Hi all, I'm trying to port codec2 to a Freescale microcontroller. This board has 120 MHz CPU and a floating point unit. At the moment I would need 110% CPU speed for decoding codec2 in real time. In the YouTube Video "Embedding Codec 2: open source speech coding on a low-cost microcontroller" David Rowe presented an implementation on a STM32F4 with encoding and decoding in real-time. He mentioned that some optimizations are needed for this processing speed. I couldn't find something like that in the stm32 folder, but some switches over defines for calculations in time- or frequency-domain in the processing chain. Also the filter length could be reduced for low perfomance cpus.
Are there optimised settings for microcontrollers? Do you use arm_math.h for arm specific sin/cos/fft functions? Thanks in advance, Stefan ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Freetel-codec2 mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freetel-codec2
