Instructor

Instructor is a special utility plug-in that allows you to instruct the next plug-in in the batch with information about the audio it needs to process. This is useful for situations where you want to use monopass plug-ins that require an analysis stage that is not available at this point.

In effect, the Instructor plug-in turns a monopass plug-in into a dual pass one. Some monopass plug-ins, such as DeNoiser or DeBuzzer, need to learn about the audio they are to process before they can begin processing correctly. The Instructor plug-in can help in this situation, because it can teach the next plug-in in the audio chain about the audio it is about to process.

The Instructor plug-in must be used as a pair:

The first instance replicates the start of the audio stream. This means the next plug-in in the chain receives the start of the audio stream twice.
The second instance of the plug-in comes after the plug-in being instructed. It cuts out the extra audio injected by the first instance of the Instructor plug-in.

For example, this means that the DeNoiser plug-in has time to sufficiently analyze the audio stream before the second stream start is injected. The “badly” processed first part of the stream is skipped by the second instance of the Instructor plug-in.

You can set the Instructor plug-in to replicate up to 20 seconds of audio.

Note

Do not set a value that is longer than the shortest file in the batch, otherwise a short file is over truncated by the second instance of the plug-in.

This monopass plug-in is exclusive to the Batch Processor window.

Replicate Stream Start: Injects the start of the audio stream twice into the next plug-ins. This action must be selected for the first instance of the Instructor plug-in.
Reverse Stream: If this option is activated, the start of the stream is injected first in reverse sample order, then in normal sample order. This changes nothing from the spectrum analysis point of view, but it improves the transition between the repeated streams.
Trim Stream Start: Skips the start of the audio stream. This action must be selected for the second instance of the Instructor plug-in.
Duration: Specifies how much audio to replicate or skip.