- Download and install Audio Hijack 4 from the Rogue Amoeba website.
- Once installed, select New Session from the bottom right.
- From the Template Chooser select Blank.
- Drag System Audio in from the Blocks panel on the right.
- Search for MiniMetersServer in the Blocks panel and drag it in.
- Drag Output Device into the Session so the arrangement is as shown.
- Click Run from the bottom left.
- Open MiniMeters and click Settings from the bottom right.
- Under the Audio Device panel and choose "MiniMeters Plugin" from the Audio Device section.
Additional Options: If the visuals on MiniMeters are delayed try changing the Latency from the Advanced tab inside of Audio Hijack's Settings.