is displayed again on the character display section 10b. to be displayed.

After that, since it is determined in step S25 that the identification flag is set, the display of rUsERIJ continues until it is determined in step S30 that this mode has ended. If it is determined in step S30 that this mode has ended, the identification flag is reset (step 531), and the series of processes for displaying the program identification name is completed.

In this way, when calling a user program and performing processing based on the contents of the program, the identification name rUsERIJ of the user program is first displayed, and after the predetermined time T1 has elapsed, the identification name rHALLIJ of the underlying program is displayed.
By displaying , the user can easily understand the underlying sound field mode (performance venue), which cannot be determined from only the user program identification name.

In the above embodiment, the identification name rUsERIJ of the user program is first displayed, the identification name rHALLIJ of the underlying program is displayed after a predetermined time T1 has elapsed, and the identification name rUsERIJ of the user program is displayed again after a predetermined time T2 has elapsed. However, instead of displaying the user program identification name rUsERIJ again, the underlying program identification name rHALLIJ is displayed.
It is also possible to make the display continue until the mode ends.

As described in detail, according to the method for displaying program identification information according to the present invention, when a user calls up a modified program, the identification information of the called modified program is first displayed, and after a predetermined period of time, the basic program is displayed. By displaying the identification information of the program, it is possible to display the identification information that indicates the underlying sound field mode when generating a sound field based on the parameter data generated by the user. This makes it possible to easily grasp the underlying sound field mode (performance venue), which cannot be determined by

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an example of the sound field generation system according to the present invention, Fig. 2 is a block diagram showing an example of the circuit structure of the DSP, Fig. 3 is a front view of the DSP main body, and Fig. 4 is the DSP main body. FIG. 5 is a front view showing an example of the configuration of the remote control operation section, FIG. 6 is a flowchart showing the processing procedure when the user changes the program contents, and FIG. 8 is a flowchart showing the processing procedure of the program identification information display method according to the present invention, FIG. 8 is a characteristic diagram when room size is used as a parameter, and FIG. 9 is a characteristic diagram when liveness is used as a parameter. Explanation of symbols of main parts 5...Digital signal processor (DSP)
)9...Operation section 10...
Display section 21...Function switching section 22...
...Mode switching section 23...Parameter adjustment section Applicant: Pioneer Corporation

Claims (2)

[Claims] (1) A display method for displaying identification information of the called program on a display unit when performing processing based on the program contents of the program called from the memory, which selects a plurality of programs in the first memory. calling the program at once, changing the program contents of the called program, adding identification information of the underlying program to the changed program and storing it in a second memory, and reading the changed program from the second memory. Program identification information characterized in that when called, first the identification information of the called modified program is displayed on the display section, and after a predetermined period of time has elapsed, the identification information of a program that is the basis of the modified program is displayed on the display section. Display method. 2. The method for displaying program identification information according to claim 1, wherein after displaying the identification information of the basic program for a predetermined period of time, the process shifts to displaying the identification information of the changed program again.