DE2706761C3 - Device for playing sound recordings onto the soundtrack of a sound film in accordance with the scene - Google Patents

Description

Patent claims:

1. Device for the scene-appropriate playing of sound recordings on the sound track of a Sound film while the film is stopped in a stop position a little after a scene change, by hand triggered return over the change point to a slightly before the change of scene Start position as well as manually triggered renewed forward run with full copying of the to The sounds belonging to the following scene exactly from the scene change, using a film transport and overlaying process influencing image counter, characterized in that the counter to at least two exact scene change positions, i.e. separated by a scene and thus internally to the respective stop and slightly before that Start positions can be preset.

2. Apparatus according to claim 1, characterized in that s'.e contains a selector switch (12) which, optionally also adjustable while the film is running, after the renewed one from the start position (x \ - 100 in FIG. 7) Forward movement by an adjustable number of images (9, 4, 1) before or after the exact scene change (i.e. at x \ - 9, x \ - 4. X ₁ - 1, x, + 9, χ _} - 1, X ₂ + 17, X ₂ + 30 in Fig. 6) starts the tape recorder (19) and switches on the recording amplifier (47) or vice versa.

3. Device according to one of claims 1 and 2, characterized in that the image counter (26, 27, 39) is connected to a display unit (39) via which is displayed for the respective film section located in the image window.

4. Device according to one of claims 1-3, characterized in that the image counter (26,27, 39) assigned to a servomotor (25) for actuating a central switching and control component (24) is that it, controlled by the image counter (26, 27, 39), in start-up and stop position and also for adjustment mechanical components such as loop formers, film pressure plates or the like, can move.

5. Device according to one of claims 1-4, characterized in that it is a minicomputer (27) contains, which in cooperation with the image counter (26, 27, 39) when determined by this the associated switching points before and after are determined by exact scene change and stores, and which also takes over the delivery of the corresponding sound commands.

6. Apparatus according to claim 5, characterized in that the minicomputer (27) the deletion the marking of the exact scene change point entered last with the associated control panels designed.

summary

Ks becomes a device for scene-oriented Playback of sound recordings on the soundtrack of your sound film Suggested that automatically the desired transition at the beginning and at the end of a specified by entering the change positions beforehand The film scene is created internally and on the stop slightly after the scene and the something before the scene lying start position can be preset.

State of the art

The invention is based on "a device according to the preamble of the main claim. It is already a Sound film device thrown known, in which a counter that counts up and down simultaneously with the Rücklaufbetneb the device is switched on and

_ln after switching of the device turns on the recording device of the apparatus and, optionally, a sound reproducing apparatus in advance according to an image number which is equal to the transported film length at reflux. The audio playback is connected.

, 5 device preferably with a defined number of images before switching on the sound recording device of the device.

With this device, films can be set to music scene by scene, the scenes without gaps or gaps Partial deletion of a scene can be joined together exactly. The respective end of the scene is then Can only be set with the new beginning of the scene. The complete import of a scene into an existing one Recording that is to emerge again after the recorded scene cannot be carried out automatically. The device is also poorly suited for soft scene transitions, such as those for entering, exiting or Crossfade necessary sr.-d. For scene transitions of this kind, the person who sets the music needs special dexterity necessary. He must for possible fade-in and fade-out of the tone at a scene transition Follow the counter reading very carefully and, working with two hands at the same time, the sound off and fade in. Such transitions often succeed

j5 not and the whole process has to be repeated. The setting to music is even more difficult if a dissolve is to be achieved, maybe even still in sync with an existing image cross-fade. The prerequisites for problem-free Editing with the desired transitions will not be improved if you continue to do one known device for automatically searching for a desired location on a roll film. With it it is at most achieved that before the actual

.ti setting the scene transitions that the device can then automatically visits. What is necessary must then begin here Scoring work with the aforementioned sound film device has been described.

Advantages of the invention

The device according to the invention with the characterizing features of the main claim hai on the other hand, the advantage that scene transitions of various types can be preselected and then recorded automatically. There is the freedom to do the recording before each new scene / u interrupt or also, with the use of two playback devices used alternately, the entire To set film to music in uninterrupted sequence for s / s.

drawing

An embodiment of the invention is shown in the drawing, on which the device and their intended use are also explained in more detail in the following description. It shows

Fig. I a sound film projector forming the device according to the invention, a tape recorder, a Record player and microphone in perspective, connected by cables,

2 shows a block diagram with a minicomputer as central switching unit,

3 shows a programming diagram for the inventive Contraption,

4 and 5 a scheme for the program sequence according to the programming scheme and | ₀

Fig. 6 to 8 flow charts for three different Scene transition types, Fig. 6 for superimposing, Fig. 7 for hard fading in and out and Fig. 8 for soft fading in and out.

Description of the invention ' ³

A sound film projector 1 with a lens 2 and film reels 3 and 4 is used as a playback device for a film 5. The sound film projector 1 has a control panel 6, which is divided into a mixer 7 for the, ₀ manual operation of the recording and playback amplifier of the Tonfürnprojcktors! and a command desk 8 with a number of function keys. Above the command desk 8, a viewing window 9 for a ₂ j level display, a viewing window 10 for the display device of an image counter, a zero key 11 for the image counter of the sound film projector 1 and a selector switch 12 are provided on a vertical wall of the film projector 1. On the front vertical narrow surface of the control panel 6 there are three connection sockets 13 to 15 for two transfer cables 16 and 17 and a microphone cable 18. A tape recorder 19 (TR), a record player 20 and a microphone 21 can be connected to the sound film projector 1 via these cables ( Fig. 1). _J5

Inside the sound film projector 1 are in a known manner, a projector motor 22 (PM), a projection lamp 23, a central switching and control component 24 for adjusting also mechanical components such as loop formers, film pressure plate or the like, with a servo motor 25 assigned to it ( SM) housed (Fig. 2). In addition, the sound film projector 1 contains a pulse generator 26 which works in a known manner with a light barrier and can emit both forward and backward counting pulses. The sound film projector 1 also takes on a minicomputer 27 (MC) as a central switching unit (FIG. 2). The minicomputer 27 is. as in Fig. 2, connected to the buttons on the control panel 8. In detail, these buttons are as shown below. assigned the following commands: Key 28 (SE) - deletion of the last .Saved value; Button 29 (SU) - convert scene, ie switch from one scene to the next; Key 30 - in the example case as the only one outside of the command desk 8 and assigned to a counter 39 - O-setting of the counter display; Key 31 (SP) - store the current picture count in the working memory of the minicomputer, whereby a large number of such count values can be stored; Key 32 (P) - at the end of the programming reset to the starting point before the first scene, when the program is running for recording, reset to the starting point before the previous scene; Key 33 (R2) - backward transport at 2 fps, lamp reduced light; Key 34 (E) - threading without light; Key 35 (V) - Forward with full light; Button 36 (SG) - high speed forward or backward with light; T file 37 (R) - backward with reduced light; Button 38 (stop) - Shut down the device. The projection lamp 23 can be controlled via a relay 40 from the minicomputer 27 to full light (I) or reduced light (II). The projector motor 22 is controlled by the minicomputer 27 for both the forward (V) and the reverse (R) via an electronic switch 41. The motor speed control takes place via connections 42 and 43 from the minicomputer 27. The selector switch 12 has three connections 44 to 46 to the minicomputer 27. These connections 44 to 46 are assigned to the commands fade in, fade in soft and fade in hard. An amplifier 47 is connected to the minicomputer 27 via connections 48 and 49. The tape recorder 19 (TR) is connected to the minicomputer 27 via the line 50. The central switching and control component 24 is connected to the minicomputer 27 via lines 51 to 55. The minicomputer 27 controls its servomotor 25 via lines 56, 57 and 58 and a switching element 59. The counter 39 is connected to the minicomputer via a driver stage 60, while the pulse generator 26 is connected to the minicomputer 27 via lines 61 and 62 (F i g. 2).

How to work with the device described will now be based on the F i g. 3 to 5 are explained. To the Dubbing with the device according to the invention is sufficient to set up a device the block diagram according to FIG. 2.

In this case, only the tape recorder 19 is connected to the sound film projector 1. After pressing button 34 (E = threading) the film 5 can be threaded from the supply reel 3 to the take-up reel 4. When this threading process is finished, the sound film projector 1 is started by pressing the button 35. The film 5 is now transported forward and projected with full light. Pressing the button 35 corresponds to the start according to FIG. 3. The film 5 begins with the image η = 1 to run (programming sequence see Fig. 3) and the operator ·; determines the exact beginning of the scene (x \) of the first scene to be set to music by means of a more or less slow search . This results in the definition of a reference point in the counter (26, 27, 39) following the film run, in such a way that when later (in forward or backward direction) this (actually exact scene change) position is passed through a little before and after certain switching functions are fulfilled.

After the beginning of the scene (x \) has been saved in this way, the end of the first scene is obtained by running forwards and by a more or less slow, possibly also manually performed search run. When the save button 111 (SP) is pressed again, the end of the scene found (x _t + \ = X ₁ ) is saved. Here, too, this has the effect that _{certain switching functions are fulfilled when this scene change position v 2 is passed} through later, a little before and afterwards.

In a device-specific, simpler version, which is only designed to store two scene change points at the same time, if you switch to reverse after saving the end of the scene, an example of a = 100 images before the exact scene change position (x \) Visited the film position at the beginning of the scene and stopped the film there. If you start from there in the forward run again and press the record button of the

Sound film projector 1, the sound recording for the scene provided for this is played onto the sound track of the film. You can use the selector switch (to select 2 different transitions. Details on this will be described later in relation to the execution example shown. As soon as this setting is finished and the setting of the next scene is to be started, one looks for the end of the next scene in the forward run , the ■ scene change position x>. When you save aj to by pressing the memory button 31 (Sl ') , xi becomes μ for the device and x becomes *;. The previous scene change position αϊ is thus deleted as a memory word.

After the basic mode of operation has been explained using the example of a simplified device design with only two storage locations, all possibilities for working with the device according to the embodiment will now be described. The device is equipped iii (iiLSL'i ufibjiiflswfiNLMi embodiment iiiii ciiiuiii mini computer to perform the function of a mechanical counting and Speichcrwcrkcs in a known manner here. As a guide for the description, the representation is of the Programmicrungsablaufs of FIG. 3 and the program flow. ¹ ; during the setting according to Figs. 4 and 5.

After pressing the button 34 (E = threading) the film 5 can be threaded from the unwinding reel 3 to the take-up reel 4. If this threading is finished, the sound film projector 1 is started by pressing the key 35. The film 5 is now transposed forward and projected with full light. Pressing the button 35 corresponds to the indication Start according to Fig. 3. The film 5 begins to run with the image η = 1 and the operator determines, by a more or less slow search, the ^{} I} > exact beginning of the first scene to be set to music (Αι ). As soon as he has determined this point of the film 5, he actuates the memory box 31 (SP), with the sequence already described. If the beginning of the first scene is to be when the counter reading Ai = 0, the * ° 30 (0) key must be pressed beforehand. In response to this command - pressing the Knpirhorl.Tilp il - Her 5? 7pnpnanfanp is stored in the working memory of the minicomputer 27 (x "l .)). If the operator thinks afterwards that the value that has just been stored does not correspond to his wishes, he can press key 28 (SE) . The previously saved value of x (x " (*)) is then deleted again (x" i-)). If the operator does not press the delete key 28 (SE) , he must determine the end of the first scene (x "< i) using the method already described. If the end of the scene is found, the operator presses the memory button 31 SP) and the end of the scene (x “ + ι (+)) is stored in the main memory of the minicomputer 27. It is also the beginning of the scene for the next scene. Here, too, there is again the option of deleting the last stored value. The operator decides this by pressing button 28 (SE) or not. If the operator does not press button 32 (P) either, but button 29 (SL ^, then the value X _{n + T} just saved results in x " as the starting point for the next scene. From this next scene the end of the scene ( x " + ,) and saved by pressing the memory button 31 (SP) . The beginning and end of the scene are determined for all scenes, ^ß5 up to the end of the film, if necessary. If the end of the last scene has been found (n + 1: = n _m3X ) , so if η + \ to n _m3 results, the operator presses key 32 (P).

The last value n _{m3X is thus stored} in the main memory of the minicomputer 27 and then reset to η = I. The preprogramming of the beginning and end of the scene is now complete. To prepare the Vcrlonungsarbeil according to the program sequence according to the F i g. 4 and 5, the projector motor 22 (I'M) drives the film back to a starting position before the beginning of the first scene to be set. The point χ = x „ - a, in the present case ν, - a is sought, where η stands for a number of images. z. B. 100 images that ensure a perfect I hole run from the automatic start to the activation of the individual components for the scene change. In FIGS. 6 to 8, this starting position is denoted by * - 100. As soon as the minicomputer 27 detects that this position has been reached, the projector 22 is stopped (PM.). Should the setting of the first scene üCgOfinCn wCTuCTi, uciaiigi uvT DcuiCMcriuC uic TäSic 35 fty and the record button of the sound film projector 1. The projector motor 22 is thus started in the preheating run. The minicomputer 27 now queries the switch position of the selector switch 12. If this selector switch 12 is set to cross-fading (x), it looks for the point λ = .V _n - b on the film 5. In example case c , according to FIG. 6 * -9. - b stands for -9. As soon as the minicomputer 27 has determined this point, it starts the Tonbai.Jgcrät 19. In the case of overriding (FIG. 6), this is also the point at which the recording is initiated by switching on the amplifier 47. It fades in the sound up to about x "+ 9 up to full volume. If the position of the selector switch 12 has not yet been changed, the minicomputer 27 waits until the point Af = x " ₄ - # (FIG. 5). in order to give the blanking signal for the amplifier 47 there. In the example according to FIG. 6, -g- - 1. In the diagram according to FIG. 6 is X _n 4 ι = ν ?. The point at which the fade-out signal for the amplifier 47 is given is there at X2 - 1. The sound recording is then up to about a? + 17 faded in from the recording (member). The film 5 is further transnorted by the proiector motor 22. The minicomputer 27 now expects the position χ = Ar _n + ι + c. In the example case according to FIG. 6, c = 30. As soon as the minicomputer 27 determines that this point of the film 5 has been reached, it gives the stop command for the tape recorder 19. At the same time, the projection lamp 23 and the projector motor 22 are switched off and the servo motor 25 is activated the command from minicomputer 27 to start up. It is the task of this servo motor 25. controlled by the minicomputer 27, instead of manual actuation, which is of course also possible, to switch the central switching and control component 24. After the servomotor 25 on the central switching and control component 24 has started, the minicomputer 27 expects the switch position “projector motor backwards”. Once the desired switching position has been reached, the servomotor 25 is stopped by the minicomputer 27. The projector motor 22 is switched to fast reverse transport of the film 5. This transport process for the film 5 continues until the minicomputer 27 (determines) the counter graduation χ = X _{n +} ι - a, in the example case X2 - 100. There the projector motor 22 is stopped. The film 5 remains stopped at this point as long as neither the key 29 (SU) nor the key 32 (P) is pressed. If the operator wants to listen to the scene that has just been set to music again or to add new music, he presses key 32 (P). The minicomputer 27 then sets

back to the beginning of the scene (beginning of Fig. 4) and controls the Projektofinolof for fast backward movement until the point .v = .t “- a, in the example according to Fig. 6 αϊ - 100, is reached. There the projector motor 22 is stopped. By pressing the button 35 (V) and the record button on the sound film projector 1, the above-described dubbing process can run again. If only key 35 (V) is pressed, the operator can listen to the scene that has just been set to music. The minicomputer 27 brings the film 5 back to the stop point of the projector motor 22 at Χι - 100. If the sounding of the last toe of the film is satisfactory, the operator presses the button 29 (SU). As shown in FIG. 5, we then get η + I for h, ie the previous end of the scene wildly at the beginning of the scene for the following scene. Basically, you can either go back to the beginning of this .SznnR schsi'.cn for the purpose of listening to the scene that has just been replayed, or you can approach the next scene via "ieich 2" the version ".

The above-described entrustment process is now repeated for all the intended scenes, until the entire film is set to music.

In the same way as has been described for the cross-fading process, the scene transitions can be designed differently, depending on the position of the selector switch 12. The illustration according to FIG. 7 shows a scene transition in which the fade in and out is hard. This happens when the minicomputer 27 after the button 35 (V) and the record button of the goal film projector 1 have been operated, the switch position of the selector switch 12 finds in which it the

Start of the tape recorder 19 should trigger at χ = X _n - el. 7, the tape recorder 19 then starts at X \ - 4, at x "- Γ - X \ - 1 the amplifier 47 is switched on and the recording continues (FIG. 4) until the next changeover point. There the running scene can also be faded out softly instead of hard according to FIG. 7, as FIG. 8 shows (FIG. 5). The selector switch 12 must for this purpose be brought into the central position before reaching the scene end (soft Blend ---) whereby the minicomputer will cause leaves 27, wherein χ = X _n + ι - d, in Beispieisfalle Λ'2 - 19, the recording (amplifier 47) fade out, approximately until λ> Then the control of the tape recorder 19 and the projector motor 22 takes place in the same way as already described for the fading process (see Fig. 5). From the foregoing it is clear that at each beginning or end of a scene it is possible to choose between the three different switches of the selector switch For a better understanding of the sequence, the recording phase (record) is shown with solid lines, the repetition phase (playback) with dashed lines in the representations according to FIGS.

The minicomputer 27 naturally forms the actual arithmetic unit of the Image counting device which receives pulses from the pulse generator 26 and the counter result in the display device to the counter 39 indicates.

In addition 8 sheets of drawings