On 23 October 2012 17:58, John D. Hays <[email protected]> wrote:
> Just curious if any progress has been made on a fixed point implementation?
>
> Alternatively, some of the ARM based processors are married to a GPU. The
> GPU instruction set can do audio DSP but would need some abstraction for
> various ARM GPUs (OpenGL layer?)
>
I would imagine that OpenCL would be the most appropriate approach. This
can be compiled to run on both CPUs and GPUs to take advantage of
parallelism. I've got a vague plan to have a go at that in the future, but
need to do some more learning first.
While the codec is still being developed it is probably too early to look
at fixed point, but there's a handy guide here:
http://hawksoft.com/blog/2010/floating-point-to-fixed-point-code-conversion-part-3-using-macros-to-bridge-the-conversion-process-419.shtml
which
might be helpful for anyone planning to do this.
Dan MD1CLV
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