共找到 720 条与 音响、电声设备 相关的标准,共 48 页
This specification defines packetization and transmission for transport streams of ITU-R BO. 1294 system B (DirecTV system/DSS) over the IEEE 1394 Serial Bus.
Consumer audio/video equipment - Digital interface - Part 7: Transmission of ITU-R BO.1294 System B
이 기술 보고서는 오디오, 비디오 및 시청각 기기 분야에서 커넥터 식별과 응용 안내서이다.
Connectors used in the field of audio, video and audiovisual engineering
이 국제 규격은 비상 상황에 옥내외 지역에서 현 거주자의 빠르고 적절한 이동에 효과를 주도
Sound systems for emergency purposes
Serial multichannel audio digital interface
Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
This standard contains the essential welding variables for carbon steel to austenitic stainless steel in the thickness range of 1/16 through 1-1/2 inch, using manual gas tungsten arc welding. It cites the base metals and operating conditions necessary to make the weldment. The filler metal specifications, and the allowable joint designs for groove and fillet welds. This SWPS was developed primarily for pipe applications.
Standard Welding Procedure Specification (WPS) for Gas Tungsten Arc Welding of Carbon Steel to Austenitic Stainless Steel (M-1/P-1/S-1 Groups 1 and 2 Welded to M-8/P-8/S-8, Group 1) 1/16 through 1-1/2 inch thick, ER309, As-Welded Condition, Primarily Pip
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 6: Non-linear PCM bitstreams according to the MPEG-2 AAC-format
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 5: Non-linear PCM bitstreams according to the DTS (Digital Theatre Systems format(s))
This Recommendation provides specifications for voice service transmission measurement devices that provide measurements on an in-service and non-intrusive basis. These In-Service, Non-intrusive Measurement Devices (INMDs) are utilised primarily for the measurement of voice-grade parameters such as speech level, noise level, echo loss and speech echo path delay.
In-Service Non-Intrusive Measurement Device - Voice Service Measurements
This Recommendation provides specifications for voice service transmission measurement devices that provide measurements on an in-service and non-intrusive basis. These In-Service, Non-intrusive Measurement Devices (INMDs) are utilised primarily for the measurement of voice-grade parameters such as speech level, noise level, echo loss and speech echo path delay.
In-Service Non-Intrusive Measurement Device - Voice Service Measurements
This specification covers one type of loudspeaker, designated loudspeaker, permanent magnet, LS-211/AIC-13.This loudspeaker is a horn type unit with a frequency response of 200-7000 Hz, nominal 16 ohms voice coil impedance, and a 20 watt peak power output (see 6.1).
LOUDSPEAKER, PERMANENT MAGNET, LS-211/AIC-13
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 7: Non-linear PCM bitstreams according to the ATRAC and ATRAC 2/3 formats
Sound system equipment - Part 3 : amplifiers.
This drawing describes device requirements for MIL-STD-883 compliant, non-JAN class level B microcircuits in accordance with MIL-PRF-38535, appendix A.
MICROCIRCUIT, LINEAR, OPERATIONAL AMPLIFIER, DUAL, LOW NOISE, MONOLITHIC SILICON
This drawing documents two product assurance class levels consisting of high reliability (device classes Q and M) and space application (device class V). A choice of case outlines and lead finishes are available and are reflected in the Part or Identifying Number (PIN). When available, a choice of Radiation Hardness Assurance (RHA) levels are reflected in the PIN.
MICROCIRCUIT, LINEAR, QUAD LOW OFFSET, LOW POWER, OPERATIONAL AMPLIFIER, MONOLITHIC SILICON
In this Recommendation, the expression "Administration" is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice o
Logic for the control of echo control devices and functions SERIES Q: SWITCHING AND SIGNALLING Clauses applicable to ITU-T standard systems Logic and protocols for the control of signal processing network elements and functions Study Group 11
The propagation delay in transport networks affects both computer communication protocols and audiovisual communication between humans. The most noted effect is the echo problem for telephony which depends heavily on the propagation delay of the connection.
Logic for the control of echo control devices and functions SERIES Q: SWITCHING AND SIGNALLING Clauses applicable to ITU-T standard systems Logic and protocols for the control of signal processing network elements and functions Study Group 11
이 규격은 주파수와 시간에 대하여 가중 평균한 음압 레벨을 측정하는 소음계에 대하여 규정한
Sound level meters
This part of IEC 61094 is applicable to working standard microphones with removable protection grids meeting the requirements of IEC 61094-4 and to laboratory standard microphones meeting the requirements of IEC 61094-1. This part of IEC 61094 also describes methods of determining the pressure sensitivity by comparison with either a laboratory standard microphone that has been calibrated according to IEC 61094-2, or another working standard microphone that has been calibrated according to this part of IEC 61094. Alternative comparison methods based on the principles described in IEC 61 094-2 are possible but beyond the scope of this part of IEC 61094.
Measurement microphones Part 5: Methods for pressure calibration of working standard microphones by comparison
This specification covers the general requirements for individual lead sockets for insertion through mounting boards or panels.
SOCKETS, (LEAD, ELECTRONIC COMPONENTS), GENERAL SPECIFICATION FOR
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