AEExpanderFilter Class Reference
An expander/noise gate filter. More...
#import <AEExpanderFilter.h>
Inherits <NSObject>, and <AEAudioFilter>.
Instance Methods | |
| (id) | - init |
| Initialise. | |
| (void) | - assignPreset: |
| Apply a preset. | |
| (void) | - startCalibratingWithCompletionBlock: |
| Calibrate the threshold. | |
 Instance Methods inherited from <AEAudioFilter> | |
| (void) | - setupWithAudioController: |
| Perform setup, to prepare for playback. | |
| (void) | - teardown |
| Clean up resources. | |
Properties | |
| float | ratio |
| double | threshold |
| double | hysteresis |
| NSTimeInterval | attack |
| NSTimeInterval | decay |
| Properties inherited from <AEAudioFilter> | |
| AEAudioFilterCallback | filterCallback |
| Reference to the filter callback. | |
Detailed Description
An expander/noise gate filter.
This class implements an expander filter, which reduces audio levels beneath a set threshold in order to hide background noise.
Method Documentation
| - (id) init |
Initialise.
| - (void) assignPreset: | (AEExpanderFilterPreset) | preset |
Apply a preset.
| - (void) startCalibratingWithCompletionBlock: | (void) | block |
Calibrate the threshold.
This method enters calibration mode, watching the input level and setting the threshold to the maximum level seen. The user should be silent during this period, to get an accurate measure of the noise floor.
- Parameters
-
block Block to perform when calibration is complete
Property Documentation
|
readwritenonatomicassign |
|
readwritenonatomicassign |
|
readwritenonatomicassign |
|
readwritenonatomicassign |
|
readwritenonatomicassign |
The documentation for this class was generated from the following file: