Bulk Audio Normalizer
Level whole audio batches with peak normalization to a target dBFS level (default -3) without crushing dynamics. Networks even out 30 episodes so listeners stop riding volume — local Web Audio work, 2 free batches a day.
Runs on Web Audio
How to Use the Bulk Audio Normalizer
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Frequently Asked Questions
What target level should my batch use?
-3 dBFS peak by default (-1 for maximum loudness, -6 conservative; adjustable -12 to 0 in 0.5 steps): every file scales so its loudest peak lands on target, gain capped at 10x, and each saves as -normalized.wav.
Normalization vs compression — what's different?
Normalization shifts overall gain to hit the loudness target, preserving your quiet-to-loud dynamics. Compression squeezes dynamics first. Normalize finished, mixed audio — never use it to fix a bad mix.
Will peak matching clip my audio?
No — the target caps at 0 dBFS and gain never exceeds 10x, so peaks scale down to the target instead of overshooting. A hot master simply gets turned down; check the loudest episode once, then trust the batch.
Are my audio files uploaded?
No — normalization runs locally in your browser with the Web Audio API; audio never leaves your device. Only the final ZIP counts as one Pro download — 30 leveled episodes in a single save.
Related Audio Tools
Audio Compressor
Even out loud and quiet parts of any audio with dynamics compression — podcasts at one steady volume. Stop riding the volume knob — local processing, unlimited saves.
Bulk Audio Converter
Convert whole batches of audio between WAV, MP3, and OGG with one output format and sample rate for the whole batch. Podcasters standardize 50 episodes for every platform — local processing, 2 free batches a day.
Last updated October 2026