Mastering
Apply simple high-pass/comp/loudness/limiter chain.
Guide
- Presets differ in loudness/limiter settings.
- Large files may fail due to browser memory limits.
- Speed depends on device and file length.
Mastering Guide
Mastering is the final polish applied to mixed audio. This tool runs a chain of high-pass filter, compressor, loudness normalizer, and limiter to produce levels suitable for streaming or podcast platforms. It runs in the browser using ffmpeg.wasm, so no software installation is required, and multiple files can be processed in parallel.
Choosing a Preset
Streaming targets -14 LUFS, Loud -9 LUFS and Podcast -16 LUFS. Platform normalization policies vary; these presets do not guarantee every platform requirement or a measured output loudness. Listen to and check the output.
Output Format
WAV (pcm_s16le) is lossless and ideal for archiving or further editing. M4A (AAC) is smaller and convenient for streaming uploads. Use M4A for platform uploads and WAV when you need a master archive.
Processing Notes
Large files and batches can exceed browser memory limits. Speed depends on the device and file length. Cancel stops queued jobs; an already running file may finish and download. Leaving the page terminates its engines.
Tips
Ensure your mix is finished before mastering. Heavy clipping or noise is hard to fix with mastering alone. Try different presets to find the right fit, and consider exporting both streaming and loud versions. For complex projects, consider working with a professional mastering engineer.
How to use this tool and common questions
Process audio with high-pass filtering, compression, loudness adjustment and limiting. Choose ToneNook mastering presets and export WAV or M4A files.
- What does this mastering tool do?
- It processes audio through high-pass filtering, compression, loudness adjustment and limiting. Choose a preset and save the processed result as WAV or M4A.
- Can I submit the output for music distribution?
- Compare the result with the original and listen for distortion or excessive loudness changes. Check your distributor’s file requirements separately; a preset does not guarantee every delivery requirement.