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Overview

ClearVox is a software suite of advanced voice input processing algorithms aimed to enhance voice clarity in any voice-enabled device.

Voice has become the primary user interface for services such as cloud-based conversational assistants and voice activated IoT, and it requires a clean voice signal in any given environment to ensure accuracy and intelligibility by smart speakers, Bluetooth speakers, headsets, mobile phones, wearables, infotainment and smart home systems.

ClearVox is leveraging CEVA s vast experience in audio and voice processing and incorporates advanced algorithms that cope with different acoustic scenarios and microphone configurations, including optimized software for speaker direction of arrival, multi-mic beamforming, noise suppression, and acoustic echo cancellation.

Benefits

  • Software suite of advanced voice input algorithms for CEVA sound DSPs, targeting smart voice activated devices. Significantly reduces barrier-to-entry for voice-enabled device makers
  • Configurable and modular to allow customization for silicon vendor and OEM to address specific product needs such as number of mics, mics geometry and echo tail.
  • Provides 12dB SNR improvement, far field voice pick-up of up to 10 meters and enables barge-in during music playback.
  • Unique software architecture to minimize computation workload for efficient cost & power

Block Diagram

Tech Specs

Maturity In Production

Features

  • ClearVox incorporates multiple algorithms such as SW VAD (Voice Activity Detection), direction of arrival, beamforming, noise suppression and acoustic echo cancellation
  • ClearVox software suite is available in two packages:
    • ClearVox Universal - targeted for smart home, wearable and automotive
    • ClearVox Headset - optimized for headset applications
    • The accompanying SDK is available for customers to configure and adopt ClearVox to their unique product specifications, such as number and geometry of microphones, echo tail length and more.
    • ClearVox operates in tandem with WhisPro, offering a complete CEVA DSP-based software solution for speech recognition
    • Providing state of the art noise reduction and AEC for barge in capability
    • Ensured to work together with minimal computational resources and power consumption with high recognition rate in noisy environments in near-field and far-field scenarios
    • ClearVox is available exclusively for CEVA s sound DSPs

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