spsisysMay 17, 2024
Gui Rambo
Apple introduced API that enables recording audio from other apps or the entire system in macOS 14.4, but it's poorly documented and there's no sample code available, so I decided to fix that: https://github.com/insidegui/AudioCap
GitHub - insidegui/AudioCap: Sample code for recording system audio on macOS 14.4+

Sample code for recording system audio on macOS 14.4+ - insidegui/AudioCap

GitHub
May 17, 2024 at 7:06pmIvory for Mac
Show threadDave DeLongMay 17, 2024
@_inside I would love to see DevPubs integrate community stuff like this into the docs
Show threadWayne DixonMay 17, 2024
@_inside I’m not surprised that some audio-based API isn’t documented that well. It seems to be a constant thing with audio APIs.
Show threadJim ReaMay 18, 2024
@waynedixon @_inside You could remove the word “audio” from your post, it would still be accurate.
Show threadUli Kusterer (Not a kitteh)May 17, 2024
@_inside FINALLY caught up with Windows.
Show threadKhaos TianMay 17, 2024
@_inside nice 🙌 I was looking at AVFoundation 😅
Show threadJeff HuffMay 17, 2024

@_inside Is this related to why Audio Hijack has a simpler setup now?

https://weblog.rogueamoeba.com/2024/04/05/our-new-installer-free-setup-comes-to-audio-hijack/

Audio Hijack 4.4 Gains a New Installer-Free Setup

Getting started with Audio Hijack has never been simpler.

Show threadGui RamboMay 17, 2024
@jeffyh Yes
Show threadSiguzaMay 17, 2024
@_inside has OBS not been capable of this for a long time?
Show threadGui RamboMay 17, 2024
@siguza Not sure about OBS, but this used to require a custom kernel extension or something, and it was a huge pain on Apple Silicon. This new API makes things easier.
Show threadSiguzaMay 17, 2024
@_inside apparently it's been supported since macOS 13: https://obsproject.com/kb/macos-desktop-audio-capture-guide
macOS Desktop Audio Capture Guide | OBS

OBS Knowledge Base. Make sure your viewers can hear what you hear from your Mac

Show threadGui RamboMay 17, 2024
@siguza Interesting. No idea what they were using, but this API is new as of 14.4
Show threadSiguzaMay 17, 2024
@_inside a quick grep through the macOS SDK would suggest ScreenCaptureKit.framework?
Show threadSaagar JhaMay 18, 2024
@siguza @_inside You can record system audio with that, yes
Show threaddanielMay 17, 2024
@siguza @_inside iOS 15 got this as well
Show threaddanielMay 18, 2024
@siguza @_inside and I’m referring to the CoreAudio stuff (ATAudioTap*, etc.) but ATAudioTapDescriptionPID is new as of iOS 16
Show threadMatt CampbellMay 17, 2024
@_inside How is this different from using ScreenCaptureKit to capture audio? That was introduced in macOS 13. Thanks.
Show threadGui RamboMay 17, 2024
@matt I can’t answer that because I’m not familiar with ScreenCaptureKit, but I guess with SCK you’d need screen recording permission?
Show threadMnpnMay 18, 2024
@_inside @matt Yeah, AFAIK you need screen recording permissions to be able to request available content so you can filter what you want to record (and thus get audio data from)
Show threadJames AtkinsonMay 18, 2024
@_inside Really interesting thanks. I assume this is what Rogue Amoeba is using now. I thought it was ScreenCaptureKit!
Show threadgh0sti May 18, 2024
@_inside phone call recording?