STM32 Audio processing SW library

The audio processing components for STM32F4 consists in a comprehensive set of high-quality efficient software libraries ready to be embedded into many kinds of audio appliances. All modules are delivered with internal 32-bits processing and support either 16 or 32 bits I/O buffers.

Key Features

  • The STM32F4 audio processing components provide the following capabilities:
    • Sampling Rate Converter:
    • SRC236 supporting ratios 2, 3, 6, 1/2,1/3, 1/6, 3/2 and 2/3
    • SRC441 for specific 44.1->48 kHz conversion (10 ms framing)
  • OmniSurround Stereo Widener:
    • Audio virtualization for a 1.0/2.0 input stream to a widened 2.0 output stream
  • OmniSurround Multichannel Virtualizer:
    • Audio virtualization for 5.1/7.1 input stream to a virtualized 2.0 output stream
  • Graphical Equalizer:
    • 10-band graphical equalizer for 48 kHz input signal
  • Generic Biquad filters
  • Bass Manager (including compressor & limiter)
  • Smart Volume Control (including compressor)

Design

Technical Documentation

Product Specifications
Description Version Size
DB2497 DB2497: STM32F4 audio processing components 1.0 115 KB
Technical Notes & Articles
Description Version Size
TN1199 TN1199: STM32F4 Audio Processing 1.0 219 KB

Legal

License Agreement
Description Version Size
SLA0048 SLA0048: Mix Liberty + OSS + 3rd- party V1 - SOFTWARE LICENSE AGREEMENT 2.19 113 KB

Get Software

Part Number Software Version Marketing Status Supplier Order from ST
STM32-AUDIO100A 2.2.0 Active ST

 

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