42results about "Manually-operated gain control" patented technology

A virtual meeting system is discussed herein. An online meeting application can provide a parallel virtual meeting between or among two or more participants of a main virtual meeting. The parallel virtual meeting permits two or more participants of the main virtual meeting to have a “smaller-sized” meeting in parallel with the main virtual speaker or presentation while still participating in the main virtual meeting. Therefore, the participants of the parallel virtual meeting do not have to connect via another device or application and can avoid disrupting the main virtual meeting. The parallel virtual meeting can permit two separate meetings, such as one meeting with all participants and one meeting with a subset of all the participants.

Described herein is an audio device with a microphone which may adapt the audio output volume of a speaker by either increasing or decreasing output volume based on an audio input volume from a user and a distance from the user to the audio device. The audio device may also adapt its output volume to lower the audio output based on detecting one or more interruptions including occupancy and acoustic sounds.

Provided are an image display apparatus and a method of controlling the same. The image display apparatus enabling voice recognition includes: a first voice inputter which receives a user-side audio signal; an audio outputter which outputs an audio signal processed by the image display apparatus; a first voice recognizer which recognizes the user-side audio signal received through the first voice inputter; and a controller which decreases a volume of the audio signal output through the audio outputter to a predetermined level if a voice recognition start command is received.

A device for adjusting the volume of an audio signal in an audio system of a motor vehicle is proposed, wherein the audio system has an input for receiving the audio signal from an input source and an output for outputting the audio signal, wherein the volume of the audio signal is adjustable by means of a control of the audio system, wherein the device has a control unit configured to determine an audio signal gain based on the current volume of the audio signal and based on a current speed of the motor vehicle, to determine a first volume increment factor based on the set volume, and to adjust the volume of the audio signal using the audio signal gain and the first volume increment factor.The control unit is further designed to determine a low-frequency amplification based on the current speed of the vehicle, to determine a second volume increment factor based on the set volume, and to adjust the low-frequency volume of the audio signal using the low-frequency amplification and the second volume increment factor, and / or the control unit is designed to adjust an output of the audio signal via the vehicle's structure-borne sound transducers based on the current speed of the vehicle using a structure-borne sound transducer parameter.

This document describes systems and methods for modifying music signals. An exemplary system for modifying music signals has at least one contactless switch. The contactless switch includes an actuator that translates and rotates, respectively, when a user pushes and turns the actuator. A sensor (e.g., a magnetic field sensor, an optical sensor, an AC inductive sensor, or other contactless sensing device) senses the position of the actuator, which may include a translational position and a rotational position. Modification of the music signal can be based on the position of the actuator. During operation of the contactless switch, no physical contact is required between the actuator and the sensor. Therefore, the force generated during pushing and turning the contactless switch is applied to the contactless switch, while the sensor and other components within the effects unit are unaffected by the force.

The present disclosure provides systems and methods for progressively transitioning the playback volume based on a background noise level. The device (800) may have a predetermined quantity of volume levels between a minimum volume and a maximum volume. The volume levels may be spaced by predetermined increments, such that there is a predefined difference between adjacent volume levels. A digital gain (102) may be used to adjust the volume level and an analog gain (106) may allow for the playback volume to be adjusted to an amount between adjacent volume levels. The playback volume may progressively transition within the predefined volume levels by an amount less than the predetermined difference between adjacent volume levels. This smaller amount may be the analog gain (106).

Systems and methods for a playback device outputting an audio alert from a network-enabled device include (i) while the playback device is playing back audio content, receiving an alert communication from the network-enabled device, the alert communication including (a) an audio notification identifier that identifies an audio notification and (b) a priority identifier that identifies a priority level of the audio notification; (ii) responsive to receiving the alert communication, adding the audio notification to a notification queue at a particular queue position, where the particular queue position of the audio notification in the notification queue is based on the priority level of the audio notification relative to other audio content in the notification queue; (iii) adjusting playback of the audio content for playing back the audio notification; and (iv) the playback device playing back the audio notification.

The present application relates to a display device and a processing method of the display device. In a multi-window mode, in response to a command of a user, the display device can display a volume control button in a designated window. In response to a control command inputted by the user on the basis of the volume control button, the control command indicating a first trend of adjusting the volume, when it is identified that both the designated window and another window are playing audio / videos, the display device can adjust the amplitude ratio of the audio / video in the designated window on the basis of the first trend, and can adjust the amplitude ratio of the audio / video in another window on the basis of a second trend opposite to the first trend.

Provided are an image display apparatus and a method of controlling the same. The image display apparatus enabling voice recognition includes: a first voice inputter which receives a user-side audio signal; an audio outputter which outputs an audio signal processed by the image display apparatus; a first voice recognizer which recognizes the user-side audio signal received through the first voice inputter; and a controller which decreases a volume of the audio signal output through the audio outputter to a predetermined level if a voice recognition start command is received.

A method of amplifying a signal is provided. The method includes: applying an analog gain to a signal, wherein an analog gain amount is applied with an offset lower than a set gain amount; applying a digital gain to the signal, wherein the amount of the applied digital gain is up to the offset; and converting the signal between digital and analog between the steps of applying the gain. The digital gain amount is adjustable based on the amplitude of the signal. The amplifier is further provided with an analog gain module, a digital gain module and a converter connected between the modules.

System comprises a headset and a host server. Headset comprises a wireless communication circuit for receiving content transmitted wirelessly to the headset. Headset comprises a right earphone and a left earphone, each comprising a speaker. Host server is in communication with the headset and is for wirelessly streaming the content to the wireless communication circuit. The host server is configured to prevent wireless streaming of prohibited content for playing by the headset based on a parental control applicable to the headset and a rating for the prohibited content.

An example computing system that maintains a playlist of media items for playback by one or more playback devices receives, from a first playback device, a request to play back the playlist and first operational data and also receives, from a second playback device, a request to play back the playlist and second operational data. The computing system provides the media items in the playlist to the first and second playback devices for substantially synchronous playback and, based on the first and second operational data, determines respective first and second advertisements. The computing system provides the first advertisement to the first playback device for playback during a given time slot designated for advertisements, and also provides the second advertisement to the second playback device for playback during the given time slot, such that the second playback device plays the second advertisement while the first playback device plays the first advertisement.

An integrated circuit (IC), comprising: a first input pin for receiving a first input signal; a first converter configured to convert the first input signal to a first output signal; a first gain stage configured to apply a first gain to the first output signal; gain update circuitry configured to: output a first external gain control signal to a first output pin of the IC; and subsequently output a first internal gain control signal to the first gain stage to update the first gain of the first gain stage, wherein output of the first internal gain control signal is delayed relative to output of the first external gain control signal by a first predetermined delay, the first predetermined delay to compensate for signal chain delay between the first input pin and the first gain stage.

Wireless-enabled loudspeaker includes a capacitive touch user interface. The loudspeaker may comprise at least one electroacoustic transducer, a processor in communication with the at least one electroacoustic transducer, and an exterior surface comprising a capacitive touch user interface that allows a user to control operation of the loudspeaker. The exterior surface acts a dielectric for the capacitive touch user interface. The loudspeaker may comprise a wireless transceiver circuit for receiving and transmitting wireless communication signals via a wireless network. The wireless transceiver circuit may receive wirelessly audio content from streaming audio content servers that are connected to the Internet. The capacitive touch user interface comprises a plurality of capacitive sense electrodes.

Embodiments described herein provide for detecting presence of an object in proximity to a playback device and responsively performing one or more operations. In an example implementation, a playback device detects, via a proximity detector of the playback device, presence of an object in proximity to the playback device. In response to detecting the presence of the object, the playback device performs one or more operations.

The object of the present invention is to provide an irradiance meter having an electronic circuit whose response speed or resolution does not depend on an AD converter or a DA converter. [Solution] The above problem can be solved by an irradiance meter characterized by comprising: a light-receiving element (photodiode) into which the light to be measured is incident; a current-voltage conversion circuit that converts the output current of the light-receiving element into a voltage; a sensitivity adjustment circuit that adjusts the output of the current-voltage conversion circuit; an amplifier that amplifies the output of the sensitivity adjustment circuit; an AD conversion circuit that converts the output of the amplifier into a digital signal and inputs it to a first arithmetic processing unit (first microcontroller of the display unit); and an analog signal output unit that outputs the output of the amplifier to the outside.

A method for setting a volume of an audio output device included in an audio system, an audio output device, an audio system and a computer-readable medium are provided. The method may comprises: acquiring, in response to the first audio output device and one or more second audio output devices being connected into an audio system, volume indication information for the first audio output device, wherein the volume indication information indicates a target volume value to be synchronized among audio output devices in the audio system; and setting the volume of the first audio output device, based at least on a relationship between the target volume value and an output volume threshold for the first audio output device.

The present disclosure provides for a togglable audio ducking device preferably with a mechanically triggered pressure-sensitive floor pad that detects pressure when a user's body weight is in the proximity of the microphone. The mechanically triggered pressure-sensitive floor pad may allow the user to effectively reduce ambient noise bleed into microphones without muting the microphone (i.e. audio ducking). In other embodiments, the togglable audio ducking device may be operated using a magnetic switch attached to a microphone stand, which is triggered when the microphone stand rotates in a particular direction to a certain degree.

To provide a voltage amplification circuit in which the input-output characteristic exhibits a linear relation passing through the origin and in which fine adjustment of gain can be easily performed, as well as a switching power supply device using the same and an initial setting method thereof.SOLUTION: A voltage amplification circuit 54(1) includes an operational amplifier 56(1), a fifth resistor 58(1) connected between a point P and a non-inverting input terminal, and a sixth resistor 60(1) connected between the non-inverting input terminal and a ground. The voltage amplification circuit includes a seventh resistor 62(1) connected between the inverting input terminal and an output terminal, an eighth resistor 64(1) having one end connected to the inverting input terminal, and a variable resistance circuit 66(1) connected between the eighth resistor 64(1) and a ground. The variable resistance circuit 66(1) performs arithmetic processing on the basis of an externally input digital signal to change a setting of an effective resistance value Rk of itself. The input-output characteristic of the voltage amplification circuit 54(1) exhibits a linear relation passing through the origin, and the slope (gain G) of the line can be adjusted by changing the setting of the effective resistance value Rk from the outside.SELECTED DRAWING: Figure 2

A method and apparatus for volume control of an electronic device is provided herein. During operation, a volume-control knob will increase a volume of sound output from a device in a substantially linear fashion (versus knob rotation angle) as a volumecontrol knob is rotated. Once the volume-control knob is rotated past a predetermined amount, a volume boost is activated, increasing the volume level in a non-linear fashion. More particularly, in one embodiment of the present invention, once the volume-control knob is rotated past the predetermined amount (e.g., 300 degrees), the volume will be increased instantaneously (e.g., by 25%).

A sound volume setting method includes receiving a correction instruction to correct a sound volume change characteristic for a sound volume change operation. The sound volume setting method also includes setting a reference value to a sound volume that is used at a time when the correction instruction is received, and generating a corrected sound volume change characteristic by correcting the sound volume change characteristic based on the reference value. The sound volume setting method also includes transmitting the corrected sound volume change characteristic.

To provide an equalizer circuit capable of shaping a multi-value PAM signal.SOLUTION: An equalizer circuit 600 comprises a variable gain equalizer circuit 610. A third transistor MN53 for gain adjustment is inserted between the source of a first transistor MN51 that configures an input differential pair of the variable gain equalizer circuit 610, and a first current source IB51. A fourth transistor MN54 for gain adjustment is inserted between the source of a second transistor MN52 that configures the input differential pair, and a second current source IB52. The gates of the third transistor MN53 and the fourth transistor MN54 are supplied with a first bias voltage Vb1 to be able to control the DC gain of the variable gain equalizer circuit 610.SELECTED DRAWING: Figure 2

The integrated circuit (IC) includes a first input pin for receiving a first input signal, a first converter configured to convert the first input signal to a first output signal, a first gain stage configured to apply a first gain to the first output signal, and a gain update circuit configured to output a first external gain control signal to a first output pin of the IC, and subsequently output a first internal gain control signal to the first gain stage to update a first gain of the first gain stage, wherein the output of the first internal gain control signal is delayed by a first predetermined delay with respect to the output of the first external gain control signal, the first predetermined delay being to compensate for a signal chain delay between the first input pin and the first gain stage.

A system for controlling the gain of an input signal in an audio signal amplifier. The system includes a user-operable gain control, and analog and digital circuit elements that together are configured to modify the gain of the input signal in response to the user-operable gain control.

An exemplary audio enhancement system substantially eliminates latency by returning audio input signals in amplified form directly in the analog domain to the source, thereby reducing signal degradation and removing redundancy from digital and analog audio transmission and processing architectures.

An amplifier may have a plurality of control sections in which each control section has a plurality of control knobs and a first control knob in each control section that has an off position. The first control knob in each control section clicks (audibly and / or mechanically) as it enters or exists the off position.

The invention relates to a device for adapting the volume of an audio signal in an audio system of a motor vehicle, comprising a control unit which is designed to determine an audio signal gain on the basis of a current volume of the audio signal and on the basis of a current speed of the motor vehicle, a first volume increment factor is determined based on the set volume, and the volume of the audio signal is adapted using the audio signal gain and the first volume increment factor. The control unit is further designed to determine a low-frequency gain on the basis of the current speed, to determine a second volume increment factor on the basis of the set volume, and to adapt the volume of the low frequency of the audio signal using the low-frequency gain and the second volume increment factor; and / or adapting the output of the audio signal via a solid-state sound transducer of the motor vehicle using solid-state sound transducer parameters on the basis of the current speed.