audioengine3d.html

JAVA多媒体开发类库说明

</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filterType</CODE> - denotes type of filtering (on no filtering) applied
 to all sample based on distance between listener and sound.<DD><CODE>dist</CODE> - is an attenuation array of distance and low-pass filter values.<DD><CODE>filterCutoff</CODE> - array of frequency cutoff<DT><B>See Also:</B><DD><A HREF="../../../../javax/media/j3d/AuralAttributes.html#setDistanceFilter(float[], float[])"><CODE>AuralAttributes.setDistanceFilter(float[] distance,
       float[] frequencyCutoff)</CODE></A>, 
<A HREF="../../../../javax/media/j3d/AuralAttributes.html#setDistanceFilter(javax.vecmath.Point2f[])"><CODE>AuralAttributes.setDistanceFilter(Point2f[] attenuation)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setFrequencyScaleFactor(float)"><!-- --></A><H3>
setFrequencyScaleFactor</H3>
<PRE>
public void <B>setFrequencyScaleFactor</B>(float&nbsp;scaleFactor)</PRE>
<DL>
<DD>Set frequency scale factor for current aural attribute applied to all 
 samples.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html#setFrequencyScaleFactor(float)">setFrequencyScaleFactor</A></CODE> in interface <CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html" title="interface in javax.media.j3d">AudioDevice3D</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>scaleFactor</CODE> - frequency scale factor applied to samples normal
 playback rate.<DT><B>See Also:</B><DD><A HREF="../../../../javax/media/j3d/AuralAttributes.html#setFrequencyScaleFactor(float)"><CODE>AuralAttributes.setFrequencyScaleFactor(float)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="setVelocityScaleFactor(float)"><!-- --></A><H3>
setVelocityScaleFactor</H3>
<PRE>
public void <B>setVelocityScaleFactor</B>(float&nbsp;scaleFactor)</PRE>
<DL>
<DD>Set velocity scale factor for current aural attribute applied to all 
 samples when Doppler is calculated.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html#setVelocityScaleFactor(float)">setVelocityScaleFactor</A></CODE> in interface <CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html" title="interface in javax.media.j3d">AudioDevice3D</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>scaleFactor</CODE> - scale factor applied to postional samples'
 listener-to-soundSource velocity.
 playback rate.<DT><B>See Also:</B><DD><A HREF="../../../../javax/media/j3d/AuralAttributes.html#setVelocityScaleFactor(float)"><CODE>AuralAttributes.setVelocityScaleFactor(float)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getNumberOfChannelsUsed(int)"><!-- --></A><H3>
getNumberOfChannelsUsed</H3>
<PRE>
public int <B>getNumberOfChannelsUsed</B>(int&nbsp;index)</PRE>
<DL>
<DD>Get number of channels used by a particular sample on the audio device.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html#getNumberOfChannelsUsed(int)">getNumberOfChannelsUsed</A></CODE> in interface <CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html" title="interface in javax.media.j3d">AudioDevice3D</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - device specific reference number to device driver sample
<DT><B>Returns:</B><DD>number of channels currently being used by this sample.</DL>
</DD>
</DL>
<HR>

<A NAME="getNumberOfChannelsUsed(int, boolean)"><!-- --></A><H3>
getNumberOfChannelsUsed</H3>
<PRE>
public int <B>getNumberOfChannelsUsed</B>(int&nbsp;index,
                                   boolean&nbsp;muteFlag)</PRE>
<DL>
<DD>Get number of channels that would be used by a particular sample on
 the audio device given the mute flag passed in as a parameter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html#getNumberOfChannelsUsed(int, boolean)">getNumberOfChannelsUsed</A></CODE> in interface <CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html" title="interface in javax.media.j3d">AudioDevice3D</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - device specific reference number to device driver sample<DD><CODE>muteFlag</CODE> - denotes the mute state to assume while executing this
 query. This mute value does not have to match the current mute state
 of the sample.
<DT><B>Returns:</B><DD>number of channels that would be used by this sample if it
 were playing.</DL>
</DD>
</DL>
<HR>

<A NAME="getSampleDuration(int)"><!-- --></A><H3>
getSampleDuration</H3>
<PRE>
public long <B>getSampleDuration</B>(int&nbsp;index)</PRE>
<DL>
<DD>Get length of time a sample would play if allowed to play to completion.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html#getSampleDuration(int)">getSampleDuration</A></CODE> in interface <CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html" title="interface in javax.media.j3d">AudioDevice3D</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - device specific reference number to device driver sample
<DT><B>Returns:</B><DD>length of sample in milliseconds</DL>
</DD>
</DL>
<HR>

<A NAME="getStartTime(int)"><!-- --></A><H3>
getStartTime</H3>
<PRE>
public long <B>getStartTime</B>(int&nbsp;index)</PRE>
<DL>
<DD>Get time this sample begun playing on the audio device.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html#getStartTime(int)">getStartTime</A></CODE> in interface <CODE><A HREF="../../../../javax/media/j3d/AudioDevice3D.html" title="interface in javax.media.j3d">AudioDevice3D</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - device specific reference number to device driver sample
<DT><B>Returns:</B><DD>system clock time sample started</DL>
</DD>
</DL>
<HR>

<A NAME="getSampleList()"><!-- --></A><H3>
getSampleList</H3>
<PRE>
protected java.util.ArrayList <B>getSampleList</B>()</PRE>
<DL>
<DD><B>Deprecated.</B>&nbsp;<I>unsafe to get reference to samples list with this method.
 It's better to directly reference samples list within a synchronized
 block which also contains calls to .getSample(index).</I>
<P>
<DD>Get reference to the array list of samples
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>reference to samples list</DL>
</DD>
</DL>
<HR>

<A NAME="getSampleListSize()"><!-- --></A><H3>
getSampleListSize</H3>
<PRE>
public int <B>getSampleListSize</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getSample(int)"><!-- --></A><H3>
getSample</H3>
<PRE>
public <A HREF="../../../../com/sun/j3d/audioengines/Sample.html" title="class in com.sun.j3d.audioengines">Sample</A> <B>getSample</B>(int&nbsp;index)</PRE>
<DL>
<DD>Get specific sample from indexed sample list
 Checks for valid index before attempting to get sample from list.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - device specific reference number to device driver sample
<DT><B>Returns:</B><DD>reference to sample; returns null if index out of range.<DT><B>Since:</B></DT>
  <DD>Java 3D 1.2.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getAuralParameters()"><!-- --></A><H3>
getAuralParameters</H3>
<PRE>
public <A HREF="../../../../com/sun/j3d/audioengines/AuralParameters.html" title="class in com.sun.j3d.audioengines">AuralParameters</A> <B>getAuralParameters</B>()</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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