Programmer Guide/SPU Reference/FFTPAR: Difference between revisions
From STX Wiki
Jump to navigationJump to search
(initial import) |
No edit summary |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
{{DISPLAYTITLE:{{SUBPAGENAME}}}} | {{DISPLAYTITLE:{{SUBPAGENAME}}}} | ||
{{SPAtomTemplate}} | |||
====FFTPAR - fft parameters==== | ====FFTPAR - fft parameters==== | ||
| Line 23: | Line 24: | ||
{| | {| | ||
|- | |- | ||
| | |LFFT | ||
|length of fast Fourier transform according to frame length (minimum power of 2 (= 2M ) greater/equal frame length) | |length of fast Fourier transform according to frame length (minimum power of 2 (= 2M ) greater/equal frame length) | ||
|- | |- | ||
Latest revision as of 16:14, 13 October 2015
FFTPAR - fft parameters
This module computes the basic FFT parameters (length and bandwidth) according to the signal parameters (frame length and sampling rate).
Usage:
FFTPAR X SR
Usage:
| X | frame length (number) or frame buffer (vector) |
| SR | sampling rate in Hz |
Outputs:
| LFFT | length of fast Fourier transform according to frame length (minimum power of 2 (= 2M ) greater/equal frame length) |
| DF | bandwidth (frequency resolution) of Fourier spectrum (= SR / LFFT) |
