JPH05336488A - Video and voice modifying device for video camera and video editing device - Google Patents

Abstract

PURPOSE:To record and edit a more interesting video by synchronizing and modifying the video and audio producing the special effect on the videotaped image plane or the like for commemoration with simple operation in the video camera and video editing device. CONSTITUTION:When a photograph mode or the like is specified from an operation section 30, the modified information is selectively read out from a video pattern generator 31 and an audio IC 32 storing the modified video and audio information corresponding to each mode. The modified video information is synthesized into or replaced by the video signal during picking up the image by a video signal synthesizing circuit 24. An audio signal synthesizing circuit 29 synthesizes or replaces the audio from a microphone 26 with the modified audio information. In this case, as a system control section 33 reads out the modified audio information in synchronism with the reading of the modified video information, the modified audio is effectively recorded corresponding to the movement of the modified video.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video and audio modification device in a video camera and a video editing device, and synchronizes the modification video and audio for producing a special effect on the video and audio being captured or edited. The present invention relates to a device for synthesizing or replacing while performing.

[0002]

2. Description of the Related Art With the recent widespread popularization of video cameras and VTRs, various functions have been added to these devices according to the user's request and the creativity of the manufacturer. Models have also been developed that allow ordinary users to process video and audio using the functions. For example,
Video cameras have been implemented that enable digital video signal processing to capture images in strobe / still mode and voice synthesis processing to insert BGM.

By the way, home video cameras are often used for recording memorable epochs and active scenes of family members and acquaintances, and not only actual images and sounds on the spot are recorded as they are. By allowing the video and audio suitable for the scene to be modified, the recorded video can be seen more interesting later.

In response to such a demand, image information and audio information for special effects are stored in an IC card, and the IC card is inserted into a video camera at the time of image pickup to collect the image and sound collected during image pickup. A video camera capable of synthesizing a synthesized voice is also implemented. Specifically, there are multiple image IC cards that store various characters and illustration images in advance, and multiple music ICs that store BGM, etc., and select the card that is appropriate for the shooting scene. It is inserted into the slot of the video camera, and an instruction is given from the video camera to synthesize the video information read from the image IC card with the video being captured and the audio information of the music IC card is recorded.

[0005]

By the way, in the above-mentioned modification method using the IC card, even if the image and the sound for the special effect correspond to the picked-up image, the image information for the special effect is not recorded. Since the audio information is recorded in an asynchronous state, it is impossible to record the modified video and audio in a time-series manner. In other words, it is impossible to insert the sound for modification corresponding to the movement of the video to be modified, and it is not possible to effectively produce the special effect.

Further, since the modification information for the special effect is stored in the IC card, it takes time and effort to insert the IC card into the video camera one by one, and the special effect is obtained when a real-time image is recorded at the shooting site. It is not uncommon to miss the optimal timing for inserting the video and audio for the game.

Therefore, according to the present invention, the video information and the audio information for modification which produce a special effect are stored in advance inside the video camera or the video editing apparatus, and the video information and the audio information are recorded in synchronization. The purpose of this invention is to provide a device capable of inserting the modification information, thereby allowing the modification information to be inserted more effectively than that of the modification method using the IC card, and facilitating the operation therefor, thereby eliminating the above disadvantages. Was created as.

[0008]

A basic configuration of the first invention is shown in FIG. 1, and in a video camera, an instruction means 1 for selecting decoration information and instructing recording thereof, and a plurality of decoration image information are displayed. The stored video storage unit 2, the audio generation unit 3 for generating the modified audio information corresponding to each modified video information of the video storage unit 2, and the video selected as the selection target based on the instruction from the instruction unit 1. Read-out means 4 for reading the modified video information of the storage section 2, and audio output for outputting the modified audio information of the audio generation section 3 corresponding to the selected video information in synchronization with the read timing of the read-out means 4. Control means 5,
Video composition means 6 for synthesizing or substituting the modified video information read by the reading means 4 with the picked-up video information, and qualifying audio information output by the audio generating section 3 for synthesizing or replacing the audio information of the sound collecting section 7. The video in the video camera, which is characterized in that the video information constituted by the video structuring unit 6 and the voice information constituted by the audio structuring unit 8 are recorded in the recording medium 10 by the recording unit 9. And related to the voice modifier.

A second aspect of the present invention is to provide the instruction means 1, the video storage section 2, the audio generation section 3, the reading means 4, the audio output control means 5, the video composing means 6, and the audio composing means 8. The configuration of and is applied to a video editing device.
In the present invention, the video information of the image pickup section 11 and the audio information of the sound collection section 7 are targets of synthesis or replacement, whereas in the present invention, the video read by the reading sections 13 and 14 from the recording medium 12 recorded in advance. Information and voice information are subject to synthesis or replacement.

[0010]

In the first and second inventions, the objects of composition or replacement are different, and the function of modifying video and audio is the same. In the present invention, a plurality of modified video information is stored in the video storage unit 2 in advance, and the audio generation unit 3 is adapted to generate modified audio information corresponding to each of the modified video information. Video information and audio information to be modified with respect to the video and audio being edited or edited are selected and instructed from the instruction means 1. Based on the selection instruction, the reading means 4 and the audio output control means 5 respectively cause the video storage section 2 and the audio generation section to operate.
3 is accessed and the selected modified video information is read and the modified audio information corresponding to the selected modified video information is generated.In the reading / generating operation, the audio output control means 5 synchronizes with the reading operation of the reading means 4. While executing the generation of the modified voice information. Then, the video composing means 6 and the audio composing means 8 synthesize or replace the above-mentioned modified video information and modified audio information with the video information and audio information being imaged or edited.

Various methods are conceivable as the synchronizing means in the reading / generating process of the modified video information and the modified audio information. At least, the audio output control means 5 corresponds to the read information of the reading means 4 and outputs the audio. The method of setting the generation target information of the generation unit 3 and its generation timing, and the functions of the audio generation unit 3 and the audio output control unit 5 are configured by the storage unit and the reading unit similarly to the image decoration side, and the reading of the image decoration side is performed. A method is included in which the voice output control means 5 reads the modified voice information from the voice generation unit 3 by sequential access or selective access corresponding to the reading process of the means 4. In this method, an oscillator or the like that generates a special sound signal can be used as the voice generation unit 3, and in the method, various types of modified voice information can be prepared using a voice IC or the like. Become.

Therefore, the operator of the video camera or the video editing apparatus simply selects and instructs the modification information of the image from the instructing means 1 by the button operation or the like to synthesize or replace the image and the sound to be modified with the image and the sound being captured. In particular, even when the modified video information is configured as a moving image, it is possible to record effective audio information corresponding to the movement in time series. Furthermore, indicating means 1
If there is a function to fix the video information being captured or edited by the video information processing unit 15 in the still mode or the flash mode according to the selection content of the modified video information when there is an instruction input from Effective modification is possible. In the video editing apparatus, the instruction means 1 gives an instruction while watching the image on the editing monitor 16.

[0013]

Embodiments of the present invention will be described in detail below with reference to FIGS. FIG. 2 is a signal system block circuit diagram of the video camera according to the embodiment. In the figure, the video signal system includes an S / H / color separation circuit 22 and a S / H / color separation circuit 22 that sample-hold the video signal during imaging obtained from the solid-state imaging device 21 to perform color separation processing and the like. The video signal processing circuit 23 for forming a frame using the field memory 23a while performing modulation processing, frequency conversion processing, and the like on the signal created by, and the processed captured video signal and the modified video signal described later. Video signal synthesizing circuit 24 for synthesizing and magnetic head
Video signal recording circuit 25 for outputting recording video signal to 25a
The audio signal system consists of a microphone
An automatic gain control circuit (AGC circuit) 27 that adjusts the level of the audio signal during imaging obtained from 26, an audio signal synthesis circuit 28 that synthesizes a modified audio signal described below, and a recording audio signal that is output to the magnetic head 29a. And an audio signal recording circuit 29 for controlling the audio signal.

The video camera of this embodiment has an operating section 30.
In addition to the trigger button, a mode selection button (photo mode / movie mode / title mode, etc.) is provided, and the modified video information (Pv, M
v, Tv ...) are selectively generated, and a video pattern generator (hereinafter referred to as “video PG”) 31 and a voice IC 32 that generates modified voice information (Pa, Ma, Ta ...) corresponding to each mode are built-in. The feature is that the video signal processing circuit 23 fixes the screen in the still mode or the flash mode by turning on the mode selection button. Then, various control signals associated with the button operation of the operation unit 30 are output by the system control circuit 33. Since the video PG31 and the audio IC 32 store the modification information as digital information, their output is
It is converted into an analog signal by the D / A converters 34 and 35.

On the other hand, FIG. 3 shows a block circuit diagram in the case where the same signal system configuration as that of the above video camera is applied to a video editing apparatus. In the figure, those denoted by the same reference numerals as those shown in FIG. 2 correspond to the same circuit elements. In this case, since they are video editing devices, the recording medium 41 in which video and audio have been recorded in advance. The only difference is that the video signals and audio signals read by the magnetic heads 42 and 43 are subject to modification, and the outputs of the video signal synthesis circuit 24 and the audio signal synthesis circuit 28 are output to the editing monitor 44. And the functions performed by the other circuit elements are similar to those of the video camera described above.

Next, the procedure for modifying the video and audio when the photo mode is set in the video camera shown in FIG. 2 will be described with reference to the time-sequential screen change of FIG. 4 and the flowchart of FIG. .. The following procedure is the same for the video editing apparatus shown in FIG. First, the operation unit 30 in advance
The REC mode is set from, and in the state where the image as shown in Fig. 4 (1) is taken in the normal movie mode,
When the photo mode button of the operation unit 30 is turned on, a still mode setting signal is output from the system control circuit 33 to the video signal processing circuit 23, and the video signal processing circuit 23 fixes the video signal input at that time, A frame in the still mode shown in FIG. 4 (2) is constructed (S1, S2).

Then, the system control unit 33 also outputs a picture mode signal to the picture PG31 to start reading the modified picture information Pv corresponding to the picture mode, and the information Pv read from the picture PG31 is a D / A converter. After being converted into an analog signal in 34, it is output to the video signal synthesis circuit 24 (S3v). The video signal synthesizing circuit 24 synthesizes the signal read out and the still image signal of the video signal processing circuit 23. When the image by the synthetic signal is made to correspond to FIG. 4, (3) to () of FIG. The image changes in time series as shown in 6) (S4v). That is, by combining the modified video information Pv that is sequentially read with respect to the frame that is the still image, the shutter film closes from the upper and lower edges of the still image, and after completely closing, reversely, The shutter film opens, and the white frame edge appears immediately when the shutter film is completely opened.

On the other hand, the system control circuit 33 sets a delay timer at the start of reading the modified video information Pv (S3
a) Immediately before the shutter film is closed, an active signal is output to the audio IC 31 to display the modified audio information Pa corresponding to the photo mode.
To start reading (S4a). In this embodiment, a camera shutter sound “Kasha” is prepared as the modified audio information Pa corresponding to the photo mode. Therefore, at the timing when the shutter film is completely closed in the time-sequential image change process, a signal corresponding to a "click" sound is synthesized by the voice signal synthesis circuit 28 with the voice signal from the microphone 26. As a result, the shutter sound of the modified audio information Pa can be inserted in synchronization with the change of the shutter film due to the modified video information Pv, and the special effect can be produced more effectively. Then, the combined signal of the still image signal and the modified video signal Pv is output to the video signal recording circuit 25, and the combined signal of the audio signal from the microphone 26 and the modified audio signal Pa is output to the audio signal recording circuit 29 and is output to the magnetic tape 36. To be recorded.

By the way, in the processing of the audio signal, the audio signal (main signal) being picked up and the audio signal relating to the modified audio information Pa
Although the (sub-signal) is synthesized, it may be more effective to reduce the audio output of the main signal or output only the sub-signal when the sub-signal is input. This effect can be realized by setting the circuit parts of the AGC circuit 27 and the audio signal synthesis circuit 28 as shown in FIGS. In the circuit of FIG. 6, in the same way as shown in FIGS. 2 and 3, the sub signal A is set so as not to affect the operation of the AGC circuit 27.
An audio signal synthesis circuit 28 is provided after the GC circuit 27,
In this case, a signal detection circuit 50 that detects the input of the sub signal is provided, and its output is detected by the diode 51 and the AG
It is output to the time constant circuit of C circuit 27. Here, the time constant circuit has a function of controlling the operation recovery timing of the AGC circuit 27 with the time constant set by the resistor R3 and the capacitor C. Therefore, when the sub signal is input, the gain of the amplifier 27a is suppressed small, and the sub signal is synthesized by the audio signal synthesis circuit 28 in a state where the main signal is extremely small, and thereafter the main signal gradually increases. Can be realized. On the other hand, the circuit of FIG. 7 has a circuit configuration in which the AGC circuit 27 is provided after the audio signal synthesizing circuit 28. In this case, the audio signal is adjusted so that the signal level of the sub signal becomes higher than the signal level of the main signal. The values of the resistors R1 and R2 of the signal synthesis circuit 28 are set in advance, and the operation level of the amplifier 27a of the AGC circuit 27 is set lower than the signal level of the sub signal. Therefore, when only the signal of the main signal is input, the AGC circuit 27 adjusts the signal to an appropriate level and outputs it, but when the sub-signal is input, the gain of the amplifier 27a is suppressed to a small level, and it is momentary. After only the sub-signal is output to the AGC circuit 27
The main signal gradually recovers with the time constant of.

Returning to FIG. 5, when the trigger button of the operation unit 30 is turned ON after the white frame edge which is the modified video information is combined with the still image, the system control circuit 33 causes the video camera to REC.
When switching to PAUSE mode and turning on the photo mode button, the still mode of the video signal processing circuit 23 is released, the composite state of the white frame edge of the modified video information is released, and the original video state is restored to exit the photo mode ( S5-S7).

Although an example of the photo mode has been described in the above embodiment, various other types of modification information may be considered, and a white smoke screen image and a "bop" sound may be produced when an old flash is cooked during photography. It is also possible to prepare modification information for synthesizing in synchronization.

When the movie mode or the title mode is instructed from the operation unit 30, the modified video information of the video PG31 is displayed.
Mv and Tv and modified voice information Ma and Ta of voice IC32 are read,
It will be combined with the still image or voice being captured. In this case, in the movie mode, for example, a modified image to which the clapperboard used in movie shooting is combined is synthesized.
At the operation stage of the clapperboard, the sound "click" is synthesized, and then the video signal processing circuit 23 changes the video being captured into a frame-by-frame video in flash mode and inserts a "click" sound for each frame. Modifications such as
In the case of the title mode, for example, a modification is conceivable in which a title image is combined as a modified image and BGM-like music is combined at the same time. Furthermore, if a short electronic sound is inserted at the time of setting each mode, it is possible to cue the screen by detecting the electronic sound at the reproducing stage after recording.

Although the procedure for modifying the video and audio in the REC mode has been described in this embodiment, the above procedure can be executed from the REC PAUSE mode or the rehearsal mode. In that case, step S3v in FIG. , The start of the operation after S3a is instructed by the trigger button.

[0024]

The video and audio modification device in the video camera and the video editing device according to the present invention has the above-mentioned configuration, and thus has the following effects. Claim 1
In the invention, the plurality of modified video information and modified audio information that produce a special effect are stored in advance inside the video camera, each modification information is selectively read, and both modification information are recorded synchronously, It makes it possible to more effectively produce and record videos of memorial scenes, etc., and make the recorded videos more interesting at the playback stage. Further, the modification operation of the image and the sound can be easily executed only by the selection operation of the mode button, and the modification image and the sound can be inserted into the image being imaged at the optimum timing. According to the invention of claim 2, by applying the constituent elements for modifying the video and audio in the invention of claim 1 to the video editing apparatus, the same function is added to the video editing apparatus to simplify the editing work. To be realized.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic configuration of a video and audio modification device in a video camera and a video editing device according to the present invention.

FIG. 2 is a signal system block circuit diagram of the video camera according to the embodiment.

FIG. 3 is a signal system block circuit diagram of the video editing apparatus in the embodiment.

FIG. 4 is a diagram showing a time series change of a screen when a photograph mode is set.

FIG. 5 is a flowchart showing a procedure of modifying video and audio when a photo mode is set in the REC mode.

FIG. 6 is an electric circuit diagram of parts of an audio signal synthesis circuit and an AGC circuit.

FIG. 7 is an electric circuit diagram of parts of an audio signal synthesis circuit and an AGC circuit.

[Explanation of symbols]

1 ... instructing means, 2 ... video storage section, 3 ... audio generating section, 4 ... reading means, 5 ... audio output control means, 6 ... video forming means, 7 ...
Sound collection unit, 8 ... Audio configuration unit, 9 ... Recording unit, 10, 12 ... Recording medium, 11 ... Imaging unit, 13, 14 ... Reading unit, 15 ... Image information processing unit, 16, 44 ... Editing monitor, 21 … Solid-state image sensor, 22… S / H
Circuit / color separation circuit, 23 ... Video signal processing circuit, 23a ... Field memory, 24 ... Video signal synthesizing circuit, 25 ... Video signal recording circuit, 25a, 29a, 42, 43 ... Magnetic head, 26 ... Microphone, 27 ... AGC Circuit, 28 ... Audio signal synthesis circuit, 29 ... Audio signal recording circuit, 30 ... Operation unit, 31 ... Video pattern generator, 32 ... Audio IC, 33 ... System control circuit, 34, 35 ... D / A converter, 36, 41 ... Magnetic tape.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Akira Nakamura Akira Nakamura 3-12 Moriya-cho, Kanagawa-ku, Yokohama, Kanagawa Japan Victor Company of Japan, Ltd. (72) Hirokazu Koike 3-chome, Moriya-cho, Kanagawa-ku, Yokohama Address 12 Victor Company of Japan, Ltd.

Claims (2)

[Claims] 1. A video camera, instructing means for selecting decoration information and instructing recording thereof, a video storage section storing a plurality of pieces of modified video information, and a modification corresponding to each modified video information in the video storage section. A voice generation unit that generates voice information, a read unit that reads the modified video information of the video storage unit that has been selected based on an instruction from the instruction unit, and a selection that is synchronized with the read timing of the read unit. Audio output control means for outputting the modified audio information of the audio generation unit corresponding to the targeted modified video information, and video composition means for synthesizing or replacing the modified video information read by the reading means with the captured video information. And audio information that synthesizes or replaces the modified audio information output by the audio generation unit with the audio information of the sound collection unit, and the video information that the video composition unit configures by the recording unit, A device for modifying video and audio in a video camera, characterized in that the audio information constructed by the audio constructing means is recorded on a recording medium. 2. A video editing apparatus, comprising: instruction means for selecting decoration information and instructing insertion thereof, a video storage section storing a plurality of pieces of modified video information, and each modified video information in the video storage section. A voice generation section for generating the modified voice information, a reading means for reading the modified video information of the video storage section selected based on an instruction from the instructing means, and a reading timing of the reading means in synchronization with each other. Audio output control means for outputting the modified audio information of the audio generation unit corresponding to the selected modified video information, and video for synthesizing or replacing the modified video information read by the reading means with the video information to be edited. A video editing apparatus comprising: a configuration unit and a voice configuration unit that synthesizes or replaces the modified voice information output by the voice generation unit with the voice information being edited. Video and audio modifier.