共找到 150 条与 dBFS 相关的标准，共 10 页
SJ/T 11180的本部分适用于消费级应用的音频和视听美利体育官网首页网址的数字音频特性的基本测量方法。数字音频特性的通用测量条件和测量方法见SJ/T 11180.1。本部分描述消费级应用美利体育官网首页网址的测量条件和测量方法。
Basic methods of measuring audio characteristics of digital audio parts of audio and audio-visual equipment Part 2: Consumer applications
This part of IEC 61606 deals with the basic measurement methods of a linear PCM signal for an audio part of personal computers. The common measuring conditions and methods are described in IEC 61606-1. Specific conditions and methods of measurement for personal computers are given in this standard.
Audio and audiovisual equipment - Digital audio parts - Basic measurements methods of audio characteristics - Part 4: Personal computer (IEC 61606-4:2005); German version EN 61606-4:2006
本标准规定了数字电视环绕声伴音、双音道伴音的电性能测量项目、测量条件和测量方法。 本标准适用于标准清晰度和高清晰度数字电视接收美利体育官网首页网址（数字电视接收机和数字电视接收器），是产品设计、生产、检验的主要依据。
Methods of measurement of surround audio for digital TV
本部分 IEC 61606 适用于专业用音频美利体育官网首页网址的基本测量方法。IEC 61606-1 中描述了消费类和类美利体育官网首页网址通用的定义、测量条件和方法。本标准包含适用于专业美利体育官网首页网址的定义、测量条件和方法的详细信息，这些与 IEC 61606-1 中描述的不同。本标准不包括以下内容的考虑：低质量音频美利体育官网首页网址的测量；低比特率音频美利体育官网首页网址（‘子带’或‘感知’编码美利体育官网首页网址）的测量；显著修改信号时间或频率特性的美利体育官网首页网址（如移调器或混响器）的测量；从模拟输入到模拟输出的信号测量（除最一般情况外）；与电磁兼容（EMC）和安全相关的测试。
Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics - Part 3: Professional use (Endorsed by AENOR in March of 2009.)
本部分IEC 61606规定了个人电脑（PC）音频部件的线性PCM信号的基本测量方法，适用于台式和便携式电脑。通用测量条件和方法在IEC 61606-1中描述。PC的特定测量条件和方法在本标准中给出。注1：所述方法主要基于8 kHz至192 kHz的采样频率和8位至24位的位长。注2：本标准描述了具有数字输入和模拟输出以及模拟输入和数字输出的美利体育官网首页网址的测试。数字输入数据来自内部硬盘驱动器（HDD）或其他存储介质，输出的数字数据记录到内部HDD或主存储器中。注3：本标准规定的方法不适用于包含有数据丢失的比特率降低的数字音频信号的系统，也不适用于1位信号。本部分不适用于IEC 61606-1中描述的模拟输入与模拟输出以及数字输入与数字输出。注4：当PC的CPU因非音频输入/输出任务而过载时，PC可能无法记录/重放整个音频数据。本标准仅适用于输入/输出数据在记录/重放时没有此类数据丢失的测量。带有丢失音频数据的PC的性能可以通过短期失真测量进行评估，尽管这种评估不在本标准的范围内。
Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics -- Part 4: Personal computer (IEC 61606-4:2005). (Endorsed by AENOR in April of 2007.)
音频/视频、信息通信技术美利体育官网首页网址 - 第 1 部分：安全要求（IEC 62368-1:2014，修改版）；德语和英语版本 EN 62368-1:2014/prAD:2018。本规范规定了个人音乐播放器（PMP）及相关耳机、耳机的安全要求，特别是针对长时间暴露于过大声压级的保护措施。
Audio/video, information and communication technology equipment — Part 1: Safety requirements
This standard provides techniques for objective measurement of electroacoustic devices used for speech communications, including communication devices also used for multimedia applications. Application is for devices that are primarily used closely coupled to the ear. Aspects of devices with speakerphone or speaker listening features are covered by IEEE Std 1329?. This standard is applicable to devices that include communication terminals that connect to a network, as well as to subsystems that connect to a terminal. The methods in this standard specifically apply to devices that connect to analog, digital, Voice over Internet Protocol (VoIP), and other local area network (LAN) networks. They may also apply to devices that connect to mobile and other wireless networks. This standard applies to terminals independently of the internal audio architecture. Examples include cordless phones, VoIP phones, and softphone clients. It also applies to subsystems such as universal serial bus (USB) audio devices, Bluetooth? headsets, and four-wire analog handsets. Due to the various characteristics of these devices and the environments in which they operate, not all of the test procedures in this standard are applicable to all types of terminals and subsystems. Guidance for the applicability of specific tests is given within this standard. The purpose of this standard is to provide laboratory test methods for evaluating the electroacoustic performance of communication devices. In this standard, the word 'device' refers to the object to be tested (DUT). Examples include terminals and subsystems such as digital and VoIP telephones, analog telephone sets, USB headsets, analog handsets, and headsets. Proceed with the following steps: a) Select the required test equipment, fixtures, and environment according to Clause 5. b) Set up codecs, interfaces, and test circuits according to Clause 6. c) Select appropriate test signals according to Clause 7. d) Calibrate measurement equipment and signal sources according to Clause 8. e) Position the device according to Clause 9. f) Adjust the control settings of the device according to Clause 10. Depending on the location of the control settings, they may need to be adjusted before positioning the device. It may be necessary to perform one or more preliminary measurements to verify the controls have been set properly. g) Arrange the test setup according to Clause 11. h) Perform the measurement(s) according to Clause 12. i) Translate measurements made at the ear simulator from drum reference point (DRP) to listener reference point (LRP) according to Clause 13. Translation shall be performed prior to any format conversion. j) Perform any desired data format conversion according to Clause 13.
IEEE Standard Method for Measuring Transmission Performance of Telephone Sets
本部分描述了专业音频和视听美利体育官网首页网址的数字音频部分的音频特性的基本测量方法。对消费级应用美利体育官网首页网址和专业级应用美利体育官网首页网址均适用的通用定义、测量条件和测量方法见SJ/T 11180.1。本部分中的详细定义、测量条件和方法适用于与SJ/T 11180.1中所描述的不同的专业美利体育官网首页网址。本部分不适用于：非专业音频美利体育官网首页网址的测量；低比特率音频美利体育官网首页网址（“子带”或“感知”编码美利体育官网首页网址）的测量；明显改变信号的时间或频率特性的美利体育官网首页网址（如音高转换器或反响器）的测量；模拟输入/模拟输出信号超出一般范围的美利体育官网首页网址的测量；与EMC和安全相关的试验。
Basic methods of measurement of audio characteristics of digital audio parts of audio and audio-visual equipment Part 3: Professional grade applications
本标准提供了用于语音通信的电声美利体育官网首页网址客观测量的技术，包括也用于多媒体应用的通信美利体育官网首页网址。适用于主要用于与耳朵紧密耦合的美利体育官网首页网址。具有扬声器电话或扬声器监听功能的美利体育官网首页网址方面由IEEE Std 1329?涵盖。本标准适用于包括连接到网络的通信终端美利体育官网首页网址，以及连接到终端的子系统。本标准中的方法特别适用于连接到模拟、数字、互联网语音协议（VoIP）和其他局域网（LAN）网络的美利体育官网首页网址。它们也可能适用于连接到移动和其他无线网络的美利体育官网首页网址。本标准适用于终端，无论其内部音频架构如何。示例包括无绳电话、VoIP电话和软电话客户端。它还适用于子系统，如通用串行总线（USB）音频美利体育官网首页网址、蓝牙?耳机和四线模拟手机。由于这些美利体育官网首页网址的特性和它们运行的环境不同，本标准中的所有测试程序并不适用于所有类型的终端和子系统。本标准的目的是提供实验室测试方法，用于评估通信美利体育官网首页网址的电声性能。
Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
本文件规定了在语言相互独立且与参与者、发言者和手语使用者不在同一场所时使用同声传译分配平台的要求和建议。配合ISO 20108，本文件还提供了确保声音和图像的质量以及其从发言者和手语使用者到翻译人员，再从翻译人员到参与者的传输要求，以及为翻译人员的工作环境配置提供的要求和建议。
Simultaneous interpreting delivery platforms — Requirements and recommendations
Diese Norm gilt fur die grundlegenden MeBverfahren fur die Audio-Eigenschaften von Digitalton-AV-Geraten und digitalen Tonteilen von AV-Geraten (fur den allgemeinen Gebrauch und fur professionelle Anwendungen). Es werden die allgemeinen MeBbedingungen und Verfahren fur die Messung der Leistungs-Kennwerte der Gerate beschrieben, die eine Tonfrequenzbandbreite von ungefahr der halben Abtastfrequenz der Anlage aufweisen, und die Toninformation in Form von digitalen Daten verarbeiten. CD-Spieler, DAT-Recorder, digitale Verstarker, digitale Tonrundfunkempfanger und Fernsehrundfunkempfanger mit digitalem Tonteil sind einige Beispiele. Die in dieser Norm festgelegten MeBverfahren sind nicht fur Anlagen anwendbar, die datenreduzierte digitale Tonsignale verarbeiten. Zur Zeit beschreibt diese Norm nur Prufungen fur den analogen Ausgang von digitalen Eingangssignalen. Die kunftige Uberarbeitung dieser Norm wird Prufungen fur 'digital ein - digital aus', 'analog ein - digital aus' und 'analog ein - analog aus' umfassen.
Audio and audiovisual devices – Digital sound components – Basic measurement methods for audio properties DIN
EN 50332第2部分规定了测量个人音乐播放器和耳机/耳塞匹配值的方法，这些美利体育官网首页网址用于与个人音乐播放器一起使用，并使用标准化连接器，允许组合不同制造商或不同设计的组件，以避免由于过高的声压导致可能的听力损伤。与"一体化套装"相比，耳朵处的声压水平不能仅通过一个条件固定，而需要通过至少两个特性来确定，一个是播放器，另一个是耳机/耳塞，通过它们的连接匹配值来定义。EN 60950-1:2006/A12:2011和EN 60065:2002/A12:2011给出了防止个人音乐播放器过高声压的要求。
Sound system equipment: Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 2: Matching of sets with headphones if either or both are offered separately, or are offered as one packa
1????Scope This document specifies requirements and recommendations for using simultaneous interpreting delivery platforms at communicative events where interpreters are not at the same venue as participants , speakers and signers . In conjunction with ISO?20108, this document also provides requirements and recommendations for ensuring the quality of sound and images and their transmission from speakers and signers to interpreters , and from interpreters to participants , and for the configuration of the interpreter ’s working environment.
Simultaneous interpreting delivery platforms. Requirements and recommendations
本部分IEC 62368规定了在正常操作条件、异常操作条件（包括合理预见的误用）和单一故障条件下，对普通人、指导人员和熟练人员的保护措施。对于明确设计或意图供儿童使用或对儿童特别有吸引力的美利体育官网首页网址，可能适用额外要求。
Audio/video, information and communication technology equipment — Part 1: Safety requirements
Simultaneous interpreting delivery platforms - Requirements and recommendations (ISO 24019:2022); German version EN ISO 24019:2022
