Understanding Peak Pro Temp Guide
Peak Pro is a desktop audio workstation that runs mostly on macOS but has seen Windows ports over the years. When people search for a Peak Pro Temp Guide, they usually hit one of two walls: either their disk space is disappearing during long mixing sessions, or they can't find where temporary render files and backup projects are stored. Neither problem is catastrophic, but both get annoying fast. A temp guide in this context isn't a single menu item you click. It covers three separate buckets: session cache files (roughly .peakprocache or similar staging folders), auto-save backups (usually in ~/Library/Application Support/Apogee/Peak Pro/Autosave/), and bounced/stem renders sitting in your project folder. The first two live in hidden system directories. The third lives wherever you told Peak Pro to put it when you set up the session. I learned this the hard way in 2018 while working on a six-hour continuous mix for a documentary client. Peak Pro was chewing through about 4.2 GB per hour on my main drive. The cache folder had grown to 38 GB and the autosave directory was another 12 GB. I had roughly 9 GB left on the system volume. The DAW didn't warn me once. It just kept writing.
Where the Files Actually Live
Session cache: ~/Library/Caches/Apogee/Peak Pro/ — this folder holds pre-rendered waveforms, scratch files, and undo buffers. Clearing it is safe, but Peak Pro will rebuild it from scratch on the next session load, which takes time on large projects. Autosave folder: ~/Library/Application Support/Apogee/Peak Pro/Autosave/ — each autosave creates a numbered folder. These are full project files, not thumbnails. If you autosave every five minutes during a long session, expect these to accumulate fast. Project folder: Wherever you saved your .peakpro or BWF session. Inside, you'll find subfolders for media, exports, and sometimes a folder called "Temp" if you've been bouncing stems manually.
Manual Cleanup Workflow
Close Peak Pro first. I don't care how confident you are about leaving it open — writing happens in the background even when you think the app is idle. Then open Finder, press Shift+Command+G, paste the cache path, and press Go. Delete everything inside the cache folder except any file that's currently locked by another process (you'll get an error for those; skip them). Same thing for the autosave folder — delete all but the last two autosave versions. Beyond that, you're keeping clutter. This routine takes about four minutes on a project that's been running for a week. Before I started doing this, I'd lose half a day trying to figure out which process was locking a file. Now I just nuke the cache and move on.
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When Manual Cleanup Isn't Enough
Here's the thing nobody tells you about Peak Pro's temp management: the DAW doesn't respect macOS Storage Management warnings reliably. I've seen the system tell me I was at 98% capacity and Peak Pro would still try to write a 6 GB bounce file. It happened on a MacBook Pro with a Samsung 970 EVO. The system paused briefly, then Peak Pro recovered and kept going. By the time I caught it, the final bounce was corrupted because the disk had run out of space mid-write. The workaround I use now is simple but brutal. Before any long render or stem bounce, I run a quick Terminal command to check available space: df -h ~/Desktop
If the result shows less than 15 GB free on the target volume, I move the session media to an external drive first. External drives have faster sustained write speeds on my setup anyway, and it removes the risk of filling up the system partition. Takes about three minutes to relocate everything and relink in Peak Pro's media manager.
Preventive Settings You Can Change Today
Open Peak Pro and go to Preferences > Sessions. Look for the cache and autosave interval settings. Default autosave is every five minutes. Change it to fifteen. Default cache behavior keeps everything in RAM until you explicitly export. That's fine for small sessions. For anything over two hours of audio, I set a manual cache flush button in my workflow instead. Also check Preferences > Audio > Buffer Size. A higher buffer reduces CPU spikes during playback and means Peak Pro writes fewer intermediate temp files. My standard template uses a 1024-sample buffer at 96 kHz. It's not the lowest latency option, but it stops the temp file accumulation during playback-heavy passes.
What Peak Pro Temp Guide Won't Tell You
Peak Pro doesn't have a built-in disk cleanup wizard. Third-party apps like OnyX or CleanMyMac will touch some of these folders, but they sometimes miss the autosave directory because it lives in Application Support rather than the standard Caches path. If you rely on a cleanup app, verify manually after each run. I've been burned twice by apps that claimed to have cleaned the cache but actually skipped the autosave folder entirely. Another overlooked issue: Peak Pro's temp files don't always get deleted after a successful bounce. If you're bouncing to WAV and the process completes, the scratch files remain until you close the session. They disappear on close, but if Peak Pro crashes mid-bounce, you're left with orphaned temp files eating space. I keep a monthly script that scans both the cache and autosave paths and deletes anything older than 30 days. It runs automatically on the first Monday of each month.
When to Consider a Different DAW
If you're working on sessions consistently over four hours with heavy plugin automation, Peak Pro's temp handling becomes a recurring problem rather than a one-off cleanup task. I've moved some clients to Reaper for long-form documentary work specifically because Reaper gives you explicit control over scratch file paths and auto-cleanup behavior. Reaper's default scratch folder is user-configurable and it empties on session close reliably. That difference matters when you're juggling multiple drives and tight deadlines. Peak Pro is still excellent for short sessions, live recording, and music editing under two hours. Just don't pretend the temp management is bulletproof. Treat the cache like a guest toilet — clean it before visitors arrive, and don't leave it overflowing when they leave.
