The QF3DFX Profound Sound audio processor from Quickfilter Technologies, Allen, TX, is a one-chip, 3-channel audio processor designed for seamless insertion into an audio serial digital data path. The self-booting device can be configured using Quickfilter QFPro Design Software with royalty-free, user-tunable advanced audio algorithms for effects such as bass enhancement, high-frequency restoration, and virtual surround sound. You can configure the processor to interface with I2S or TDM-based audio systems. The QF3DFX operates over data rates up to 48 Ksps and can support data resolutions of 16 or 24 bits. Applications include docking stations, stereo headsets, televisions, MP3 players, and automotive audio products.