
A groundbreaking audio library engineered explicitly for low-end microcontrollers, targeting the automotive sector, supports real-time audio processing using CPU DSP extensions, focused on the needs of electric and hybrid vehicles, and reduces the need for Audio DSP, cutting down total BOM cost and power footprint.

Product description
Currently supported end-user functions
- Audio Playback and Modulation
- Acoustic Vehicle Alert System
- Audio Mixing
Supported architectures
- ARM Cortex-M4
- NXP, TI, Renesas, STMicro
Product facts
System requirements
- Worst case CPU load: 60% @ 200 MHz
- Supports single-core / multi-core
- RAM footprint: 1.1 MByte
- ROM footprint: 0.25 MByte
Automotive standards compliance
- ASIL-B compliant
- Classic AUTOSAR compliant
- UNECE Regulation No. 138.01. compliant

Future features
- Provided as an SDV Vehicle Os feature.
- Dynamic thermal derating.
- Dynamic equalization.
- Noise removal and cancelation.
- 3D Sound Modulation.
- Synthetic acoustic signals generation.
- Audio transitions and effects.
- Data flash emulated simple file table.
Future audio formats
MP3, OGG, MA4
Future supported architectures
- TriCore TC4x, TC39x
- RH850 U2B, U2C
Audio Playback & Modulation

Audio playback source
- Playback from audio file or online audio stream (network-based or line-in-based).
- Customized profiles for different vehicle variants, system modes, and user personalization.
- Real-time audio playback for enhanced user experience.
Supported features
- Audio amplitude, gain, and frequency modulation
- Supports PCM and WAV file formats
- Supports audio stream playback from AVB and TSN
- Specific handling of horn sounds
Acoustic Vehicle Alert System

AVAS supported vehicles
- Supports electric and hybrid vehicles.
- Engine sound emulation at low speeds.
- Parametric emulation based on vehicle state.
Supported features
- Handling external loud (rear / front) speaker.
- Handling reverse gear.
- Supports engine cylinders and vehicle speed.
- Custom OEM additional parameters.
Audio Mixer

Audio mixer features
- Mixing audio files, network streams, and line-in streams.
- Mixing of emotional sounds with high-priority signals.
- Supports simple audio file table.
Supported features
- Playback and mixing up to 10 audio files concurrently.
- Playback and mixing up to 4 audio streams concurrently.
- Adjustable mixing to support higher priority warnings.