The ANTARES group at the University of Erlangen is working towards the integration of a set of acoustic sensors into the ANTARES Neutrino Telescope 1. With this setup, tests of acoustic particle detection methods and background studies shall be performed. The ANTARES Neutrino Telescope, which is currently being constructed in the Mediterranean Sea, will be equipped with the infrastructure to ac...

Acoustic Shock describes a condition where sudden loud acoustic signals in communication equipment causes hearing damage and discomfort to the users. To combat this problem, a subband-based acoustic shock limiting (ASL) algorithm is proposed and implemented on an ultra low-power DSP system with an input-output latency of 6.5 msec. This algorithm processes the input signal in both the time and f...

In Europe, national acoustic classification schemes for housing exist in about ten countries. The schemes specify a number of quality classes, reflecting different levels of acoustic protection, and include class criteria concerning several acoustic aspects, main criteria being about airborne and impact sound insulation between dwellings, facade sound insulation and service equipment noise. The...

A set of procedures has been developed to allow preliminary estimates to be made of underwater noise and its effects on marine species. They do not require detailed acoustic survey data, either of the site or of the proposed plant. However, they still facilitate the comparison of different project proposals to assist in the optimisation of equipment layout and routing. Noise may be due to speci...

Competitive audio consumer products require not only cheap signal processing hardware but also low-cost analog equipment and sound transducers. The nonlinear distortions produced by these electro-acoustic transmission systems cannot be described and analyzed by standard methods based on linear systems theory alone. In order to take the nonlinear properties into account, we present a measurement...

The time course of the impedance changes caused by the contralateral acoustic reflex was investigated in five normal hearing, young adult subjects The acoustic reflex function was measured with equipment having a time constant of 15 milliseconds which permitted precise temporal measures. Temporal intervals from signal onset and termination to various portions of the acoustic reflex function wer...

The long-term goals of this project are to develop techniques, which can be used in the design of AUV’s to minimize the radiated noise. The self noise from an AUV can interfere with acoustic sensors on board the AUV, specifically acoustic modem sensors and other sonar equipment. Hence the reduction of AUV noise and structural vibration is essentail in increasing the reliability of operation of ...

Proposed control equipment scheme is based on acoustic Helmholtz resonator property to change its resonance frequency when sound speed in the vicinity of its throat inlet is changed. So this kind of resonator with pressure measuring acoustic transducer is installed in well known Pitou probe static pressure volume envelope, slightly changing its construction. To use Pitou probe of new type, exce...