Nov 21, 2025
Proliferation of Speakers and Innovative Layouts:
The 2025 ZHIJIE R7 features a 21-speaker HUAWEI SOUND system (including 4 overhead speakers) with a total power output of 2080W, supporting 7.1.4 immersive audio for precise vertical sound localization.
The global automotive speaker market is projected to grow from $4.975 billion in 2024 to $8.209 billion by 2031, at a CAGR of 7.8%, driving the number of speakers in premium models to exceed 20.
Innovations in Materials and Structure:
German brand ETON's GRAPHIT S3 3-way speaker uses a carbon fiber tweeter and a magnesium-aluminum alloy mid-range cone, weighing only 1.8kg with a peak power of 120W. Tests show a 40% improvement in soundstage accuracy even at 60 km/h.
Huawei SOUND employs Schroeder diffuser technology to widen the high-frequency dispersion angle to 210°, enhanced by an "acoustic lens" for better directivity.
AI Algorithms and Immersive Audio Adaptation:
BYD's DiLink Audio system integrates a vocal emotion engine that analyzes user voice characteristics via a microphone array to dynamically adjust sound profiles, with a response latency below 80ms.
The domestic WANOS immersive audio technology, adapted for the Dongfeng eπ 007, supports object-based audio rendering, enabling features like navigation prompts that seem to originate from the direction of a virtual intersection.
OTA Updates Expanding Functionality:
The ZEEKR 009 introduced an Acoustic Active Road Noise Cancellation feature via FOTA, which uses suspension sensor data to generate counteracting sound waves, reducing mid-to-low frequency cabin noise by 12 dB in tests.
Hardware Fusion and Spatial Audio:
Continental's "Acoustic Surface" technology integrates exciters into the windshield, turning the glass itself into a speaker diaphragm with a frequency range of 80Hz-18kHz.
The Tesla Model S Plaid combines active noise cancellation with seat vibration sensors, analyzing body structure resonance frequencies to optimize low-frequency response.
Advancements in Multi-Modal Interaction:
NIO's NOMI 2.0 adds micro-expression monitoring, using an infrared camera to analyze 27 facial features (like lip corners and brow muscles) to inform music recommendations.
High-end DSP chips and multi-sensor fusion solutions (e.g., 4D imaging radar + acoustic microphone arrays) increase the Bill of Materials (BOM) cost by 25%. Models under ¥200,000 rely on domestic computing solutions like the Black Sesame A2000 controller to reduce costs by 30%.
The calibration complexity for radar and acoustic sensors is 35% higher than for vision-only systems, necessitating the development of lightweight calibration algorithms.
The China Association of Automobile Manufacturers is promoting the "In-Vehicle Audio-Video Interconnection Standard," achieving a 58% interface compatibility rate among Huawei HarmonyOS, Xiaomi HyperOS, and NIO Blue Sky Link.
Adaptation costs for automaker-developed OS and third-party apps remain high (billions of RMB). Alibaba's Banma Zhixing "Meta-Native" framework reduces these adaptation costs by 40%.
In strong light/rain/fog, Ofilm's "Polarized Binocular Stereo Camera" improves recognition accuracy by 35%, maintaining an 89% effective recognition rate in adverse weather.
The new BYD Han model features a vocal print + ECG fusion authentication system that uses seat-integrated ECG sensors to collect heart rate variability data, achieving a 98.5% identity verification accuracy even when the driver is wearing a mask.
By 2026, mainstream models will adopt "Central Computing + Zonal Audio" architectures. NVIDIA's DRIVE Thor chip integrates an audio processing unit with 8000 TOPS of compute power, supporting 48 independent audio streams.
Microsoft's "on-chip microfluidic" cooling technology, which etches liquid cooling channels directly into the chip, improves heat dissipation efficiency by 3x and reduces GPU temperature rise by 65%, making it applicable to high-power audio amplifiers.
BrainCo and GAC Aion are co-developing a non-invasive EEG-sensing headrest capable of recognizing 5 thought commands (e.g., song skip/volume control) with 88% accuracy, slated for in-car pre-research in 2026.
Li Auto's AD-Max 3.0 system provides health warnings by monitoring heart and respiratory rates, linking this data with the audio system to play relaxing music.
China Mobile offers a "Cloud Sound Field" service based on its 5G-Advanced network, enabling real-time 360° audio stream transmission with an end-to-end latency of ≤8ms.
Federated learning technology facilitates anonymous driving behavior data transactions. The data platform jointly built by ByteDance and NIO is expected to generate annual revenue of approximately ¥20 billion.
Pret's bamboo fiber composite diaphragm reduces carbon footprint by 50% and offers 3x the stiffness of traditional paper cones, already deployed in the AITO M9.
BYD's solar roof achieves a conversion efficiency of 23%, with 720W power output, adding up to 50 km of range daily and saving an estimated ¥2000 in fuel costs annually.
The Nissan Sakura EV, equipped with a solar panel extension module, gains up to 3000 km of range annually, sufficient for about 1.5 months of city commuting.
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