Tutorial on how to use Audio Comparer™

In today's digital age, our devices are flooded with audio files, ranging from music tracks to podcasts, voice memos, and more. Over time, it's easy for duplicates to accumulate, taking up valuable drive space. Not only does this clutter your storage, but it can also make it harder to find the files you really want. In this tutorial, we'll guide you through the process of identifying and deleting duplicate audio files, helping you reclaim precious storage space and organize your audio library more efficiently.

The Audio Comparer's primary goal is to find duplicate audio files and sort them in any way suitable for you. The program is capable of properly organizing even the most extensive music collection. As the name suggests, the program's mechanism is based on the comparison process of audio files, which means Audio Comparer can easily find both exact duplicates, and similar files, "similarity threshold" being specified. The major difference between the program and other audio duplicate finders is in the comparison mechanism: Audio Comparer carefully "listens" to your audio files and compares them by their actual audio content, just like human ears do. The search is performed precisely by sounding - the actual content of the file, not its external properties like tags or size. That is why the program finds not only duplicates but similar files as well. Unlike other utility programs of that kind, Audio Comparer works equally well with files of different formats, one by one comparing MP3, MP2, MP1, WMA, AIF, WAV, OGG, WavPack, FLAC, APE, AAC files.

Working with the Program

Now let's consider in detail the process of installing and working with it. Start the program. By default, every time the application is started, the Comparison Wizard appears. It will tell you about the program, and in a matter of seconds, help you find audio duplicates and similar audio files.

Audio Comparer - Comparison Wizard screenshot

Later on, when you get the feel of the program, the tick "Always start with Comparison Wizard" can be removed, and Comparison Wizard will no longer distract your attention.

Then press "Next". The program enables you to compare "Within one audio group" or "Between two audio groups". Each "group" is a set of audio files that can be located in different places. When you deal with the search within one group, the program will search for similar audio files among all the records in the audio group. If the search is performed between two groups, the program compares every audio file with every audio file in the second group:

Audio Comparer tutorial

After choosing the comparison option, click 'Next'. Suppose you need to find duplicates within one group. At first, the program offers you to set the name of the Audio group to be formed and add folders with audio files to it:

Audio Comparer guide

It is especially convenient that a group may include all audio files, even if they are located on different logical drives. For example:

Audio Comparer How to use

After musical files are added to the group, you need to specify which files you're trying to find: "Exact duplicates" or "Similar audio files". Depending on the results needed, select one of the options and press "Next":

Audio Comparer Guide on How to use

At the next stage, you have to specify the location path where you want to save the results and press "Process".

Audio Comparer How to delete duplicate audio files

Apart from the Comparison Wizard, in the program, there's an opportunity provided to form an Audio group independently. To achieve that, select the item "New" in the menu Audio group. Then specify the folder with audio files you wish to add to the group and enter the name of the Audio group.

After that, the program starts "listening" to audio files, and the following window is displayed:

Audio Comparer Main Window

Audio Comparer will listen to the music collection and catalog the sound characteristics of each musical composition within an "Audio group". "Listening" does not take much time: the program is capable of analyzing audio files at one file per second -- a HUGE time saver in helping you maintain your audio file collection!

After the listening process has been finished and the audio group formed, the comparing process begins. Comparing can be performed within one group or between the groups. Comparing requires much less time than listening, which is why the result of the comparison appears on the screen within several seconds. The Audio Comparer displays the results in the form of a tree chart. Each nested branch includes similar files found with the same similarity degree as the parent branch file. The program provides the opportunity to mark the files, and after that, you may move, copy or delete them. It is very convenient that each action may be performed using a specific functional key [F5], [F6], [F7], [F8]:

Audio Comparer Main Window

The program has a simple embedded player (there are volume control and Play/Pause buttons), and, apart from the title and location, for each audio file there is specified such data as duration, bit rate, artist, album, genre, year and even comments to the file. So, the information about each file is displayed clearly and conveniently; besides, at any moment you may listen to any composition if its title conveys nothing to you (it's rather convenient for extensive collections).

Now that we've got the results displayed in the form of a tree, the only thing left is to click on unnecessary files and take different actions with them. Well, if you need to delete audio files marked in the results, press F8 or the "delete" button. There appears to be a confirmation window:

Audio Comparer Confirmation Window

It provides a list of files to be deleted. Again, you've got a chance to play the melody once more if you're not sure of this or that file. There is also information about the total number of files to be deleted and how much disk space will be released. You may take some files out of the list and confirm the list of files to be eliminated.

Coming back to the tree chart. You can see the "Actions" button, which implies the following options:

Audio Comparer popup menu
  • Expand all - automatically "expands" all the branches of the tree chart;
  • Collapse all - the program simultaneously "hides" all the nested branches of the tree and displays only parent branches;
  • Set marks automatically... - automatic marking of files by criteria specified (see below);
  • Remove all marks - the program removes all the user's marks with one click.

When you select the option "Set marks automatically", the "Automarking" window is displayed, and the program offers to choose between the following options:

Audio Comparer Automarking

Considering the criteria set, the program invites you to automatically mark either the file with the best or worst quality in the group or each file in the group, except one of the best or worst quality. At that point, the user's marks are automatically deleted.

Now let's take a brief look at the menu and its peculiarities.

Having formed an audio group once, using the menu, you will be able to add new files and folders to it and delete unnecessary or excessive audio files. To achieve this, there are shortcut buttons on the panel: "Add files" (a white-colored "plus" on the background of the green circle), "Add folder" (a "folder" sign with a green "plus"), "Remove files" (a white "minus" on the background of the red circle), as well as buttons for quick creation of an audio group and opening of the existing audio group.

So, you've enlarged your collection, and now you'd like to include new audio files in the audio group. Select "Add", choose the folder with new audio files, and the program starts listening to the files. Once the listening process has been completed and new files have been added to the audio group, we proceed to the comparison process. In the "Compare" menu, choose either "Within the group" or "With another group" and start comparing. In the right part of the screen, you'll see the results: similar files in the form of a tree, but considering newly added audio files, as well as similarity degree in percentage. Now you are welcome to perform different actions with these files.

Using the "Audio group" menu, you can also compress your collection and sort it by title, date or file size:

Audio Comparer Automarking

On the quick-start panel, you can also find 'quick' buttons for comparing within the opened group and comparing with another group, the button for opening the saved results, the "magic wand" sign to run the Comparison Wizard, the gear sign to activate 'preferences' dialog box, and the standard help button.

In the Compare menu, apart from the options already described, you may also take different actions with comparison results: refresh, save to the specified location, and open the saved results.

Let's come over to "Preferences" in the Tools menu. In the "General" tab, you may set the order of using the comparison wizard, enable or disable multicore CPU optimization, and set a very convenient option of highlighting missing files. Well, if you have already taken any actions with an audio group and deleted or moved some files to another folder, they will be marked red. If you choose the "Refresh" option in the menu Audio group, then all missing files marked red will be removed from the group. So, all the actions taken by the audio group will be seen.

Audio Comparer Preferences

Here you can also set the necessary "similarity threshold". So, if you need to find exact duplicates in your collection, move the slider to the extreme right position and, by doing so, set the "similarity threshold" at the level of 100%. If you want to find similar files, then you need to move the slider and set the similarity degree required. By default, the similarity threshold is set at 70%. This is the criteria the program will be guided by in searching for similar audio files.

In the "Languages" tab, you can choose from numerous available interface languages, including Italian, Macedonian, Romanian, Spanish, Turkish, Vietnamese and others.


As your extensive music collection continues to grow, Audio Comparer will serve as an increasingly valuable tool. The program is easy to use and has a nice, user-friendly interface. At the same time, it processes the enormous amount of musical files, spending minimum time on this and releasing much spare room on your hard drive. The program's 'intellect' allows it to listen to a composition just once and remember it forever, which is very convenient for large musical collections. The utility will be especially useful for those whose musical collection includes hundreds and even thousands of compositions, as well as MP3, WMA or OGG files with tags unfilled.

Audio Comparer will help to find duplicates and, based on their quality, recommend which files to save and which to delete. The program runs on any PC with an OS from Windows 98 to 11. RAM capacity is not crucial, but the program "prefers" fast processors.