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188
USING ACOUSTIC MIRROR AND WAVE HAMMER CHP. 12
Wet Out
This control is identical to the Wet Out fader on the General tab. For more information, see Wet Out on page
185.
Quality/speed
This control is identical to the Quality/speed check box on the General tab. For more information, see Quality/
speed on page 186.
Recover tab controls
The Recover tab is used in creating your own impulse files. For more information, see Creating impulse files on
page 189. The following section describes all controls located on the
Recover tab.
Recorded file
The Recorded file box allows you to select the file containing the test tone recorded in the field. You can
enter the path directly into the box or click
Browse to locate and select a file.
Test file used
The Test file used box allows you to select the file that was used as a test tone. You can enter the path directly
into the box or click
Browse to locate and select a file.
Note:
You should use one of the test files included in the
Acoustic Mirror Impulse Files\Test Tones folder on the Sound
Forge CD-ROM.
Impulse output
The Impulse output box allows you to specify where the recovered impulse response file is saved. You can
enter the path directly into the box or click
Browse to locate and select a folder.
Remove very low frequencies
When you select this check box, Acoustic Mirror removes very low frequencies (which are typically
comprised of noise) from the impulse response. This increases the impulse response’s signal-to-noise ratio.
Recover Impulse
Clicking the Recover Impulse button starts the impulse recovery process. After the process is complete,
Acoustic Mirror creates an impulse file and saves it in the folder specified in the
Impulse output file box.
Impulse recovery mode
You can choose from three Impulse recovery mode options to determine the method Acoustic Mirror uses to
recover the impulse:
Use the start and end of the recorded file as timing spikes, Auto-detect timing spikes, or Do not
use timing spikes
. Each of these modes is described below.
Use the start and end of the recorded file as timing spikes
This option specifies that the beginning and end of the recorded file are used as timing spikes. This option is
recommended for the best results during impulse recovery.
You must trim the file as close to the timing spikes as possible for this method of recovery to work most
effectively. The first sample of the file should contain the start of the first spike and the last sample of the file
should contain the start of the second spike. Therefore, most of the second spike is deleted.