Notes from the
production desk.

6 August 2026 Multi-screen playback from one Mac: the honest limits The spec sheet says the machine supports four displays. The spec sheet is describing a desktop — four monitors showing windows, mostly static, occasionally scrolling. It… 23 July 2026 Routing audio between Mac apps without the virtual cable mess You need the output of one application to become the input of another. On macOS this is a solved problem in the sense that there are… 9 July 2026 Running a show on Apple Silicon: what actually changed The marketing story about Apple Silicon is performance, and the performance is real. The parts that change how you build a live video rig are less… 25 June 2026 Where the latency in your video chain is actually hiding Someone waves at the camera and the wall responds visibly late. The room notices. Everyone blames the network, because the network is the part nobody can… 11 June 2026 Pixel pitch, viewing distance, and how many pixels you actually need An LED wall's resolution is not a number you choose. It is arithmetic performed for you by whichever panels the hire company had in the warehouse,… 28 May 2026 DeckLink output from a Mac: the parts that bite SDI is refreshingly binary. Either the switcher locks to your signal or it does not, and there is no "it's mostly working". That makes it the… 14 May 2026 Getting ProPresenter onto a second surface without a second Mac The room has a main screen and now it has an LED wall down the side, or a foyer display, or a stage-left panel that needs… 30 April 2026 Why your aggregate device drifts, and what to do about it You need more inputs than one interface has, so you make an aggregate device. Two interfaces, one device, sixteen channels. macOS builds it in about ten… 16 April 2026 What an LED processor actually wants from your Mac You have built a canvas that matches the wall exactly. It is 3840 × 1152, because that is what the panels add up to. You plug… 2 April 2026 Projection mapping on a Mac, from an empty room Most introductions to projection mapping start with content — here is a nice loop, here is how to warp it onto a wall. That order is…