Essential Audio Processing Library

ESSENTIAL-AUDIO-PROCESS-LIBRARY

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NXP’s Essential Audio Processing (EAP) library is a bundle of audio processing blocks for enhancing the tonal and spatial perception of sound in audio applications. It includes a range of sound processing algorithms that can be tuned to your application to create a high quality listening experience. The EAP library is complimentary to use with supported NXP devices, and is available in the MCUXpresso SDK in the form of precompiled libraries.

EAP is accompanied by a tuning tool that enables the simulation of the library behavior on a Windows® PC platform. The tuning tools allow you to listen and compare audio effects to find the right tuning parameter settings, and export the parameters to a compliant C header file.

Software Details

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Diagram

Essential Audio Processing Library Block Diagram

Essential Audio Processing Library Block Diagram
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Features

  • Sound processing algorithms for:
    • Tone Generator
    • Speaker equalizer
    • 3D Virtualization: Concert Sound
    • Volume Control
    • User Equalizer
    • Bass Enhancement (Pure Bass or Digital Bass Enhancement)
    • Auto Volume Leveler
    • Loudness Maximizer
    • Treble Enhancement
    • Peak Limiter
    • RMS Limiter
    • Parametric Spectrum Analyzer
    • Crossover 2-Bands
  • Supports mono or stereo raw audio data at 16 or 32 bits and up to 96 kHz
  • Tuning tool provided for simulating EAP behavior and exporting parameters

Supported Devices

  • i.MX-RT500: i.MX RT500 Crossover MCU with Arm® Cortex®-M33, DSP and GPU Cores
  • i.MX-RT600: i.MX RT600 Crossover MCU with Arm® Cortex®-M33 and DSP Cores
  • i.MX-RT1050: i.MX RT1050 Crossover MCU with Arm® Cortex®-M7 Core
  • i.MX-RT1060: i.MX RT1060 Crossover MCU with Arm® Cortex®-M7 Core
  • i.MX-RT1064: i.MX RT1064 Crossover MCU with Arm® Cortex®-M7 Core
  • i.MX-RT1160: i.MX RT1160 Crossover High-Performance MCU with Arm® Cortex®-M7 and Cortex-M4 Cores
  • i.MX-RT1170: i.MX RT1170 First GHz Crossover MCU with Arm® Cortex®-M7 and Cortex-M4 Cores
  • LPC55S6x: High Efficiency Arm® Cortex®-M33-Based Microcontroller Family

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