Popping Sound

I’m developing a macOS audio monitoring app using AVAudioEngine, and I’ve run into a critical issue on macOS 26 beta where AVFoundation fails to detect any input devices, and AVAudioEngine.start() throws the familiar error 10877. FB#: FB19024508 Strange Behavior: AVAudioEngine.inputNode shows no channels or input format on bus 0. AVAudioEngine.start() fails with -10877 (AudioUnit connection error). AVCaptureDevice.DiscoverySession returns zero audio devices. Microphone permission is granted (authorized), and the app is properly signed and sandboxed with com.apple.security.device.audio-input. However, CoreAudio HAL does detect all input/output devices: Using AudioObjectGetPropertyDataSize and AudioObjectGetPropertyData with kAudioHardwarePropertyDevices, I can enumerate 14+ devices, including AirPods, USB DACs, and BlackHole. This suggests the lower-level audio stack is functional. I have tried: Resetting CoreAudio with sudo killall coreaudiod Rebuilding and re-signing the app Cleari

Hi all, I'm looking for guidance or experiences from others who’ve run into this issue. I'm developing a series of educational apps that teach different languages from English, using a simple flashcard-based format. Each app is fully offline, has no ads, no subscriptions, and contains native audio and culturally relevant images for that specific language. Each language pack (audio + images + data) is around 50MB, and I’m planning to support 50 languages. Because of size constraints and my offline-first approach, it’s not feasible to combine all languages into a single app. To stay user-friendly and efficient: Each app contains only one language. Each has its own name and icon (e.g., “Babel Bash Chinese ”, “Babel Bash Thai”). All use the same visual structure (by design) for brand consistency and usability. Despite this, I’ve had an app rejected under Guideline 4.3(a) – Spam, with the reasoning that it duplicates the functionality of another app I've submitted (even though the language, audio

So, I've been wondering how fast a an offline STT -> ML Prompt -> TTS roundtrip would be. Interestingly, for many tests, the SpeechTranscriber (STT) takes the bulk of the time, compared to generating a FoundationModel response and creating the Audio using TTS. E.g. InteractionStatistics: - listeningStarted: 21:24:23 4480 2423 - timeTillFirstAboveNoiseFloor: 01.794 - timeTillLastNoiseAboveFloor: 02.383 - timeTillFirstSpeechDetected: 02.399 - timeTillTranscriptFinalized: 04.510 - timeTillFirstMLModelResponse: 04.938 - timeTillMLModelResponse: 05.379 - timeTillTTSStarted: 04.962 - timeTillTTSFinished: 11.016 - speechLength: 06.054 - timeToResponse: 02.578 - transcript: This is a test. - mlModelResponse: Sure! I'm ready to help with your test. What do you need help with? Here, between my audio input ending and the Text-2-Speech starting top play (using AVSpeechUtterance) the total response time was 2.5s. Of that time, it took the SpeechAnalyzer 2.1s to get the transcript finalized, Foundat

Hey, I have AirPlay speakers that I want to use as permanent speakers on my Apple TV. It is possible since tvOS 26. I want to delete the delay from the connection to the speakers and tried out the wireless audio calibration, but then the TV speakers go on and it only works there, not on the speakers. Does anyone have a solution?

With the correct corner radius changing in iOS 26, I wondered if there is a way to get properly rounded corners inside containers like sheets without hard-coding a constant value. Here's the results of some experiments I did, example code below. The new in Beta 4 ConcentricRectangle seems nice. Notable here is that it doesn't pick up the larger corner radii from the device corners: If you want all the corners rounded, the isUniform parameter of ConcentricRectangle seems helpful. It doesn't apply the corners in a View in the middle though, not sure if this is an oversight or if this has some purpose: ContainerRelativeShape looks ... interesting ... as of Beta 4, with the larger bottom corners rounded according to the device corners, but the actual bottom corners not fitting the device corners. With ContainerRelativeShape one can also get the middle part to have proper rounded corners in this example ... if you set the outer .containerShape(RoundedRectangle(cornerRadius: 36)) yourself. Notable here is that it t

I developed an educational app that implements audio-video communication through RTC, while using WebView to display course materials during classes. However, some users are experiencing an issue where the audio playback from WebView is very quiet. I've checked that the AVAudioSessionCategory is set by RTC to AVAudioSessionCategoryPlayAndRecord, and the AVAudioSessionCategoryOption also includes AVAudioSessionCategoryOptionMixWithOthers. What could be causing the WebView audio to be suppressed, and how can this be resolved?

I'm developing a safety-critical monitoring app that needs to fetch data from government APIs every 30 minutes and trigger emergency audio alerts for threshold violations. The app must work reliably in background since users depend on it for safety alerts even while sleeping. Main Challenge: iOS background limitations seem to prevent consistent 30-minute intervals. Standard BGTaskScheduler and timers get suspended after a few minutes in background. Question: What's the most reliable approach to ensure consistent 30-minute background monitoring for a safety-critical app where missed alerts could have serious consequences? Are there special entitlements or frameworks for emergency/safety applications? The app needs to function like an alarm clock - working reliably even when backgrounded with emergency audio override capabilities.

Hello Apple Developer Community, I am seeking clarification on the intended display behavior of HLS audio tracks within the iOS 26 (or current beta) native player, specifically concerning the NAME and LANGUAGE attributes of the EXT-X-MEDIA tag. In our HLS manifests, we define alternative audio tracks using EXT-X-MEDIA tags, like so: #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=audio,LANGUAGE=ja,NAME=AUDIO-1,DEFAULT=YES,AUTOSELECT=YES,URI=audio_ja.m3u8 #EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID=audio,LANGUAGE=ja,NAME=AUDIO-2,URI=audio_en.m3u8 Our observation is that when an audio track is selected and its name is displayed in the native iOS media controls (e.g., Control Center or within a full-screen video player's UI), the value specified in the NAME attribute (AUDIO-1, AUDIO-2) does not seem to be used. Instead, the display appears to derive from the LANGUAGE attribute (ja, en), often showing the system's localized string for that l