4.Drag the Dry Out fader up. Notice the audible change in output as the balance between the Wet Out and Dry Out values changes.
Tip: If you are experiencing difficulty previewing processing in
5.Drag the Response delay slider to the right. Notice the audible change in the reverb’s delay.
The Acoustic Mirror dialog contains four tabs: General, Envelope, Summary, and Recover. Each tab contains controls that allow you to precisely configure the effect as well as recover custom impulses. Notice that the Acoustic Mirror dialog contains the preset and preview controls found in all of the Sound Forge process and effect dialogs. For more information, see Applying presets on page 171 and Previewing processed audio on page 173.
General tab controls
The following sections describe all controls located in the General tab.
Control | Description |
Impulse | The Impulse |
| used. Clicking Browse displays the Open Impulse File dialog and allows you to locate an |
| impulse file from your local system or network. |
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|
Response width | You can use the Response width slider to create some simple stereo expansion and stereo |
| collapsing effects. This control’s default setting of 50 represents normal stereo operation and is |
| recommended to maintain the stereo field of the impulse response. A higher setting expands |
| the stereo field, but may result in an unnatural sounding effect. Lowering this setting narrows |
| the stereo field. A setting of 0 is essentially mono. |
|
|
Response delay | The Response delay slider controls the time, in milliseconds, that elapses between the dry |
| signal and the processed output. This control can be used to create interesting effects and add |
| new dimensions to an acoustic signature. Configuring this control with a positive value results |
| in the processed output following the dry output. A negative value results in the processed |
| output preceding the dry signal, or a |
|
|
Pan (left to right) | The Pan slider controls the balance between the left and right channels in stereo files. The |
| default value is 0 and indicates a typical center position. |
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|
Dry Out | The Dry Out fader controls the amount of unprocessed signal mixed into the output. |
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|
Wet Out | The Wet Out fader controls the amount of processed signal mixed into the output. |
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Apply envelope and limit decay | When you select this check box, the length of the impulse is limited to the time specified in the |
to (seconds) | adjacent box. Limiting the length of an impulse file shortens the decay of the reverberation and |
| decreases the amount of processing required. |
| In addition, selecting this check box results in the impulse fading according to the Envelope |
| Graph configured on the dialog’s Envelope tab. For more information, see Envelope Graph on |
| |
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|
Acoustic Mirror high- and | |
shelf start frequency | the impulse. Notice that you can adjust the cutoff frequency and boost/attenuation of each |
| filter independently. |
|
|
Convert mono to stereo | Selecting the Convert mono to stereo check box converts a mono signal to stereo output. If |
| the impulse file is in stereo, selecting this check box imparts a |
| mono input. |
|
|
Quality/speed | The Quality/Speed slider allows you to strike a balance between the quality and speed of the |
| audio processing. Lowering this value immediately affects the frequency response of the |
| impulse. The processed signal sounds dull and high frequencies sound unnatural. At very low |
| values, the length of the impulse is shortened. When this control is set to a high value, the |
| audio quality is excellent, but the processing takes longer. |
| If you are experiencing difficulty previewing processing in |
| speed value. However, you must return this value to 5 prior to actually processing the file to |
| output the highest possible quality. |
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|
216 CHAPTER 13