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Smart Post-Processing (SPP) is a control algorithm for removing distortion in post-processing systems. Its most complex part is an audio quality improvement checkout routine. We have shown that even when using the simplest algorithm for this purpose results are satisfactory. On the other side it allows implementation of SPP on any commercial DSP platform, even with very restricted resources.
Starting from mathematical model, following electric guitar effects are implemented: delay, chorus and flanger. Implementation is done on a commercial fixed point single core DSP processor, which has total 24k words data memory, 2k program memory and processor speed of 150 MIPS.
Running different audio post-processing techniques simultaneously is a challenging problem due to the headroom incompatibility which is causing overall output distortion. Reducing overall input gain, as a traditional approach for removing the distortion, reduces the output quality. We propose a Smart Post-Processing (SPP) algorithm which monitors all post-processing techniques and dynamically adjusts...
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