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 Kia New Carnival Kia K3 Kia K5 Kia K7 Kia K9 Kia Mohave Kia Niro Hybrid
Kia Ray Kia Sedona Kia Sorento Kia Soul Kia New Soul Kia New Soul EV Kia Sportage 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 Opel Adam Opel Astra Opel Junior Opel Meriva Opel Zafira Qoros 5 SUV Leaf
Renault Samsung Renault Samsung Renault Samsung Renault Samsung Roewe 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