Front End DSP Audio Technologies For In-Car Applications Alango DSP software for sound enhancement Since 2002

HQ, R&D: Haifa, Israel

• Over 15 years of practical experience

• Main areas: automotive, mobile, accessories, hearing

• 35 Alango employees in 2 locations R&D: St. Petersburg, Russia

www.alango.com Alango solutions portfolio

Voice Voice Communication Package Communication Sound Reinforcement Package

Speech Recognition Voice Enhancement Package Enhancement Voice Activity Detector

Music Automatic Volume and eQ Enhancement MuRefiner™

Sound PersonaSound™ Personalization

www.alango.com 3 Voice Communication Voice Communication Package (VCP)

VCP: Essential technologies for automotive handsfree systems

• Enables crystal clear, full-duplex, noise-free voice calling in car

• Reduces different types of noises, cancels echos, enhances speech

www.alango.com 4 Voice Communication Voice Communication Package (VCP)

M Acoustic Adaptive Automatic Gain Noise Control I Echo Directional EQ C Suppression Dynamic Range (S) Cancellation Microphone Control TX

Automatic Automatic Loudspeaker Gain Control Noise Volume and EasyListen™ EQ Correction Dynamic Range Suppression Equalization Control RX

Over 20 million cars use Alango VCP (Jan. 2019)

www.alango.com 5 Next Generation Handsfree Voice Communication Dual-microphone VCP with Dual Mic Array beamforming

Improved noise reduction: • Road, engine, and wind noises • Rear passenger voices

Driver-selectable mic zones: • Driver’s voice enhanced • Passenger’s voice enhanced Driver Passenger Mic Beam Mic Beam • Both voices enhanced

www.alango.com 6 Voice Communication VCP Auto Industry Compliance

Class “Type 1”: Full Duplex Echo Cancellation

ITU-T VDA 1.6 P.1100/P.1110

www.alango.com 7 Voice Communication VCP eCall Compliance

eCall

GOST R55531 ITU-T P.1140

www.alango.com 8 VCP for Smart Phone Enabled Display Audio

www.alango.com 9 Voice Communication Communication Problems Inside the Car

Raises voice

Repeats herself

Strains her attention

Turns backwards

www.alango.com 10 Voice Communication Sound Reinforcement Package (SRP)

Acoustic Noise Feedback Suppression Cancellation

Acoustic feedback Automatic Mixer Volume and Equalization

Music Output

www.alango.com 11 In-Car Communication “ICC” Auto Industry Compliance

Alango SRP complies with

Head Acoustics HQS-ICC: preliminary quality standard for two-way in-car communication performance

www.alango.com 12 Speech Recognition Improvement with VEP Noisy in-car environments: especially challenging for speech recognition engines Alango Voice Enhancement Package (VEP) • Cleans and enhances the voice signal • Leads to higher accuracy of speech recognition • Works with any speech recognition engine

Voice Enhancement Package M Acoustic Adaptive Automatic Gain Noise Control TO I Echo Directional EQ C Suppression Dynamic Range ASR/ (S) Cancellation Microphone Compression KWR

www.alango.com 13 Speech Recognition Enhancement Objective speech enhancement tests

TEST SCENARIO: Microphone By what measure is Array speech recognition rate in cars improved by Alango preprocessing technologies?

TEST STANDARD: Using Google speech recognition, Mouth Simulator only phrases recognized exactly correctly are counted

www.alango.com 14 Speech Recognition Enhancement Test Scenarios

Single Mic Dual Mic

with noise with noise suppression suppression

km/h km/h km/h km/h Parked Driving

www.alango.com 15 Phrases recognized exactly 1-Mic 1-Mic+NS ADM ADM+NS • Stationary car 98% 100% 97% 94% 78% 80%

60%

40%

20%

0% Driving Speed

www.alango.com 16 Phrases recognized exactly 1-Mic 1-Mic+NS ADM ADM+NS • Driving 100% 88% 80% 72%

60% 57% 33% 40%

20%

0% Driving Speed

www.alango.com 17 Music Enhancement MuRefiner

MuRefiner makes in-car music more enjoyable by brightening vocals, enhancing bass, and widening the stereo field.

Stereo Spectral Bass Normalizer Compander Corrector

www.alango.com 18 Music Enhancement Automatic Volume and eQualization AVQ dynamically amplifies and equalizes music content according to actual in-cabin noise characteristics

Quiet Driving Noisy Driving Noisy Driving Conditions Conditions (original) Conditions dB dB dB (equalized) 90 90 90 80 Music above noise 80 Music 80 Music above 70 70 masked by 70 noise 60 60 noise 60 50 50 50 40 40 40 30 30 30 20 20 20 0KHz 4KHz 8KHz 12KHz 16KHz 20KHz 0KHz 4KHz 8KHz 12KHz 16KHz 20KHz 0KHz 4KHz 8KHz 12KHz 16KHz 20KHz

Music Noise AVQ On

www.alango.com 19 Music Enhancement Automatic Volume and eQualization

• Provides equal perceptual loudness and sound Ambient coloration of music in different Noise driving conditions Stereo Echo Noise • Responds directly to in-cabin Cancellation Estimation noise level and spectrum, Echo Audio/ rather than RPM-based noise Music estimation Adaptive L • Improves intelligibility of Frequency Equalization R speech, such as news radio, navigation prompts, voice calls

www.alango.com 20 Sound Personalization Automotive PersonaSound

We all hear differently. Without sound personalization, drivers miss out on important sounds, music enjoyment

With PersonaSound, all sounds are automatically tuned to match the driver’s hearing profile

www.alango.com 21 Sound Personalization Automotive PersonaSound Use the App to PersonaSound:

Upload Hearing Profile to Car

Test Hearing Obtain Preference Hearing Results

www.alango.com 22 Why work with Alango?

Our technologies are field proven 20 million cars use Alango technologies

Our software is easy to implement Extensive development tools and documentation available to ease tuning and integration

Our software is efficient Low computational footprint; wide range of supported DSP/MCU platforms

www.alango.com 23 IP Partners

www.alango.com 24 Selected Customers

www.alango.com 25 OEMs using Alango Technologies

www.alango.com 26 Alango inside

Citroen C4 Aircross Chevrolet Aveo Chevrolet Captiva Chevrolet Chevrolet Spark Chevrolet Honda CR-Z Honda N-Box New Cruze New Spark

Hyundai Accent Hyundai New Avante Hyundai Equus Hyundai Hyundai Hyundai i30 Hyundai i40 Hyundai IONYQ New Genesis Grandeur HG

Hyundai ix25 Hyundai ix35 Hyundai Santa-Fe Hyundai Sonata Hyundai Sonata LF Hyundai Sonata YF Hyundai iMax/iLoad Hyundai Veracruz

Kia Carens New Carnival Kia K3 Kia K5 Kia K7 Kia K9 Kia Mohave Hybrid

Kia Ray Kia Sedona Kia New Soul Kia New Soul EV R New Kia Sportage

www.alango.com 27 Alango inside

GM Alpheon Isuzu Elf MAN TGS35.500 MG 6 MG ZS MG HS Mitsubishi Mitsubishi Lancer Outlander

Nissan Kicks Nissan Astra Opel Junior Qoros 5 SUV Leaf

Renault Samsung Renault Samsung Renault Samsung Renault Samsung i5 Roewe Marvel X Roewe RX8 Ssangyong Motors SM5 Motors QM3 Motors QM5 Motors SM3 Chairman

Ford Maverick Ssangyong Ssangyong Ssangyong Suzuki S-Cross Volkswagen Volkswagen Maxus G50 Korando Rexton Tivoli Amarok Passat

Baijun RS-5 Toyota Rav4

www.alango.com 28 Thank You Any Questions? Don’t hesitate to contact us. We are always looking forward to hearing from you!

Email us your questions, comments, thoughts, or proposals: [email protected] General enquires [email protected] Sales enquiries [email protected] Engineering enquiries

Main office: +972 (4) 8580 743 Fax: +972 (4) 8580 621 Web: alango.com

www.alango.com 29