Systems Inc. today announced the CX20865, its new high-performance Far-Field
Voice input processor system-on-chip (SoC) designed specifically for
Smart TVs. The CX20865 is the first dedicated Far-Field Voice solution
with integrated Automatic Speech Recognition (ASR) engine, optimized for
telepresence and voice control applications. Conexant has integrated a
third party ASR with the new low-power DSP to support stand-alone
Wake-on-Voice functionality during Smart TV power-off state. Combined
with Conexant's proprietary Far-Field Voice pre-processing algorithms
and integrated high-performance 24bit ADCs, the CX20865 adds a
differentiated Watch Live and Talk™ experience with popular VoIP
applications, such as Skype TV, and delivers accurate voice control
performance while the TV is blasting in high volume. The new Selective
Source Pickup™ technology maintains speech recognition in the presence
of random ambient interference, enabling live demos in the retail
environment and tradeshows.
As the centerpiece of the living room, the Smart TV is becoming the new
hub for the human interface to other digital appliances and the Cloud.
Voice is the natural and ideal hands-free interface for consumers to
access and interact with Smart TVs; from basic voice remote controls to
advanced voice search, apps interaction, social networking, chat and
gaming. However, in order for voice to deliver on the promise of Smart
TV experience for users, ambient noise, TV playback volume and distance
must be taken into consideration. A pioneer in Far-Field Voice
processing technology, Conexant is working closely with leading TV OEMs
to overcome these technical challenges.
The new CX20865 hardware fetures dual cores, high-performance 32bit
DSP, processing multi-thread voice streams and a third party ASR. The
integrated DC/DC provides advanced power management functions. The
device has full-speed USB and I2S I/Os for voice data, and I2C and UART
interface for control. The quad microphone input paths have been
upgraded with high-performance pre-amp and 24 bit ADCs, delivering 106dB
dynamic range full path. Further, each microphone path has dedicated
microphone bias to prevent cross-talk.
The voice pre-processing performance is enhanced to deliver >97 percent
ASR hit-rate when the TV is playing sound at high volume. The new
echo-cancellation supports stereo, 2.1CH, and 2+2CH internal speaker
configurations. The improved de-reverberation and true wideband
processing has radically enhanced the perceptual voice clarity. To this
end, Conexant is also working with leading regional ASR vendors to
optimize hit-rates and reduce false detection with their local and
Cloud-based ASR engines.
The featured Watch Live and Talk seamlessly blends voice conversation
and TV entertainment into a single experience, allowing two parties to
"share the moment" watching the same or different TV programs while
carrying on a conversation. The experience also applies to voice-chat
during multi-party game play on TV, without tethering to a headset.
Selective Source Pickup (SSP) is a breakthrough for Far-Field noise
suppression in time-varying noisy environments. SSP distinguishes the
targeted audience from random speech/noise interference by means of
multi-source separation. The technology is optimized for ASR
applications which go beyond traditional emulation of human auditory
systems that are limited to human hearing intelligence. "A scenario such
as an in-store demo at a large, crowded, noisy retailer shop has been
plagued by low hit-rate and false detection," noted Jonathan Chien,
Conexant executive marketing director. "We have taken a unique approach
to address this chaotic situation with Selective Source Pickup. The
result is a significantly improved voice interaction experience in the
retail shops, as the TV OEM intended."
"Conexant is at the forefront of Far-Field Voice processing technology,"
noted Saleel Awsare, vice president and general manager for Conexant.
"We provide the only turnkey solution, the necessary expertise and
support that enables our TV OEM partners to provide the best-in-class
experience that allows them to keep up with the advancements in the
human voice interface for Smart TVs."
The CX20865 supports the following three major voice user modes:
Other key features include:
The CX20865 is available in 9x9 BGA package. EVKs are currently
available to qualified customers and partners for $500. Pricing starts
at $5.50 each in 100K quantities.
Conexant's comprehensive portfolio of innovative semiconductor solutions
includes products for imaging, audio, embedded modem, and video
surveillance applications. Conexant is a fabless semiconductor company
headquartered in Newport Beach, Calif. To learn more, please visit www.conexant.com.
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