While it's difficult to find an app that can do everything you need to create and edit music, Audio Editor is a versatile tool for the home user. It supports a variety of MP3 files as source tracks. This program supports a large number of file formats and supports editing both MP3 and WAV files. It can even merge multiple tracks into one. To use the program, simply drag and drop the files you wish to mix on its dedicated panel. Later, you can add more files and rearrange the items in the list. When you're satisfied with the results, click the Save button to save the output as a WAV.

Once you've chosen your sound files, you'll need to select areas on the waveform. To select an area, you need to click on it, then drag it around with a mouse. Different waveform regions are represented by different colors. In the first channel, the upper half is for editing the left channel, the lower half is for editing the right channel, and the middle section is for editing both channels at once. You'll be able to use this tool to make adjustments to the volume of each audio channel.

The best audio editing tools have high-quality features, but they often come with a hefty price tag. However, you can get a free trial version of many premium tools, such as Audition, which is industry standard. You can also use subscription-based models for flexibility. Keep in mind your end goal before choosing an audio editor and consider how much you'll be using it. It is crucial that you choose an app based on what you need.