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4. Advanced topics

4.1 The Mini Player

The Mini Player shows up when you right-click on an input or output file and choose the Play context menu. It is also possible to play a file by double-clicking on it, or by selecting it and clicking the button. Playback of the file starts immediately.

The Mini Player

The Mini Player is not intended to be a full-featured audio player. In particular:

If you want to play a file with another player, you can use the Show in Windows Explorer context menu. This will open the file in the Windows Explorer and highlight it, so you can then open it with your favorite audio player.

This menu is always available on input files. It is only available on output files once they are fully transformed.

The Mini Player on the other hand can play an output file as soon as its transformation has started, even if it has not finished yet. It will play as much audio as has been already transformed.

In the Mini Player:

The following shortcut keys are available in the Mini Player:

Note that the Mini Player window must be selected for these shortcuts to work. The Ctrl-p shortcut can be used at any time within the Quantum application to select the Mini Player window.

4.2 The file information dialog

The file information dialog displays various properties of an input or output (transformed) file. To show it, right-click on an input or output file, and choose the Show info... context menu. You can also select an output file and click on the button.

The following figure shows the file information dialog for an output file:

The File Information Dialog for an output file
The dialog has three tabs for an output file (for an input file only the first tab is visible):

Note that the file information dialog only shows information that are relevant for the process of time stretching. This is not a dialog that shows the meta-data (song title, composer, etc.) of the file.

Input File

The following information are shown on the Input File tab:

Output File

The following information are shown on the Output File tab:

Transformation

The following information are shown on the Transformation tab:

4.3 Global Settings

4.3.1 Transform settings

The global transform settings can be changed by choosing the File, Settings... menu, and selecting the "Transform" tab (the first one).

Global Settings: Transformation settings (middle)

There, you can change the default values for the Transform Settings and the Output Settings. These values will be applied to new files.

Only the dialog (1) in the middle of the above figure shows up initially.

Clicking on the button under Default Tranform Settings opens the panel shown on the left (2) to change the default values for the advanced transform settings (discussed in section 3.2.2).

Clicking on the button under Default Output Settings opens the panel shown on the right (3) to change the default values for the output settings (discussed in section 3.2.3).

The values changed here are not applied on the files that are already opened. However, they will be used as the default settings for all files that are subsequently opened (if no input file is selected. Else the settings of the selected input file are reused for subsequent files).

Under Time Stretching Factor (in the main dialog (1)), the Default option allows you to select which time stretching option (length change, speed change, tempo from/to...) is visible by default when adding new files.

Note: the above buttons apply to the settings of all the three tabs.

4.3.2 Processing settings

The global processing settings can be changed by choosing the File, Settings... menu, and selecting the "Processing" tab.

Global Settings: Processing settings

The settings on this tab have no effect on audio aspects (quality, timbre, etc.) of the transformed files. There are more "system" settings.

The processing settings are the following:

Note: the above buttons apply to the settings of all the three tabs.

4.3.3 Appearance settings

The global appearance settings can be changed by choosing the File, Settings... menu, and selecting the "Appearance" tab.

Global Settings: changing the application's appearance

Here you can change the appearance (or skin, theme) of the application. Choose the theme from the "Appearance" drop-down. A preview is displayed on the right.

There are light and dark themes, flat and 3D themes, a high-contrast theme and a native theme.

Notes:

Note: the above buttons apply to the settings of all the three tabs.

4.4 Command Line Version

Warning: this feature is NOT available on the Microsoft Store version of Quantum. It is only available on the KVR Marketplace version of Quantum.

Warning: this section is for advanced users only. If you don't know about the command line and shell scripts, you probably do not need this feature.

I'm an advanced user

A command-line version of Quantum is available, and is automatically installed together with the application. It can be included in shell scripts, and can run on headless servers or through ssh. It can do most of the things that the normal (graphical) application does. The command-line version is named qats.exe and is located in the application's directory. It should not be moved from this location.

To see how to use the command-line version, and all the available options, use qats -h.

Notes:



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