How to compress WAV audio files without losing quality?

Why WAV audio files are so large?

Before we dive deep into the compression methods of WAV audio files, we need to understand they are so huge in the first place.

WAV audio files are actually raw audio files, which are not compressed in any way. Therefore, in most cases they are significantly larger than we are used to see in other formats such as MP3. The reason for the difference is because many other audio formats apply compression, which significantly reduces the file size.

Compressing a file doesn’t always mean you will lose from the file quality. Sometimes, the audio file actually holds “data” (or maybe we can say, sounds), which isn’t important at all, because the human ear can’t hear it anyway. Therefore, reducing that extra sound can mean reducing the file size significantly.

What is the main usage for WAV files?

WAV files are very common in two scenarios:

  • When ripping files that are burned on a CD-R / DVD-R. In most cases, the output format will be WAV.
  • Producers and music creators use the WAV formats to make sure they hold the raw data of the audio. This allows the flexibility of compressing and changing the audio as they desire, without destroying the original file (the WAV file) which can be backed up for future use.

How to compress WAV files without losing quality?

There are two equally good options to compress a WAV file without losing quality in a noticeable way to humans:

  • The first option is to convert the audio file to to a format that allows compression, such as MP3. Using 128kbps with the MP3 format will result in mostly the same quality as in the WAV file, at least as far as a human ear is concerned. The file size though, will decrease drastically (in most cases, 300% to 1000%).
  • The second option is to keep the file with the WAV format, but to lower its bitrate. In most audio files, you won’t notice the difference between 128kbps and higher bitrates. Therefore, we recommend that you’ll make an attempt to lower the bitrate to 128kbps and see if the quality was damaged or not (in our tests, in 99.5% of the files, we couldn’t even tell the difference, even when using very good speakers to play the audio files).

So what’s the best way to convert the file to MP3 or lower the bitrate of the WAV file? We humbly recommend VIP Video Converter.

To prove that the compression is useful, we grabbed the file a2002011001-e02.wav from the following audio tests website and tried to compress it to MP3 using VIP Video Converter. The results were amazing. The original file size was 9.13MB, while the compress file size was 1.73MB, which is more than 5 times smaller. But what about the quality? Well, we didn’t hear any difference. Can you?

To compress your own audio files, follow these steps:

  1. Download and install VIP Video Converter.
  2. Choose MP3 / WAV at the formats menu at the top.
  3. Click Add Files and choose the WAV audio file you would like to compress.
  4. Click Start Converting, and the compression will begin. The compression duration can vary depending on the audio file size.
  5. Once the conversion is done, the compressed audio file will be available in the output directory.
  6. You can now compare the audio file sizes and calculate the compression ratio and how much space you saved.

 


If you’re looking for a video converter that will allow you to convert more than 200 video and audio formats, easily and quickly, please consider our award winning premium video converter, VIP Video Converter. You can try it out for free. We hope you’ll like it the same way we do 🙂

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