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Sound middleware Product List

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In-vehicle sound solution CRI ADX Automotive

An automotive sound development solution that supports all aspects of vehicle sound design and the realization of comfortable sound.

CRI ADX Automotive is an automotive sound middleware and development support solution that consistently supports all aspects of in-vehicle sound development, from sound design and implementation to sound quality tuning. It streamlines the entire sound development process and enables high-quality sound creation while minimizing the gap between sound specifications and the final output. ■ Sound design on real machines Sound can be designed and adjusted while reproducing sound quality equivalent to the actual production environment from the early development stages. This enables advance verification and reduces rework. ■ Rapid response to vehicle models and regional variations By simply replacing sound source data, sound specifications can be quickly adapted to different vehicle models and regions. Updates can also be applied via OTA (Over-the-Air). ■ Full-digital amplifier technology Unique full-digital amplifiers achieve both low power consumption and high-volume output, contributing to reduced cost and smaller mounting area. ■ Enhanced UX through UI integration In combination with CRI Glassco, synchronized audio and visual expressions enable intuitive in-vehicle UI experiences.

  • Software (middle, driver, security, etc.)
  • Other embedded systems (software and hardware)
  • Other semiconductors
  • Sound middleware

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Embedded sound middleware "CRI D-Amp Driver"

This full-digital audio output middleware enables high sound quality, low power consumption, and low heat generation using only a microcontroller and an H-bridge circuit.

Feature 1 | High Sound Quality with Full-Digital Architecture This product adopts a fully digital audio output architecture that does not rely on any analog circuitry. Its proprietary output method combined with differential drive technology effectively suppresses noise generated during speaker operation, achieving extremely low noise levels compared to typical Class-D amplifiers. As a result, it delivers high-fidelity, accurate sound reproduction. In particular, distortion is minimized in the low-frequency range, enabling sound reproduction that is closer to the original audio waveform. Feature 2 | Low Power Consumption and Low Heat Generation Compared with conventional Class-D amplifiers, this solution requires approximately half the power consumption to achieve the same sound pressure level. Furthermore, by using GaN FETs (Gallium Nitride FETs) in the H-bridge circuit, power consumption can be reduced by up to 60%. These characteristics provide the following benefits: Extended battery life for battery-powered devices Reduced heat generation Downsizing or elimination of heat sinks This significantly increases design flexibility, especially in compact or sealed products. Feature 3 | Simple Circuit Configuration and Reduced Procurement Risk The external circuitry consists only of an H-bridge circuit (a few transistors and resistors). The system can be built entirely with general-purpose components, enabling: Reduction in component count Lower procurement and inventory risk Reduced implementation cost Additionally, even when components are changed, the system can be adapted simply by switching the middleware, allowing flexible product standardization and design changes.

  • Microcomputer
  • Transistor
  • Software (middle, driver, security, etc.)
  • Sound middleware

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Vehicle-mounted development solution "CRI for Mobility"

We will realize a gentle mobility society through our sound and video technology "CRIWARE."

1: What is CRIWARE for Mobility It is a middleware that gently connects people and cars, characterized by high quality, small size, light weight, low power consumption, and low latency. 2: Balancing development efficiency and high quality In the development of advanced HMI products, "CRIWARE" promotes the division of labor between "design" and "implementation," achieving both efficiency and high quality. 3: Scope of application Driver monitoring systems, car navigation, meter clusters, acceleration suppression devices, vehicle proximity notification systems, electromagnetic horns, ETC on-board units, infotainment, drive recorders, electric sliding doors, electric rear tailgates, active sound control.

  • Software (middle, driver, security, etc.)
  • Other embedded systems (software and hardware)
  • Other network tools
  • Sound middleware

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