FR2957476A1 - Audio-sound module for electronic selection of simultaneous listening modality of sources of electronic signals in audio-sound installation, has selector arranged to simultaneously and separately restore output signals to output blocks - Google Patents

Abstract

The module (100) has two output blocks, where each output block restores output signal distinct from output signals of the other output block. A selector (110) maneuverable between two positions in each of which the module is arranged to mix partially input signals (S, E), differently from one position to another of the selector and simultaneously and separately restore the output signals different from one position to another of the selector for each of the output blocks. An independent claim is also included for an audio-sound installation comprising a source for emitting an input signal.

Description

TECHNICAL FIELD The present invention relates to an audio selection module for electronic selection of the simultaneous listening mode of electronic signal sources corresponding to sounds. This audio-phonic module can be portable, and also makes it possible to modify the listening mode of audio-phonic sources and, in particular, to mix specific audio-phonic sources to monitor and / or control said audio source (s). - phonic, especially by pre-listening to a given audio source. The present invention also relates to an audio-phonic installation comprising such an audio-phonic module.

PRIOR ART In the prior art, devices are known, such as in particular that described in US Pat. No. 5,933,507, which proposes an integrated stereo device and comprises a "mixing" table, an amplifier and loudspeakers. Also known is US Patent 2006/269 085 which relates to the application of sound effects to a musical signal as a function of the displacement of the portable audio device producing the musical signal.

Patent GB 2,424,155 describes the simultaneous use of several wireless headsets by multiplexing the "mixes" of sound from the various musicians on the same wireless transmission channel (for example Wi-Fi), followed by demultiplexing for playback on the atria of the musicians. However, these known devices do not allow a musician or a setting operator, commonly called INTEL1-FR-1 TEXTE DEPOSE CL / SL 2957476 - 2 - called "DJ", to listen independently or combined, in a successive manner or simultaneously, one or more sound sources without having to have as many playback devices (eg headphones, headsets or speakers) as audio-phonic sources.

DISCLOSURE OF THE INVENTION The present invention aims to remedy these drawbacks by proposing an audio-phonic electronic selection module for the modality of simultaneous listening of electronic signal sources corresponding to different sounds, which allows independent listening or combined, successively or simultaneously, one or more sound sources, in a simple, ergonomic and practical manner, and which brings, in addition, auditory comfort to the user by allowing him to dispense with a traditional "return »By loudspeaker (s). The present invention also aims at proposing an audio installation comprising such an audio-phonic module. The present invention thus relates to an audio module for electronically selecting the modality for simultaneous listening of at least two electronic signal sources corresponding to sounds, the audio-sound module being able to receive a first signal of inputting a first source and a second input signal from a second source and outputting at least one output signal to be sent to a playback material. This audio module is remarkable in that it comprises at least two output blocks each capable of reproducing a first, second output signal distinct from the second, the first output signal from the other output block, at least one selector operable between at least two positions in each of which the audio-sound module is arranged to mix, INTEL1-FR-1 TEXTE REMOVAL CL / SL - 3 - at least partly, the first and second input signals, differently from a position to the other of the selector, and to simultaneously render, separately for each of the output blocks, first and second output signals different from one position to another of the selector. This audio-phonic module therefore allows a user to choose, depending on the position of the selector, a different listening mode combining or not the first and second input signals.

According to an advantageous embodiment, the audio-sound module is arranged so that the positions comprise at least: a first position in which the first output signal is formed by at least the first parts of the first and second mixed input signals, and the second output signal is formed by at least the second portions of the first and second input signals and mixed, a complementary position in which the first output signal is formed by at least the first part of the first input signal. and the second output signal is formed by at least the first part of the second input signal. The operator can thus listen, according to the position of the selector, a different combination of the first and second input signals in each ear (first position) or the first input signal in the right ear and the second input signal in the left ear or a combination of the first and second input signals in one ear and one of the first or second input signals in the other ear. According to a preferred embodiment, the audio module is arranged so that the complementary position is a second position in which the first signal INTEL1-FR-1 TEXTE DEPOSE CL / SL 2957476 - 4 - output is formed by the first part of the first input signal, and the second output signal is formed by the first and second portions of the second input signal and the second portion of the first input signal. The operator can thus listen, in this second selector position, to the first part of the first input signal in the left ear, and the mixing of the first and second parts of the second input signal and the second part of the input signal. first input signal in the right ear, or vice versa. According to another preferred embodiment, the audio-sound module is arranged so that the complementary position is a third position in which the first output signal is formed by the first and second parts of the first input signal, and the second input signal is formed by output signal is formed by the first and second portions of the second input signal. The operator can thus listen, in this third position of the selector, the mixing of the first and second parts of the first input signal in the left ear, and the mixing of the first and second parts of the second input signal in the first input signal. right ear, or vice versa. According to another embodiment, the selector is also operable in a fourth position in which the first output signal is formed by the first part of the second input signal, and the second output signal is formed by the first and second signals. parts of the first input signal and the second part of the second input signal. The operator can thus listen, in this fourth position of the selector, the first part of the second signal in the left ear and the mixture of the second part of the second signal and the first signal in the right ear, or vice versa. INTEL1-EN-1 REMOVAL TEXT CL / SL 2957476 - 5 - The audio-sound module preferably comprises at least two distinct inputs, of which at least a first input adapted to receive the input of the first input signal and a second input capable of to receive the input of the second input signal. Each of these first and second inputs may be dedicated to a specific type of signal, symmetrical or asymmetrical. Advantageously, the first input comprises at least two terminals of the XLR type adapted to receive the input 10 of a first stereo balanced line level input signal and the second input comprises at least one symmetrical "jack" adapted to receive the input of a second asymmetric line level input signal. The audio-sound module is preferably provided with at least one conversion block connected to said terminals and arranged to convert the symmetrical line-level stereophonic input signal into a conventional non-differential signal. The output blocks are preferably arranged to transform a conventional signal into a differential signal. The audio-sound module advantageously comprises at least one orientation block provided between the first, second inputs and the output blocks, the orientation block being provided with at least one contactor coupled to the selector and arranged to maneuver simultaneously, when said selector is operated, a plurality of switches adapted to distribute the first and second input signals between the output blocks according to the position of said selector. According to a preferred embodiment, the audio module comprises at least one sorting block provided between the first, second inputs and the orientation block, the sorting block comprising at least as many removable jumpers as there are switches in the block INTEL1-FR-1 TEXT REMOVAL CL / SL - 6 - orientation, some of the said removable jumpers being removed before the implementation of the audio-phonic module according to the choices of the operator as to the emission audiophonique he wishes to obtain on the material of restitution. The audio-sound module may further comprise at least one amplifier coupled to at least one of said output blocks for amplifying the first, second corresponding output signal.

The audio-sound module may finally include at least one switch coupled to said first input and operable to cause the disconnection of the first input receiving the first input signal.

The present invention also relates to an audio-audio installation intended to be managed by at least one operator and comprising at least a first source capable of transmitting a first input signal and a second source capable of transmitting a second input signal, a restitution material comprising at least a first and a second distinct element each capable of restoring at least one output signal. This audiophonic installation is remarkable in that it comprises at least one audio-phonic module as described previously so that the first and second output signals restored by the first and second elements are different from a position of the selector to another position. . Advantageously, the first source is arranged to provide a first symmetrical line level stereo input signal and the second source is arranged to provide a second asymmetric line level stereo input signal. The first and second sources are, for example, chosen from the group comprising at least one turntable, an instrument producing an electronic sound that can be recovered without the use of a microphone. a mixer, a microphone-type receiver, a musical instrument. In the case of the microphone-type receiver and the musical instrument, the latter will be connected to the audio-sound module via, for example, a mixer for providing, at the input of the audio module, phonic, a line level signal. The audio-sound installation advantageously comprises at least one external rendering element capable of transmitting a general signal, the first source is preferably arranged so that the first input signal corresponds to the general signal, and the second source is preferably Arranged so that the second input signal corresponds to a signal different from the general signal. The second source is for example arranged so that the second input signal corresponds to a sound intended to be broadcast in a deferred manner in time. 20

BRIEF DESCRIPTION OF THE DRAWINGS The invention is described below, by way of non-limiting example, with reference to the accompanying drawings, in which: FIG. 1 is a schematic view of the components of an audio-sound module according to FIG. invention; Figures 2 to 5 are diagrams each showing an audio-sound system implementing an audio-phonic module according to the invention; FIGS. 6A, 6B and 6C are diagrams, complementary to one another, of the audio-phonic module according to the invention, these diagrams detailing the INTEL1-ER-1 TEXTE REMOVAL CL / SL-8- components of the audio-phonic module and on which all the configuration jumpers are in place, that is to say, at the output of manufacture; Figure 6A details the filter block, the conversion blocks, the sorting blocks and the orientation block, Figure 6B details the power supply and the light block, Figure 6C details;

FIG. 7A is a partial diagram of the audio module according to the invention, this diagram being equivalent to a part of the diagram in FIG. 6A, and on which a first half of the configuration jumpers forming a first set of jumpers is removed whereas the other riders forming a second set of riders are held in place;

FIG. 7B is a partial diagram similar to the previous one on which the configuration jumpers of the second game are removed while the jumpers of the configuration of the first game are held in place. DESCRIPTION OF THE INVENTION With reference to the figures, 100 is the audio-phonic module and 200 is the audio installation according to the invention. With reference to FIG. 1, the audio module 100 comprises a first input 40a, 40b provided with two XLR type terminals adapted to receive the input of a first symmetrical line level stereophonic input signal S (symbolized by an incoming arrow). The first input 40a, 40b is connected to a conversion block 4A, 4B adapted to ensure the conversion of the first symmetrical line level stereophonic input signal S into a conventional non-differential signal.

INTEL1-FR-1 TEXT REMOVAL CL / SL 2957476 - 9 - The audio-sound module 100 also comprises a second input 30 provided with a symmetrical "jack" able to receive the input of a second stereophonic input signal E asymmetric line level (symbolized by an incoming arrow) via terminals 30a, 30b (FIG. 6A). The second input 30 is connected to a filter block 3 comprising a filter (not shown in this figure) of the electronic bandpass type and adapted to process the second asymmetrical line level stereophonic input signal E. This filter is coupled to a switch (not shown in this figure) operable to cause the filter to be switched off. In another embodiment not shown, the audio-phonic module has no filter block. The conversion block 4A, 4B and the filter block 3 are connected to a sorting block 5A, 5B. As detailed below, this sorting block 5A, 5B comprises removable jumpers (not shown in this figure) some of which are removed before the implementation of the audio module 100, depending on the operating mode chosen by the operator. The sorting block 5A, 5B is connected to an orientation block 6 comprising switches (not shown in this figure). The sorting block 5A, 5B comprises a contactor (not shown in this figure) making it possible to simultaneously operate the switches so that they distribute the input signals S and E between two distinct output blocks 7A, 7B. depending on the position of the contactor. The switch is further coupled to a selector operable by an operator. INTEL1-FR-1 TEXTE REMOVAL CL / SL A and 7B, we detail below the construction and components of the audiophonic module 100 according to the invention. With reference to FIG. 6B, the audio module 100 is provided with a power supply unit 1 comprising a power supply circuit making it possible to obtain a +/- 9 V symmetrical power supply from a 9V battery 10. or from an external supply 10a of 9V. The power supply unit 1 comprises diodes 11a and 11b of the "non-return" type, the function of which is to protect the audio-sound module 100 against accidental inversion of the voltage at the terminals of the battery 10 or the external power supply. 10a. When the battery 10 and the power supply 10a are simultaneously present, the diodes 11a and 11b also have the function of preventing the external power supply 10a from "charging" the battery 10, or conversely, preventing the battery 10 from becoming "Discharge" in the external supply 10a. The power supply 1 also comprises a switch 12 of normally open type to turn the audio-sound module 100 on or off. In the closed position, the switch 12 provides at its output 12a a voltage equal to + 9V. The power supply unit 1 also comprises a switching voltage converter 13, formed by an integrated circuit, for example an "ICL7660" circuit of the company "Maxim". This converter 13 makes it possible to generate on its output 13a a negative voltage of -9V from the + 9V positive voltage present at the output 12a of the switch 12. This converter 13 operates, in a conventional manner, by alternating a phase of charge of the capacitor 13b connected to its terminals 13c, 13d, and a discharge phase of the capacitor 13b connected to its terminals 13a and 13f, the negative voltage of -9V being obtained on the terminal 13a. INTEL1-FR-1 REMOVAL TEXT CL / SL - Referring to FIGS. 6A-C, 2957476 - 11 - With reference to the same FIG. 6B, the audio module 100 comprises a light block 2 formed by a light indicator circuit enabling to indicate to an operator that the audio-sound module 100 is under voltage. This light block 2 comprises a diode 20, a red light emitter, connected in series with a current limiting resistor 20a, for example 2.2 KΩ, and connected by its terminal 21 to the voltage present on the output 12a of the As a result, the diode 20 is turned on when the switch 12 is in the closed position, which gives the operator a visual indication of the power up of the audio module 100. Referring to the same FIG. 6A , the filtering unit 3 has the function of optionally filtering the second asymmetrical input signal E as a function of the position of the switches 31a and 31b coupled, implemented by the operator. Indeed, when the switch 31a is in its position shown in FIG. 6A, the capacitor 32a is short-circuited by the switch 31a, and the input circuit branch constituted by the resistor 33a and the capacitor 34a is not connected to the output circuit of the filter block 3 constituted by the load resistor 35a located on the right of the filter block 3 in FIG. 6A. As a result, the signal from the terminal 30a of the second input 30 is sent directly to the load resistor 35a via the resistor 33b, i.e. it does not undergo any filtering. On the other hand, when the switch 31a is in its other position, the resistors 33a and 33b are then connected in parallel, their common output is connected to the capacitor 34c and the load resistor 35a by the capacitor 32a. Consequently, on the one hand, the high frequencies of the signal thus transmitted from the terminal 30a of the second input 30 are preferably sent to the signal ground by the pass-through filter. -haut constituted by the capacitor 34a, and secondly, the low frequencies of said signal are preferably blocked by the high-pass filter constituted by the capacitor 32a. As a result, the resistors 33a and 33b and the capacitors 32a and 34a constitute a bandpass filter 10 for the signal from the terminal 30a of the second input 30. Similarly, when the switch 31b is in its position shown on 6A, the capacitor 32b is short-circuited by the switch 31b, and the circuit branch consisting of the resistor 33c and the capacitor 34b is not connected to the output circuit located on the right of the filter block 3 and constituted by the load resistor 35b. Accordingly, the signal from the terminal 30b of the second input 30 is sent directly to the load resistor 35b via the resistor 33d, i.e., it does not undergo any filtering. On the other hand, when the switch 31b is in its other position, the resistors 33c and 33d are then connected in parallel, their common output is connected to the capacitor 34b, and this common output is connected to the load resistor 35b by the capacitor. 32b. Therefore, on the one hand, the high frequencies of the signal thus transmitted from the terminal 30b of the second input 30 are preferably sent to the signal ground by the high-pass filter constituted by the capacitor 34b, and secondly , the low frequencies of said signal are preferably blocked by the high-pass filter constituted by the capacitor 32b. As a result, the resistors 33c and 33d and the capacitors 32b and 34b constitute a band-pass filter for the signal from the terminal 30b of the second input 30. In FIG. preferred embodiment of the invention, the resistors used in the filter block 3 all have a value equal to 47052, and the capacitors of said filter block 3 all have a capacity equal to 470 pF. The advantage of this band-pass filter on the inputs of the stereophonic signal coming from the second input 30 is notably to bring a comfort of sound to the operator by allowing him to limit the input sound power in the frequency ranges where it is usually the most important. With reference to the same FIG. 6A, the conversion block 4A represents the input circuit for the XLR input 40a, an input circuit whose function is to convert the differential signal present on the terminals 402a and 403a of this socket. a conventional non-differential signal. Terminal 401a is connected to the signal ground. The terminal 402a is connected to the signal ground by the voltage divider bridge formed by the resistors 46a and 42a of equal values. The positive input terminal 433a of the operational amplifier 43a is connected to the midpoint of this divider bridge, i.e. the voltage on the positive input terminal 433a of the operational amplifier 43a is half of that present on the terminal 402a of the input 40a. The terminal 403a of the input 40a is connected to the negative input terminal 432a of the operational amplifier 43a by the resistor 41a, and the output terminal 431a of the amplifier 43a is also connected to the input terminal 432a. negative of the operational amplifier 43a by the resistor 47a of the same value as INTEL1-FR-1 TEXTE REMOVAL CL / SL 2957476 - the resistor 41a, which means that the voltage at the terminal 432a is the half sum of voltages at the terminal 402a of the input 40a and the output terminal 431a of the operational amplifier 43a. Stationary operation of the operational amplifier 43a is obtained when the voltages on its positive terminals 433a and negative 432a are equal, that is to say, when the half sum of the voltages at the terminal 402a of the input 40a and the output 431a of the operational amplifier 43a is equal to half that present at the terminal 402a of the input 40a. As a result, the output signal of the conversion block 4A is equal to the difference between the signals present at the terminals 402a and 403a of the right balanced XLR input input 40a. The capacitors 44a and 45a, connected respectively to the terminals of the resistors 46a and 47a, have the function of filtering the high frequencies that could be produced by feedback in the audio-phonic module 100 according to the invention or by interfering with electromagnetic sources. external (for example, Wifi or wireless headsets), and to prevent the sound module 100 becomes in turn a source of high frequency noise for these external devices. In a preferred embodiment, the operational amplifier 43a is for example an integrated circuit type NE5532P manufactured by the American company "Texas Instruments", the capacitors 44a and 45a have a capacity of 100pF, and the resistors 41a, 42a, 46a and 47a have a value of 4.7KΩ. With reference to the same FIG. 6A, the conversion block 4B represents the input circuit for the input 40b XLR, and it is identical in all respects, both in its assembly and in its operation, to the INTEL1-FR block. 1 TEXT REMOVAL CL / SL - 15 - 4A conversion described above. Accordingly, the description made above for the conversion block 4A is also valid for the conversion block 4B, the elements 40a, 41a, 42a, 43a, 44a, 45a, 46a, 47a of the conversion block 4A being replaced by their respective corresponding elements bearing the same numbers with the index b instead of the index a. The conversion blocks 4A, 4B which have just been described go out on a sorting block 5B and the filter block 3 leaves on a sorting block 5A. The sorting blocks 5A and 5B each have five resistors 50a, 51a, 52a, 53a, 54a for the sorting block 5A and five resistors 50b, 51b, 52b, 53b, 54b for the sorting block 5B. They also each comprise four removable jumpers 55a, 56a, 57a, 58a for the sorting block 5A and four removable jumpers 55b, 56b, 57b, 58b for the sorting block 5B. The outputs of the sorting units 5A, 5B are connected to the orientation block 6. The orientation block 6 comprises a contactor consisting of four switches 60, 61, 62, 63 which can each take three positions; each switch 60, 61, 62, 63 comprises a fixed terminal which, in the drawing, bears the reference of the switch. The fixed terminals are each connected respectively to a resistor 64, 65, 66, 67; the movable blades of all the switches 60, 61, 62, 63 are integral in their movement and are therefore either in the high position, or in the intermediate position, or in the low position. Depending on whether the jumpers of the sorting blocks 5A, 5B are present or not, the operation of the audio-sound module 100 according to the invention is different: this is why for the rest of this description, reference is made successively to FIGS. 7A then 7B detailing in each case the structure and operation of the circuits concerned. INTEL1-EN-1 TEXTE REMOVAL CL / SL 2957476 - 16 Referring to FIG. 7A, the operation of the audio-sound installation 200 and the audio-sound module 100 according to the invention is now described when only the jumpers of FIG. Configuration 55a, 57a and 56b, 58b respectively of the sorting blocks 5A and 5B are in place. In the sorting block 5A, the signal from the point 36a of the filter block 3 is transmitted by the resistor 51a. A monophonic signal, corresponding to the stereophonic signal from the second input 30, 10 is produced at the common output of the resistors 51a and 53a by connecting the input of the resistor 51a to the point 36a, and the input of the resistor 53a to the point 36b; this monophonic signal is then sent to the jumper 55a. A ground signal is sent to jumper 57a via resistor 52a. The purpose of this ground signal is to not leave "in the air" a contact of the contactor 60, in order to avoid radio interference at this contact. The signal from point 36b from filter block 3 is transmitted by resistor 54a. In the sorting block 5B, the signal from the output 431a of the operational amplifier 43a is transmitted by the resistor 50b. A monophonic signal is produced at the common output of the resistors 51b and 53b of the sorting block 5B by connecting the input of the resistor 51b to the output 431a, and the input of the resistor 53b to the output 431b; this monophonic signal is then sent to the jumper 56b. A ground signal is sent to jumper 58b via resistor 52b. This ground signal serves to cut off the transmitted signal on one side while the monophonic signal is transmitted on the other side. The signal from the output 431b of the operational amplifier 43b is transmitted by the resistor 54b. When the switches 60, 61, 62, 63 of the switch 60 are in the up position: INTEL1-FR-1 TEXT REMOVAL CL / SL - 17 - - the ground signal coming from the jumper 58a of the sorting block 5A is sent on the input 701a of the output circuit 7A, via the switch 60 and the resistor 64; the monophonic signal coming from the jumper 57a of the sorting block 5A is sent to the input 701b of the output block 7B via the switch 61 and the resistor 65; the signal transmitted by the resistor 50b of the sorting block 5B is sent to the input 701a of the output block 7A via the switch 62 and the resistor 66 of the orientation block 6; the signal transmitted by the resistor 54b of the sorting block 5B is sent to the input 701b of the output block 7B via the switch 63 and the resistor 67 of the orientation block 6. Consequently, in the case where the switches of the orientation block 6 are in the high position: the output circuit 7A receives the mixture of the monophonic signal produced from the input of the second input 30; and the output circuit 7B receives the signal from the input 40b XLR. In other words, the stereophonic signal sent on the output circuits 7A and 7B of the audio module 100 according to the invention is then the stereophonic signal coming from the XLR stereo inputs 40a, 40b, the output block 7B receiving, moreover the monophonic signal coming from the input of the second input 30. When the switches 60, 61, 62, 63 of the contactor 60 are in the intermediate position: the signal coming from the point 36a of the filtering unit 3 via the resistor 50a of the sorting block 5A INTEL1-FR-1 TEXTE REMOVAL CL / SL - 18 - is sent to the input of the output circuit 7A, via the switch 60 and the resistor 64 of the orientation block 6; the signal from the point 36b of the filtering unit 3 via the resistor 54a of the sorting block 5A is sent to the input 701b of the output block 7B via the switch 61 and the resistor 65 of the orientation block 6; the signal transmitted by the resistor 50b of the sorting block 5B is sent to the input of the output block 7A, via the switch 62 and the resistor 66 of the orientation block 6; the signal transmitted by the resistor 54b of the sorting block 5B is sent to the input of the output block 7B via the switch 63 and the resistor 67 of the orientation block 6. Consequently, in the case where the switches of the orientation block 6 are in the intermediate position: the output block 7A receives a mixture of the signal coming from the terminal 30a of the second input 30 (after filtering of the filtering unit 3) and the signal of the input 40a XLR; the output block 7B receives a mixture of the signal from the terminal 30b of the second input 30 (after filtering the filter block 3), and the signal of the input 40b XLR. In other words, the stereophonic signal sent on the output blocks 7A and 7B of the audio module 100 according to the invention is then the mixing of the stereophonic signals coming from the second stereophonic input and the stereophonic input constituted by the inputs. 40a, 40b XLR. When the switches 60, 61, 62, 63 of the contactor are in the low position: INTEL1-FR-1 TEXTE REMOVAL CL / SL 2957476 - 19 - the ground signal coming from the jumper 58a of the sorting block 5A is sent to the input of the output circuit 7A, via the switch 60 and the resistor 64 of the orientation block 6 5 the monophonic signal sorting block 5A is output block 7B, via the switch 61 and the resistor 65 of the orientation block 6 ; the monophonic signal from the jumper 56b of the sorting block 5B is sent to the input 701a of the output block 7A via the switch 62 and the resistor 66 of the orientation block 6; the ground signal from the jumper 58b of the sorting block 5B is fed to the input 701b of the output block 7B via the switch 63 and the resistor 67 of the orientation block 6. Accordingly, in the case where the switches of the orientation block 6 are in the low position: the output block 7A receives the monophonic signal 20 produced from the input 40a, 40b stereophonic XLR; the output block 7B receives the monophonic signal produced from the second input 30.

Referring now to FIG. 7B, the operation of the audio system 200 and the audio-sound module 100 according to the invention will be described when only the configuration jumpers 55a, 57a of the sorting block 5A and the 30 configuration jumpers 55b, 57b of the sorting block 5B are in place. In the sorting block 5A, the signal from the point 36a of the filter block 3 is transmitted by the resistor 50a. A monophonic signal, corresponding to the INTEL1-FR-1 TEXTE DEPOSE CL / SL coming from the jumper 56a of the sent on the input 701b of the stereophonic signal coming from the second input 30, is produced at the common output of the resistors 51a. and 53a by connecting the input of the resistor 51a to the point 36a of the filter block 3, and the input of the resistor 53a to the point 36b of the filter block 3; this monophonic signal is then sent to the jumper 55a. A ground signal is sent to jumper 57a via resistor 52a. The purpose of this ground signal is to not leave "in the air" a contact of the switch 61, in order to avoid a radio interference at this contact. The signal from point 36b of filter block 3 is transmitted by resistor 54a. In the sorting block 5B, the signal from the output 431a of the operational amplifier 43a of the conversion block 4A is transmitted by the resistor 50b. A monophonic signal, corresponding to the stereophonic signal from the inputs 40a and 40b XLR, is produced at the common output of the resistors 51b and 53b by connecting the input of the resistor 51b to the output 431a of the operational amplifier 43a of the block. conversion 4A, and the input of the resistor 53b to the output 431b of the operational amplifier 43b of the conversion block 4B; this monophonic signal is then sent to jumper 55b. A ground signal is sent to jumper 57b via resistor 52b. The purpose of this ground signal is to not leave "in the air" a contact of the switch 62, in order to avoid radio interference at this contact. The signal from the output 431b of the operational amplifier 43b of the conversion block 4B is transmitted by the resistor 54b. When the INTEL1-FR-1 TEXTE DEPOSE CL / SL switches 60, 61, 62, 63 are in the up position: the monophonic signal coming from the jumper 55a of the sorting gate 5A is sent to the input 701a of the output block 7A via the switch 60 and the resistor 64 5 of the orientation block 6; - The ground signal from the jumper 57a of the sorting block 5A is sent to the input 701b of the output block 7B via the switch 61 and the resistor 65 of the orientation block 6; The signal transmitted by the resistor 50b of the sorting block 5B is sent to the input 701a of the output block 7A via the switch 62 of the contactor and the resistor 66 of the orientation block 6; the signal transmitted by the resistor 54b of the sorting block 5B is sent to the input 701b of the output block 7B, via the switch 63 of the contactor and the resistor 67 of the orientation block 6. Consequently, in the when the switches of the orientation block 6 are in the up position: the output block 7A receives the mixture of the monophonic signal produced from the second input 30 and the signal from the input 40a XLR; and - the output block 7B receives the signal from the input 40b XLR. In other words, the stereophonic signal sent on the output blocks 7A and 7B of the audio module 100 according to the invention is then the stereophonic signal coming from the stereo inputs XLR 40a, 40b, the output block 7B receiving, in 30 in addition, the monophonic signal from the second input 30. When the switches 60, 61, 62, 63 of the switch 60 are in the intermediate position: the signal from the point 36a of the block of INTEL1-ER-1 TEXT REMOVED CL / SL 15 Filtering 3 via the resistor 50a of the sorting block 5A is sent to the input 701a of the output block 7A, via the switch 60 of the contactor and the resistor 64 of the orientation block 6; The signal from the point 36b of the filter block 3 via the resistor 54a of the sorting block 5A is sent to the input 701b of the output block 7B via the switch 61 of the contactor and is sent to the input of the block via the switch 62 of the contactor and the 66 of the orientation block 6; transmitted by the resistor 54b of the block is sent to the input 701b of the block of correspondingly, in the case where the switches of the orientation block 6 are in the intermediate position: the output block 7A receives a mixture of the signal from the terminal 30a of the second input 30 filtered by the filter block 3, and the signal of the input 40a XLR; the output block 7B receives a mixture of the signal 25 from the terminal 30b of the second input 30 (after filtering of the filtering unit 3) and the signal of the input 40b XLR. In other words, the stereophonic signal sent on the output blocks 7A and 7B of the audio module 100 according to the invention is then the mixing of the stereophonic signals coming, on the one hand, from the "jack" input stereophonic, and secondly, the stereophonic input constituted by the inputs 40a, 40b XLR. When the switches INTEL1-FR-1 TEXTE REMOVE CL / SL resistor 10 - the signal transmitted by the resistor 50b of the sorting block 5B output 7A, resistance the signal sorting 5B output 7B, resistance via the switch 63 of the contactor and 67 of the orientation block 6. 65 of the orientation block 6; When the contactor 60 is in the low position: the monophonic signal coming from the jumper 55a of the output block 7A is sent to the input 701a of the output block 7A, via the switch 60 of the contactor and the resistor 64 of the orientation block 6; the ground signal from the jumper 57a of the output block 7A is fed to the input 701b of the output block 7B via the switch 61 of the contactor and the resistor 65 of the orientation block 6; - The ground signal from the jumper 57b of the sorting block 5B is sent to the input 701a of the output block 7A, via the switch 62 of the contactor and the resistor 66 of the orientation block 6; The monophonic signal coming from the jumper 55b of the sorting block 5B is sent to the input 701b of the output block 7B via the switch 63 of the contactor and the resistor 67 of the orientation block 6. As a consequence, in the case where the switches of the orientation block 6 are in the low position: - the input product block 30; The output product block 7A receives a monophonic signal from the input of the second

output 7B receives a monophonic signal from the stereophonic input constituted by the inputs 40a, 40b XLR. In the embodiment described above, the resistances 50a, 51a, 52a, 53a and 54a appearing in the output block 7A have respective values 10KS2, 20KS2, 10KS2, 20KQ and 10Ko; the resistances 50b, 51b, 52b, 53b, 54b appearing in the sorting block 5B are respectively 10KS2, 20KS2, 10KS2, 20KS2 and 10KS2; and the resistors 64, 65, 66, 67 appearing in the INTEL1-FR-1 CLOSED TEXT REFERENCE block 6 are all set to 10KS2. Referring to any of Figs. 6 to 7B, it will be seen that the output block 7A represents a circuit for producing a differential output signal on the terminals 72a and 73a of the XLR output socket 71a, from non-differential signal present on the input 701a of the operational amplifier 70a. The output block 7B has exactly the same configuration as the output block 7A: its elements have been designated by the same references as for the output block 7A, with the difference that the index "a" has been replaced by the index "b". Consequently, the following explanations, although given for the output block 7A, can be transposed to the output block 7B. The mounting of the operational amplifier 70a is a conventional "voltage follower" (or "impedance step") mounting, which serves to decouple the voltage produced at its output terminal from the current, which passes through this same terminal. Indeed, in the absence of such a mounting, the input 701a would be directly connected to the part of the circuit located downstream of the component 70a currently used; at this point of connection, and the voltage would be dependent on the current flowing in said connection because of the impedances present in the conversion block 4A, 4B upstream of said connection. This operating mode 70a operational 70a 70a operating amplifier operational 70a with its input 30 mounting, the steady state voltage follower 703a is obtained by this negative amplifier 703a. With this operation of the operational amplifier 70a is obtained when the voltages on its input terminals 701a and 703a are equal, which is obtained when the output voltage on its terminal 702a is equal to the input voltage on its INTEL1-EN-1 TEXT REMOVAL CL / SL - 25 - terminal 701a. The signal produced at the terminal 702a of the circuit 70a is then sent via the protection and current limiting resistor 74a to the terminal 72a of the output socket 71a as a positive signal of the differential signal provided by this output socket. The signal produced on the terminal 702a of the operational amplifier 70a is also sent via the resistor 75a to a voltage inverter assembly whose main element is the operational amplifier 76a. The voltage inverter operation of this operational amplifier is obtained conventionally by connecting its positive input terminal 761a to the signal ground, and its negative input terminal 762a to its output terminal 763a via a resistor 77a likewise. value as resistance 75a. With this arrangement, the voltage on the terminal 762a of the component 76a is equal to the half sum of the voltage on the terminal 702a and the voltage on the output terminal 763a, because the resistors 74a and 77a are equal and the Current in the negative input terminal 762a can be neglected due to the very large impedance of this input. As a result, the stationary regime of the operational amplifier 76a is obtained when the voltages at the terminals of this component are equal, ie the half sum of the voltages on the terminals 762a and 763a is zero, which occurs when the signal on the terminal 763a is the opposite of the signal on the terminal 702a. The inverse signal thus produced on the terminal 763a is then sent to the negative terminal of the differential tap via the protection and intensity limiting resistor 78a. The capacitor 79a disposed across the resistor 77a has the function of filtering the high frequencies, which could be produced by feedback INTEL1-FR-1 TEXTE DEPOSE CL / SL 2957476 - 26 - in the audio-sound module 100 according to the invention or by interfering with external sources of electromagnetic radiation (eg Wi-Fi or Bluethooth devices, wireless earpieces), and to prevent the audio-sound module 100 according to the invention from becoming in turn a source of high frequency parasites for these external devices. In a preferred embodiment, the operational amplifiers 70a and 76a are the two operational amplifiers of the same integrated circuit NE5532P marketed by the American company called "Texas Instruments"; the capacitor 79a has a capacity of 100pF; the resistors 75a and 77a have a value of 4.7K52, and the resistors 74a and 78a have a value of 10Q. Thus, the output block 7A produces between the terminals 72a and 73a of the output socket 71a a differential signal equal to that present on the input terminal of the circuit 70a and a double amplitude. Output block 7B is a circuit for producing a differential output signal at terminals 72b and 73b of XLR socket 71b from the signal at input 701b of operational amplifier 70b; As already indicated, the circuit of this output block 7B is identical in all respects, both in its mounting and in its operation, to the output block 7A described above for processing the signal 701a. Thus, the invention described above makes it possible to propose a simple and economical portable audio-sound module 100, offering the possibility to a musician or a "DJ" operator to listen, independently or in combination, depending on the position the contactor of the orientation block 6, the sound it produces and a return sound, by sending these sound sources back to the two earphones of the same listening equipment such as a headset or INTEL1-FR-1 TEXT REMOVAL CL / SL - 27 - wireless earpieces, which also makes it possible to limit its hearing fatigue by eliminating the need for a conventional "return" by loudspeakers. The audio-sound module 100 is for example contained in a housing, one of whose faces is provided with the selector. According to an embodiment not shown, the selector can be remote and be presented for example in the form of a controller connected to the box wired or wave. In the example described above, the audio module 100 according to the invention comprises two processing channels distinguished by the letters A and B this corresponds to the right / left perception of the stereo. The output block 7A was assigned to the XLR input channel 4A and the output block 7B to the XLR input channel 4B. For all positions of the contactor, the passage of a configuration according to Figure 7A to a configuration according to Figure 7B causes a reversal of the restitution between the right ear (channel A) and the left ear (channel B). Maneuvering the contactor allows you to choose whether to restore the two sources in monophony or the two sources in stereo, mixed on both ears or on one.

Possibilities of industrial application Examples of use and audio installations 200 according to the invention are described hereinafter with reference to FIGS. 2 to 5. With reference to FIG. 2, the audio installation 200 comprises a module audio-phonic 100 provided with a selector 110 coupled to the contactor of the sorting block 5A, 5B. In this example, the audio installation 200 also comprises three plates 111, 112, for example disc or CD decks, an amplifier 104 and loudspeakers 102 only one of which is shown. Two plates 111 are connected to a mixer 103 capable of mixing the signals coming from these plates 111 to combine them and / or to succeed one signal to another. The mixer 103 is connected to an amplifier, itself connected to the loudspeaker 102 in order to broadcast the sound for example in a theater, a discotheque. The mixer 103 is also connected to the first input 40a, 40b of the audio-sound module 100 to which it provides a balanced line level stereophonic input signal (signal S). The third plate 112 provides an asymmetrical signal on the second input 30 of the audio-sound module 100. This audio installation 200 also comprises a headset 108 provided with two earphones and carried by an operator 106. The output of the audio-sound module 100 s As with the configuration of FIG. 2, the number of plates 111 connected to the mixer 103 can of course be greater. In this configuration, the operator 106 can benefit from the output signals respectively from the mixer 103 and the deck 112. Thus, in a first position of the selector 110, the operator 106 can receive: at its right ear, the sound from the decks 111 currently broadcasting music, for example in a room, through the amplifier 104 and the speaker 102, - at his left ear, the its sound coming from the plate 112 by means of which it can prepare, in masked time, the music which it will diffuse later. This plate 112 can also be connected to another amp itself connected to another speaker. INTEL1-FR-1 TEXT REMOVAL CL / SL 2957476 - 29 - In a second position of the selector 110, the operator 106 can receive, at its right and left ears, the inverted sounds relative to the first position of the selector 110 In a third position of the selector 110, the operator 106 can receive: at a first ear, the sound coming from its turntable 112, at a second ear, the sound coming from the mixing of the turntables 111 and its plate 112.

In another mode of use not shown, the plate 112 is connected to the amplifier 114, itself connected to the speaker 102. Thus, the speaker 102 simultaneously diffuses the sound of the plate 112 and that of the plates 11 In this case, thanks to the audio module 100, the operator 106 can isolate in one ear the fruit of his individual performance and in the other ear listen to the overall performance, mixing sounds 20 from the plates 111 managed for example by d Other operators and its own turntable 112. According to an alternative embodiment not shown, the plates 111 may be replaced for example by one of the instruments producing a sound of electronic origin 25 recoverable without the use of a microphone, for example a synthesizer. Similarly, the plates 111 may be replaced by complementary mixing tables, each mixer being managed by an operator.

The audio-phonic installation 200 of FIG. 3 is substantially similar to that of FIG. 2. It differs in that there are only two plates 111, both connected to the mixing desk. 103. The third stage is here replaced by a microphone 105 capable of transmitting to the audio-sound module 100, via the second input 301, the sound signal that he captures in the room. To do this, the microphone 105 is connected to the audio-sound module 100 via a mixer (not shown) for supplying a line-level signal to the input of the audio-sound module 100. In this configuration, the operator 106 can benefit, in a first position of the selector 110: - at the level of his right ear, the sound from the microphone 105 corresponding to what is actually heard in the room, the level of his left ear the sound from the mixer 103 corresponding to the theoretical sound 15 emitted by the plates 111. Comparing the theoretical sound to the real sound, the operator 106 can thus refine its settings. The position of the selector 110 may be modified as previously described.

With reference to FIG. 4, the audio installation 200 comprises an audio-sound module 100 provided with a selector 110 coupled to the contactor of the sorting block 5A, 5B. In this example, the audio installation 200 also includes two microphones 107 arranged so as to capture the best sound produced by the instruments of an orchestra or a group of musicians. The microphones 107 are connected to the first input 40a, 40b of the audio-sound module 100 via a mixer (not shown), to which they provide a symmetrical line level stereo input signal ( input signal S). The second input 30 of the audio module 100 is connected to an instrument 113 producing a recoverable electronic sound without the use of a microphone, for example a synthesizer. This instrument 113 is for example used by the operator 106 itself. The number of microphones 107 connected to the mixer 103 can of course be greater. In this configuration, the operator 106 can benefit, in a first position of the selector 110: at his right ear, the sound from the set of instruments 109 of the group of musicians as perceived in the room, 10 - at the level of his left ear, the sound from his instrument 113. The user can thus isolate his performance of the general performance and more easily adjust the way he plays or the settings of his instrument 113. The position of the selector 110 can be modified as previously described.

The audio-phonic installation 200 of FIG. 5 corresponds to a combination of those of FIGS. 1 and 4.

In this example, the first input 40a, 40b of the audio-sound module 100 is connected to a mixer 103 itself connected to four microphones 107, each microphone 107 picking up the sound emitted by one of the instruments of a group of musicians. . The number of microphones 107 connected to the mixer 103 can of course be greater. The second input 30 is connected to a plate 112 or a microphone 105 for example used by a singer (not shown). In this configuration, the operator 106 can benefit, in a first position of the selector 110: at its right ear, the sound from the set of instruments 109 of the group of musicians, INTEL1-FR-1 TEXTE DEPOSE CL / SL 2957476 - 32 - at his left ear, the sound coming from the plate 112 or the microphone 105. The user can thus isolate the sound coming from the turntable 112 or that of the singer, from the general performance, and perform easier settings. The position of the selector 110 may be modified as previously described.

The audio-sound module 100 and the audio installation 200 according to the invention can advantageously be used by any musician or operator to listen independently or in combination, one or more sound sources. The invention therefore makes it possible, on the one hand, to make the operator benefit from so-called "ear 15 monitoring" technology, which avoids repeated use of feedback circuits, a use that is detrimental to his hearing. In addition, these returns are expensive to produce and require bulky equipment on stage especially when the operator performs his performance in the context of a concert for example. With the equipment according to the invention therefore reduces the noise pollution of multiple returns; and the operator can get all the sound information, which is needed, with a single headset.

The invention should not be considered as limited to the above description of the described embodiments. In particular, those skilled in the art can without difficulty modify the preferred embodiment, for example by increasing the number of differential or jack-type inputs, without departing from the scope of the present invention. INTEL1-FR-1 TEXT REMOVAL CL / SL

Claims (18)

REVENDICATIONS1. Audio-phonic module (100) for electronic selection of the modality of simultaneous listening of at least two sources (111, 109, 107, 112, 113, 105) of electronic signals corresponding to different sounds, said audio-phonic module (100) being adapted to receive a first input signal (S) from a first source (111, 109, 107) and a second input signal (E) from a second source (112, 113, 105) and restoring at least one output signal intended to be sent to a restitution material (108), characterized in that it comprises at least two output blocks (7A, 7B) each capable of restoring a first, second signal of separate output of the second, first output signal of the other output block (7B, 7A), at least one selector (110) operable between at least two positions in each of which said audio-sound module (100) is arranged to mix , at least in part, said first and second input signals (S, E), differently from a position to the other of said selector (110), and simultaneously rendering, separately for each of said output blocks (7A, 7B), first and second different output signals from one position to the other of said selector (110) . 2. audio-voice module (100) according to the preceding claim, characterized in that it is arranged so that said positions comprise at least: a first position in which said first output signal is formed by at least the first parts (S1). , El) of said first and second input signals (S) and (E) mixed, and said second output signal is formed by at least said second INTEL1-FR-1 TEXTE REMOVAL CL / SL-34 - parts (S2, E2) of said first and second mixed input (S) and (E) signals, a complementary position in which said first output signal is formed by at least said first portion (S1) of said first input signal (S) and said second output signal is formed by at least said first portion (S1) of said second input signal (E). 3. audio-voice module (100) according to claim 2, characterized in that it is arranged so that said complementary position is a second position in which said first output signal is formed by said first part (Si) of said first signal input signal (S) and said second output signal is formed by said first and second portions (E1, E2) of said second input signal (E) and said second portion (S2) of said first input signal (S) . 4. audio-voice module (100) according to claim 2, characterized in that it is arranged so that said complementary position is a third position in which said first output signal is formed by said first and second parts (S1, S2). ) of said first input signal (S) and said second output signal is formed by said first and second portions (E1, E2) of said second input signal (E). An audio-speech module (100) according to any one of claims 2 to 4, characterized in that said selector (110) is also operable in a fourth position in which said first output signal is formed by said first part ( El) of said second input signal (E), and said second output signal is formed by said first and second INTEL1-FR-1 TEXTE REMOVAL CL / SL 2957476 - 35 - parts (Si, S2) of said first signal of input (S) and said second portion (E2) of said second input signal (S). 5 6. Audio-phonic module (100) according to any one of the preceding claims, characterized in that it comprises at least two separate inputs (40a, 40b, 30) including at least a first input (40a, 40b) adapted to receiving the input of said first input signal (S) and a second input (30) adapted to receive the input of said second input signal (E). 7. Audio-phonic module (100) according to the preceding claim, characterized in that said first input (40a, 40b) comprises at least two terminals (402a, 403) of the XLR type adapted to receive the input of a first a stereophonic input signal (S) of symmetrical line level and in that said second input (30) comprises at least one symmetrical "jack" able to receive the input of a second input signal (E) of asymmetrical stereophonic line level. 8. audio-voice module (100) according to the preceding claim, characterized in that it is provided with at least one conversion block (4A, 4B) connected to said terminals (402a, 403) and arranged to ensure the conversion of said symmetrical line level stereophonic input signal (S) into a conventional non-differential signal. 30 9. audio-voice module (100) according to any one of the preceding claims, characterized in that said output blocks (7A, 7B) are arranged to transform a conventional signal into a differential signal. INTEL1-EN-1 TEXT REMOVAL CL / SL- 36 - 10. audio-voice module (100) according to claim 6, characterized in that it comprises at least one orientation block (6) provided between said first, second inputs (40a, 40b 30) and said output blocks ( 7A, 7B), said orientation block (6) being provided with at least one contactor coupled to said selector (110) and arranged to maneuver simultaneously, when said selector (110) is operated, a plurality of switches (60, 61, 62, 63) adapted to distribute said first and second input signals (S, E) between said output blocks (7A, 7B) according to said position of said selector (110). 11. audio-voice module (100) according to the preceding claim, characterized in that it comprises at least one sorting block (5A, 5B) provided between said first, second inputs (40a, 40b; 30) and said block orientation (6), said sorting block (5A, 5B) having at least as many removable jumpers (55a, 56a, 57a, 58a and 55b, 56b, 57b, 58b) as there are switches (60, 61, 62, 63) in said orientation block (6), some of said removable jumpers (55a, 56a, 57a, 58a and 55b, 56b, 57b, 58b) being removed before the implementation of said audio-phonic module ( 100) according to the choices of the operator (106) as to the audio-phonic transmission that he wishes to obtain on said rendering material (108). 12. Audio-phonic module (100) according to any one of the preceding claims, characterized in that it comprises at least one amplifier coupled to at least one of said output blocks (7A, 7B) for amplifying said first, second corresponding output signal. INTELI-EN-1 TEXT REMOVAL CL / SL- 37 - 13. Audio-phonic module (100) according to claim 6, characterized in that it comprises at least one switch coupled to said first input (40a, 40b) and operable to cause the disconnection of said first input (40a, 40b) receiving said first input signal (S). 14. audio-audio installation (200) intended to be managed by at least one operator (106) and comprising at least a first source (111, 109, 107) capable of transmitting a first input signal (S) and a second source (112, 113, 105) capable of transmitting a second input signal (E), a reproduction material (108) comprising at least a first and a second distinct element each capable of restoring at least one output signal, characterized in that it comprises at least one audio-sound module (100) according to any one of the preceding claims and arranged so that said first and second output signals restored by said first and second elements are different from a position of said selector (110) to another position. 15. audio-audio installation (200) according to the preceding claim, characterized in that said first source (111, 109, 107) is arranged to provide a first stereophonic input signal (S) symmetrical line level and in that said second source (112, 113, 105) is arranged to provide a second asymmetric line level stereophonic input signal (E). 16. audio-voice installation (200) according to any one of claims 14 or 15, characterized in that said first and second sources (111, 109, 107; 112, 113, 105) are chosen in INTEL1-FR-1 TEXTE DEPOSE CL / SL- 38 - the group comprising at least one stage (111, 112), a keyboard (113), an instrument producing an electronic sound that can be recovered without the use of a microphone, a mixing desk (103), a microphone-type receiver (105, 107), a musical instrument (109). 17. audio-voice installation (200) according to any one of claims 14 to 16, characterized in that it comprises at least one external rendering element (102) capable of transmitting a general signal, in that said first source is arranged so that said first input signal (S) corresponds to said general signal and in that said second source (112) is arranged so that said second input signal (E) corresponds to a signal different from said general signal. 18. audio-voice installation (200) according to the preceding claim, characterized in that said second source (112) is arranged so that said second input signal (E) corresponds to a sound intended to be broadcast in a delayed manner in the time. INTEL1-FR-1 TEXT REMOVAL CL / SL