Firelight Technologies FMOD Studio API
FMOD_DSP_ITECHO
Parameter types for the FMOD_DSP_TYPE_ITECHO filter.
This is effectively a software based echo filter that emulates the DirectX DMO echo effect. Impulse tracker files can support this, and FMOD will produce the effect on ANY platform, not just those that support DirectX effects!
C/C++ Syntax
typedef enum {
FMOD_DSP_ITECHO_WETDRYMIX,
FMOD_DSP_ITECHO_FEEDBACK,
FMOD_DSP_ITECHO_LEFTDELAY,
FMOD_DSP_ITECHO_RIGHTDELAY,
FMOD_DSP_ITECHO_PANDELAY
} FMOD_DSP_ITECHO;
JavaScript Syntax
FMOD.DSP_ITECHO_WETDRYMIX
FMOD.DSP_ITECHO_FEEDBACK
FMOD.DSP_ITECHO_LEFTDELAY
FMOD.DSP_ITECHO_RIGHTDELAY
FMOD.DSP_ITECHO_PANDELAY
Values
FMOD_DSP_ITECHO_WETDRYMIX
(Type:float) - Ratio of wet (processed) signal to dry (unprocessed) signal. Must be in the range from 0.0 through 100.0 (all wet). Default = 50.
FMOD_DSP_ITECHO_FEEDBACK
(Type:float) - Percentage of output fed back into input, in the range from 0.0 through 100.0. Default = 50.
FMOD_DSP_ITECHO_LEFTDELAY
(Type:float) - Delay for left channel, in milliseconds, in the range from 1.0 through 2000.0. Default = 500 ms.
FMOD_DSP_ITECHO_RIGHTDELAY
(Type:float) - Delay for right channel, in milliseconds, in the range from 1.0 through 2000.0. Default = 500 ms.
FMOD_DSP_ITECHO_PANDELAY
(Type:float) - Value that specifies whether to swap left and right delays with each successive echo. Ranges from 0.0 (equivalent to FALSE) to 1.0 (equivalent to TRUE), meaning no swap. Default = 0. CURRENTLY NOT SUPPORTED.
Remarks
Note. Every time the delay is changed, the plugin re-allocates the echo buffer. This means the echo will dissapear at that time while it refills its new buffer.
Larger echo delays result in larger amounts of memory allocated.
As this is a stereo filter made mainly for IT playback, it is targeted for stereo signals.
With mono signals only the FMOD_DSP_ITECHO_LEFTDELAY is used.
For multichannel signals (>2) there will be no echo on those channels.
See Also
Version 1.10.03 Built on Feb 1, 2018