FR2705512A1 - Method of regulation and of control of the audio volume generated by a source of sounds of controlled amplitude and means for implementing it - Google Patents
Method of regulation and of control of the audio volume generated by a source of sounds of controlled amplitude and means for implementing it Download PDFInfo
- Publication number
- FR2705512A1 FR2705512A1 FR9306255A FR9306255A FR2705512A1 FR 2705512 A1 FR2705512 A1 FR 2705512A1 FR 9306255 A FR9306255 A FR 9306255A FR 9306255 A FR9306255 A FR 9306255A FR 2705512 A1 FR2705512 A1 FR 2705512A1
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- Prior art keywords
- sound volume
- source
- controlled
- detected
- volume
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 230000001276 controlling effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level
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- Circuit For Audible Band Transducer (AREA)
- Selective Calling Equipment (AREA)
Abstract
Description
L'invention se rapporte à un procédé de régulation et de commande du volume sonore généré par une source de sons d'amplitude commandée. The invention relates to a method for regulating and controlling the sound volume generated by a source of sounds of controlled amplitude.
Elle se rapporte également aux moyens pour la mise en oeuvre du procédé. It also relates to the means for implementing the method.
Dans un espace sonore, il existe principalement deux types de sources sonores. In a sound space, there are mainly two types of sound sources.
Le premier type de sources qu'on appellera sources commandées comprend les appareils producteurs de son tels les téléviseurs ou les amplificateurs des chaînes de reproduction de sons. The first type of sources which will be called controlled sources include sound producing devices such as televisions or amplifiers of sound reproduction chains.
Le second type de sources dites sources ambiantes comprend toutes les sources de son sur lesquels on ne peut agir directement par une commande. The second type of sources called ambient sources includes all the sources of sound on which one cannot act directly by a command.
I1 peut s'agir des bruits provenant de l'extérieur de l'espace qu'on veut contrôler ou des bruits engendrés par des conversations tenues à l'intérieur de cet espace, ces bruits de conversation étant généralement dominant par rapport aux bruits nuisibles. It can be noises coming from outside the space that we want to control or noises generated by conversations held inside this space, these conversation noises being generally dominant compared to harmful noises.
Le volume sonore produit par ces sources peut être trés variable et trés désagréable lorsque son volume sonore augmente fortement et/ou rapidement. The sound volume produced by these sources can be very variable and very unpleasant when its sound volume increases sharply and / or rapidly.
En conséquence, il est intéressant de pouvoir réguler le volume sonore d'un espace. Consequently, it is interesting to be able to regulate the sound volume of a space.
Pour effectuer cette régulation de volume
- on détecte le volume sonore provenant d'une source,
- on quantifie le volume sonore mesuré pour lui affecter une valeur,
- on compare cette valeur avec au moins une valeur de référence,
- on agit sur le volume sonore provenant des sources commandées de son de manière à corriger le volume sonore provenant de ces sources commandées.To perform this volume control
- the sound volume from a source is detected,
- the measured sound volume is quantified to assign it a value,
- this value is compared with at least one reference value,
- We act on the sound volume coming from the controlled sources of sound so as to correct the sound volume coming from these controlled sources.
Dans les procédés connus à ce jour (FR-A-2.397.750, FR-A2.373.915), on a toujours cherché à couvrir les sons dits ambiants provenant des sources dites ambiantes par les sons dits principaux provenant des sources commandées. In the methods known to date (FR-A-2,397,750, FR-A2,373,915), attempts have always been made to cover the so-called ambient sounds coming from the so-called ambient sources by the so-called main sounds coming from the controlled sources.
Pour cela, on a cherché à détecter uniquement les sons ambiants et, lorsque le volume de ces sons ambiants augmente, on amplifie le volume des sons principaux en agissant sur la commande d'amplification que chaque source commandée comporte. For this, we sought to detect only the ambient sounds and, when the volume of these ambient sounds increases, we amplify the volume of the main sounds by acting on the amplification control that each controlled source includes.
Certes, ces procédés permettent de couvrir les sons ambiants mais présentent toutefois de nombreux inconvénients. Admittedly, these methods make it possible to cover ambient sounds but nevertheless have numerous drawbacks.
En effet, lorsque des individus entretiennent une conversation dans cet espace contrôlé, les sons secondaires augmentent ce qui a, pour conséquence, de générer une commande de l'augmentation de l'amplification des sources commandées. Indeed, when individuals maintain a conversation in this controlled space, the secondary sounds increase which has, as a consequence, to generate a command of the increase in the amplification of the controlled sources.
Le volume sonore augmentant, les individus conversant élèvent la voix par reflex, ce qui entraîne une nouvelle amplification et ainsi de suite. As the volume increases, individuals conversing raise the voice by reflex, which leads to a new amplification and so on.
Il s'agit donc d'un fonctionnement sans fin sauf si sont prévues des limitations. It is therefore an endless operation unless there are limitations.
Egalement, on comprend qu'il est bien difficile d'isoler les sons ambiants des sons principaux. Also, we understand that it is very difficult to isolate the ambient sounds from the main sounds.
Ainsi, lorsque ces sons principaux sont relativement importants, ils sont interprétés en partie comme sons ambiants et sont comptabilisés dans la mesure du volume sonore détecté, ce qui provoque une correction non adaptée et qui n'est pas justifiée. Thus, when these main sounds are relatively large, they are interpreted in part as ambient sounds and are counted in the measurement of the detected sound volume, which causes an inappropriate correction which is not justified.
Un des résultats que l'invention vise à obtenir est un procédé du type précité qui remédie aux défauts évoqués plus haut. One of the results which the invention aims to obtain is a method of the aforementioned type which remedies the defects mentioned above.
A cet effet, l'invention a pour objet un tel procédé de régulation et de commande du volume sonore notamment caractérisé en ce qu'on commande la diminution du volume sonore produit par la source commandée lorsque le volume sonore de la source détectée augmente. To this end, the subject of the invention is such a method of regulating and controlling the sound volume, in particular characterized in that the reduction in the sound volume produced by the controlled source is controlled when the sound volume of the detected source increases.
Elle se rapporte également aux moyens en vue de la mise en oeuvre de ce procédé. It also relates to the means for the implementation of this process.
L'invention sera bien comprise à l'aide de la description ci-aprés faite à titre d'exemple non limitatif en regard du dessin ci-annexé qui représente schématiquement
- figure 1 : vue schématique d'un espace contrôlé,
- figure 2 : vue schématique d'un dispositif de régulation et de commande du volume sonore. The invention will be better understood with the aid of the description below given by way of nonlimiting example with regard to the attached drawing which schematically represents
- Figure 1: schematic view of a controlled space,
- Figure 2: schematic view of a device for regulating and controlling the sound volume.
En se reportant au dessin, on voit que dans l'espace 1 se trouve au moins une source commandée 2 de sons dits principaux et au moins une source de sons 3a, 3b dits ambiants. Referring to the drawing, it can be seen that in space 1 there is at least one controlled source 2 of so-called main sounds and at least one source of so-called ambient sounds 3a, 3b.
La source commandée 2 de sons est, par exemple, un appareil comprenant un amplificateur 4, un haut parleur 5 et un moyen de réglage 6 de l'amplificateur, lequel moyen de réglage est de préférence du type dit à télécommande et comprenant un récepteur 7 de commande d'amplification sans fil. The controlled source 2 of sounds is, for example, an apparatus comprising an amplifier 4, a loudspeaker 5 and an adjusting means 6 of the amplifier, which adjusting means is preferably of the so-called remote control type and comprising a receiver 7 wireless amplification control.
La source ambiante est, quant à elle, assimilée par exemple à des individus entretenant une conversation. The ambient source is, for its part, assimilated for example to individuals having a conversation.
Pour contrôler le volume sonore dans le dit espace 1, on fait appel à un dispositif 8 de contrôle et de régulation du volume sonore généré par la source commandée 2 avec lequel
- on détecte le volume provenant d'au moins une source,
- on quantifie le volume sonore détecté pour lui affecter une valeur représentative de son amplitude,
- on compare cette valeur avec au moins une valeur de référence, et
- on agit sur le volume sonore provenant d'au moins une des sources commandées de sons de manière à corriger le volume sonore provenant d'au moins une source commandée.To control the sound volume in said space 1, use is made of a device 8 for controlling and regulating the sound volume generated by the controlled source 2 with which
- the volume from at least one source is detected,
- the detected sound volume is quantified to assign it a value representative of its amplitude,
- this value is compared with at least one reference value, and
- It acts on the sound volume from at least one of the controlled sources of sounds so as to correct the sound volume from at least one controlled source.
Selon l'invention, on commande la diminution du volume sonore produit par la source commandée lorsque le volume sonore de la source détectée augmente. According to the invention, the reduction in the sound volume produced by the controlled source is controlled when the sound volume of the detected source increases.
Selon l'invention, on choisit la source commandée comme source de sons à mesurer. According to the invention, the controlled source is chosen as the source of sounds to be measured.
Selon l'invention, on choisit la source à mesurer comme étant la source ambiante. According to the invention, the source to be measured is chosen as being the ambient source.
Selon l'invention, on détecte le volume sonore global dans l'espace à contrôler de manière sensiblement omnidirectionnelle. According to the invention, the overall sound volume in the space to be checked is detected in a substantially omnidirectional manner.
Selon l'invention, on analyse le volume sonore détecté de manière à caractériser sa variation d'amplitude dans le temps puis, en fonction de la rapidité de cette évolution du volume sonore et d'une comparaison avec des consignes prédéterminées, on choisit une des solutions que sont la modification du volume sonore et l'attente d'une variation plus importante du volume. According to the invention, the detected sound volume is analyzed so as to characterize its variation in amplitude over time, then, as a function of the speed of this change in sound volume and of a comparison with predetermined instructions, one of the solutions which are the modification of the sound volume and the expectation of a greater variation of the volume.
Pour la mise en oeuvre du procédé, on fait appel à un dispositif 8 de commande et de régulation du volume sonore d'une source commandée qui comprend
- des moyens 9 pour détecter le volume sonore provenant d'une source,
- des moyens 10 pour quantifier le volume sonore détecté pour lui affecter une valeur représentative,
- des moyens 11 pour comparer cette valeur avec au moins une valeur de référence, et
- des moyens 12 pour agir sur le volume sonore provenant des sources commandées de son de manière à corriger le volume sonore provenant d'au moins une source commandée.For the implementation of the method, use is made of a device 8 for controlling and regulating the sound volume of a controlled source which comprises
means 9 for detecting the sound volume coming from a source,
means 10 for quantifying the detected sound volume to assign it a representative value,
means 11 for comparing this value with at least one reference value, and
- Means 12 for acting on the sound volume coming from controlled sources of sound so as to correct the sound volume coming from at least one controlled source.
Selon l'invention, outre les moyens 9, 10, 11, 12 précités, le dispositif comprend des moyens 13 pour diminuer le volume sonore provenant des sources commandées lorsque le volume sonore détecté augmente. According to the invention, in addition to the means 9, 10, 11, 12 mentioned above, the device comprises means 13 for reducing the sound volume coming from the controlled sources when the detected sound volume increases.
Avantageusement, ces moyens 9 à 12 comprennent des moyens 14 pour analyser dans le temps l'évolution du volume sonore mesuré. Advantageously, these means 9 to 12 include means 14 for analyzing over time the evolution of the measured sound volume.
Dans une forme préférée, les moyens pour diminuer le volume sonore comprennent en outre
- des moyens 15 pour élaborer un signal de commande et,
- des moyens 16 pour transmettre le signal de commande.In a preferred form, the means for reducing the sound volume further comprise
means 15 for developing a control signal and,
- Means 16 for transmitting the control signal.
Avantageusement, les moyens 16 pour transmettre le signal de commande sont des moyens de télécommande notamment à transmission sans fil et de préférence, il s'agit de moyens de transmission à infra-rouge. Advantageously, the means 16 for transmitting the control signal are remote control means, in particular with wireless transmission, and preferably, these are infrared transmission means.
Le dispositif de commande et de régulation du volume sonore comprend, par exemple
- un microphone 9 relié à un préamplificateur 10 suivi d'un comparateur de niveau 11,
- un dispositif émetteur et récepteur sans fil 13 permettant de générer des signaux de commande adaptés à la source commandée et notamment ceux du récepteur de télécommande que porte la dite source commandée. The sound volume control and regulation device comprises, for example
a microphone 9 connected to a preamplifier 10 followed by a level comparator 11,
a wireless transmitter and receiver device 13 making it possible to generate control signals adapted to the controlled source and in particular those of the remote control receiver carried by said controlled source.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9306255A FR2705512B1 (en) | 1993-05-18 | 1993-05-18 | Method of regulating and controlling the sound volume generated by a smile of sounds of controlled amplitude and means for the implementation. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9306255A FR2705512B1 (en) | 1993-05-18 | 1993-05-18 | Method of regulating and controlling the sound volume generated by a smile of sounds of controlled amplitude and means for the implementation. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2705512A1 true FR2705512A1 (en) | 1994-11-25 |
| FR2705512B1 FR2705512B1 (en) | 1995-06-23 |
Family
ID=9447440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9306255A Expired - Lifetime FR2705512B1 (en) | 1993-05-18 | 1993-05-18 | Method of regulating and controlling the sound volume generated by a smile of sounds of controlled amplitude and means for the implementation. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2705512B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63177604A (en) * | 1986-10-29 | 1988-07-21 | Mazda Motor Corp | Acoustic apparatus control unit for vehicle |
| US5204908A (en) * | 1990-09-26 | 1993-04-20 | Lectrosonics, Inc. | Sound system with rate controlled, variable attenuation |
-
1993
- 1993-05-18 FR FR9306255A patent/FR2705512B1/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63177604A (en) * | 1986-10-29 | 1988-07-21 | Mazda Motor Corp | Acoustic apparatus control unit for vehicle |
| US5204908A (en) * | 1990-09-26 | 1993-04-20 | Lectrosonics, Inc. | Sound system with rate controlled, variable attenuation |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 449 (E - 686) 25 November 1988 (1988-11-25) * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2705512B1 (en) | 1995-06-23 |
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