VocalFusion Speaker: Circular Array

VocalFusion Speaker - Circular Array

VocalFusion Speaker CircularMono-AEC

  • Evaluation board based on xCORE XVF3100 voice processor
  • 4-mic circular array
  • Exceptional far-field voice capture with advanced voice DSP

The xCORE VocalFusion™ Speaker kit provides direct interfacing to four PDM (Pulse Density Modulation) microphones in a circular array, with a choice of USB or I2S interfaces to connect to application or host processors. Based on the XVF3000 series voice processor, the kit provides the ideal evaluation platform for applications such as smart TVs and smart speakers.

Voice sources are isolated from unwanted noise with the integration of advance DSP techniques including beamforming, echo cancellation and noise suppression.

Keyword trigger detection delivered by Sensory enables users to activate devices simply by speaking instead of having to physically touch the device.

A rich set of optimisation parameters are available to ensure that the best results are achieved for the individual acoustics of the end product. These parameters include adjustment to noise attenuation and gain control as well as numerous optimisations for echo cancellation.

What's in the box?

unboxing video

XVF3100 processor board

  • XVF3100 voice processor
  • Low jitter clock source
  • DAC with integrated headphone amplifier
  • USB bus powered

Circular microphone array card

  • Direct interfacing to 4 PDM microphones kit uses mics 1/3/4/6 only
  • 75x43mm rectangle


  • xTAG debugger
  • USB cable x2 + ribbon cable + RPi interface cable

Detail: XVF3100 voice processor

  • Voice processor for far-field voice capture applications, with integrated Voice DSP, includes:
    • 4 microphone adaptive beamformer
    • Full-duplex AEC with barge-in support
    • Dereverberation, noise suppression, gain control
  • 4-mic digital microphone interface
  • High speed USB2.0 compliant device
  • Optional I2S serial audio interface + I2C serial control interface