WO2020143872A2 - Vorrichtung mit einem eingang und mit einem ausgang und mit einem effektgerät mit lautstärkeregulierten audiosignalen einer audiodatei - Google Patents
Vorrichtung mit einem eingang und mit einem ausgang und mit einem effektgerät mit lautstärkeregulierten audiosignalen einer audiodatei Download PDFInfo
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- WO2020143872A2 WO2020143872A2 PCT/DE2020/000003 DE2020000003W WO2020143872A2 WO 2020143872 A2 WO2020143872 A2 WO 2020143872A2 DE 2020000003 W DE2020000003 W DE 2020000003W WO 2020143872 A2 WO2020143872 A2 WO 2020143872A2
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Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/005—Control by a pilot signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers
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- 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
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
- H04S7/30—Control circuits for electronic adaptation of the sound field
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S1/00—Two-channel systems
- H04S1/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
- H04S2400/13—Aspects of volume control, not necessarily automatic, in stereophonic sound systems
Definitions
- the invention relates to a device according to the preamble of claim 1.
- an audio compressor is used as the effect device in order to make an audio signal sound as loud as possible by maximizing the loudness parallel to the level of the audio signal.
- the goal in US Pat. No. 4,249,042 A is to make a music title that has already been produced to a maximum volume sound even louder in a radio station.
- the peak levels of audio signals are cut (the so-called transients) in order to make the quieter parts of the sound appear louder.
- a low-pass filter at 17 kHz is provided in US 4,249,042 A, i.e. the audio signal is cut off to a certain extent from the frequency range between 17 kHz and 20 kHz.
- the frequency band at 15 kHz is raised by 4dB.
- a three-band compressor is used for this. If energy peaks occur in the middle band, the compressor regulates all three bands uniformly. If energy peaks occur either in the lower (below 150 Hz) or / and in the upper (above 6 kHz) frequency band, the three bands are each compressed differently. The bands are then individually adjusted, which is often accompanied by an audible pumping down of the sound, which is known to the radio listener.
- the loudspeakers / sound sources are usually located horizontally on the ceiling, but they can also be mounted vertically on walls or in mixed forms of the two.
- Speakers / sound sources as a restaurant with 70 square meters and a ceiling height of 3.90 meters.
- the surfaces of the rooms to be sounded also play a role in the choice of sound equipment to be used. Glass surfaces and right angles differ enormously in their sound effect from sound-absorbing surfaces, such as fabric and round corners. The person skilled in the art can therefore calculate and install a suitable sound system using the usual sound analysis methods.
- the sound system is often only designed to be able to play and sound appropriate emergency instructions loudly and clearly in an alarm situation, which is also reflected in the fact that music tracks fluctuate in volume and also with respect to one another. For example, a song that was produced in the 1970s is much quieter in its perceived loudness than a song that was produced in 2018. This is due to conventional loudness compression and maximization techniques, which are not conducive to pleasant background music.
- a desired full-coverage sound system is not achieved by using a large number of loudspeakers at too close a distance from each other, since these overlap in their sound and thus generate clumps of sound, which usually also contain time differences and phase shifts, both of which have a negative effect on the sound perception .
- the invention provides that, regardless of the content of the audio file or audio source, an input level is assigned to a set output level, the
- Input level is regulated to the output level.
- the basic idea of the invention is to equalize the volume of all contents of audio files or audio sources and thus also of all pieces of music, so that the music always has the same volume regardless of the musical genres (techno, classical, etc.). This also makes the different
- the device according to the invention therefore, has a classical piece of music whose audio signal has an input level of, for example, -24 dB exactly that
- the volumes, i.e. the output levels are preset in the effects unit and are based on experience with which the best possible
- the control can start from a selectable input level.
- the preset output levels are based on experience. The focus here is on the musical sense of hearing in the longer context of listening. Hardness
- volume control processes are avoided, as otherwise audible level jumps would result.
- the listener should not notice the control processes, but should feel that the audio content was produced as he hears it, despite the control processes.
- the default setting preferably provides a static linear range in the lower volume regions in order to generally make quiet content louder and then starts with a non-linear range in the upper volume regions so that the ever decreasing volume increase factor is preferably intercepted and dynamic up to the maximum level OdB can preferably be regulated in such a way that there are no level jumps above the maximum level of OdB. It is advantageous to switch a limiter after the volume control process.
- the type of processing of the input to the output level is preferably determined by dynamically regulating
- Attack controls the time from which the dynamic control volume control curve begins to work after the input level has exceeded the defined threshold from linearity to nonlinearity.
- Release regulates the time from which the dynamic limit
- Volume control curve stops working after the input level drops below the set threshold from non-linearity to linearity.
- a processor For control in the effects unit, i.e. For the regulation of an input level to a preset output level, a processor with appropriate software can be provided, which in turn contains an algorithm that is processed by the processor.
- the device according to the invention compensates for the dynamic fluctuations in the background music.
- the device according to the invention compares the dynamic both across several audio contents and within each audio content
- audio content maintains its basic sound quality with a dynamic optimized for listening in the background.
- the device according to the invention stabilizes the sound across all frequencies in such a way that the radiation behavior of sound sources is intensified.
- a sound source therefore emits a constant sound pressure, which is perceived on the hearing side as a larger radiation radius.
- This larger radiation radius of each sound source optimized by the device according to the invention makes it possible for the first time to install fewer sound sources in order to sound evenly over a surface.
- the device according to the invention optimizes any type of existing sound system without having to process its individual components and optimizes its sound in real time with the result of a significant increase in performance of the existing one
- the device according to the invention achieves that the volume of differently loud audio sources is adapted to one another in such a way that no too loud or too quiet audio sources occur.
- the volume behavior is changed by the device according to the invention in such a way that quiet and loud passages / sound contents become uniform
- Sound energy and its direction and contained spatiality are regulated in such a way that the sound contents are finely coordinated and their sound intensity is generally intensified.
- the result of the device according to the invention is also a sound field which can be perceived evenly and which can be realized without gaps even at low volume and a lower number of sound sources than in the prior art.
- An advantageous development of the invention provides that the effects device is an audio compressor.
- An audio compressor is used in audio technology as
- Control amplifier controls the volume of audio signals.
- Important parameters of a compressor are, for example, attack, release, threshold and gain.
- the music material is compressed by the audio compressor.
- the dynamic is reduced. Dynamic is the difference between the quietest and loudest sound in a piece of music.
- the use of a compressor mostly aims to significantly increase the loudness of the audio signal.
- the audio compressor as an effect device in the device according to the invention is also a volume regulator, which, however, regulates an input level to a preset output level. For this, the audio compressor is considered a
- Dynamic processor designed with appropriate software, the software in turn containing an algorithm that is processed by the processor.
- the advantage of using an audio compressor is that it has the option of freely designing a control curve, ie the so-called characteristic curve.
- This characteristic curve regulates the ratio of input to output level in the entire dynamic range and thus this ratio can be adjusted very precisely across all dynamic levels. Since the architecture of this characteristic curve can be linear or non-linear, static or dynamic, for example, it offers the possibility of very finely and individually adjusting the entire dynamic range of audio material, depending on the desired tonal goal.
- the audio compressor is very close to the design possibilities of a by freely assigning input and output levels using characteristic curves and fine-tuning the control thresholds and times using, for example, the attack, release and hold control processes
- the invention also makes it possible to match the volume of several audio contents that are heard in context with one another without having to accept any sound losses. Sound loss occurs with audio content especially when audio compression is aimed at maximizing loudness. In order to maximize the loudness of audio material, the audio material must be extremely compressed while at the same time cutting the peak level, which is usually the
- Transients for example the stroke of a drum, included.
- the output level of the signal of the audio file is preferably a value of a non-linear characteristic curve obtained by measured values, which is a uniform one on the hearing side
- Volume harmonization supports by preferably having a so-called soft-knee characteristic.
- a soft-knee characteristic sets at a certain level
- volume increase in order to generally make quiet content louder and then starts with a non-linear characteristic curve in the upper volume regions so that the ever decreasing factor of the volume increase can be intercepted and dynamically regulated up to the maximum level OdB, taking into account the fact that there is none
- the audio compressor works with the non-linear characteristic.
- a linear characteristic it is characterized by the fact that it has a defined threshold / operating point, ie the threshold from which the control process begins. From this threshold, it is advantageous to use a non-linear area with the soft-knee characteristic.
- the soft knee characteristic starts at the threshold with a soft, curved control curve, which means that Volume control is gently implemented within the device according to the invention.
- the use of long control times for the compression parameters attack, ie the response time of the compressor and release, ie the return time of the compressor, and the use of a hold parameter are also advantageous for this purpose. The hold is the time after the threshold is undershot until the release process is initiated.
- a limiter can be connected behind the effects unit.
- a further advantageous development of the invention therefore provides that a limiter is arranged between an output of the device and the effect device and is connected to the output and the effect device.
- the limiter also preferably has a threshold at which the control process begins.
- the effect of this control process is much higher than, for example, an upstream compressor as an effect device, since the limiter should only intercept the peak levels, but should not further influence the sound as such.
- the control curve of the limiter can break under the preferred but not exclusive use of a hard-knee characteristic at -7dB and is then guided to a level point below the OdB limit with a head room.
- the rise and fall times of the limiter attack, release, hold
- a practicable variant of the invention provides that between an input of the
- a Leveier i.e. a further effects device for processing the volume of the audio signal present at the input is arranged, which is connected to the input and the effects device.
- the Leveier ensures that overloads cannot occur if, for example, the audio source connected to the input has too high a volume control and thus exceeds the permissible input peak levels of the device.
- the use of a spatializer is advantageous in order to create a more spacious sound stage during sound events.
- the sound stage is, for example, the sound field that forms between two loudspeakers when listening to audio in stereo.
- the aim of a spatializer is to expand this sound stage in its sound directions. That means: the sound should go beyond the speakers on the left and right. In a normal stereo field, the speakers are the left and right outer borders of the sound field. For example, if you are dealing with very small speaker systems, it makes sense to expand the sound field, as this makes the small speaker system sound as if the speakers are positioned further apart.
- Spatializers can also pull the sound field upwards, for example, and spatially expand it in the direction of the listener who is in front of the speakers. This is known as the so-called “virtual surround” effect.
- the Spatializer extends the sound stage by adding and subtracting the input channels in a certain relationship to each other, so that another
- a spatializer is preferably connected downstream in the effect device, i.e. between the exit of the
- Sound optimization unit arranged a spatializer, which with the output
- a filter and effects unit is connected.
- Arranging a filter behind the spatializer is advantageous.
- the sound image can be adjusted in its frequency image and, if necessary, can be provided with effects, such as reverb and echo effects, in order to intensify the processed sound events in their sound.
- This filter can work manually or automatically and
- Another practical variant of the invention therefore provides that a filter is arranged between the output of the device and the spatalizer, which filter is connected to the output and the spatalizer.
- a Leveier can preferably also be connected downstream of the filter in order to adjust the output level of the device according to the invention.
- a further advantageous development of the invention provides that a sensor is connected to the effects device, with the effects device being assigned a control device which controls the effects device and data and / or signals from the sensor processed.
- Speed sensor for example, can be used in a conventional manner
- Detect speeds and their changes in a motor vehicle and convert the data determined in this way into a signal in a conventional manner, which signal is sent to a control device that is part of the effect device.
- the detected data are recorded in a processor of the control device, which is embedded in an effects device circuit Sensor data processed.
- the processor is set up in such a way that the processor controls the effect device circuit as a function of the detected speeds, ie the processor works an algorithm of a
- each input level at the input of the effects device is assigned to a preset output level at the output of the effects device, depending on the detected speeds, the input level being regulated to the output level.
- the volume of the volume-controlled audio signals in the effects device can be increased with increasing speed.
- the effects device can also have a crossfader, with the crossfader being assigned a control device which controls the crossfader and processes data and / or signals from the sensor.
- a processor controls the crossfader here, too, in that the crossfader as a mixing unit can occupy two channels in the effects unit with different volume levels, i.e. the crossfader fades two audio channels into each other so that the volume or signal intensity of both channels can change.
- the crossfader is in a position, the signal intensity of the first channel can be 100 to 0 in relation to the second channel.
- both channels are equally loud.
- the channel in the effects unit circuit i.e.
- the channel which has the stereo signal volume-controlled by the effects unit and preferably a bypass channel, which is also located in the effects unit, are provided. Both channels preferably have the same input signal that corresponds to the input signal at the input of the effects device.
- the processor is set up in such a way that the processor controls the crossfader as a function of the detected speeds, i.e. the processor processes an algorithm of a corresponding software in such a way that, depending on the speed, the volume of the input signal of the effects device either increases or decreases in the channel in the effects device circuit or in the unregulated bypass channel.
- the device according to the invention can be arranged between at least one audio source and at least one sound system. Any type of audio source and any type of sound system, such as an active speaker, can be used.
- the type of connection is freely selectable, for example whether it is a
- a method for sound improvement in a room in which the input level of an audio signal of an audio file or audio source in an effects device is regulated to output level, is the subject of claim 19. The method is thereby
- a preset output level of the audio signal is assigned to an input level of the audio signal, regardless of the content of the audio file or the audio source, the input level being regulated to the output level.
- FIG. 1a shows a device according to the invention
- FIG. 1b shows the characteristic curve of an audio compressor of a device from FIG. 1;
- Fig. 3 shows the time course of volume-controlled according to the invention
- Audio signals and non-volume controlled audio signals are Audio signals and non-volume controlled audio signals
- FIG. 4 shows the front of the device according to the invention from FIG. 1;
- Figure 1a shows a device according to the invention, which is provided with the reference numeral 100 and is in the form of a portable box-shaped container.
- the device 100 has an effects device which is integrated in the device 100 and is present as an audio compressor 10 in the embodiment shown in FIG.
- the rear of the device 100 has audio inputs 11, 12 and audio outputs 13, 14 for audio signals.
- the audio inputs 11, 12 and Audio outputs 13, 14 are connected to the audio compressor 10 via signal lines 11a, 12a, 13a, 14a which run within the device.
- the audio inputs 11, 12 are two unbalanced RCA sockets which form audio inputs for a left and right audio channel.
- the audio outputs 13, 14 are the corresponding unbalanced audio outputs and are available as unbalanced RCA sockets.
- the device 100 is provided on its rear side, as FIG. 1a further clarifies, with symmetrical audio inputs 15, 16 and symmetrical audio outputs 17, 18, which likewise run with the device via signal lines running within the device 100, but not shown in FIG. 1a 100 are connected.
- the audio inputs and outputs 15, 16, 17, 18 are XLR / 6.3mm
- the device 100 has the socket 19 for the power supply.
- the power supply in the device 100 is designed as a 5V USB connection.
- the audio compressor 10 fulfills the function of a volume regulator.
- the input levels of the audio signals of an audio file which have entered the audio compressor 10 via the signal lines 11a, 12a are regulated to output levels which reach the audio outputs 13, 14 of the device 100 via the signal lines 13a, 14a .
- each input level is assigned to a preset output level, the input level being regulated to the output level.
- the audio compressor 10 is designed as a dynamic processor with corresponding software, the software in turn containing an algorithm that is processed by the processor.
- volume i.e. the output levels in the audio compressor 10 are preset and based on empirical values, which in turn are values of a recorded characteristic. Such a characteristic curve is shown in FIG. 1b.
- Figure 1 b shows a characteristic curve 24, which is composed of a non-linear region 25 and a linear region 20, the ordinate axis 21 with values of
- Output level and the abscissa axis 22 is provided with values of the input level of audio signals of an audio file.
- the characteristic curve 23 in FIG. 1 b shows a characteristic curve of audio signals that are not regulated by the audio compressor 10.
- the presettings of the output levels manifesting in the characteristic curve 24 provide for a linear volume increase in the lower volume regions, ie in the linear region 20, in order to generally make quiet content louder and then apply non-linearly in the upper volume regions , so that the ever decreasing factor of the volume increase can be intercepted up to the maximum level OdB and controlled dynamically.
- the effect produced in this way is shown in FIGS. 2a to 2c.
- the sound sources 26 shown in FIG. 2a which have a cone-shaped radiation characteristic, are installed in a number and type depending on the surface to be exposed, in so-called grids or free of patterns and structures.
- the aim of these installations is not to produce the sound overlaps 30 shown in FIG. 2b between the sound sources 26, so that they do not add up to one another in terms of their volume or produce unwanted audible transit time and phase differences, nor the sound sources 26, as shown in FIG. 2a. to position too far apart so that no sound / sound holes 27 arise. Nonetheless, there is too little coverage of the sound to be supplied by too few
- the device 100 from FIG. 1 stabilizes the sound of an audio signal across all frequencies, so that the radiation behavior of the sound sources is intensified.
- a sound source thus emits a constant sound pressure, which is perceived on the hearing side as a larger radiation radius 31, as shown in FIG. 2c. Due to the larger radiation radius 31 of each sound source 26 optimized by the device 100, it is possible for the first time to install fewer sound sources 26 in order to sound evenly over a surface.
- FIG. 3 shows the course of an audio signal, the amplitude axis being provided with the reference symbol 32 and the time axis with the reference symbol 33.
- Transients 34 are a short, percussive sound with a high level at the beginning of a sound event.
- the transients 34 do not have to
- Transients 34 are important for maintaining the sound quality of the sound event, since it is an important sound component, namely the characteristic start of a sound event, such as the stroke of a drum, the plucking sound of a violin or contrabass string.
- the device 100 from FIG. 1a achieves a high quality
- Sound result by raising the too quiet transients 34 in their volume together with the rest of the sound event, but not changing their shape, which is expressed by the waveform 35 shown in FIG. 3, with a region 36 of the audio signals which already have an optimal volume, are not edited and thus alienated, ie unprocessed audio signals, which are shown in the two lower courses of the audio signals in FIG. 3, and the audio signals regulated by the device 100, which are shown in the two upper courses of the audio signals in FIG. 3, have the same waveform in a region 36, in which already unprocessed audio signals have an optimal volume.
- FIG. 4 shows the front side of the device 100 from FIG. 1b, which has a switch unit 37, which has at least one audio input signal present on mono or
- a switch 38 on the device 100 which is a bypass switch that switches the device 100 active (bypass off) or inactive (bypass on) in order to compare the unprocessed to the processed audio input signal in Enable real time.
- the optical indicator 39 indicates whether the device 100 is in the bypass on or bypass off mode.
- FIG. 4 further clarifies, there are further optical indicators 40, 41, 42, 43 on the device 100 which indicate a possible overriding of an input level of an audio signal.
- the output level controller 45 regulates the output level of an input level regulated in the effect device 10, so that no overloads occur at the input of a sound system, not shown in FIG.
- the device 100 shown in FIG. 4 also has a wireless communication that functions as
- Bluetooth connection 46 is formed.
- FIGS. 5a, 5b and 6 show different possibilities for connecting the device 100 from FIG. 1a with other components of an audio system.
- FIG. 5 a shows the connection variant between a number of audio sources 48 of an arrangement 47 of these audio sources 48, which are connected to the audio inputs 51 of the device 100.
- FIG. 5b shows the connection variant between the device 100 with several audio Compressors 53 and a number of sound systems 49, an arrangement 50 of these sound systems with their audio inputs 52.
- FIG. 6 shows the arrangement of a number of compressors 53 of a device 100 from FIG. 1, the volume-regulated audio signals of which are mixed together in a mixing unit 55 before they are then fed as a mixed signal into at least one audio input of a sound system 49.
- the mixing unit 55 is a device in which a number A of audio input signals has a number B of
- Audio output signals are mixed together.
- Mixing units of this type are particularly common in music studios, in which several audio sources, such as musical instruments, are downmixed to one stereo source, that is to say to two channels.
- audio sources such as musical instruments
- Mixing units also have the option of integrating internal and external effects units to refine the sound result during the mixing process.
- FIG. 7 shows an embodiment of the method of the invention, which begins with an audio input signal 56 from at least one audio source, not shown in FIG. 7, which is applied to the device 100 according to the invention from FIG. 1, being regulated in its volume level by a Leveier 57, that it is due to
- the Leveier 57 can manually or automatically adjust the volume (s) of the audio source (s) for further processing by the
- Adjust compressor 10 If the volume level is adjusted by the Leveier 57, the signal is passed on to the compressor 10, which is followed by a limiter (not shown in FIG. 7). After the audio signal 23 has passed the limiter, the audio input signal 23 reaches the spatializer 58 and then a filter & effect unit 59I.
- the sound image can be adjusted in its frequency image and, if necessary, can be provided with effects, such as reverb and echo effects, around the processed ones
- This filter & effect unit 59 works manually or automatically and is based on analog or digital techniques. After the filter & effect unit 59, the audio input signal 56 passes before it to the
- Audio output signal 61 is the downstream output level 60.
- an effects device can be connected to a sensor 63, which is, for example, a speed sensor, which in turn in the embodiment of the invention shown in FIG. 7 is outside the one described in FIG. 7
- the sensor 63 is connected to the compressor 10.
- the sensor 63 detects speeds and their changes in a motor vehicle, which is not shown in FIG. 7, and in a conventional manner converts the data determined in this way into a signal, which is sent to a control device, likewise not shown in FIG. 7, which is part of the compressor 10 is.
- the recorded data of the sensor 63 are processed in a processor of the control device, which is embedded in the effect device circuit in the form of the compressor circuit 64.
- the processor is set up in such a way that the processor controls the compressor circuit 64 as a function of the detected speeds, that is to say the processor processes an algorithm of corresponding software in such a way that each input level at the input of the compressor 10 is independent of the content of an audio file or audio source preset output level at the output of the compressor 10 is assigned, depending on the detected speeds, the input level being regulated to the output level.
- the volume of the volume-regulated audio signals in the compressor 10 increases with an increasing speed measured by the sensor 63.
- the sensor 63 is connected to the crossfader 65 of the compressor 10.
- the processor also controls the crossfader 65 in that the crossfader 65 as a mixer can occupy two channels in the compressor 10 with different volume levels, i.e. the crossfader 65 fades two audio channels into one another, so that the volume or signal intensities of both channels can change.
- the crossfader 65 is in a position, the signal intensity of the first channel can be 100 to 0 in relation to the second channel.
- both channels are equally loud.
- the channel in the compressor circuit 64 i.e.
- the processor is set up in such a way that the processor controls the crossfader 65 as a function of the detected speeds, i.e. the processor processes an algorithm of a corresponding software in such a way that, depending on the speed, the volume of the input signal of the compressor 10 either increases or decreases in the channel in the compressor circuit 64 or in the unregulated bypass channel 66.
- the downstream limiter from FIG. 7 also works with a characteristic curve 62 which is shown in FIG. 8, the axes in FIG. 8 corresponding to the ordinate and abscissa axes from FIG. 1b.
- the limiter has a threshold parameter 63, from which the control process begins. The effect of this control process is higher than that of the upstream compressor 10, since the limiter should only intercept the peak levels, but should not further influence the sound as such.
- the rise and fall times of the limiter attack, release, hold) are selected so that no pumping occurs, but the control times are not too long, so that the limiter can develop its effect to protect against possibly occurring peak levels.
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Abstract
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Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202080008112.5A CN113348624A (zh) | 2019-01-10 | 2020-01-10 | 具有输入端和输出端并且具有带有音频文件的经音量调节的音频信号的效果器的装置 |
| JP2021533249A JP7536763B2 (ja) | 2019-01-10 | 2020-01-10 | 入力部と出力部と音声ファイルの音量調整された音声信号を有するエフェクタとを備えた装置 |
| EP20713155.8A EP3909132A2 (de) | 2019-01-10 | 2020-01-10 | Vorrichtung mit einem eingang und mit einem ausgang und mit einem effektgerät mit lautstärkeregulierten audiosignalen einer audiodatei |
| US17/421,968 US11877129B2 (en) | 2019-01-10 | 2020-01-10 | Apparatus having an input and an output and having an effect device with volume-regulated audio signals from an audio file |
| SG11202107088WA SG11202107088WA (en) | 2019-01-10 | 2020-01-10 | Apparatus having an input and an output and having an effect device with volume-regulated audio signals from an audio file |
| KR1020217024924A KR102922753B1 (ko) | 2019-01-10 | 2020-01-10 | 입력 및 출력을 갖추고 오디오 파일로부터의 볼륨-조절된 오디오 신호가 있는 이펙트 장치를 갖춘 장치 |
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|---|---|---|---|
| DE102019100551.5 | 2019-01-10 | ||
| DE102019100551.5A DE102019100551B3 (de) | 2019-01-10 | 2019-01-10 | Vorrichtung mit einem Eingang und mit einem Ausgang und mit einem Effektgerät mit lautstärkeregulierten Audiosignalen einer Audiodatei |
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| WO2020143872A2 true WO2020143872A2 (de) | 2020-07-16 |
| WO2020143872A3 WO2020143872A3 (de) | 2020-10-01 |
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| PCT/DE2020/000003 Ceased WO2020143872A2 (de) | 2019-01-10 | 2020-01-10 | Vorrichtung mit einem eingang und mit einem ausgang und mit einem effektgerät mit lautstärkeregulierten audiosignalen einer audiodatei |
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| US (1) | US11877129B2 (de) |
| EP (1) | EP3909132A2 (de) |
| JP (1) | JP7536763B2 (de) |
| KR (1) | KR102922753B1 (de) |
| CN (1) | CN113348624A (de) |
| DE (1) | DE102019100551B3 (de) |
| SG (1) | SG11202107088WA (de) |
| WO (1) | WO2020143872A2 (de) |
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| US11817114B2 (en) | 2019-12-09 | 2023-11-14 | Dolby Laboratories Licensing Corporation | Content and environmentally aware environmental noise compensation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249042A (en) | 1979-08-06 | 1981-02-03 | Orban Associates, Inc. | Multiband cross-coupled compressor with overshoot protection circuit |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3825851A (en) | 1972-01-19 | 1974-07-23 | Narco Scientific Ind | Audio threshold leveler with noise level suppressor |
| JPS60145714A (ja) * | 1984-01-06 | 1985-08-01 | Nissan Motor Co Ltd | 車両用音響装置 |
| JP3295440B2 (ja) * | 1991-09-10 | 2002-06-24 | パイオニア株式会社 | オーディオ装置における信号処理回路 |
| JPH06164279A (ja) * | 1992-11-25 | 1994-06-10 | Matsushita Electric Ind Co Ltd | 信号レベル圧縮装置 |
| KR20000008691A (ko) * | 1998-07-15 | 2000-02-15 | 구자홍 | 음성보상 장치 |
| JP2001103593A (ja) | 1999-09-29 | 2001-04-13 | Nippon Columbia Co Ltd | 信号レベル調整装置及び信号レベル調整方法 |
| JP2004214843A (ja) * | 2002-12-27 | 2004-07-29 | Alpine Electronics Inc | デジタルアンプ及びそのゲイン調整方法 |
| US7272235B2 (en) | 2003-06-26 | 2007-09-18 | Microsoft Corporation | Method and apparatus for audio normalization |
| DE102006001730A1 (de) | 2006-01-13 | 2007-07-19 | Robert Bosch Gmbh | Beschallungsanlage, Verfahren zur Verbesserung der Sprachqualität und/oder Verständlichkeit von Sprachdurchsagen sowie Computerprogramm |
| US9575715B2 (en) * | 2008-05-16 | 2017-02-21 | Adobe Systems Incorporated | Leveling audio signals |
| CN104080024B (zh) | 2013-03-26 | 2019-02-19 | 杜比实验室特许公司 | 音量校平器控制器和控制方法以及音频分类器 |
| US9578436B2 (en) | 2014-02-20 | 2017-02-21 | Bose Corporation | Content-aware audio modes |
| JP6323089B2 (ja) | 2014-03-14 | 2018-05-16 | ヤマハ株式会社 | レベル調整方法およびレベル調整装置 |
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2019
- 2019-01-10 DE DE102019100551.5A patent/DE102019100551B3/de active Active
-
2020
- 2020-01-10 CN CN202080008112.5A patent/CN113348624A/zh active Pending
- 2020-01-10 EP EP20713155.8A patent/EP3909132A2/de active Pending
- 2020-01-10 JP JP2021533249A patent/JP7536763B2/ja active Active
- 2020-01-10 US US17/421,968 patent/US11877129B2/en active Active
- 2020-01-10 SG SG11202107088WA patent/SG11202107088WA/en unknown
- 2020-01-10 WO PCT/DE2020/000003 patent/WO2020143872A2/de not_active Ceased
- 2020-01-10 KR KR1020217024924A patent/KR102922753B1/ko active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249042A (en) | 1979-08-06 | 1981-02-03 | Orban Associates, Inc. | Multiband cross-coupled compressor with overshoot protection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102922753B1 (ko) | 2026-02-04 |
| DE102019100551B3 (de) | 2020-07-16 |
| EP3909132A2 (de) | 2021-11-17 |
| SG11202107088WA (en) | 2021-07-29 |
| JP2022516699A (ja) | 2022-03-02 |
| CN113348624A (zh) | 2021-09-03 |
| KR20210113292A (ko) | 2021-09-15 |
| WO2020143872A3 (de) | 2020-10-01 |
| US11877129B2 (en) | 2024-01-16 |
| US20220095043A1 (en) | 2022-03-24 |
| JP7536763B2 (ja) | 2024-08-20 |
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