Technology Overview ® HD Q high definition audio engine About QHD® QSound Labs offers the broadest range of audio enhancement technologies available. Today’s multimedia and entertainment devices now support a wide range of formats: DVD, DVD-HD, HD television broadcast and new streaming Internet video formats, various audio CD standards as well as MP3 and similar compressed audio files. The audio from these players or online sources is predominantly two channel stereo, and in the case of most audio content (CD, MP3, WMA and broadcast streaming) this is a default. These products are ideal candidates to benefit from stereo soundfield enhancement, thus delivering a ‘must have’ surround-like experience. Supporting internet audio formats such as MP3 present unique challenges since compressed recordings often suffer in clarity, frequency response and stereo imaging when compared to the superior DVD and linear audio CD formats. QHD combines several audio technologies while addressing the unique demands of multi-format audio playback. QHD provides an extremely attractive feature set coupled with substantial improvements to the listening experience. The QHD software package easily ported to virtually any digital signal processor (DSP) platform. QSound Labs is well known for the high efficiency and scaleability of its audio enhancement algorithms. Simply by adding the QHD process library to your entertainment player or player-targeted DSP, you benefit from an unparalleled suite of high-quality features in a surprisingly small and highly cost effective DSP resource footprint. Product Suite QXpander ® earphone/speaker 3D sound stage expansion. QSizzle™ active mid/high-frequency spectral enhancement. QRumble™ active low-frequency spectral enhancement. QVerb™ digital reverberation effect. The QHD Competitive Edge • Unparalleled experience in 3D audio and surround virtualization • Efficient resource utilization with small software footprint • Patented sound-field enhancement technology • Selectable, scalable modular components for easy implementation QLimiter™ anti-saturation dynamic range control. Leaders in Digital Audio Innovation QHD® QHD Applications Feature Set Description QXpander® QXpander is QSound Labs’ patented stereo soundfield expansion algorithm. QXpander accepts any ordinary stereo signal and produces an output signal with dramatically widened stereo imaging and enhanced realism. It even produces a stunning synthesized 3D soundfield from mono to stereo! QXpander requires no extra speakers or special encoding of input signals and provides excellent results in low-power or limited bandwidth systems. QXpander employs purpose-specific algorithms for maximum spatial impact on regular or narrow geometry speakers as well as headphones. Home Entertainment Stereos Automobile Music Players TVs Computers QSizzle™ An adaptive mid to high-frequency spectral enhancement, QSizzle restores a natural sounding sonic punch to highly compressed audio formats like mp3. Hardware Partners QSizzle selectively adds upper spectrum energy according to the real-time characteristics of the input signal. The result is lively, sparkling highs without the strident, harsh side-effects of simple frequency boosters. • AKM QRumble™ • Motorola The low-frequency counterpart to QSizzle, QRumble also adds energy in a selective fashion, bringing substance and warmth to the low end of the spectrum without overloading on loud passages. • Pixelworks QVerb™ • Texas Instruments 3D acoustic environment simulation enables users to place their music in the sonic context of choice, with presets for stadium, concert hall, club and more. • VeriSilicon QLimiter™ • Genesis Microchip • ST Microelectronics • Zoran A high-efficiency, anti-saturation dynamic range controller, QLimiter handles any combination of signals and extreme effects settings, eliminating output distortion with surprisingly little CPU bandwidth. QHD® Expansion Global Controls LEFT IN RIGHT IN QXpander® QVerb Global Controls QSizzle™ QRumble™ LEFT OUT QLimiter™ Effects Global Controls RIGHT OUT Contact Us QSound Labs, Inc. 400 - 3115 - 12th Street NE Calgary Alberta Canada T2E 7J2 Tel: +1-403-291-2492 Fax: +1-403-250-1521 Email: [email protected] Visit our website for a complete list of regional sales representatives in your area. QVerb™ www.qsound.com Example Implementation QHD Technology Overview v2.2_QS710 QSound, microQ, mQFX, QHD, QSizzle, QRumble, QXpander, Q3D & the QSound Logo are trademarks of QSound Labs, Inc. Other trademarks are the property of their respective owners. Copyright ©2007 QSound Labs, Inc. All rights reserved. Subject to change without notice.
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