<TD>fx handle generated by FSOUND_FX_Enable, to set echo parameters for.<BR>
</TD><TRVALIGN=top><TD><I>WetDryMix</I></TD>
<TD>Ratio of wet (processed) signal to dry (unprocessed) signal. Must be in the range from 0 through 100 (all wet). <BR>
</TD><TRVALIGN=top><TD><I>Feedback</I></TD>
<TD>Percentage of output fed back into input, in the range from 0 through 100. The default value is 0. <BR>
</TD><TRVALIGN=top><TD><I>LeftDelay</I></TD>
<TD>Delay for left channel, in milliseconds, in the range from 1 through 2000. The default value is 333 ms. <BR>
</TD><TRVALIGN=top><TD><I>RightDelay</I></TD>
<TD>Delay for right channel, in milliseconds, in the range from 1 through 2000. The default value is 333 ms. <BR>
</TD><TRVALIGN=top><TD><I>PanDelay</I></TD>
<TD>Value that specifies whether to swap left and right delays with each successive echo. The default value is FALSE, meaning no swap. Possible values are defined as TRUE or FALSE. <BR>
</TD></TABLE>
<H3>Return Value</H3>
On success, TRUE is returned.<BR>
On failure, FALSE is returned.<BR>
<H3>Remarks</H3>
Make sure you have enabled this effect with FSOUND_FX_Enable and FSOUND_FX_ECHO before using this function.<BR>