public class ReverbType extends Object
ReverbTypeclass provides methods for accessing various reverberation settings to be applied to an audio signal.
Reverberation simulates the reflection of sound off of the walls, ceiling, and floor of a room. Depending on the size of the room, and how absorbent or reflective the materials in the room's surfaces are, the sound might bounce around for a long time before dying away.
The reverberation parameters provided by
of the delay time and intensity of early reflections, the delay time and
intensity of late reflections, and an overall decay time.
Early reflections are the initial individual low-order reflections of the
direct signal off the surfaces in the room.
The late Relections are the dense, high-order reflections that characterize
the room's reverberation.
The delay times for the start of these two reflection types give the listener
a sense of the overall size and complexity of the room's shape and contents.
The larger the room, the longer the reflection delay times.
The early and late reflections' intensities define the gain (in decibels) of the reflected
signals as compared to the direct signal. These intensities give the
listener an impression of the absorptive nature of the surfaces and objects
in the room.
The decay time defines how long the reverberation takes to exponentially
decay until it is no longer perceptible ("effective zero").
The larger and less absorbent the surfaces, the longer the decay time.
The set of parameters defined here may not include all aspects of reverberation as specified by some systems. For example, the Midi Manufacturer's Association (MMA) has an Interactive Audio Special Interest Group (IASIG), which has a 3-D Working Group that has defined a Level 2 Spec (I3DL2). I3DL2 supports filtering of reverberation and control of reverb density. These properties are not included in the JavaSound 1.0 definition of a reverb control. In such a case, the implementing system should either extend the defined reverb control to include additional parameters, or else interpret the system's additional capabilities in a way that fits the model described here.
If implementing JavaSound on a I3DL2-compliant device:
The following table shows what parameter values an implementation might use for a representative set of reverberation settings.
Reverberation Types and Parameters
|Type||Decay Time (ms)||Late Intensity (dB)||Late Delay (ms)||Early Intensity (dB)||Early Delay(ms)|
|Modifier||Constructor and Description|
Constructs a new reverb type that has the specified reverberation parameter values.
|Modifier and Type||Method and Description|
Indicates whether the specified object is equal to this reverb type, returning
Obtains the decay time, which is the amount of time over which the late reflections attenuate to effective zero.
Returns the early reflection delay time in microseconds.
Returns the early reflection intensity in decibels.
Returns the late reflection delay time in microseconds.
Returns the late reflection intensity in decibels.
Obtains the name of this reverb type.
Finalizes the hashcode method.
protected ReverbType(String name, int earlyReflectionDelay, float earlyReflectionIntensity, int lateReflectionDelay, float lateReflectionIntensity, int decayTime)
name- the name of the new reverb type, or a zero-length
earlyReflectionDelay- the new type's early reflection delay time in microseconds
earlyReflectionIntensity- the new type's early reflection intensity in dB
lateReflectionDelay- the new type's late reflection delay time in microseconds
lateReflectionIntensity- the new type's late reflection intensity in dB
decayTime- the new type's decay time in microseconds
public String getName()
public final int getEarlyReflectionDelay()
public final float getEarlyReflectionIntensity()
public final int getLateReflectionDelay()
public final float getLateReflectionIntensity()
public final int getDecayTime()
public final boolean equals(Object obj)
trueif the objects are identical.
public final int hashCode()
public final String toString()
Stringrepresentation of the reverb type, including its name and its parameter settings. The exact contents of the string may vary between implementations of Java Sound.
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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