If the recording is compressed, you can turn up the volume to hear it over the background noise without blowing out your ears, since the louder portions have been limited in volume. This is particularly important if you’re trying to listen to a recording in an environment with a lot of background noise, for example in a car. The overall effect of using a compressor is to make the recording much more listenable with less variation in the volume. If you add a compressor, even if you get super loud, the compressor doesn’t allow the loud sections to get much louder. Without a compressor, all of the rest of the recording will be much quieter to leave enough head room to accommodate the loudest part. Imagine you’re doing a recording and you get SUPER excited about something and holler into the mic. Used properly it can provide a compressor which enhances the audio by compressing the variation of volume to a smaller range, and it does this by lowering the volume of the higher peaks. This is a brick you can drop into the audio workflow to do several things at once. The main thing Dave taught me about was the Audio Unit Effect called AUDynamics Processor. I’m telling you, I’m doing so many more things with my Mac now that it weighs only 2 pounds! We could hand it back and forth between seats with no trouble at all. He sent me the session he uses and I brought it up on my Macbook. I had my 12″ MacBook with me and a Mifi for connectivity so in the car as Steve drove, Dave started teaching me some cool stuff. He does some processing of the audio within the tool, using those Audio Unit Effects I know nothing about. He explained that he uses Audio Hijack when he’s on the road to record his show with John when he’s away from his fancy pants mixer. ![]() When I gave the talk, I simply said that these Audio Unit Effects were things people like Dave Hamilton understands so not to ask me about them! After the talk, Steve and I gave Dave a ride back to Barry’s Midwest Mac BBQ, and we got talking about Audio Hijack. Imagine my surprise when after the talk he told me that I had designed some sessions in a way that wouldn’t have occurred to him so he actually learned something from me!Īudio Hijack comes with Built-in Effects that are written by Rogue Amoeba, but they also give you access to the Apple Audio Unit Effects. ![]() He promised me beforehand he wouldn’t heckle so that was nice. Dave is a musician and is highly knowledgeable about audio, and I was just a little worried I’d say something dumb and he’d call me out. I have to admit I was a bit nervous about doing a talk on Audio Hijack at Macstock because Dave Hamilton of the Mac Geek Gab was going to be in the audience. By the way, you’ll hear me talk about how visual Audio Hijack is – but it’s also completely accessible to the blind! I wrote to Rogue Amoeba (the makers of Audio Hijack) suggesting that it would be really cool if there were a way to share these sessions, and they explained that if you drag the session off of the session view to your desktop you can then give them to other people. Sessions are automatically saved so I have one for the live show and a completely different one for Chit Chat Across the Pond. ![]() When you drag them onto the audio grid you create essentially an audio flow chart, which is called a session. Even though I actually read the manual cover to cover in preparation, it turns out I hadn’t scratched the surface of what it could do.Īudio Hijack has a new and unique interface that allows you to drag bricks down onto the audio grid, where bricks represent microphones, speakers, recorders and more. Once hijacked, you can record the audio, boost the volume, enhance the audio and more. This application is designed to capture audio on a Mac from external physical microphones, software applications and even system audio. Before I explain what I learned, let me back up and explain why you might care about Audio Hijack. ![]() Last week at Macstock, I did a demo of the new Audio Hijack and I’ve learned SO much more about the tool because of it. One of the great things about teaching classes at conferences and user groups is how much YOU learn.
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