VocalFusion 4-mic mono-AEC circular development kit

Our mono-AEC, circular array voice interface gives you near-field voice capture and processing accuracy at far-field range – even in noisy environments. Ideal for if you’re developing ‘centre of room products – like smart speakers.


Accurate voice capture from across the room. Our barge-in capability makes sure that’s happens even in a noisy environment.


Mono-acoustic echo cancellation, noise suppression and dereverberation cut unwanted noise and echo for clear sound capture.


Wake-word engine detects voice commands. Beamforming tracks the active talker so there’s no drop-out when others interrupt.

Our rich optimisation parameters for the XVF3100 voice processor lets you adjust for noise attenuation, gain controland echo development so you can develop the best individual acoustic performance for your product.

And our engineering team are on hand to help you move rapidly from prototype, to tuning and from testing to volume production with a world-class voice capture performance.

Development Kit


Get Started

  • VocalFusion 4-mic mono-AEC circular development kit

    XVF3100 processor board

    • Micro-USB connector for power (optional USB2.0 device connectivity)
    • Low jitter, audio quality clock
    • DAC with integrated headphone amplifier
    • 4 configurable user input buttons
    • 13 user-controlled LEDs
    • xTAG interface for JTAG debug

    XVF3100 voice processor (programmable for far-field voice capture)

    • Wake-word engine by Sensory
    • Full duplex Acoustic Echo Cancellation (AEC)
    • Barge-in
    • 4-microphone adaptive beamformer
    • Dereverberation
    • Noise suppression
    • Automatic Gain Control (AGC)
    • Direction of arrival (DOA) indication

    Microphone Array

    • Circular, 90mm diameter
    • 4 x Infineon IM69D130 PDM (Pulse Density Modulation) MEMS microphones
    • 43mm radius microphone spacing


    • Inter-Integrated Sound (I2S) audio interfaces
    • Inter-Integrated Circuit (I2C) serial control interface
    • High speed USB2.0 compliant
    • Multi-channel USB audio class 1.0
    • 128-pin TQFP package 0.4 pitch

    To get started with the development kit, you’ll also need:

    • Laptop or PC with some stereo music content and 2 free USB ports
    • Internet connection
    • Powered loudspeaker



Get Started

  • XVF3500 voice processor

    • 4-channel digital microphone interface
    • Full duplex stereo acoustic echo cancellation (AEC)
    • Programmable AEC latency
    • Barge-in
    • Adaptive beamformer
    • Dereverberation
    • Noise suppression
    • Automatic Gain Control (AGC)
    • I2S audio interface or high speed USB2.0 compliant device
    • I2S output to DAC, up to 48kHz PCM
    • I2C serial or USB control interface