Release Notes for audio SRC (Source Rate Converter) Library

Copyright 2012 STMicroelectronics

 

Contents

  1. Update History
  2. License

Update History

The SRC Library is an optimized software implementation for audio data source rate conversion (ie. from 44.1KHz to 48KHz).

This library main characteristics are:
  • Rate conversion of 16-bit, stereo streams
  • Conversion ratios are dynamically configurable
  • Downsampling ratio up to 16:1, upsampling ratio unlimited
  • Maximum data buffer size for each SRC call is 192 stereo samples (768 Bytes)
  • SNR is better than 96dB
This Library includes one header file, one library files (.a and .lib) for the following product families:
  • stm32f2_resampling.h/.a/.lib: for STM32F2xx (CM3) products family
  • stm32f4_resampling.h/.a/.lib: for STM32F4xx (CM4) products family

V1.0.0 / 27-January-2012

Main Changes

  • First official version.

License

The use of this Firmware is governed by the terms and conditions of the License Agreement “MCD-ST Image SW License Agreement V2.pdf” available in the root of this folder


For complete documentation on STM32 Microcontrollers visit www.st.com/STM32