Front End DSP Audio Technologies For In-Car Applications...Motors SM3 Renault Samsung Motors SM5...
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Transcript of Front End DSP Audio Technologies For In-Car Applications...Motors SM3 Renault Samsung Motors SM5...
Front End DSPAudio TechnologiesFor In-Car Applications
www.alango.com
• Over 15 years of practical experience
• Main areas: automotive, mobile, accessories, hearing
• 35 Alango employees in 2 locations
Since 2002Alango DSP software for sound enhancement
HQ, R&D: Haifa, Israel
R&D: St. Petersburg, Russia
www.alango.com
Alango solutions portfolio
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Voice Communication PackageSound Reinforcement Package
Voice Enhancement PackageVoice Activity Detector
Automatic Volume and eQMuRefiner™
PersonaSound™
VoiceCommunication
MusicEnhancement
Speech Recognition Enhancement
SoundPersonalization
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VoiceCommunication
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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
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VoiceCommunication
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Voice Communication Package (VCP)
MIC
(S) TX
Acoustic Echo
Cancellation
Adaptive Directional Microphone
Noise Suppression EQ
Automatic Gain Control
Dynamic Range Control
LoudspeakerCorrection
Automatic Volume and Equalization
EasyListen™Automatic
Gain ControlDynamic Range
ControlEQ Noise
Suppression RX
Over 20 million cars use Alango VCP (Jan. 2019)
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Next Generation Handsfree Voice CommunicationDual-microphone VCP with beamforming
Improved noise reduction:• Road, engine, and wind noises
• Rear passenger voices
Driver-selectable mic zones:• Driver’s voice enhanced• Passenger’s voice enhanced• Both voices enhanced
Dual Mic Array
DriverMic Beam
Passenger Mic Beam
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VoiceCommunication
VDA 1.6
VCP Auto Industry Compliance
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ITU-T P.1100/P.1110
Class “Type 1”:Full Duplex Echo Cancellation
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VoiceCommunication VCP eCall Compliance
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eCall
GOST R55531 ITU-T P.1140
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VCP for Smart Phone Enabled Display Audio
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VoiceCommunication Communication Problems Inside the Car
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Raises voice
Repeats herself
Strains her attention
Turns backwards
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Acoustic feedback
Music Output
MixerAutomatic
Volume and Equalization
Noise Suppression
Acoustic Feedback
Cancellation
VoiceCommunication Sound Reinforcement Package (SRP)
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In-Car Communication “ICC” Auto Industry Compliance
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Head Acoustics HQS-ICC:preliminary quality standard for two-way
in-car communication performance
Alango SRP complies with
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Speech Recognition Improvement with VEPNoisy 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
MIC
(S)
Acoustic Echo
Cancellation
Adaptive Directional Microphone
Noise Suppression EQ
Automatic Gain Control
Dynamic Range Compression
TOASR/KWR
Voice Enhancement Package
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Speech RecognitionEnhancement Objective speech enhancement tests
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TEST SCENARIO:By what measure isspeech recognition rate in cars improved by Alango preprocessing technologies?
TEST STANDARD:Using Google speech recognition, only phrases recognized exactly correctly are counted
Mouth Simulator
Microphone Array
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with noise suppression
with noise suppression
km/h km/h km/h km/h
Parked Driving
Single Mic Dual Mic
Speech RecognitionEnhancement Test Scenarios
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97%78%
98% 94%
0%
20%
40%
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Phrases recognized exactly• Stationary car
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Driving Speed
1-Mic 1-Mic+NS ADM ADM+NS
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72%
33%
88%
57%
0%
20%
40%
60%
80%
100%
Phrases recognized exactly• Driving
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Driving Speed
1-Mic 1-Mic+NS ADM ADM+NS
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MusicEnhancement
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MuRefiner
MuRefiner makes in-car music more enjoyable by brightening vocals, enhancing bass, and widening the stereo field.
Stereo Normalizer
Spectral Compander
Bass Corrector
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MusicEnhancement
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Automatic Volume and eQualization
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dB
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0KHz 4KHz 8KHz 12KHz 16KHz 20KHz
dB
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0KHz 4KHz 8KHz 12KHz 16KHz 20KHz
dB
Quiet Driving Conditions
Noisy Driving Conditions (original)
Noisy Driving Conditions (equalized)
Music above noise Music masked by
noise
Music above noise
Music Noise AVQ On
AVQ dynamically amplifies and equalizes music content according to actual in-cabin noise characteristics
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MusicEnhancement
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Automatic Volume and eQualization
Adaptive Frequency
Equalization
Noise Estimation
Stereo Echo Cancellation
Echo
Ambient Noise
Audio/Music
L
R
• Provides equal perceptual loudness and sound coloration of music in different driving conditions
• Responds directly to in-cabin noise level and spectrum, rather than RPM-based noise estimation
• Improves intelligibility of speech, such as news radio, navigation prompts, voice calls
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SoundPersonalization
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Automotive PersonaSound
With PersonaSound, all sounds are automatically tuned to match the driver’s hearing profile
We all hear differently.Without sound personalization, drivers miss out on important sounds, music enjoyment
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SoundPersonalization
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Automotive PersonaSound
Test Hearing Preference
Upload Hearing Profile to Car
Use the App to PersonaSound:
ObtainHearing Results
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Our technologies are field proven20 million cars use Alango technologies
Our software is easy to implementExtensive development tools and documentation available to ease tuning and integration
Our software is efficientLow computational footprint; wide range of supported DSP/MCU platforms
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Why work with Alango?
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IP Partners
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Selected Customers
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OEMs using Alango Technologies
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Chevrolet SparkChevrolet CaptivaChevrolet Aveo ChevroletNew Cruze
ChevroletNew Spark
Citroen C4 Aircross
Hyundai Santa-Fe
Hyundai New Avante Hyundai Equus HyundaiNew Genesis
HyundaiGrandeur HG
Hyundai i30 Hyundai i40
Hyundai ix25 Hyundai ix35 Hyundai Sonata Hyundai Sonata LF Hyundai Sonata YF Hyundai Veracruz
Hyundai IONYQHyundai Accent
Hyundai iMax/iLoad
Honda N-BoxHonda CR-Z
Kia Ray
Kia K9Kia Carens Kia New Carnival Kia K3 Kia K5 Kia K7 Kia Mohave
Kia Soul Kia Sportage RKia SorentoKia Sedona Kia New Soul EVKia New Soul New Kia Sportage
Kia Niro Hybrid
Alango inside
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GM Alpheon
Ford Maverick
Opel Junior Opel MerivaOpel Adam Opel Astra Opel Zafira
Renault Samsung Motors SM3
Renault Samsung Motors SM5
Renault Samsung Motors QM5
Renault Samsung Motors QM3
SsangyongKorando
SsangyongChairman
SsangyongRexton
SsangyongTivoli
Nissan Leaf
MG 6 MG ZS
Qoros 5 SUV
MG HS
Roewe i5 Roewe RX8Roewe Marvel X
MAN TGS35.500
VolkswagenPassat
VolkswagenAmarok
Nissan Kicks
Suzuki S-Cross
MitsubishiLancer
MitsubishiOutlander
Alango inside
Isuzu Elf
Maxus G50
Baijun RS-5 Toyota Rav4
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Thank You
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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 [email protected] Sales [email protected] Engineering enquiries
Main office: +972 (4) 8580 743 Fax: +972 (4) 8580 621 Web: alango.com
