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DSP IP core targets voice trigger, recognition apps

08 Jan 2013

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Tensilica Inc. has debuted what it touts as the smallest, lowest power DSP IP core supporting always listening voice trigger and speech command modes. The HiFi Mini DSP IP core enables a hands-free experience and is optimized for the smallest area and lowest power in smartphones, tablets, appliances and automotive applications, said the company.

Tensilica is working with Sensory and other software partners that will provide the voice-activation, speech command recognition, voice pre-processing and noise reduction products optimized on the HiFi Mini DSP.

The company optimized the HiFi Mini DSP core to be as small and power efficient as possible for voice trigger and voice recognition in two major ways. First, the core uses compact 40bit encoding, which significantly improves code size. Second, Tensilica added efficient16bit instructions that are optimized for voice and audio codecs. The result is a post-route core that's only 0.039mm2 in 28nm HPL, the company detailed.

The HiFi Mini DSP IP core will be available in March this year.

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