How to Compress MP3/ WAV/AIFF/FLAC to Small Size

By Emily Watson, Monday, Oct. 19, 2015

Compressing audio files is needed almost for every one from time to time. Whether you want to compress MP3/WAV/FLAC/AIFF to save space on your portable music player or make it easier to stream the file online, audio compression makes sense.

There are several ways can compress your MP3/WAV/FLAC files to smaller size: change audio file format, change bitrate of audio file, change sampling rate and bit depth of audio file or trim the audio file. To do this, you'll need audio compressor.

While working excellent as a video conversion program, FonePaw Video Converter Ultimate is also an audio compressor and audio converter. This software can fast compress audio in whatever audio formats to smaller file size while keeping audio quality as high as possible. It compresses MP3, WAV, AIFF, FLAC, M4A, OGG, AAC and more to smaller size on Windows 10/8.1/8/7 or Mac. It can also convert audio to any other audio formats like converting WAV to MP3 and converting FLAC to MP3.

Download the audio compressor on your computer now. After launching it, follow the three steps to compress MP3, FLAC, WAV, etc.

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How to Compress Audio on Mac Yosemite / Windows 10

1. Load audio files

After open the program on your compute, click "Add File" button to add the audio files you want to compress , whatever its in MP3, WAV, FLAC, OGG, WMA, M4A, AAC and other audio format.

Load Audio Files to Program

2. Compress audio
Method 1: Switch formats!

The simplest and most effective way to reduce the size of the audio file is to use lossy compression algorithm. You can compress Lossless audio formats such as WAV, AIFF or FLAC to lossy formats such as MP3 or OGG.

Click the drop-down button of "Profile". Then, select "MP3 - MPEG Layer-3 Audio (*.mp3)" as output audio format from "General Audio" category.

Select Formats on Profile

Note: This method does not apply to compress MP3 audio file. If you want to compress MP3 to smaller file size, you may refer to Method 2.


Method 2: Change audio settings…

If you already have a music file in a lossy audio format and want to make it even smaller, you can just reduce the bitrate of the audio file.

Click "Settings" button and go to the "Audio Settings" section. Then, Change Audio "Sample Rate" and "Audio Bitrate" to a suitable file size. Choose any size as you want. For example, you can change the bitrate from 192 kbps to 128 kbps.

Change Audio Bitrate on Program

Note: Though this method suits to compress all audio files, the sound quality will be reduced proportionately.


Method 3: Trim it a bit!

Instead of compressing the whole file and risking losing its quality, you can trim the audio to make it smaller.

Click "Clip" on the top toolbar. Then, drag the left and right triangles under the progress bar where you want to trim, and then the time will be shown in the Start Time box and End Time box for your reference. Click "OK" to save the settings if you have completed audio cutting.

Clip Audio Files

3. Finish the compression

Click the big "Convert" button of the program to start and finish compressing MP3, WAV, etc.

Now, here are all the easy solutions for those who want to reduce audio file size. FonePaw Video Converter Ultimate can do each one for your. Choose a method that best suits you and tell us about it in the comment sections.

By the way, if you want to compress videos, FonePaw Video Converter Ultimate can do as good as audio compression.

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