2018-04-22 15:55:55 +00:00
< HTML >
< HEAD >
< META NAME = "GENERATOR" Content = "SOURCEDOC.EXE" >
< META HTTP-EQUIV = "Content-Type" content = "text/html; charset=iso-8859-1" >
< TITLE > FSOUND_DSP_GetSpectrum< / TITLE >
< STYLE >
#flush {margin-left: -10p; margin-right: -0p}
#buttonbar {color: white}
< / STYLE >
< / HEAD >
< BODY TOPMARGIN = 0 BGPROPERTIES = "FIXED" BGCOLOR = "white" >
< FONT FACE = "ARIAL" >
< SPAN ID = "flush" >
< A NAME = "SEE ALSO" >
< TABLE WIDTH = "100%" COLS = 2 BORDER = 0 BGCOLOR = "#000000" >
< TR ALIGN = RIGHT >
< TD ALIGN = LEFT >
< IMG SRC = "banner03.gif" WIDTH = "88" HEIGHT = "31" BORDER = 0 >
< / TD >
< TD ALIGN = RIGHT VALIGN = TOP >
< FONT FACE = "ARIAL" SIZE = "2" >
< A ID = buttonbar HREF = "FSOUND_DSP_GetSFXUnit.html" >
< IMG SRC = "u_prev.gif" WIDTH = "71" HEIGHT = "16" BORDER = 0 ALT = "Previous Topic" >
< / A >
< A ID = buttonbar HREF = "FSOUND.html" >
< IMG SRC = "u_index.gif" WIDTH = "47" HEIGHT = "16" BORDER = 0 ALT = "Index" >
< / A >
< A ID = buttonbar HREF = "FSOUND_DSP_MixBuffers.html" >
< IMG SRC = "u_next.gif" WIDTH = "48" HEIGHT = "16" BORDER = 0 ALT = "Next Topic" >
< / A >
< / FONT > < / TD > < TD WIDTH = 15 > < / TD >
< / TR >
< / TABLE >
< / A >
< / SPAN >
< A HREF = "FSOUND.html#Functions" > < H5 > [API function]< / A > < / H5 >
< H2 > < A NAME = "FSOUND_DSP_GetSpectrum" > FSOUND_DSP_GetSpectrum< / A > < / H2 >
Function to return a pointer to the current spectrum buffer. The buffer contains 512 floating< BR >
point values that represent each frequency band's amplitude for the current FMOD SoundSystem< BR >
mixing buffer. The range of frequencies covered by the spectrum is 1 to the nyquist frequency< BR >
or half of the output rate. So if the output rate is 44100, then frequencies provided are up< BR >
to 22050. (entry 511)< BR >
< P >
< B > F_FLOAT_API * F_API < / B > < B > < / B > < B > FSOUND_DSP_GetSpectrum< / B > < B > (< / B > < BR >
< B > );< / B > < BR >
< H3 > Return Value< / H3 >
A pointer to a buffer containing 512 floats.< BR >
< H3 > Remarks< / H3 >
Note that hardware sounds, MIDI, files do not register on the spectrum graph as they are not run through FMODs DSP system.< BR >
Note that to use this you have to turn on the FSOUND FFT DSP unit. This is achieved by calling FSOUND_DSP_GetFFTUnit, then using FSOUND_DSP_SetActive to turn it on.< BR >
___________________< BR >
Supported on the following platforms : Win32, WinCE, Linux, Macintosh, XBox, GameCube< BR >
< H3 > See Also< / H3 >
< A HREF = "FSOUND_DSP_GetFFTUnit.html" > FSOUND_DSP_GetFFTUnit< / A >
,
< A HREF = "FSOUND_DSP_SetActive.html" > FSOUND_DSP_SetActive< / A >
< HR > < BR > < FONT SIZE = "-2" > This document copyright © Firelight Technologies, Pty, Ltd, 1999-2002. All rights reserved.< / FONT > < BR >
< FONT SIZE = "-2" > Generated Thu Dec 15 17:31:29 2005
by SourceDoc v0.10, the automated source code documenter.< / FONT > < BR >
< / BODY >
< / HTML >
