Audio Switch User Guide


he following written guide explains the functioning of Audio Switch. In addition to this User Guide, we suggest you view the training videos for the product. These can be accessed through the Help button of the software or from the navigation menu of the website.

Activation - Before reviewing the features and functionalities of Audio Switch, let’s quickly review the licensing procedure for the software. We do not use visible license key. On first run, AS will prompt you to enter your first name, last name, and email address as part of the registration and activation process. Once you have entered the correct information AS will run in the fully licensed mode.


AS requires and internet connection to activate the software, even if only temporarily. It cannot be licensed on a computer that is offline.

Below is a snapshot of the Audio Switch user interface. We will describe and explain each of these items.

Image 1 The Add File(s) and Add Folder Buttons are the means by which you get files into Audio Switch that you want to convert. In both cases, when you click these buttons a dialog window will open on your computer. From this dialog window you can select files or folders in the current directory, or you can use this dialog window to browse your computer’s file structure to navigate to other locations where you have files or folders that you want to add to the program.

When you start adding files or folders you can use your shift or your control key, as you would with any other operation to and a group of continuous or discontinuous files.

Also note that since video contain an audio component, you and select and add video files, audio files, or a combination of both. You can also add an unlimited number of files at once time to convert.

The file formats that Audio Switch will open are found below. These are the most common audio and video file formats. There are many other, more obscure formats that exist, but Audio Switch works only with these common file formats.

Image 1 After you have selected a group of files to open and add to Audio Switch and then execute the command will place these files in the open window on the screen. Audio files will appear immediately. The audio from video files, if you have added any, is stripped from the video, before being added to the main user interface. As this happens you will see a dialog window showing you the progress.


When Audio Switch is done adding files it will display a small dialog window showing you how many files it has added and how many files it has skipped. It also creates a log of this action which you can access through the Options button.

Once files have been added to the User Interface, you will be able to see a list of those files and their audio characteristics as shown below. Many of these audio attributes listed are unique to Audio Switch and they are not commonly found in other similar programs

Image 1 Once files have been added to Audio Switch you can remove files by using the two Remove buttons. The first button removes only the selected files. The second button, as its name indicates will remove ALL files currently opened in the program.
Image 1 Any file that is currently opened within Audio Switch can be played by first selecting the file by left clicking on it with your mouse. These will cause the selected file to be highlighted. Once selected, clicking the play button will cause the selected file to play through your selected system speakers on your computer.
Image 1 One of the unique features found in Audio Switch is the ability to calculate volume or loudness data for any of the audio or video file types it supports. This information can be very useful for purposes of normalizing data across a group of files. This normalization process adjusts the selected files so they all of the same relative loudness.

Image 1 Loudness is calculated when the checkbox at the bottom, right side of the UI (shown to the right) is checked or selected. This process of calculating data can take a few seconds per file. If you have a large number of files, the process in total can take a very long time. If you start the process of calculating loudness and decide that it is taking too long and want to cancel it, you will find a Cancel button at the very bottom right hand side of the UI.

Image 1 In addition to calculating volume, AS also displays whether a particular file is clipping. The determination of clipping is a simple calculation that looks for any ONE point above the boundary limits of the audio wav data. The take way is that, while the determination of Clipping is technically accurate, it does not necessarily mean that you can hear this clipping. However, if you have a file that shows it is clipping, it would not be prudent to further increase the volume of such a file, as this could very well cause the clipping to become audible.

Track Gain is the change in volume that would be applied assuming that Volume Normalization were to be applied. It is based upon a default value of 89 Db. This default value can be adjusted when you open the Normalization button. Also note the “Clip Track” value of Y or N tells you whether the track or file will clip AFTER volume normalization is applied.

Image 1 The Normalization dialog is show to the left and appears after clicking the Normalization button at the top of the UI. Here you can see the Target (and default) normalization value. You can change this value and as you do, you will see that the Track Gain and Clip Track values change. For example, you might want to change this value several times until you find a value that does not cause files to clip.

Once you have found a value that you determine to be acceptable, check the box to tell AS to apply the normalization to the current group of files when the conversion process is run.

The exact change applied to each file is the + or – value found in the Track Gain column. Click the Ok button to close the window.

IF you select Cancel or you click the X to close this window, the checkbox “Apply Volume Normalization…” will be deselected.

Image 1 The Convert button appears twice on the UI, once at the top and a second time on the lower right hand side, next to several of the conversion options. When this button is clicked, Audio Switch will start the process of converting the files you have selected which appear in the main UI to the desired Output format you have selected. If you have only a few files this conversion process will not take long. However, if you have hundreds or thousands of files this process can be very lengthy. Once you start the process, a CANCEL button will appear immediately below the Convert button at the lower right of the UI. This button allows you to cancel and stop the process, if you so desire.

As the conversion proceeds you will see at the bottom left, a progress indicator that tells you how many files have been converted and how many remain.

The Convert button causes two operations to be executed. Firstly in converts the files to the desired new format. Secondly, this operation also applies volume normalization, if this has been selected.

Before clicking the convert button to start the conversion process, you will need to select and output format (including a bitrate in some cases) and a Save To folder or directory. Audio Switch can convert to any of the following file formats: Wav, mp3, mp4, m4A, AAC, and wma. Once you have selected a file output format, you may be prompted to select a quality setting or bitrate depending upon the file format you have selected.

Image 1 After selecting the output format, you should select and output or save to location. This location is by default designated from a path that you can changes and set in the Options button. You can also over-ride this setting by selecting the Browse button

You also have two other options that can be selected, at the bottom right of the UI. The first of these is the “Output to same folder as source”. If this checkbox is selected it overrides the output location and places the newly converted files in the same location as their source files. If there is any duplication of files (exact same name and format) it will change the converted file name so it does not overwrite any existing files.

The other checkbox shown here is to: “Skip Problem Files and create a log”. If this box is checked it will do what it suggests, continuing to convert all convertible files until it is done, by skipping problem files. If you do NOT check this box and the program has a problem with a file, it will throw up a popup and ask you what to do.

If you walk away leaving the program unattended while it converts, any problem files will cause the program to stop and wait for your input. Accordingly, if you are converting a large group of files we suggest you check this box so the program can operate without the necessity of your input.

The Options Button contains several customization options. The first of these are a series of default paths or directories. These paths are set during install but you can change them at any time, by clicking the button on the right and then browsing to the new path or folder you’d like to use for each.

At the bottom of this window are two additional options. One is the auto play feature. When checked and auto play is enabled, when you are using the Open button and click on a file, it will begin playing the file for your to hear. The Log File button, when clicked, opens the log file created by the program of all of its operations, including problem files it has encountered and has skipped during the conversion process.

Image 1 The More button contains a link to the Audio Switch order page. It is an easy way to purchase the product for users that may be running the demo version of the software. In addition to Audio Switch link there are links to other related audio and/or video products that might be of interest to users.
Image 1 The Help button contains a number of items that you may use from time to time. The first link is to THIS User Guide. The next item is a link to the training videos for the product located on the web site. Following this is a link to the Help Desk; any questions or technical issues should be sent thru the ticket system on this Help Desk.

Image 1 The Help button also contains a link to deactivate your computer. This would be used in situation where you are eliminating a machine that Audio Switch is installed on. When you select this option, the license for that machine will be removed AND it will forward you to a page on the Audio Switch website, where you can log into your account and remove this machine from your account, thereby freeing up one of the three license slots available to you as a purchaser.

The About button contains some basic information about the software and license, including the version number of the software installed on your computer.