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Overview

The Cadence Tensilica HiFi DSPs for Audio, Voice and Speech are also excellent targets for control applications. All HiFi DSPs are click-box additions to the Cadence Xtensa processor, 32 bit RISC architecture, and include the base Xtensa instruction set. Tensilica DSPs offer high flexibility, fast time-to-market, and the lower risk of a processor-based solution, while simultaneously reducing silicon area and power consumption. Because of the efficiency of the architectures, HiFi DSP solutions require only a fraction of the available MHz to perform audio decoding and encoding functions, leaving extra headroom for other control as well as media and signal-processing tasks. Additionally we provide the software, with support for more than 150 audio, voice, speech recognition, and audio and voice enhancement software packages no porting is required. Customers can also port your own proprietary software, completely in C, while maintaining or surpassing the performance of assembly on other DSP.

Block Diagram

Features

Audio DSP Plus Control
All Cadence Tensilica HiFi DSPs are click-box additions to the customizable Xtensa LX processor. They are excellent targets for control applications as well as audio.
Customizable to Meet User Requirements
Because our HiFi DSPs use our Xtensa LX processors, you get all of the customization advantages that our processors are known for, along with incredible flexibility, including (but not limited to):
  • Complete flexibility to add/configure caches and local memories
  • Option to add direct RTL-like interfaces via Ports, Queues, and Lookup Interfaces
  • Option to add custom instructions with full compiler support

Optimized for Audio and Voice
Tensilica HiFi DSPs are optimized solutions for digital audio, voice and speech. The performance levels of these DSPs approach those of fixed-gate implementations. They offer the flexibility, fast time-to-market, and lower risk of a processor-based solution, while simultaneously reducing silicon area and power consumption.
Optimized for Always-Listening Voice Trigger and Recognition
HiFi Mini is our smallest, lowest power DSP supporting always-listening voice trigger and speech command modes. The HiFi Mini DSP enables a hands-free experience. Cadence is working with Sensory and other software partners who provide innovative voice activation, speech command recognition, voice pre-processing and noise reduction products all optimized on the HiFi Mini DSP.
All the Digital Radio Codecs that You Need
Tensilica HiFi DSPs run all the decoders required around the world for digital audio.
Fully Programmable in C
All HiFi DSPs are fully programmable in C, with no assembly required.
Ready for Immediate Design-In
All HiFi DSPs are pre-packaged, ready to drop into SOC designs. They provide programmable support for over 140 audio, voice, and sound enhancement packages, which are pre-ported and ready to use, with no software porting required.
Capable of the Best Sound Enhancement Algorithms
Audio requirements for everything from smartphones to home stereo receivers are being driven by audio post-processing. For voice, smartphone requirements are moving from narrowband to wideband codecs with improved noise suppression, noise dependent volume control, and other algorithms to improve sound quality in crowded environments. For home and car audio, audio enhancement software is significantly enriching the user experience, creating important competitive advantages. And gaming requirements in all environments are driving requirements for up to 32 streams for immersive play.
Performance to Spare
Because of the efficiency of the Tensilica HiFi DSP architectures, only a fraction of the available MHz to perform audio decoding and encoding functions is required, leaving extra headroom for other control as well as media and signal-processing tasks.

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