Logic Pro has had a silence remover built in for years. It is called Strip Silence, it works well, and it is aimed at a slightly different job than the one most people arrive looking for. Knowing which job it does saves a lot of confusion.
Where Strip Silence lives
It has been in the same place through Logic Pro X and the versions since it dropped the X.
- Import the audio into a project, or select a region that is already there.
- Select the region in the Tracks area. Strip Silence stays greyed out until an audio region is selected.
- Open the Edit menu and choose Strip Silence.
- Set the four values in the dialog, using the preview to see where the splits will land.
- Click OK. The region becomes several smaller regions with the silence gone.
What the four settings actually do
Logic names these differently from most other tools, which is where people get stuck.
Threshold
The level below which audio counts as silence. Logic states it as a percentage of amplitude rather than in dB, so the numbers look unfamiliar. Start low, around 1 to 2 percent, and raise it only if genuinely silent parts are being kept.
Minimum Time to accept as Silence
How long a quiet stretch has to last before Logic will cut it. Raise this when a performance with short natural gaps is being chopped into confetti.
Pre Attack-Time
Extra audio kept before each surviving section. This protects the very start of a note, which usually creeps in below the threshold before it crosses it.
Post Release-Time
Extra audio kept after each surviving section. This is the one that saves reverb tails and decays, and it is the setting worth being generous with.
Getting the trimmed audio back out as files
This is the step people miss. Strip Silence changes regions inside the project. The files on your drive are still the long ones. To end up with shorter files you have to write them out.
- Select the regions you want, then use File, then Export, then Regions as Audio Files. Each region becomes its own file.
- Or select the regions and use Bounce Regions in Place, which writes new audio and keeps it in the project at the same position.
- Check the bit depth and sample rate in the export dialog. It defaults to the project settings, which are not always what the original files were.
Where this gets slow
For a handful of regions inside a song you are already working on, Strip Silence is the fastest route there is. It is already open, and the preview is excellent.
The friction shows up when the audio is not in a project yet. A folder of 40 stems from a collaborator means creating a session, importing all of them, selecting them, running Strip Silence, checking the results, then exporting everything back out and hoping the naming survived. That is a lot of round trip for a job that is really just about the files.
That is the gap CutTheBullshitBrooo fills. You drop in stems, exports or whole folders, it finds the useless silence at the end of each file, and every cut gets a waveform preview before anything happens. Threshold, safe time and fade are the three controls. Originals stay untouched, and clean copies export separately.
It also reads each file and works out which instrument it is, tags it in its own color across 14 categories, and can rename the whole batch on the same pass. So the folder comes back trimmed and readable without ever opening a session.