Impulse recovery mode

188

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 threeoptions to determine the

recover the impulse: Use the start and end of the recorded file as timing spikes, use timing spikes. Each of these modes is described below.

Use the start and end of the recorded file as timing spikes

method Acoustic Mirror uses to Auto-detect timing spikes, or Do not

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.

USING ACOUSTIC MIRROR AND WAVE HAMMER

CHP. 12