Why Low-Quality Audio Exports as WAV and Why It May Be Larger

Sound quality and file compression are separate ideas. An audio file can use a low sample rate, 8-bit depth, mono channels, distortion, and filtering while still being stored as uncompressed PCM WAV.

Why LowQualityMaker uses WAV

PCM WAV is a dependable browser-safe output path and does not require a compressed audio encoder. The tool writes the processed samples into a standard WAV container and reports the actual sample rate, channel count, and bit depth.

Why a worse sound can be larger

MP3, AAC, and Opus remove information using compressed codecs. A source encoded with one of those formats may be compact even at a higher perceived quality. PCM stores sample values directly, so duration, sample rate, bit depth, and channel count largely determine size.

For example, changing a compressed source into 8-bit mono WAV can make the sound rougher while removing the source codec's compression advantage.

For uncompressed PCM, a useful approximation is:

bytes ≈ duration × sample rate × channels × bytes per sample

A 60-second, 11,025 Hz, mono, 8-bit file therefore needs roughly 661,500 bytes of sample data, plus a small WAV header. A 60-second, 44,100 Hz, stereo, 16-bit file needs roughly 10.6 MB of sample data. Neither estimate says how pleasant the audio sounds; it describes how many PCM samples are stored.

By comparison, MP3, AAC, or Opus size is driven more directly by encoded bitrate and duration. A compact compressed source can therefore remain smaller than a deliberately degraded WAV.

What the tool is designed to do

The Low Quality Audio Maker is an effect and PCM-property tool, not a compressed-audio size optimizer. Use it when you want a cursed mic, 8-bit, filtered, mono, or distorted result.

Check the downloaded file rather than assuming that worse sound means fewer bytes. Preserve the original for any later compressed export in a dedicated audio encoder.

Choose the next step based on the goal

• For a cursed-mic or 8-bit effect, use the WAV as the finished effect master.
• For a strict upload limit, compress that WAV later with a dedicated encoder that supports the destination format.
• For further editing, retain both the original source and the processed WAV so another lossy generation is not your only working copy.
• For verification, inspect the completed sample rate, channel count, and bit depth instead of trusting the requested settings alone.

LowQualityMaker intentionally does not pretend to produce MP3, AAC, or Opus. The .wav extension, audio/wav type, and reported PCM properties make the output boundary explicit.

Read How to Make Audio Sound Low Quality Online for the complete workflow.

Sources and further reading

• WAVE format description from the Library of Congress — WAV structure, PCM use, and preservation characteristics.
• Web Audio API specification — browser audio buffers, sample rates, and offline processing.