Be shocked, then.

I have a number of apps that will bounce audio directly to mp3 but never do. It's a waste of time. You're asking the app to render and convert at the same time which slows down both processes. Much faster to convert the file after bouncing.

Say, I have a 5 minute file in Digital Performer with a few VIs and 24 tracks of audio. Bounce to disk 48k/24 bit takes under a minute. If I select bounce to mp3, it can take up to 10 minutes. No thanks. Most BIAB files render for me in 20 seconds or so.

I can take a few hours of mixes and rendered files, drop them into TwistedWave and all will become mp3s in 2-3 minutes. A single 5 minute .wav renders in 3–4 seconds.

QuickTime can convert one file at a time. It is possible to batch convert in AppleMusic or iTunes but it's a bit convoluted.

There are also free apps that will do something similar. I'd much, much rather save the time.

BIAB 2025 Audiophile Mac
24Core/60CoreGPU M2 MacStudioUltra/8TB/192GB Sequoia, M1 MBAir, 2012 MBP
Digital Performer11, LogicPro, Finale27/Dorico/Encore/SmartScorePro64/Notion6 /Overture5