Announcing System 1000 - Our Entry-Level System

Tucson, AZ - October 11, 2005 - Refined Audiometrics Laboratory announces the release of its entry-level hearing enhancement system, the Refined Audiometrics System 1000.

This new, high-performance, system produces sonic results that approach the theoretically implied restoration for persons with imperfect hearing. But unlike System 2000 and System 5000, this version runs on an embedded DSP inside the Soundart Chameleon from Spain. Audio is processed at 48 KHz sample rate and 24-bit resolution for quality sonic results. This entry-level system offers the lowest cost alternative to our higher-end Systems 2000 and 5000.

The intended audience is audio professionals who may have lost some of their edge, performing artists who have blown their ears, and former audiophiles. Hearing imperfections can be accommodated from very slight at the highest frequencies, to very serious loss over the entire spectrum.

System 1000 requires a sustained computational performance of 80 MIPS, using 24-bit processing precision, which is provided by a FreeScale 56303 inside the Chameleon box. The front panel user controls and communications with the DSP are carried out by a FreeScale ColdFire processer in the same box. The code has been carefully hand-crafted from DSP Assembly language to squeeze maximum performance from the DSP.

The degree of hearing correction required can be set either by a single knob adjustment, which suffices for many listeners, or by entering detailed audiology measurements for both left and right channel hearing. The single knob adjustment is made possible as the result of advanced breakthroughs in understanding the nature of human loudness perception.

Using the dialed hearing information a sophisticated nonlinear physics and hearing physiology model computes, in real time, the required spectral corrections to reach the sensations that would be perceived by a Golden Ear. Corrections are applied to each of 50 overlapping half-Bark frequency bands, and which vary with the instantaneous loudness in each band.

Utilizing 4-fold temporal overlap processing, unwanted harmonic distortion products are pushed below -80 dBFS when the system is calibrated to Dolby/DTS Theater standards, which corresponds well with CD quality playback. Corrections are updated at rates approaching 1 KHz, and the level dynamics are precisely matched to human hearing physiology. Throughput latency is 8.3 ms which makes the use of System 1000 suitable for live performance and professional audio engineering applications.

Complete setup and calibration information is provided with each system. Input audio signals are expected to conform to K-17 wide-band RMS levels using -10 dBV audio levels.

For further information, or requests for configurations to meet specific needs, contact us at:

info@refinedaudiometrics.com
http://www.refined-audiometrics.com

Refined Audiometrics Laboratory
4391 N. Camino Ferreo, Tucson, AZ 85750, USA

Telephone: 1.520.390.3995