ACOUSTICAL STANDARDS NEWS Free

$•30June2008$

ASA Committee on Standards (ASACOS) and ASACOS Steering will meet in Paris in conjunction with the 155th meeting of the Acoustical Society of America.

Note that there will be NO standards committee meetings in Paris in June 2008.

$•10–14November2008$

Meetings of the National Standards Committees S1, Acoustics; S2, Mechanical Vibration and Shock; S3, Bioacoustics; S3/SC1, Animal Bioacoustics; and S12, Noise, and the U.S. TAGs to ISO/TC 43, ISO/TC 43/SC 1, ISO/TC 108 and its subcommittees, will be held in conjunction with the 156th meeting of the Acoustical Society of America in Miami, Florida.

Specific meeting dates and times will be announced soon.

$19–23May2008-Stockholm,Sweden$

•IEC/TC 29 Electroacoustics

$26–30May2008-Boras,Sweden$

•ISO/TC43 Acoustics, and ISO/TC 43/SC 1 Noise

$27–31May2008-Kyoto,Japan$

•ISO/TC 108/SC 5, Condition monitoring and diagnostics of machines

$3–7November2008-St. Louis,MO$

•ISO/TC 108, Mechanical vibration, shock and condition monitoring

•ISO/TC 108/SC 3, Use and calibration of vibration and shock measuring instruments

•ISO/TC 108/SC 6, Vibration and shock generating systems

All the Standards Committees, the TAGs, and many of the Working Groups met in New Orleans. Here are photos from just a few of them with apologies to those whose meetings are not represented here.Fig. 1. S3/WG 87 Manikins.

Fig. 2. The first meeting of S3/SC 1 Animal Bioacoustics.

Fig. 3. S12/WG 46 relocatable classrooms.

Fig. 4. ASACOS Steering Group.

Fig. 5. Accredited Standards Committee S1, Acoustics.

Fig. 6. ASACOS.

Fig. 7. ASACOS #2.

Call for Members in Standards Committees

The Acoustical Society of America Standards Secretariat is seeking organizational members in the categories of User Interest, Government Interest, Trade Association, and/or General Interest for Accredited Standards Committees S1–Acoustics, S2–Mechanical Vibration and Shock, S3–Bioacoustics, S3/SC1–Animal Bioacoustics, and S12–Noise, as well as for participation in the U.S. TAGS to IEC/TC 29–Electroacoustics, ISO/TC 43–Acoustics, ISO/TC 43/SC 1–Noise, and ISO/TC 108 and all of its subcommittees.

If your company or organization is interested in becoming a member of any of these committees, please contact Susan Blaeser, Standards Manager, ASA Standards Secretariat, (631) 390–0215 or [email protected] for additional information.

American National Standards Call for Comment on Proposals Listed

This section solicits comments on proposed new American National Standards and on proposals to revise, reaffirm, or withdraw approval of existing standards. The dates listed in parentheses are for information only.

ASME (American Society of Mechanical Engineers)

Reaffirmations

BSR/ASME Y32.18-1972 (R200x), Symbols for Mechanical and Acoustical Elements as Used in Schematic Diagrams (reaffirmation of ANSI/ASME Y32.18-1972 (R2003))

Presents standard symbols and definitions that may be used in constructing schematic diagrams for mechanical and acoustical systems whose performances are describable by finite sets of scalar variables (29 January 2008)

ATIS (Alliance for Telecommunications Industry Solutions)

Revisions

BSR/ATIS 0300255-200x, In Service, Nonintrusive, Measurement Device (INMD)—Methodology for Applying INMD Measurements to Customer Opinion Models (revision of ANSI T1.255-2003)

Allows INMD measurements to be used to evaluate the performance of telecommunications connections and services and to detect speech level, noise, and echo anomalies on telecommunications connections. (11 February 2008)

SCTE (Society of Cable Telecommunications Engineers)

New Standards

BSR/SCTE 24-23-200x, BV32 Speech Codec Specification for Voice over IP Applications in Cable Telephony (new standard)

Contains the description of the BV32 speech codec1. BV32 compresses 16-kHz sampled wideband speech to a bit rate of $32kb∕s$ (kilobits per second) by employing a speech coding algorithm called Two-Stage Noise Feedback Coding (TSNFC), developed by Broadcom. (11 February 2008)

UL (Underwriters Laboratories, Inc.)

Revisions

BSR/UL 217-200x, Single and Multiple Station Smoke Alarms (revision of ANSI/UL 217-2006)

Proposes the following changes: Voice messages in alarm signals; smoke box air circulation fans; jarring test; sound output measurement; temporary alarm silencing; battery operational temperature ranges for RV and marine alarms; installation instructions; and situations where smoke alarms may not be effective. (17 December 2007)

Final Actions on American National Standards

The standards actions listed below have been approved by the ANSI Board of Standards Review (BSR) or by an ANSI-Audited Designator, as applicable.

ASA (ASC S3) (Acoustical Society of America)

Reaffirmations

ANSI S3.46-1997 (R2007), Methods of Measurement of Real-Ear Performance Characteristics of Hearing Aids (reaffirmation of ANSI S3.46-1997 (R2002))

ASA (ASC S12) (Acoustical Society of America)

Revisions

ANSI/ASA S12.9-Part 5-2007, Quantities and Procedures for Description and Measurement of Environmental Sound—Part 5: Sound Level Descriptors for Determination of Compatible Land Use (revision of ANSI S12.9-Part 5-1998 (R2003))

Withdrawals

ANSI S12.30-1990, Guidelines for the Use of Sound Power Standards and for the Preparation of Noise Test Codes (withdrawal of ANSI S12.30-1990 (R2002))

SCTE (Society of Cable Telecommunications Engineers)

New Standards

$ANSI∕SCTE24-22-2007$⁠, iLBCv2.0 Speech Codec Specification for Voice over IP Applications in Cable Telephony (new standard)

Project Initiation Notification System (PINS)

ANSI Procedures require notification of ANSI by ANSI-accredited standards developers of the initiation and scope of activities expected to result in new or revised American National Standards. This information is a key element in planning and coordinating American National Standards.

The following is a list of proposed new American National Standards or revisions to existing American National Standards that have been received from ANSI-accredited standards developers that utilize the periodic maintenance option in connection with their standards. Directly and materially affected interests wishing to receive more information should contact the standards developer directly.

ATIS (Alliance for Telecommunications Industry Solutions)

BSR/ATIS 0300255-200x, In-Service, Nonintrusive Measurement Device (INMD)—Methodology for Applying INMD Measurements to Customer Opinion Models (revision of ANSI T1.255-2003) This document is intended for use as the North American standard for mapping measurements made with In-Service, Nonintrusive Measurement Devices (INMDs) to the parameters used in customer opinion models for voice services. Project Need: To allow INMD measurements to be used to evaluate the performance of telecommunications connections and services and to detect speech level, noise, and echo anomalies on telecommunications connections. Stakeholders: Telecommunications Industry.

IEEE (ASC C63) (Institute of Electrical and Electronics Engineers)

BSR C63.4-200x, Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of $9kHz$ to $40GHz$ (revision of ANSI C63.4-2003)

Revises ANSI C63.4 to address the following specific issues and other issues as may be raised by the revision task group. (A) Add to Figure 2 (LISN) a tabular list in addition to the graph; (B) Clarify paragraphs 11.1.3(e) and (f) on exercise of displays; (C) In section 12.2.1, replace “$5V$ peak-to-peak VITS signal supplied through the video input port.” with “the highest input voltage where video is still processed or present, or visible on the TV screen without error, should be recorded and tested”; (D) LISN calibration procedures; and (E) Definition of cable loss as a function of temperature. Project Need: To revise ANSI C63.4 to address issues raised by the revision task group. Stakeholders: EMC test laboratories, EMC test equipment manufacturers (software designers).

BSR C63.19 Amendment-200x, Methods of Measurement of Compatibility between Wireless Communications Devices and Hearing Aids (addenda to ANSI C63.19-2007)

Supplements and revises portions of ANSI C63.19-2007 to deal with the topics listed in the project description. Project Need: To cover range between $698MHz$ to $6GHz$ and to revise the methods of measurement. Stakeholders: Manufacturers of cellular phones and hearing aids, service providers, hearing aid wearers, regulators.

TIA (Telecommunications Industry Association)

BSR/TIA 855-A-200x, Telecommunications—Telephone Terminal Equipment—Stutter Dial Tone Detection Device Performance Requirements (revision of ANSI/TIA 855-2001)

Revises ANSI/TIA/EIA-855-2001 to update the noise immunity requirements, provide missing tolerances for several requirements, and to clarify several ambiguous requirements. Project Need: To update the noise immunity requirements, to provide missing tolerances for several requirements, and to clarify several ambiguous requirements. Stakeholders: Telecommunications Industry Association.

(Partially derived from ANSI Standards Action, with appreciation)

Newly Published ISO and IEC Standards

Listed here are new and revised standards recently approved and promulgated by ISO—the International Organization for Standardization.

$ISOStandards$

BASES FOR DESIGN OF STRUCTURES (TC 98)

ISO 10137:2007, Bases for design of structures—Serviceability of buildings and walkways against vibrations

MECHANICAL VIBRATION AND SHOCK (TC 108)

ISO 2017-2:2007, Mechanical vibration and shock—Resilient mounting systems—Part 2: Technical information to be exchanged for the application of vibration isolation associated with railway systems

ISO 8041/Cor1:2007, Human response to vibration—Measuring instrumentation—Corrigendum

PLASTICS (TC 61)

ISO 6721-9/Amd1:2007, Plastics—Determination of dynamic mechanical properties—Part 9: Tensile vibration—Sonic-pulse propagation method—Amendment 1: Precision

ROLLING BEARINGS (TC 4)

ISO 15242-4:2007, Rolling bearings—Measuring methods for vibration—Part 4: Radial cylindrical roller bearings with cylindrical bore and outside surface

TECHNICAL SYSTEMS AND AIDS FOR DISABLED OR HANDICAPPED PERSONS (TC 173)

ISO 23600:2007, Assistive products for persons with vision impairments and persons with vision and hearing impairments—Acoustic and tactile signals for pedestrian traffic lights

ISO Technical Reports

ACOUSTICS (TC 43)

ISO/TR 25417:2007, Acoustics—Definitions of basic quantities and terms

$IECStandards$

ELECTROACOUSTICS (TC 29)

IEC 60318-6 Ed. 1.0 b:2007, Electroacoustics—Simulators of human head and ear—Part 6: Mechanical coupler for the measurement on bone vibrators

PERFORMANCE OF HOUSEHOLD ELECTRICAL APPLIANCES (TC 59)

IEC 60704-2-14 Ed. 1.0 b:2007, Household and similar electrical appliances—Test code for the determination of airborne acoustical noise —Part 2-14: Particular requirements for refrigerators, frozen-food storage cabinets and food freezers

IEC 62552 Ed. 1.0 b:2007, Household refrigerating appliances—Characteristics and test methods

ENVIRONMENTAL CONDITIONS, CLASSIFICATION AND METHODS OF TEST (TC 104)

IEC 60068-2-6 Ed. 7.0 b:2007, Environmental testing—Part 2-6: Tests—Test Fc: Vibration (sinusoidal)

IEC Technical Specifications

ULTRASONICS (TC 87)

IEC/TS 61949 Ed. 1.0 en:2007, Ultrasonics—Field characterization—In situ exposure estimation in finite-amplitude ultrasonic beams

ISO and IEC Draft International Standards

$ISO$

ACOUSTICS (TC 43)

ISO/DIS 11201, Acoustics—Noise emitted by machinery and equipment—Measurement of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections (8 February 2008)

ISO/DIS 11202, Acoustics—Noise emitted by machinery and equipment—Measurement of emission sound pressure levels at a work station and at other specified positions applying approximate environmental corrections (8 February 2008)

ISO/DIS 11204, Acoustics—Noise emitted by machinery and equipment—Measurement of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections (8 February 2008)

ISO/DIS 17201-3, Acoustics—Noise from shooting ranges—Part 3: Guidelines for sound propagation calculations (16 February 2008)

$IECDraftStandards$

104/448/FDIS, IEC 60068-2-27 Ed. 4.0: Environmental testing—Part 2-27: Tests—Test Ea and guidance: Shock (1 February 2008)

46A/875/FDIS, IEC 61196-1-325: Coaxial communication cables—Part 1-325: Mechanical test methods—Aeolian vibration (11 January 2008)