This Week’s Newly Reaffirmed Standards
We’re delighted to announce this week’s set of newly reaffirmed ASA Standards (ready for purchase in our ASA Standards storefront): S3 Committee (Bioacoustics): ASA/ANSI S3.13-1987 (R2024) Mechanical Coupler for Measurement of Bone Vibrators Abstract: This standard specifies requirements for mechanical couplers used for calibrating bone-conduction audiometers and making measurements on bone vibrators and bone-conduction hearing aids. Specific design features are given for the mechanical coupler when driven by a vibrator with a prescribed plane circular tip area and applied with a specific static force. An appendix provides an example of a specific construction of a mechanical coupler. ASA/ANSI S3.45-2009 (R2024) Procedures for Testing Basic Vestibular Function Abstract: This Standard defines […]
This Week’s Newly Reaffirmed Standards
We’re delighted to announce this set of newly reaffirmed ASA Standards: S1 Committee (Acoustics): ASA/ANSI S1.16-2000 (R2024) Method for Measuring the Performance of Noise Discriminating and Noise Canceling Microphones Abstract: This American National Standard describes procedures for measuring the performance of noise discriminating and noise canceling microphones. The signal-to-noise ratio is measured at 1/3 octave band intervals with the desired test source in a diffuse noise field. The noise canceling performance of the microphone is defined as the noise canceling index (NCI), a weighted summation of the signal-to-noise ratios. The NCI of the microphone under test can be compared to the required baseline NCI of a laboratory standard pressure microphone. […]