digital audio enhancement engine
The mQFX™
Competitive Edge- Industry leading,
ARM optimised - Proven track record and
established brand recognition
-
-- Selectable, scalable modular
components easy to implement - Small memory footprint
- High efficiency processing
- Supports earphones and speakers
- Tunable 3D for all narrow geometry speaker configurations
mQFX™
for Mobile Phones and Media Players
mQFX, also known as "microQ Effects", increases the audio impact of media players with a powerful set of enhancements that will set your products apart from the crowd.
mQFX is a very compact, high performance software digital audio processing package drawn from QSound Labs’ leading edge microQ™ digital audio engine. The microQ engine powers portable communications, utility and entertainment devices with features that include wavetable synthesis, full positional 3D audio and multi-format audio playback capability.
mQFX shares with microQ inherent modularity, scalability and portability. You can easily choose the functions that suit your exact product application.
Product Suite
The mQFX suite enhances the music listening experience with:
QSound Spatial Enhancements
• QXpander® 3D stereo sound stage expansion.
• QVerb™ digital reverberation effect.
QEQ Spectral Enhancements
• QSizzle™ dynamic high-frequency enhancement.
• QRumble™ dynamic low-frequency enhancement.
• QLoudness™ Fletcher-Munson equalization adjustment.
• QEQ™ static multi-band equalization.
QVolume
• QDRC™ dynamic range control.
• QLimiter™ anti-saturation dynamic range control.
Feature Set Description
QXpander®:
Proprietary QXpander 3D spatial processing literally adds new dimension to music playback, expanding the sound stage beyond the physical limitations of speaker locations, and expanding the acoustic image outside the listener’s head when listening with headphones. QXpander employs purpose-specific algorithms for maximum spatial impact on headphones or speakers. Speaker-targeted 3D processing is optimized for narrow speaker geometries and can be OEM-tuned for peak performance on front, rear, and side-firing speaker configurations.
QVerb™
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.
QSizzle™
An adaptive mid to high-frequency spectral enhancement, QSizzle restores a natural-sounding sonic punch to highly compressed audio formats like MP3. 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.
QRumble™
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.
QLoudness™
Compensates for human insensitivity to high and low frequencies at low listening levels, restoring natural frequency balance across the spectrum.
QEQ™
A familiar multi-band equalizer option provides users with a familiar interface for shaping overall frequency response.
QDRC™
Dynamic range control boosts soft passages to prevent them
from being lost against ambient noise and reduces the need to
adjust controls.
QLimiter™
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.
Platforms & Implementations
Inherently portable, microQ and mQFX are written in highly-optimized C++ using fixed-point math, and feature the unique combination of small footprint and high efficiency that is the hallmark of QSound audio platforms. An optional C interface is also available.
Modular, scalable components make mQFX readily adaptable to any target environment, with the requirement for platform-specific code reduced to input and output interfaces.
mQFX is currently available for DSP and RISC architectures, including ARM® and enhanced ARM architectures running Linux, Symbian OS®, Nokia® Series 60, Microsoft® Windows Mobile.
- ARM7™, ARM9™ and ARM11™ processor families (Optimized by ARM®)
- CEVA-Teak™ and Teak Lite™ DSP cores
- Qualcomm® MSM 6xxx / MSM 7xxx
- Marvell® PXA300 / PXA310
- Tensilica® Xtensa®
- AMD Imageon™
- Infineon MP-E
- TI® OMAP™
mQFX can be provided in the form of object code, or custom ported by QSound Labs to suit your specifications. mQFX can be implemented at various system levels, e.g. within a driver, as a plug-in or as a user application.