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Quickly create an embedded audio product with Cortex-M4 ...
https://dspconcepts.com/blog/quickly-create-embedded-audio-product-cortex-m4-examples
Audio Weaver ® can cut development time by 90%, and the tightened iteration process allows the designer to create innovative algorithms and sounds easily. The ability to tune last minute also cuts production risks. Check this overview videos on Audio Weaver ®. Audio Weaver ® for Cortex M4 - Quick Intro - YouTube.
Cortex-M4 audio effects development board from …
https://www.tindie.com/products/Elemental/cortex-m4-audio-effects-development-board/
This is an open source audio development board with an ARM Cortex-M4 MCU (STM32F405RG), an audio codec (WM8731) and a high impedance pre-amplifier. The microcontroller has DSP instructions and 192KiB of RAM and as such is quite capable of running audio effects such as delay, amplifier simulations, sound synthesis or whatever you can dream up.
Audio Processing on ARM Cortex-M4 for Automotive …
http://caxapa.ru/thumbs/318831/ittiam_automotive_m4_white_paper_v0_8.pdf
Cortex-M4 Audio Decoders MP3 Decode AAC Decode 7 – 10 MHz WMA Decode Audio Encoder MP3 Encode 12 – 15 MHz Audio Post Processing Loudness Compensation 4 – 12 MHz Parametric Equalizer (5 bands) Dynamic Range Control Channel Fader Table 4: Processor resource utilization for audio codecs and post processing on Cortex-M4
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