Patent Review: Acoustic Passive Radiator Rocking Mode Reducing

With the increasing popularity of miniaturized systems, the application of the passive diaphragm radiator, as the acoustic mass component in a bass reflex enclosure, is becoming standard practice in the low-frequency portion of the system. And these systems have a few parameter demands that can exceed the capability of many conventional approaches to passive radiator design. In order to solve those challenges, including rocking modes, Bose proposed an effective design.

Sound Solutions International (SSI) introduced its latest family of high-performance microspeakers featuring improvements on loudness, linearity, and distortion levels by featuring the company's Coil-Anchor System (CAS) rocking suppression technology. The new microspeakers can easily scale for multiple applications and requirements in highly constrained mobile and portable designs. The patent-pending high-excursion Manticore speaker family already includes three models for smartphones and laptop/tablet applications.

The specialists in electro-acoustical transducers and audio systems test equipment at Klippel GmbH continue hard at work on updating their range of products, recently expanded with the Klippel Controlled Sound Technology (KCS) and adding on the existing features for the Klippel Analyzer System. Here is a summary of the main things that the company implemented recently, including updates to its dB-Lab software and the QC Software Framework.