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MixSift guide

Understand the Export Mix clipping warning

Choose between the displayed whole-mix reduction and cancellation, and understand why listening volume does not protect an export.

What triggers the decision

Export Mix renders the confirmed Level, Mute and Solo balance and checks the rendered samples. If its measured absolute sample peak exceeds full scale, the app presents Clipping Protection Needed before completing the export. Even when no channel is boosted above its default, adding several contributions can produce a combined peak that needs reduction.

The warning concerns the rendered mix, not how loud you set your speakers. Its displayed Sample Peak and Reduction belong to that export. Use the values shown for your export rather than assuming a fixed reduction.

Choose how to continue

  1. Read the displayed Sample Peak, Reduction and Target. The action labeled Reduce by the displayed dB amount and Export applies a uniform reduction to the entire mix.

  2. Accept that action if you want to retain the current relative stem balance and save the lower overall mix. The same attenuation factor applies to every audible contribution.

  3. Choose Cancel if you want to reconsider the balance. Return to the mixer, lower contributing stem Levels as needed and begin a new export confirmation.

  4. After completion, use Show Export in Finder and listen in the intended player. Keep the export’s confirmation separate from any mixer adjustments made later.

There is no instruction here to ignore the warning and save an unprotected clipping mix. Cancellation does not remove a previously completed export.

What the reduction does and does not promise

The current policy targets −1.0 dBFS sample peak when the clipping-reduction decision is applied. That is a source-defined target, not a measurement of a recording processed for this article. It is not normalization of every export to a target loudness.

This is sample-peak checking, not true-peak measurement, loudness processing or a limiter that changes individual transients. Uniform attenuation keeps the relative stem balance; it does not repair distortion already in the source or separation artifacts.

Master Volume is not an export gain

Turning down Master Volume changes listening only. It is excluded from Export Mix, as is the metronome. Use stem Level changes or the offered whole-mix reduction for the saved balance. Level remains attenuation-only, from −60 to 0 dB.

Export Mix still saves a full-song WAV, AIFF or FLAC using the confirmation snapshot. It is not a loop, region, tempo or pitch export. Review the output decision if you need independent stem files instead.