Voice Interfaces | xCORE-Voice Controllers

xCORE SMART MICROPHONE KIT


  • Digital MEMS microphone array with USB 2.0 backhaul
  • Optimum far-field, beam-forming array microphone
  • Microphone and voice DSP

 

The xCORE USB Smart Microphone, based on the XVSM-2000 voice processor, provides high quality far-field audio capture from PDM microphones with USB (optionally TDM) backhaul. With advanced DSP capabilities, the xCORE Smart Microphone and XVSM-2000 device ensure that voice sources can be delivered with the highest possible quality, and provide the fastest way to integrate voice capture interfaces into smart designs at an affordable price.

xCORE USB Smart Microphone

DOWNLOAD xCORE SMART MICROPHONE PRODUCT BRIEF

 

 

xCORE SMART MICROPHONE FEATURES

xCORE SMART MICROPHONE KIT

XK-USB-VSM-2000

xCORE Smart Microphone

MICROPHONE ARRAY BOARD FEATURES

  • Processor: xCORE-VOICE XVSM Processor
  • Connectivity:
    • USB Audio Class 2.0 compliant device
      • Backwards compatible to UAC 1.0
    • Optional 10/100Mbps Ethernet
  • Voice capture: x7 PDM MEMS microphones (AKU441)
  • Audio out: 3.5mm headphone jack
  • User interface: 4 buttons and 13 LEDs
  • Expansion header
  • xSYS connector for JTAG debug

 

ARRAY MICROPHONE INTERFACE LIBRARY

  • PDM to PCM format conversion
    • Four channel decimator
  • Up to 100dB dynamic range
  • Microphone gain compensation

XVSM SUPPORT LIBRARY

  • Beamforming with configurable beam width and non-stationary noise suppression (up to 20dB attenuation)
  • Echo cancellation (up to 80dB att.)
  • Stationary noise suppression (up to 20dB att.)
  • De-reverb (up to 20dB att.)
  • Output sample rate 16kHz

 

DOCUMENTATION | DOWNLOADS
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WHY USE xCORE SMART MICROPHONES?

  • Interfaces to large arrays of MEMS microphones - PDM or I2S
  • Optimum far-field performance with beam-forming microphone arrays
  • High quality format conversion, decimation and sample rate conversion
  • Independent streams of voice samples from microphone array
  • Enhanced microphone and voice DSP including echo cancellation, de-reverb, equalisation, noise suppression, direction of arrival and voice activity detection
  • Standard backhaul - TDM or USB
  • System control options using industry’s most flexible GPIO
  • Voice capture interface, DSP, backhaul and connectivity capabilities in a single device: cost reduction

 

Discover the real-time DSP capabilities of the xCORE-200 platform in the context of voice interfaces. Download our Real-Time Digital Signal Processing whitepaper.

DOWNLOAD REAL-TIME DSP on xCORE-200