<<

What is good, better, and the best audio? For WinHEC Workshop, Shenzhen, 11 August 2015 2.0 as a Speakerphone  Enterprise Class Full Duplex Speakerphone Experience  Optimized for MS Lync/Skype CONEXANT AudioSmartTM Software  Flawless Cortana Accuracy  SSP Input Noise Reduction mHD-Audio or  Audio Output >2X Louder  Output Enhancement I2S / I2C  SoftAware Speaker Control CONEXANT  No Risk to Speakers CODEC with Integrated  Better Media Consumption AudioSmart Amp experience Sound Pressure Level at 1m Original System AudioSmart System USB Speakerphone (benchmark) 65dB 81dB 76dB No other solution can deliver full duplex conference speakerphone experience while concurrently delivering this level of loudness from laptop or tablet form factor

Company Confidential and Proprietary 2 AUDIOSMARTTM

INPUT TECHNOLOGY

Conexant Confidential and Proprietary 3 Conexant Smart Source Pickup (SSP)

SSP: Conexant proprietary noise suppression algorithm. The one easy solution.

• Based on a Blind Source Separation technique, modified for real-world robustness.

• NOT Beamforming ; SSP uses spatial representation of target speech and noise sources to reduce stationary and semi non-stationary interference (i.e., babble noise).

• Speech can be at any angle relative to the microphones.

• Noise can be at any angle relative to the microphones, even in the same direction as the speech.

Full-Sphere

“User”

“Noise”

Conexant Confidential and Proprietary 4 SSP Voice + Speech Algorithm Value Proposition

Conexant’s Smart Source Pickup Input Pre-Processing Solution with 5M Technology Enables: • High resolution VoIP + class-leading Automatic Speech Recognition from up to 5 meters (16 feet) away! Intelligible • Clear voice quality calls and videoconferencing in real-world Voice conditions (i.e., across a large, noisy room). Calls

Conexant Increased Voice/Speech Input VoIP Pre-Processing Clarity

Speech Decreased Word Recognition Error Rate Engine

Speech + Interference Clear Speech

Conexant Confidential and Proprietary 5 SSP Versatility Supports all device orientations and use-cases with only 2 MICs, NO holes drilled in glass, and ZERO user input! Clamshell Stand Tent Tablet Lay-Flat

Company Confidential and Proprietary 6 AUDIOSMARTTM

OUTPUT TECHNOLOGY

Conexant Confidential and Proprietary 7 Class-D Power Optimization .Constantly delivers DSP-optimized signal to speakers at maximum safe power level, independent of software .Actual output power of H-bridge is monitored at chip pins (closed loop!) and intelligently averaged 100% in hardware . Closed-loop system actively monitors speaker power consumption . Output RMS is compared to a programmable threshold matching exact speaker capabilities . RMS measurements drive intelligent gain control . Adjustments are time-windowed to avoid false triggers by spikes in audio content

PGA DAC

Class-D Speaker Amplifier

decrement gain during excess RMS output RMS

Conexant Confidential and Proprietary 8 AUDIOSMARTTM

IOT EXAMPLE

Conexant Confidential and Proprietary 9 2.0 Speaker Performance Comparison Echo Conexant • Seven Microphones • Two Microphones • Amazon Voice Processing • Conexant Far-Field Voice Processing • Amazon voice trigger engine • Sensory voice trigger engine (embedded in Conexant SOC)

Company Confidential and Proprietary 10 Conexant Noise Suppression Performance vs Amazon

~40% Hit Rate improvement in noisy conditions (Noise 5dB lower than speech)

No Hit Rate degradation in “clean” conditions (Noise 10dB lower than speech)

30% Hit Rate improvement in extremely noise conditions (Noise same level as speech)

With Conexant processing, user will be understood one in three attempts With Amazon processing, user will almost never be understood

Company Confidential and Proprietary 11 AUDIOSMARTTM

ABOUT CONEXANT

Conexant Confidential and Proprietary 12 History of Conexant Audio

20+ years of Audio Signal Processing Expertise

20+ years of Audio Hardware Expertise

<2000 2006 2010 2012 2014

Windows APO Low-power PC audio USB codec in Library complements codec in production production headsets, HW portfolio computers speakers and Acoustic Echo speakerphones Cancellation enables DSP codec with TM DSP Codec for high AudioSmart Class-D speakerphone in integrated Class D in quality Voice Input Integrated with Codec production production systems and Communication Fax/Modems Expanded PC audio portfolio (ADI in Tier 1 TVs acquisition) Company Confidential and Proprietary 13 Summary

• Single supplier providing Silicon & Software optimized to work “better together”

– Silicon – High Performance ADC, DAC, CODEC’s, DSP & Smart AMP – Software – Input Processing, Playback Processing & Awareness – Ecosystems – Driving end user use cases with Industry leaders – Partnerships – partners telling OEM’s – “Conexant’s solutions work better” – Applications – support Audio for PC/Tablets/Headset/Docks/Smart Home/IoT

Company Confidential and Proprietary 14 Worldwide, World-Class Support

• Highest concentration of France computer audio systems knowledge in the industry

• Expert Support AND Korea

Japan Engineering staff in every major China time zone • Proven track record enabling India Taiwan on-time shipment of Tier-1 OEM products Singapore

Headquarters

Waltham Design Centers

Sales Offices

Headquarters Design & Sales Irvine

Austin *Supported through a network of 20 Distributors and 13 Rep Firms

Company Confidential and Proprietary 15