HU/getSoundFFTData

From Multi Theft Auto: Wiki
Revision as of 14:11, 17 July 2018 by Surge (talk | contribs)
Jump to navigation Jump to search

Ez a funkció megkapja a gyors Fourier transzformációt, és létrehoz egy táblázatot az aktuális audiokeret összes frekvenciájáról, amely a spektrum mélyhangján kezdődik, majd halad a középtől a magas értékekig. Ez lehetővé teszi például a vizualizálást.

Szintaxis

table getSoundFFTData ( element sound, int iSamples [, int iBands = 0 ] )

OOP Syntax Help! I don't understand this!

Method: sound:getFFTData(...)


Required Arguments

  • sound: a sound element that is created using playSound or playSound3D. Streams are also supported
  • iSamples: allowed samples are 256, 512, 1024, 2048, 4096, 8192 and 16384.

Optional Arguments

  • iBands: post processing option allows you to split the samples into the desired amount of bands or bars so if you only need 5 bars this saves a lot of cpu power compared to trying to do it in Lua.

Returns

Returns a table of iSamples/2 (or iBands if iBands is used) floats representing the current audio frame. Returns false if the sound is not playing yet or hasn't buffered in the case of streams.

Example

Click to collapse [-]
Client
soundHandler = playSound ( "sound.wav" )

function onSoundPlayRender ( )
    if ( soundHandler ) then
        local soundFFT = getSoundFFTData ( soundHandler, 2048, 256 )
	if ( soundFFT ) then
            for i = 0, 255 do -- Data starts from index 0
                dxDrawRectangle ( i, 0, 1, math.sqrt ( soundFFT[i] ) * 256 )
            end
        end
    end
end
addEventHandler ( "onClientRender", getRootElement(), onSoundPlayRender )

Changelog

Version Description
1.3.2 Added player element to use a players voice

See Also

Retrieved from "https://wiki.multitheftauto.com/wiki/HU/getSoundFFTData?oldid=55890"