“Popping Sound”

I have an AVAudioEngine,but I don't know how to export the audio in AVAudioEngine to a file. Anyone can help?

In an iOS app, it's possible to have an app that has been backgrounded continue to play audio if the Info.plist setting 'Required background modes includes the item: App plays audio or streams audio/video using AirPlay.Using this key in tvOS seems to have no effect, and audio stops when I open another applicaiton while my AVPlayerViewController is playing audio. Is this a bug with tvOS or is there a different key?

How can you add a live audio player to Xcode where they will have a interactive UI to control the audio and they will be able to exit out of the app and or turn their device off and it will keep playing? Is their a framework or API that will work for this? Thanks! Really need help with this…. 🤩

We selling pre-record attraction audio guide through our app, when we first submit for review we have been told that because the audio files would be use on the cunsumers' device therefore it classified as service on the apple platform we can not direct the payment process to third party, the payment has to be make through Apple. but recently we have just fund out that one of the app has very similar functions but they can sell their audio files through wechat payment system. can anyone tell me why is this?The App is can be fund through the link below:https://itunes.apple.com/cv/app/yu-yin-dao-you-dao-ting-tu-shuo/id1035532946?mt=8there first audio always free all others are chargeable.

Hello,We are trying to send compressed audio data over BLE.Our test setup includes a Linux PC(Peripheral) and an iPhone acting as the Central.We have the below characteristics on the Peripheral for audio transfer.Char1 (Read | Notify)Char2 (Write)We have an use case where audio transfer happens both ways simultaneously using these two characteristics.Peripheral -> Central (using Char1)Central -> Peripheral (using Char2)The Peripheral -> Central transfer seems to be fast enough for audio playback.But with the Central -> Peripheral transfer, we see a considerable lag.This transfer takes more than double the time required for Peripheral -> Central transfer.We also tried sending a connection parameter update request to set the connection interval between 20-21ms.But still we see no increase in the transfer speed.Are we missing out something here that enables faster transfer rates when sending data from the iPhone to PC?

I am using iPhone 8 Plus, IOS version 15.4.1, browser is Safari I played an audio in an audio playlist, when the audio is end it will automatically play the next track of the audio playlist. It will work fine if iPhone screen is not locked. But when the screen is locked, the audio will not play next track. Here is an example link: http://relaxinglive.com/album.php?id=1 Open this link, choose a song. Wait to the end of audio, if the screen is locked then the audio player will not play next track. Note: The issue only happens in my iPhone, It doesn't happen on my MacBook. The issue happen when my iPhone update version to 15.4.1 (the issue doesn't happen before) Is it possible to make the browser play next audio track when screen locked?

Whenever I get a notification, it lowers the audio that I’m currently listening to at the moment. Everywhere I look, the answer I see is just to mute my phone or put it on do not disturb, but I still wish to hear the ringer go off when I get a notification. is there a way I can stop the audio from lowering without needing to mute the ringer?

There has been a bug affecting music streaming from iTunes to AppleTV that started with tvOS 13 and has persisted in each release, including the most recent beta (13.4.5 17L5543d). It seems to primarily affect those streaming music from a PC using iTunes for Windows. A detailed description of the behavior can be found below. If anyone has any suggestions, they would be appreciated.When playing music via iTunes to an AppleTV running tvOS 13 or higher, audio on the AppleTV drops out frequently during song playback. Audio drops about 20 seconds into the track and returns with about 10 seconds remaining before the end of the track. Sound continues playing on unaffected Airplay devices without interruption. It occurs every 1 to 5 songs and seems to be random. It is not track specific (ie it can happen to a specific song, but later that same song can complete without an audio drop). After the sound has dropped, deselecting the affected AppleTV as an audio destin

I've written an audio unit which I've been testing by loading it in the application from the sample code (https://developer.apple.com/library/content/samplecode/AudioUnitV3Example/Introduction/Intro.html).The good part All audio processing works as expected.The problem The audio unit extention's view doesn't show. The extension is registered as having a UI, by the NSExtensionPointIdentifier property being set to com.apple.AudioUnit-UI, and the sample code host will open the custom view pane, but the UI is simply blank.The frustration As said, the audio is being processed, but the UI doesn't appear. And to make matters worse; there is no errors reported, so it's difficult to troubleshoot.The question Why? — What is wrong, since the audio unit won't show its UI?There seems to be some discrepancies in the documentation as to why this could be happening.One place states that it's all about the plist, opting in or out for UI:The name of the main storyboard file for the

I'm trying to play a sound after the NSTimer has counted down, so far I know the selector is being called but for some reason no sound is playing.let timer = NSTimer(fireDate: task.date, interval: 0, target: self, selector: Selector(update), userInfo: nil, repeats: false)NSRunLoop.mainRunLoop().addTimer(timer, forMode: NSRunLoopCommonModes)func update() { backgroundMusic = self.setupAudioPlayerWithFile(music, type:mp3) backgroundMusic.volume = 1 backgroundMusic.prepareToPlay() backgroundMusic.play() println(we made it!) }func setupAudioPlayerWithFile(file:NSString, type:NSString) -> AVAudioPlayer { / var path = NSBundle.mainBundle().pathForResource(file as String, ofType: type as String) var url = NSURL.fileURLWithPath(path!) var error: NSError? var audioPlayer:AVAudioPlayer? audioPlayer = AVAudioPlayer(contentsOfURL: url, error: &error) return audioPlayer! }The timer works perfectly, it executes the function update and I know that because I always see the println in the console, but

Some of our clients that have updated their devices to iOS 11 have reported that they are not receiving any sound or vibration when receiving notifications, after testing myself I can confirm that this is the case. The notification is constructed on our API with ping.aiff as the value for sound like so:string appleSound = ping.aiff;var appleNotificationMessage = ${{aps:{{alert:{message}, sound:{appleSound}}}}};I've tried to search around a bit but I haven't found anything, any ideas why this may have stopped working? Notifications are coming through fine they are just silent and as far as I can tell the notification settings on the app are fine.

is there a way to fade out my audio file once the button is pressed, and only have the audio fade on the first loop? At the moment i have an action where the button plays audio and changes page, but the audio comes in two early, i'm trying to find away so that the audio only comes in when the page changes, so if theres an altenative way that would awesome 🙂

My app record audio in background mode. Sometimes the app crashes (I still don't know why) but then it restarts by the system itself. Before being closed, I pause audio recording (inside applicationWillTerminate) and I use play function, after the app reopened, inside a sync function that runs in my app every minute.On my test mobile (Iphone 5s, IOS 13.2.3), the app never crashes (to simulate I have to close the app manually) and always works resume the audio recording in the way that I have described. In the users' mobile (several Iphone models, but higher than 5c) I see in the log file that the app could not resume audio recording after the app has crashed.Sorry because I don't know much more information for now, but if someone could help understand why it is happening, I would be very grateful.Thanks

I'm having difficulties with AudioContext.getOutputTimestamp on Apple devices, which i use for synchronizing animation data to Audio. the difference between Audio Context current time and getOutputTimestamp context time, ie a measure of Audio processing to speaker output latency, which can differ, depending on device. Since the original getOutputTimestamp introduction, I have not been able to use the output timestamp in Safari, but could use it in Chrome on Apple devices. However, since upgrading to iOS 15.1 getOutputTimestamp is giving contextTime values that is approx /10,000 smaller than Audio context current time, when they are supposed to be in the same units as audio context currentTime See the following modification of example from Web Audio examples which illustrates the problems with AudioContext.getOutputTimestamp on Apple devices getOutputTimestamp() reference Any help in understanding why I'm seeing such big differences here on Apple devices wo

Hi all, I am developing a digital signal processing application using AudioToolbox to capture audio from an audio loop application (BlackHole). Environment: MacOS Sonoma 14.4.1 Xcode 15.4 Quicktime 10.5 (I also tested with JRive Media Center) BlackHole 2ch and 16ch Problem: All audio samples received are zero. Steps to recreate: Set Mac Settings Sound audio output to BlackHole 2ch. Set Mac Settings Sound audio input to BlackHole 2ch. Authorise Xcode to access Microphone. In Audio MIDI set Use this device for sound input and Use this device for sound output. Set volume of both to 1.0 . Play a 44.1 16-bit signed integer stereo FLAC file using Quicktime. Start C++ application . Key details of my code below... AudioStreamBasicDescription asbd = { 0 }; asbd.mFormatID = kAudioFormatLinearPCM; asbd.mFormatFlags = kLinearPCMFormatFlagIsFloat | kLinearPCMFormatFlagIsPacked; asbd.mSampleRate = 48000; asbd.mBitsPerChannel = 32; asb