Search Results for "dft"

Zweidimensionale DFT / FFT für Grafiken im Bitmapformat mit Filtereditor

In this project, a perfect PCM sine wave is one that contains a single frequency at 0 dBTP and no error harmonics at all. A bit-perfect PCM sine wave has error harmonics due to encoding quantization, but they are at the minimum level possible for the chosen encoding. The generated wave files hold a sequence of one or more complete copies of a repeating pattern. A file containing a single pattern can be played in a loop to extend the play time. Because most audio players don't loop...

A collection of projects I have developed in the past years. It contains: - a tool to compute height and angle of objects above horizon - a proof of concept of DFT and DWT to reduce audio files - a quantitative library with OOorg interface for Calc

...In CQT-FW we have the same frequency resolution as CQT, but with fixed length windows in time, what leads to a constant time resolution as well. And more, time and frequency resolution are not dependent like in CQT end DFT transforms. We also propose a post processing witch eliminate the high order harmonics, leaving only the fundamental frequencies. The transform got good results in a good range of frequencies, but still have problems in low frequencies.