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Troubleshooting Acoustic Mirror

The following sections describe problems that may be encountered when working with Acoustic Mirror.

Stuttering during real-time previewing

It is not uncommon to experience problems when previewing Acoustic Mirror’s processing in real-time. The following sections contain several suggestions to remedy the situation.

Lower the Quality/speed setting

Lower the value of the Quality/speed control on the General page. When previewing lengthy impulse responses, a setting of 1 or 2 may be necessary; however, the quality suffers. This setting should always be returned to 5 prior to processing to maintain effect quality.

Increase the DirectX buffering size

1.Open the Acoustic Mirror dialog.

2.Right-click an empty area of the dialog outside of the four tabs and choose Configuration from the shortcut menu. The Real-Time Preview Configuration dialog appears.

3.Reconfigure the Buffers to process per second and Total playback buffers controls. Typically, lowering the Buffers to process per second value and increasing the Total playback buffers value reduces gapping during real-time previewing.

Close all memory-intensive applications

Real-time previewing may be limited by any additional applications operating on the desktop. To avoid this situation, close all memory-intensive applications prior to using Acoustic Mirror.

Add additional RAM to the system

We recommend at least 32 MB of RAM to operate Sound Forge and its related tools.

Add a faster floating point arithmetic processor

Many high-speed processors are still lacking in speed when processing floating point arithmetic. We recommend using high-speed processors that provide exceptional floating point arithmetic for reliable real- time previewing.

Impulses do not recover properly

If you experience problems recovering custom impulse recordings, verify each of the following:

•Verify that you have trimmed the recorded test tone based on the mode chosen from the Impulse recovery mode drop-down list. For more information, see Trimming the test tone on page 191.

•Verify that the second spike is present in the recorded test tone if the Auto-detect timing spikes options is specified.

•Verify that the file specified in the Test file used box is the exact test tone used to make to field recording and that neither its length or data has been changed.

•If the impulse still does not recover properly in Auto-detect timing spikes mode, use Sound Forge to normalize the spikes in the recorded test tone file. This should aid the auto-detect algorithm in detecting the timing spikes and recovering the impulse.

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USING ACOUSTIC MIRROR AND WAVE HAMMER