![]() ![]() Getting a near-perfect output before one even starts editing certainly makes editing easier!įor the paranoid like me, one could record the audio unfiltered, and also apply the filter to a second recording, at the same time. Alternately, with Audio Hijack Pro, one could choose to save both the filtered and unfiltered audio by having two output blocks (see illustration). ![]() Audio Hijack’s support for Apple’s sound isolation offers an intriguing possibility for recording audio in a noisy place: the app can - in almost real-time - remove noise such as the whirl of computer fans, street noise and record it.Īrguably, this may not be the wisest idea since the filter going awry would ruin the “master recording.” I’ve stuck to applying AUSoundIsolate in post-production editing in Ferrite for podcasting, just to be safe - I can roll it back if I don’t like how it filtered (not necessary thus far, happily). I wondered: could it be that Sound Isolation could be there, too? Indeed, it is: any audio going through Audio Hijack can be pushed through the AUSoundIsolation “block,” which even sports a nice slider to move between more “wet” (less noise removed) and “dry” (more removed up to the point of painfully sterile at its extreme). microphones) and it can apply filters, including Apple Audio Unit filters, to the audio it grabs before doing something else with it. It can capture it from input devices (e.g. Audio Hijack Pro does a lot more than capture audio from apps. That made me curious where else it might show up. I could skip the weird journey into a video editor to fix audio and apply it directly in Ferrite. Apple’s Sound Isolation “audio unit” isn’t technically limited to Apple software but available to third parties and Ferrite added support. First, my preferred podcast editing tool - Ferrite - came out with a new version. Then a series of fortunate discoveries converged. Clunky, but workable to get decent audio from not-so-decent sources. Over the subsequent weeks, I edited several more podcast episodes the same way. While FCP is a video editor, on a whim, I imported my audio into Final Cut and discovered that Apple’s machine learning-powered sound isolation did what previous noise removal tools I’ve tried - even the ones in Adobe’s Audition - couldn’t do: it removed almost all the fan noise with minimal violence done to my voice’s tone. It just so happened that I had updated Final Cut Pro before this incident and the latest release added what Apple calls Sound Isolation, a feature the company has been gradually exposing in various parts of MacOS such as FaceTime. If the one recording sounded like I was broadcasting from a wind tunnel, the other was mimicking a poor telephone call. While my office’s M1 Mac mini manages to avoid noticeable fan noise even with Teams, my Intel-sporting laptop made its strain quite audible.Īlways one for redundancy, I used Audio Hijack Pro to record not just from my laptop’s microphones (I know veteran podcasters are wincing right now), but also a second source for podcast audio from my Apple AirPods Pro (wincing further). My co-host Jason and I typically use Microsoft Teams to coordinate our podcast recording and no one would accuse Teams of being lightweight. ![]() The result was as messy as one might expect: the whirl of the laptop fan in the background of the track made it seem almost unusable. While I usually use a nice condenser microphone in a carefully isolated space to produce something approximating studio quality recording, I found myself lying on my bed, coherent enough (maybe) to record, but certainly not using anything (even possibly) approximating a studio microphone. It all started a few months ago when I was recovering from a nasty flu ahead of recording an episode of Zippy the Wonder Snail. A series of little discoveries moved me to making those tools my one-stop-mic-enhancement shop for OBS Studio and beyond. I use Audio Hijack Pro, Loopback and Farrago as the core of our workflow on Zippy the Wonder Snail. Longtime Mac users who have any level of need for professional audio tools have probably encountered veteran developer Rogue Amoeba and their suite of tools. ![]()
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