Propeller DSP Software

ngl

·· In a relatively recent post, Digital Filter Potpourri, BR listed prior threads which, in some fashion, related to digital signal processing.· Included was a reference to my thread· on the Fast Hartley Transform.· I am starting a new thread with attached pasm coded objects which can be the basis of a propeller software·DSP system.· The core of this system is the Hartley Transform.· FHT.spin is a general purpose FHT method.· Utilities.spin includes list-processing methods, such as shift, rotate, reverse, reduce, delete, take, join, move, and scale.· These methods provide the means to pre- and post-process data in an application.· FFT.spin uses embedded fht code to produce real, imaginary, power spectrum, and magnitude of input datasets in a single loop.· The Convolution and Autocorrelation apps, with embedded fht code,·run at least 15X faster than their 100% spin counterparts.

BR's filters·and Phil Pilgrim's Goertzel· waveform analyzer could also be considered as components of a general purpose dsp system.

Nick

Kye

Oh snapz!

Too bad I'm not doing DSP stuff.

Thanks for the contribution NGL!

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Nyamekye,

BR

Sweeeet. I gotta make time to try this out...pesky day job.

Thanks Nick.