What We Do

Schuyler Quackenbush founded Audio Research Labs in 2002, where he is owner and principal consultant. Dr. Quackenbush brings many years of experience in research and technology development, including

• More than 15 years at AT&T Bell Laboratories
• More than 15 years of participating in ISO/IEC standardization of technology (and more than 10 years as Chair of MPEG Audio Subgroup, see MPEG)
• Numerous engineering consulting engagements for startups and established companies (see Engineering)
• Extensive experience as a patent expert witness (see Patents)

For consulting jobs requiring more diverse expertice, ARL can bring in partners as needed (see People).

In 2006 Dr. Quackenbush was a founder of the startup Lightspeed Audio Labs, where he was VP of Audio Technology. At Lightspeed he built a client/server system for real-time audio "jamming" (see JamNOW).

ARL Products

STEP

STEP is a computer-controlled system for presentation and subjective evaluation of speech and audio signals that can run on any Windows PC. It was developed by a group of former Bell Laboratory acoustics and signal processing engineers. It is typically used in conjuction with an acoustically controlled listening environment, in which signals are presented via headphones or loudspeakers. The PC on which STEP is run must provide a video screen (e.g. LCD) for the listener to view the STEP control panel, a mouse for the listener to interact with the panel and an audio output card or device to interface to headphones or loudspeaker.

ARL Sound Stage

ARL Sound Stage is a multi-channel plug-in for Digidesign ProTools. It gives mix engineers new ways to craft realistic surround images from non-surround sources such as mono, stereo, LCR, Quad and multi-mono 5.0 sources. Our multi-channel tools include a virtual sound stage and a bass management crossover plug-in.

ARL Services

Patent Services	Expert Witness, Litigation Support, Valuation, Due Diligence ARL patent services are conducted by Dr. Schuyler Quackenbush, founder and President of Audio Research Labs. His technical expertice encompasses audio compresssion, signal processing, including audio and speech signal processing and real-time signal processing. In addition, he is an expert in MPEG audio standards.
Standardization Activities	Attend Standards Meetings and Advocate for Client Positions Dr. Schuyler Quackenbush, can attend meetings of standardization bodies and present and advocate for client positions or client technology. He is an expert in audio compression and has can easily represent technology in that area. As Chair of the MPEG Audio Subgroup, Dr. Quackenbush is extremely capable of advocating for MPEG technology, but would have to review situations in which advocating for client technology may appear to be adverse to MPEG technology.
Subjective Quality Evaluation	Subjective Listening Tests ARL staff have more than 20 years of experience in conducting subjective listening tests for evaluating the performance of speech and audio coding or processing technologies. We can perform BS.1116, MUSHRA, Comparative, or MOS tests on mono, stereo or 5.1 channel content, and presentation can be via either headphones or loudspeakers.
Engineering Consulting	Signal Processing Algorithms Our staff has more than 40 years of experience in developing real-time signal processing algorithms. Our specialty is audio, but we have done other media processing projects. Drawing on years of research know-how developed at Bell Laboratories, staff of Audio Research Labs can assist in or initiate the development of new client technology. Custom Programming Our staff are experts in real-time embedded programming, particularly in network-based applications. We are proficient in Java, C++, C and assembler language programming in many development environments, including Unix and Window, and are proficient in a multi-processing environment (threads, signals and pipes).