xCORE-VOICE USB Smart Microphone

xCORE-VOICE USB Smart Microphone
HIGH PERFORMANCE DIRECTIONAL MICROPHONE
USB SMART MICROPHONE FEATURES
 xCORE-VOICE XVSM-2000 processor
o Programmable multicore microcontroller
with microphone and voice DSP
 Beamformer with configurable beam
width and non-stationary noise
suppression (up to 20dB attenuation)
 Perceptual Acoustic Echo Cancellation
(up to 80dB att., mono, narrowband)
 Noise suppression (up to 20dB att.)
 De-reverb (up to 20dB att.)
 Backhaul
o High speed USB2.0 compliant device
 Multichannel USB Audio Class 2.0
o Optional TDM (time division multiplexed)
interface
 Voice capture
o Up to 16 element PDM microphone array
 Audio output options
o I2S mono/stereo output
o DSP options: compressor, limiter
 System control options
o Industry’s most flexible GPIO
o Extensive general purpose libraries
xCORE-VOICE Interface processors provide the
ideal platform for voice capture, high directivity
smart microphone and speakerphone
applications.
The xCORE-VOICE USB Smart Microphone
(XVSM-2000) combines microphone array
aggregation with advanced acoustic DSP
technology and xCORE’s industry leading control
and communications flexibility.
XVSM-2000 can be used stand-alone as a USB
audio conference solution, or alongside an
Applications Processor to provide high-integrity
voice capture for a range of applications.
Offering advanced DSP capabilities including
beamforming, echo cancellation and de-reverb
ensure that voice sources are delivered with the
highest possible quality, guaranteeing the best
user-experience. Audio output processing
enables two-way communication, either with
conference participants, or speech recognition
systems.
Getting started with xCORE-VOICE couldn’t be
easier thanks the xTIMEcomposer™ development
tools which provide a feature-rich software
development environment with quick and easy
customization for customer specific, product
differentiating features.
xCORE-VOICE USB Smart Microphone PRODUCT BRIEF
FUNCTIONAL BLOCK DIAGRAM: xCORE-VOICE USB Smart Microphone
PDM Microphone
Interface
PDM -> PCM
Filtering
16
MEMS
mics
Delay lines
SSRC
Voice DSP
Direction of arrival
Voice activity detection
Control
LED | GPIO | I2C
System Control
LED, buttons
Microphone DSP
Beam forming
Echo cancellation
Noise suppression
De-reverb
Connectivity
USB 2.0 | TDM
Audio Output
I2S
Audio Output DSP
Limiter
Compressor
xCORE-VOICE XVSM-2000
APPLICATIONS
 Voice and audio capture
 High directivity digital microphones
 Conferencing systems
 USB speakerphones
XVSM-2000 EVALUTION BOARD
Features
 xCORE-VOICE XVSM-2000 processor
 7 PDM MEMS microphones
 Connectivity options
o USB device (micro-B) or optional TDM interface
 3.5mm headphone jack
 User interface: 4 buttons, 13 LEDs
 xTAG interface for JTAG debug
DEVELOPING WITH xCORE-VOICE INTERFACE PROCESSORS
The xTIMEcomposer™ tool suite provides everything you need to write, debug and test applications
for xCORE-VOICE processors. 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: beam focus, noise and reverb attenuation, gain control and compression as well as
numerous optimisations for echo cancellation.
For more information and to download xTIMEcomposer go to http://www.xmos.com/tools.
ORDERING INFORMATION
For a list of XMOS distributors, please visit www.xmos.com/support/distributors.
Part number
Contents
XK-USB-VSM-2000
xCORE-VOICE smart mic evaluation board,
xTAG debugger, USB cable x2
© 2016 XMOS LTD
Third party trademarks are hereby acknowledged.
Contents are subject to change.
XM-010293-PC | 2016-07-28
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