公开(公告)号：WO2016193033A1

公开(公告)日：2016-12-08

申请号：PCT/EP2016/061542

申请日：2016-05-23

Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Inventor： SCHARRER, Sebastian ,  UHLE, Christian ,  HELLMUTH, Oliver ,  LUVIZOTTO, André

IPC: H03G3/30

CPC classification number: H03G3/32 ,  H03G3/3005 ,  H03G3/3026

Abstract: Eine Vorrichtung zur Lautstärkenregulierung für zumindest zwei Audioquellen umfasst einen Lautheitsanalysator und einen Lautstärkenregler. Der Lautheitsanalysator ist ausgebildet, um ein Audiosignal der ersten und der zweiten der zwei Audioquellen über eine Zeitdauer zu analysieren, abhängig hiervon jeweils einen ersten und einen zweiten Lautheitswert zu ermitteln und diesen mit Zuordnung zu der ersten und der zweiten Audioquellen zu speichern. Der Lautstärkenregler ist ausgebildet, um das Audiosignal der aktuell gewählten ersten und/oder zweiten der zwei Audioquellen entsprechend dem entsprechenden ersten und/oder zweiten Lautheitswert anzupassen.

Abstract translation: 调节音量用于至少两个音频信号源的装置包括一个Lautheitsanalysator以及音量控制。 所述Lautheitsanalysator被配置为分析的音频信号中的第一和在一段时间的两个音频源响应所述第二于此以确定第二响度值和将其存储在关联与所述各自具有第一和第一和第二音频信号源。 音量控制被形成为调整的对应于相应的第一和/或第二响度值的两个音频源的当前选择的第一和/或第二音频信号。

公开(公告)号：WO2016172227A1

公开(公告)日：2016-10-27

申请号：PCT/US2016/028462

申请日：2016-04-20

Applicant: SONOS, INC.

Inventor： BIERBOWER, Chris ,  MANISKAS, Nicholas

IPC: G11B27/34 ,  H03G7/00 ,  H03G3/30

CPC classification number: G06F3/165 ,  G11B27/34 ,  H03G3/04 ,  H03G3/3026 ,  H03G7/002 ,  H03G7/005 ,  H04R2227/005

Abstract: An example playback device may store an active volume state variable in memory, where the active volume state variable corresponds to a current playback volume. The playback device may also store a volume limit state variable in memory, where the volume limit state variable corresponds to a playback volume limit of the playback device. The playback device may detect a command to begin playback of media from a given source and then select a startup playback volume to be one of the current playback volume and the playback volume limit based on the given source of the command to begin playback. The playback device may then play back media at the startup playback volume.

Abstract translation: 示例播放设备可以将活动卷状态变量存储在存储器中，其中活动卷状态变量对应于当前播放音量。 回放装置还可以在存储器中存储音量限制状态变量，其中音量限制状态变量对应于回放装置的回放音量限制。 播放装置可以检测从给定的源开始播放媒体的命令，然后基于给定的开始播放的命令源，将启动播放音量选择为当前播放音量和播放音量限制之一。 播放设备然后可以在启动回放音量下播放媒体。

公开(公告)号：WO2012134586A1

公开(公告)日：2012-10-04

申请号：PCT/US2011/067899

申请日：2011-12-29

Applicant: INTEL CORPORATION ,  MILLETT, Howard, D.

Inventor： MILLETT, Howard, D.

IPC: G06F1/32 ,  H03G5/16

CPC classification number: H03G3/3026

Abstract: Systems and methods of controlling output volume in mobile devices may include an apparatus having logic to detect a limited power delivery condition of a battery of a mobile platform. The logic may also transmit a hardware alert to an audio controller of the mobile platform in response to the limited power delivery condition, wherein the hardware alert is to instruct the audio controller to conduct a speaker volume reduction to an audible level. In one example, the logic enables the use of one or more high power speakers such as stereo integrated hands free speakers in the mobile device.

Abstract translation: 控制移动设备中的输出音量的系统和方法可以包括具有检测移动平台的电池的有限功率输送状况的逻辑的装置。 逻辑还可以响应于有限的功率传递条件向移动平台的音频控制器发送硬件警报，其中硬件警报是指示音频控制器将扬声器音量减小到可听到的水平。 在一个示例中，该逻辑使得能够在移动设备中使用一个或多个高功率扬声器，例如立体声集成的免提扬声器。

公开(公告)号：WO02045260A1

公开(公告)日：2002-06-06

申请号：PCT/SE2001/002647

申请日：2001-11-29

IPC: H03G3/30 ,  H03G3/20

CPC classification number: H03G3/3026

Abstract: The invention concerns an amplifier circuit which comprises an amplifier unit (210) arranged to receive an input signal, to influence the amplification of this input signal and to transmit an output signal. The amplifier circuit also comprises a first control unit (210) and a second control unit (220). These control units receive said output signal. Furthermore, the amplifier circuit comprises a selector unit (240) which is arranged to receive first and second control signals from the control units (210, 220). The selector unit (240) is arranged to control the amplification of the amplifier unit (201) in accordance with that one of said first and second control signals which gives the lowest amplification.

Abstract translation: 本发明涉及一种放大器电路，其包括布置成接收输入信号的放大器单元（210），以影响该输入信号的放大并传输输出信号。 放大器电路还包括第一控制单元（210）和第二控制单元（220）。 这些控制单元接收所述输出信号。 此外，放大器电路包括选择器单元（240），其被布置成从控制单元（210,220）接收第一和第二控制信号。 选择器单元（240）被布置为根据给出最低放大的所述第一和第二控制信号中的一个来控制放大器单元（201）的放大。

公开(公告)号：WO9808324A3

公开(公告)日：1998-06-25

申请号：PCT/US9714480

申请日：1997-08-18

Applicant: ADVANCED MICRO DEVICES INC

Inventor： DETTMER DAVID R

IPC: H03G3/00 ,  H03G3/30 ,  H04L5/00

CPC classification number: H03G3/3026 ,  H03G3/001

Abstract: A near full duplex portable handset speakerphone comprises: a microprocessor; a hands-free receiver register connected to the microprocessor; a hands-free transmit register connected to the microprocessor; a ROM having a speakerphone operation algorithm, the ROM connected to the microprocessor; a first analog-to-digital converter connected to the hands-free receiver register; a second analog-to-digital converter connected to the hands-free transmit register; a first programmable digital attenuator connected to the microprocessor and to a speaker; and a second programmable digital attenuator connected to the microprocessor and to a microphone, wherein near full duplex communication is achieved without digital signal processing. In another feature of the invention, the hands-free registers provide a digital representation of the speech volume in each direction to the microprocessor. The microprocessor monitors the speech signal levels, calculates digital volume comparisons in order to make speech gain decisions for optimal sound, and digitally adjusts the gains in the two speech paths to the upper half of their maximum values.

公开(公告)号：WO1991002406A1

公开(公告)日：1991-02-21

申请号：PCT/EP1990001127

申请日：1990-07-11

Applicant: DEUTSCHE THOMSON-BRANDT GMBH ,  ZUCKER, Friedhelm

Inventor： DEUTSCHE THOMSON-BRANDT GMBH

IPC: H03G03/20

CPC classification number: H03G3/3026 ,  G11B7/0941

Abstract: Automatic gain control, frequently abbreviated to AGC, is applied, for example, in radio receivers in order to control the maximum output level at a constant value independently of fluctuations in the receiver field strength. To obtain simple automatic gain control which requires no equalization, the input signal (S) to be amplified is fed via a controllable switch (SC) and a first low pass (TP1) to an amplifier (V) and via a second low pass (TP2) and an analog-digital converter (AD) to a microprocessor (MP) the output of which is connected to the input of a pulse width modulator (PM). The output of the pulse width modulator (PM) is connected to the control input of the controllable switch (SC). The microprocessor (MP) generates a control signal for the pulse width modulator (PM) in function of the digital values at the output of the analog-digital converter (AD); the pulse width modulator therefore modifies the pulse-width repetition rate of its output signal in function of the control signal. Application to automatic gain control.

Abstract translation: 自动增益控制（通常缩写为AGC）被应用于例如无线电接收机中，以便独立于接收机场强度的波动来将最大输出电平控制在恒定值。 为了获得不需要均衡的简单的自动增益控制，要被放大的输入信号（S）经由可控开关（SC）和第一低通（TP1）馈送到放大器（V）并经由第二低通 TP2）和模拟数字转换器（AD）连接到微处理器（MP），其输出端连接到脉冲宽度调制器（PM）的输入端。 脉冲宽度调制器（PM）的输出端连接到可控开关（SC）的控制输入端。 微处理器（MP）根据模拟数字转换器（AD）输出端的数字值产生脉冲宽度调制器（PM）的控制信号; 脉冲宽度调制器因此根据控制信号修改其输出信号的脉冲宽度重复率。 应用于自动增益控制。

公开(公告)号：WO2015131063A1

公开(公告)日：2015-09-03

申请号：PCT/US2015/018045

申请日：2015-02-27

Applicant: DTS, INC.

Inventor： MALAK, Fadi ,  KATSIANOS, Themis ,  JOT, Jean-Marc

IPC: H04S7/00

CPC classification number: H03G7/00 ,  G10L19/008 ,  H03G3/002 ,  H03G3/3026 ,  H04S7/30 ,  H04S2400/11 ,  H04S2400/13

Abstract: A method and apparatus for processing object-based audio signals is provided. The apparatus receives a plurality of object-based audio signals. Each object-based audio signal of the object-based audio signals includes audio waveform data and object metadata associated with the audio waveform data. The object metadata includes at least one of a loudness parameter or a power parameter associated with the audio waveform data. The apparatus determines a loudness metric based on the received object-based audio signals and based on the at least one of the loudness parameter or the power parameter for each object-based audio signal of the received object-based audio signals. In one configuration, the apparatus renders the received object-based audio signals to a set of output signals based on the determined loudness metric. In another configuration, the apparatus transmits (e.g., broadcast, file delivery, or streaming) the received object-based audio signals based on the determined loudness metric.

Abstract translation: 提供了一种用于处理基于对象的音频信号的方法和装置。 该装置接收多个基于对象的音频信号。 基于对象的音频信号的基于对象的音频信号包括与音频波形数据相关联的音频波形数据和对象元数据。 对象元数据包括与音频波形数据相关联的响度参数或功率参数中的至少一个。 该装置基于接收到的基于对象的音频信号，并且基于接收的基于对象的音频信号的每个基于对象的音频信号的响度参数或功率参数中的至少一个来确定响度度量。 在一种配置中，设备基于所确定的响度度量将所接收的基于对象的音频信号呈现为一组输出信号。 在另一配置中，设备基于所确定的响度度量来发送（例如，广播，文件传送或流传输）所接收的基于对象的音频信号。

公开(公告)号：WO2015117919A1

公开(公告)日：2015-08-13

申请号：PCT/EP2015/052058

申请日：2015-02-02

Applicant: TP VISION HOLDING B.V.

Inventor： VERHAEGHE, Jeroen, Daniël, Annick

IPC: H03G3/02

CPC classification number: G10L21/034 ,  G06F3/165 ,  G10L15/22 ,  G10L25/51 ,  H03G3/3026 ,  H04R2499/11

Abstract: A handheld device comprises a microphone (12) for converting speech into an audio signal. The device also comprises an audio signal amplifier (13) for amplifying the audio signal, and means (14) for adjusting the gain of the audio signal amplifier. The device further comprises means (15) for determining an orientation of the device with respect to a horizontal plane. The device is configured to adjust the gain of the audio signal amplifier in a dependence on the determined orientation of the device. The device is further configured to adjust the gain of the audio amplifier to a first value when the device is oriented essentially horizontal and to a second value when the device is oriented essentially vertical, the first value being higher than the second value.

Abstract translation: 手持设备包括用于将语音转换成音频信号的麦克风（12）。 该装置还包括用于放大音频信号的音频信号放大器（13），以及用于调节音频信号放大器的增益的装置（14）。 该装置还包括用于确定装置相对于水平面的取向的装置（15）。 该装置被配置为根据所确定的装置的取向来调节音频信号放大器的增益。 该装置还被配置为当该装置基本上是水平方向时将该音频放大器的增益调整到第一值，并且当该装置基本垂直定向时，该第一值高于该第二值。

公开(公告)号：WO2012146474A1

公开(公告)日：2012-11-01

申请号：PCT/EP2012/056198

申请日：2012-04-04

Applicant: ROBERT BOSCH GMBH ,  ROBERT BOSCH ENGINEERING AND BUSINESS SOLUTIONS LIMITED ,  MANJUNATH M S, Manjunath

Inventor： MANJUNATH M S, Manjunath

IPC: H03G3/30 ,  H03G3/34

CPC classification number: H03G3/3026 ,  H03G3/348

Abstract: The invention proposes a method to automatically control the volume of an infotainment device fitted in a vehicle, when an emergency event is detected. The emergency event may be provided by different components or electronic control units fitted into the vehicle and which communicate with the infotainment device. By controlling the volume of the infotainment device automatically when an emergency is detected, the invention helps in reducing the driver distraction. This provides safety to the driver as the driver can focus on the emergency event.

Abstract translation: 本发明提出了一种在检测到紧急事件时自动控制装配在车辆中的信息娱乐装置的音量的方法。 紧急事件可以由安装在车辆中并与信息娱乐装置通信的不同部件或电子控制单元提供。 通过在检测到紧急情况时自动控制信息娱乐设备的音量，本发明有助于减少司机分心。 这可以为司机提供安全性，因为驾驶员可以专注于紧急事件。

公开(公告)号：WO2005086801A2

公开(公告)日：2005-09-22

申请号：PCT/US2005/007531

申请日：2005-03-07

Applicant: ETYMOTIC RESEARCH, INC. ,  DUNN, William, F. ,  KILLION, Mead, C. ,  HAAPAPURO, Andrew J. ,  DRAMBAREAN, Viorel

Inventor： DUNN, William, F. ,  KILLION, Mead, C. ,  HAAPAPURO, Andrew J. ,  DRAMBAREAN, Viorel

IPC: H03G3/00

CPC classification number: H03G3/3026 ,  H04R25/407 ,  H04R25/554 ,  H04R25/558 ,  H04R2225/55 ,  H04R2430/01

Abstract: A method and system for enhancing speech intelligibility using wireless communication in portable, battery-powered and entirely user-supportable devices. The devices may be talker devices and receiver devices, where the audio signals input into the talker devices may be transmitted to the receiver devices to provide better quality audio to person using the receiver devices. The receiver devices may initiate and terminate communications with the talker devices. Additionally, the receiver devices may indicate to the talker devices the gain level the talker devices need to apply to the audio signals before sending them to the receiver devices.

Abstract translation: 一种用于在便携式，电池供电且完全用户可支持的设备中使用无线通信来增强语音可懂度的方法和系统。 设备可以是说话者设备和接收机设备，其中输入到讲话者设备中的音频信号可以被发送到接收机设备，以使用接收机设备向人们提供更好质量的音频。 接收机设备可以发起和终止与讲话者设备的通信。 此外，接收机设备可以向讲话者设备指示在发送给接收机设备之前，讲话者设备需要应用于音频信号的增益级别。