Automotive Audio
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The most complex audio product is the car
Unique Advantages for OEMs
Control of
- The audio experience
- The change request process
- Cost of change
- Flexibility of design
Ownership of
- Core use-case capability
- Reuse on subsequent generations
- Choosing independent supplier partners and IP partners
- Awareness of state-of-the-art technologies
Transparency for
- System design functionality
- Software and hardware requirements
- Platform through open IP, hardware and OS independence
Efficiencies due to
- A single, cross-functional development platform for all vehicle audio processing needs
- A single audio integration
- Speed and simplification of change
- Ability to take concept directly to production
- Fast iteration and evaluation processes
- Rapid prototyping hardware for easier evaluations
One audio development platform
for all architectures, vehicle segments, and brands
Quick Links
Distributed Architecture Approach
- Hardware and software combined
- Processing on specialized ICs, SoCs, or running on multicores
Highly Integrated
Audio Processing
- Hardware and software decoupled
- Domain controller architecture on one high computing platform
- Compatible with the software-defined vehicle
Speaker Processing
- • Complete multi-channel playback
- • Source selection, source processing, stereo or multichannel source support
- • Entertainment and infotainment audio mixing and ducking
- • Speed-dependent volume control
- • Multichannel speaker EQ, delay, compressor/limiter
- • CAN message input control capabilities


Sound Design
An Audio Weaver module pack made to craft and tune sound enhancements
- • AVAS (Acoustic Vehicle Alert System)
- Pedestrian warning system with FuSa (Functional Safety) requirements
- • ESS (Engine Sound Synthesis)
- External sound designed to augment combustion engine noise
- External sound designed to augment combustion engine noise
- • Welcome Sound
- Played back from exterior or interior speakers
- • ISE (Interior Sound Enhancement)
- Designed to augment combustion engine sound or create soundscapes for electric vehicles
- • ESE (Exterior Sound Enhancement)
- Exterior sounds other than AVAS
- • Interior Chimes and Alerts
Automotive Voice
Design Flexibility
• Microphone topologies
• Microphone array positions
• Number of users
• User scenarios
Development Benefits
• Build out and launch unique and innovative voice applications rather than using a supplier black box
• Run voice solutions on DSPs as well as Cortex A processors
• Use existing microphones for concurrent use cases
• Audio Weaver concurrent speaker and microphone processing
TalkTogether:
Voice Communications
Essential: Front Seating
• Supports single mic and mic array layouts with noise reduction
and doubletalk performance with mono playback
Advanced: Whole Cabin
• Supports multi-mic arrays or per seat mics with adjacent talker
cancellation, advanced noise reduction, and upgraded doubletalk
performance with mono playback
Optional Upgrades Available
TalkTo:
Voice Control
Essential: Front Seating
• Supports single mic and mic array layouts with noise reduction,
Adaptive Interference Cancellation and stereo playback
Advanced: Whole Cabin
• Supports multi-mic arrays or per seat mics with noise reduction,
Seat ID, Adaptive Interference Cancellation, and multichannel playback
Industry Ecosystem Support
Smartphone
Mirroring
Pre-certified
Embedded Voice
Communication
• Alexa ACM
• ITU P.1110/1120
Voice Assistants
Support
Supported Voice Assistants
Automotive Verification Center
Dedicated Automotive Lab in Silicon Valley for precision testing and tuning of automotive voice solutions
- • Head Acoustics ACQUA/VoCAS/3-Pass Flex system for detailed test analysis
and performance tuning of voice control and voice communications solutions
in clean, noise, and music conditions. - • Customized test vehicle providing system connectivity with
head unit and OEM audio system in addition to dedicated background noise
reproduction system. - • Mobile equipment rig for data collection and tuning.

RAPID Automotive Kit
A Rapid Audio Prototyping Device (RAPID)
The complete design and evaluation system for Automotive Voice

Automotive Tuning Tools
Automotive Tuning Suite

Acoustic Signature Analyzer
Measure the acoustical fingerprint of a vehicle
• Browse and evaluate measurements as impulse or frequency response or in a waterfall diagram
• Measurements can be shown for all seats and microphone positions

Tuning Filter Designer
Computer-aided filter design and optimization
• Set channel and global target curves
• Automatically calculate correction parameters
• Set parameters to optimize system performance for vehicle characteristics

Precision Mastering Tool
Real-time sound tuning and listening test tool
• Manage vehicle prototyping and acoustic system comparisons
• Complete final tuning by listening
AWE Tune

System tuning of the entire audio flow including presets
• One application to tune multiple car lines
• Tune with target hardware or in standalone mode
• Easy to adapt to audio flow changes
IC Optimizations and Reference Designs
NXP Mercury SoC with AWE Tune
- Next generation, single-chip software defined radio (SDR) system solution
- Audio Weaver modules provide complete audio configuration and tuning for NXP
SAF400X series processors - Full support for EPICS programmable DSP cores within Audio Weaver
- Pre-configured signal flow available, for a turnkey audio design utilizing the AWE Tune GUI
Samsung Exynos HiFi 4 Enablement
- Tensilica® HiFi 4 DSP provides 32-bit fixed and floating-point performance for demanding automotive applications
- Easily integrate DSP Concepts’ TalkTo voice control and TalkTogether voice communication solutions
- Support for low-latency road noise cancellation (RNC), in-car communications (ICC), and engine sound synthesis (ESS) use cases
- Compatibility with Linux or Android systems
Analog Devices Processors with SHARC+® DSP Cores
- ADSP-SC5xx/215xx product families available with single- or dual-SHARC+ DSP Core floating point processors for flexible audio connectivity and performance scalability
- Optimized Audio Weaver embedded libraries leverage the powerful SHARC+ DSP FIR/IIR hardware accelerators
- Incorporates Analog Devices’ statistics functions and hand-optimized DSP libraries
- Powerful DMA system with innovative digital audio interfaces and internal buses
ADI LISTN™ EZ-AUDIO System
- Full in-car entertainment/infotainment system with a complete signal flow right out of the box
- Includes ADSP-21562-AUTO hardware with optimized Audio Weaver embedded libraries that leverage the powerful SHARC+ DSP FIR/IIR hardware accelerators
- Easily customize and perform system tuning of the entire audio flow with AWE Tune
- Powerful and cost-effective solution for exceptional automotive audio with up to 12 speakers