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Distorted Audio When Recording External Mics With AVCaptureSession and AVAssetWriter
I’m working on a macOS app, written in Swift. My goal is to record audio from an external microphone, e.g., one connected via USB. For this, I’m using an AVCaptureSession and recording its output with an AVAssetWriter. This works perfectly in principle (and reliably with internal microphones, for example). The problem occurs after my app has successfully completed the first recording and I then want to make additional recordings (which makes me think it might be process-dependent, because it works again after restarting the app). The problem: Noisy or distorted-sounding audio files. In addition, the following error message appears in the Console from CoreAudio / its AudioConverter: Input data proc returned inconsistent 512 packets for 2048 bytes; at 3 bytes per packet, that is actually 682 packets It is easy to reproduce. This problem is reproducible even if I don’t configure the AVAssetWriter manually and instead let it receive its audioSettings using a preset from an AVOutputSettingsAssistant. I’m running on macOS 15.0 (24A335). I’ve filed a feedback including a demo project → FB15333298 🎟️ I would greatly appreciate any help! Have a great day, Martin
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Oct ’24
Testing Right-to-Left localization in a macOS app
I’m currently trying to localize one of my Mac apps for Right-to-Left languages. In Xcode, to test this, I set the language to ‘Arabic’ in the scheme, which then displays the language and mirrors the layout accordingly. I have two questions about this: macOS titlebar buttons: In the title bar at the top, shouldn’t the Close and Minimize buttons also be on the right side (mirrored)? How can I test this? Numerals: My UI still displays Latin numerals (123). I know this is correct in some Arabic-speaking regions, but I’d also like to test cases where Arabic-Indic numerals (١٢٣) are used. Is there a way to configure the scheme to test this?
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