
发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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Noise of machines. Liquid pumps. Noise tests
1.1 — Esta Norma tem por objetivo estabelecer as bases fundamentais para a execu??o de tratamentos acústicos em recintos fechados
It is recommended to avoid extremely long rooms (Length >> Width, Height) and rooms with extremely low ceilings (Height << Length, Width), and also
Speech processing devices for acoustic enhancement SERIES P: TELEPHONE TRANSMISSION QUALITY TELEPHONE INSTALLATIONS LOCAL LINE NETWORKS Subscribers' lines and sets Study Group 12; Covering Note Amendment 1: 9/2003
Semiconductor integrated audio circuits - General principles of measuring methods for stereo decoders
Physical and subjective magnitudes of soundZusammenhang mit den ISO-Empfehlungen ISO/R 131-1959 und ISO/R 357-1963 siehe Erl?uterungen
Physical and subjective magnitudes of sound
本标准规定电子仪器其木制外壳表层处理耐用与美观检查法
Finish Test of Wooden Cabinets for Electronic Equipments
Fire detection and fire alarm systems. Components of voice alarm systems. Loudspeakers
This Technical Report describes a laboratory method for the determination of the treatability of wood in order to determine the likely reaction
Non-destructive testing - Acoustic emission - General principles
5.1x00a0;To fully understand the effects of a given treatment
Standard Test Method for Laboratory Measurement of Acoustical Effectiveness of Ship Noise Treatments Laboratory Measurement of Acoustical Effectiveness for Marine Bulkhead and Deck Treatments
Prezentul standard stabile?te terminologia utilizat? ?n domeniul controlului nedistructiv cu ultrasunete
Acoustic non-destructive control. Ultrasonic fault detertion. Terminology
A presente Norma destina-se a fixar uma técnica de caracteriza??o do ruído no interior dos troleicarros e a recomendar valores limites admissíveis do
that international exchange of television and sound programmes is based to a large degree on magnetic tape
Handling and Storage of Television and Sound Recordings on Magnetic Tape
The CCIïT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITU
Message Handling Systems: Voice Messaging System Protocol Implementation Conformance Statement (PICS) Proforma - Data Communication Networks (Study Group VII) 32 pp
International exchange of television and sound programmes is based to a large degree on magnetic tape; such programmes are archived for a considerable
Handling and Storage of Television and Sound Recordings on Magnetic Tape
Electroacoustics — Sound calibrators
Electroacoustics - Sound calibrators
Electroacoustics - Sound calibrators
Electroacoustics - Sound calibrators
This specification covers an audiofrequency amplifier(hereafter referred to as a distribution unit) used on military ground vehicles
AMPLIFIER, AUDIO FREQUENCY
Electroacoustics — Hearing aids — Part 15: Methods for characterising signal processing in hearing aids with a speech-like signal
1 Prezentul standard, se refer? la rela?iile de defini?ie a nivelului de putere acustic? ?i a nivelului de intensitate a sunetului sau zgomotului. 2
Physical acoustics EXPRESION OF THE ACOUSTIC POWER AND INTENSITY LEVELS OF SOUND OR NOISE
Esta norma tiene por objeto fijar el significado de las expresiones que definen las magnitudes que caracterizan un sonido o un uiao er sus aspectos f
Physical and subjective magnitudes of soundZusammenhang mit den ISO-Empfehlungen ISO/R 131-1959 und ISO/R 357-1963 siehe Erl?uterungen
Physical and subjective magnitudes of sound
Sound system equipment. Loudspeakers
Acoustics. Expressing the physical and psychophysiological properties of a sound or a noise.
この規格は,音源から放射された音が様々な気象条件下で屋外の大気中を伝わるときに受ける空気吸収の減衰を計算する方法を規定する
Acoustics -- Attenuation of sound during propagation outdoors -- Part 1: Calculation of the absorption of sound by the atmosphere
Pick-up cord gramophone
A variant of the pilot-tone system has been investigated in the Netherlands using a single-sideband modulation of the sub-carrier, having a vector
Stereophonic or multi-dimensional sound in frequency-modulation sound broadcasting








