Best Practices for WAV Compression

WAV compression is a delicate balance between file size reduction and audio quality preservation. This guide covers essential practices to achieve optimal results when compressing WAV files.

1. Choose the Right Sample Rate

The sample rate directly affects audio quality and file size. Here are general guidelines:

• 48 kHz: Professional audio, film production
• 44.1 kHz: Standard for music CD quality
• 32 kHz: Suitable for voice recordings
• 22.05 kHz: Low-quality audio, small file size

2. Understanding Bit Depth

Bit depth determines the dynamic range of your audio. 16-bit is the standard for most applications, providing 96dB of dynamic range. 24-bit is used in professional settings but results in larger files.

3. Volume Optimization

Before compression, normalize your audio to peak at -1dB to prevent clipping while maximizing signal-to-noise ratio. This ensures optimal quality after compression.

4. Compression Tips

• Always keep a backup of the original file
• Test different settings with a small section first
• Consider the intended use of the audio
• Monitor the output for artifacts or quality loss

5. Common Mistakes to Avoid

Avoid these common pitfalls when compressing WAV files:

• Over-compression leading to quality loss
• Using inappropriate sample rates for the content
• Multiple compression cycles
• Ignoring the target platform requirements