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48 lines
2.4 KiB
Plaintext
48 lines
2.4 KiB
Plaintext
{{DISPLAYTITLE:_SNDBAL}}
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The [[_SNDBAL]] statement attempts to set the balance or 3D position of a sound.
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{{PageSyntax}}
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:::[[_SNDBAL]] {{Parameter|handle&}}[, {{Parameter|x!}}][, {{Parameter|y!}}][, {{Parameter|z!}}]
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{{PageDescription}}
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*Attempts to position a sound in 3D space, or as close to it as the underlying software libraries allow. In some cases, this will be true 3D positioning, in others, a mere volume adjustment based on distance alone.
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:::*x distance values go from left(negative) to right(positive).
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:::*y distance values go from below(negative) to above(positive).
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:::*z distance values go from behind(negative) to in front(positive).
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*Omitted x, y or z {{KW|SINGLE}} values are set to 0.
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*By setting the x value to -1 or 1 it plays the sound at full volume from the appropriate speaker.
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*Sounds at a distance of 1 or -1 are played at full volume. Sounds further than a distance of 1000 cannot be heard.
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*The volume decreases linearly (at a constant gradient) over distance. Half volume = 500.
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* Opened sound files must have the "VOL" capability to use this statement.
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* The sound file should have the "SYNC" capability when more than one sound is being used at the same time!
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* An "'''ILLEGAL FUNCTION CALL'''" error can occur if another sound is using the primary or same channel position.
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{{TextStart}} QB64 supports the following sound file formats ('''Bold is a guaranteed capability'''):
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WAV = "'''VOL,SYNC,LEN''',PAUSE" [http://www.rarewares.org/ogg-oggdropxpd.php Free WAV to OGG GUI converter]
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OGG = "VOL,SYNC,LEN,PAUSE" [http://www.rarewares.org/ogg-oggenc.php Free WAV to OGG converter]
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AIF = "VOL,SYNC,LEN,PAUSE"
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RIF = "VOL,SYNC,LEN,PAUSE"
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VOC = "VOL,SYNC,LEN,PAUSE"
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MID = "'''VOL'''"
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MOD = "VOL,PAUSE"
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MP3 = "'''VOL''',PAUSE,SETPOS" [http://www.freemp3wmaconverter.com/index.html Free WMA, MP3 and OGG converter]
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''Note:'' {{Cb|_SNDBAL}} only affects MP3 volume. Sound will reside in main channel.
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{{TextEnd}}
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{{PageExamples}}
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{{CodeStart}} '' ''
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h& = {{Cl|_SNDOPEN}}("LOL.wav", "SYNC,VOL")
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{{Cl|_SNDBAL}} h&, 1
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{{Cl|_SNDPLAY}} h& '' ''
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{{CodeEnd}}
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{{PageSeeAlso}}
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*{{KW|_SNDOPEN}}, {{KW|_SNDVOL}}, {{KW|_SNDLIMIT}}
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{{PageNavigation}} |