SU34780A1 - Chronograph sound recorder - Google Patents

Description

Deciphering sound recordings made on film by shooting from life, i.e. finding a correspondence between the note text and the sound strip of the film, is in some cases considerable difficulties. The present invention aims to provide an auxiliary tool that facilitates and clarifies such decoding.

During the execution of the sounds recorded on the film, at certain moments, the contacts of the electric circuits leading the current to the recorder close. Thus, for example, when recording orchestral music, one contact closes with each beginning of the beat, the second contact closes with each score of the score and the third contact when there are unforeseen or predetermined circumstances. The closure of the contacts is made by the person in the orchestra, who follows the music and the conductor.

The recording device can be implemented in two versions.

The first option is a telegraphic Morse device with the characteristic difference that the film tape is automatically applied to the paper tape, i.e. its division into frames, and the contact closure marks are recorded parallel to this conventional

(506)

scale. In this embodiment, the recording can be carried out in any way, both electrolytically and by electromagnetic control of writing and writing pens.

The second option is an optical recording of the moments of the contacts and contacts directly on the film, for which purpose the closable electric current or lights a light bulb that throws a light beam on the film, or acts on electromagnets that raise the flaps that block the path from the light source to the film.

In the attached drawing of FIG. 1 and 2 depict a device according to the invention.

When a music is being played on a film, a person who follows the music (by notes and conductor) closes, at a press of a key, at the necessary moments indicated in the musical text (for example, with the beginning of each measure) electrical contact 7 (Fig. 1) As a result, the electric current excited by the source 5 drives one of the writing devices 6. At other times, the moments specified in the note text (for example, with the appearance of each score that covers a group of measures) contact 2 in the same way. , which actuates another of the writing devices 6, At the same time, the director can click on pin 3, wishing to note special moments in the process of recording music, with these 8 actions, the third of writing devices 6. Writing devices would leave traces on the paper tape 7 propelled by rollers 8. A rotating switch with brushes 4 is arranged on the motor shaft moving the sound-receiving film and closes the current S through the passage of a known film length, for example, with each frame, after The result is that the fourth of the writing devices (b) leaves a mark on the tape 7 in the form of a dashed line of conventional time scale). The writing device can be any of the existing ones and is not shown in the drawing.

The closure of each of the I, 2, or 3 contacts can ignite one of the electric lights 9 (Fig. 2) placed in separate chambers, the ray of light falling through the corresponding aperture 10 onto the moving film 11, which may be the same one on which a sound, or other, moving in sync with it. The beam of light leaves a photographic mark on the film.

Together with several light bulbs one can use a single light source 9 in an opaque chamber (Fig. 3); dampers 12 block the access of light from the light bulb 9 through the holes 10 to the film / film. A closed current through one of the indicated contacts 7, 2, 3 actuates the relay 13, which pushes the corresponding flap 12 from the opening 10, as a result of which the light beam

hits the film 7 / and leaves a photographic mark on it.

In addition, it is possible to use an optical projection system if the film is not close enough to the location of the lamp 9. The optical system can be placed between the bulbs and the film.

The subject matter of the invention.

Claims (4)

1. A device for chronographing sound recording, characterized by the use of a series of incandescent lamps 9, enclosed in opaque boxes with openings 10 against the film strip and included in an electrical circuit using contacts 1, 2, 3 at time points determined by sound recording, with the purpose marks of these moments on the film strip. 2. A device change according to claim 1, characterized in that with the incandescent lamps 9 permanently included in the electrical circuit, before the openings 10, the dampers 72 are applied, fixed on the corners of the relay 13, included in the electrical circuit by contacts 1,2,3 , 3. In the device according to claims 1 and 2, in the case of using chronographing with a separate mobile film, use, for the purpose of synchronizing sound and chronographic recordings, a rotating contact 4 fixed on the motor axis driving the film and closing the current at the moments of passing a known film length. 4.In the device according to claims 1 and 2, in order to avoid the location of the lamps 9 in close proximity to the film, use an optical projection system placed between the lamps and the film 77.