Popping Sound

I am working on a design that requires connecting an ios device to two audio output devices specifically headphones and a speaker. I want the audio driver to switch output device without user action. Is this manageable via ios SDK?

is NotificationSound as a text which can play when notification come (sound will be text to speech)

After the install of MacOS Mojave Developer Beta 3 I have a very poor sound thorugh my AirPods. The sound is able to compare with if you launch Siri on Mac and listen to music directly after closing Siri on MacOS. I don't has this problem on my iPhone running iOS 12 Developer Beta 3.

I've observed USB audio seems to fail in El Capitan Developer Preview 1 using a CEntrance HiFi-M8. This device supports a range of 2 channel 24 bit formats (44.1KHz, 48.0KHz, 88.2KHz, 96.0KHz, 176.4KHz, 192.0KHz, etc.). While it worked just great in Yosemite, what seems to occur now is a grainy/garbled sound that seems a bit like the wrong format is being played even when 44.1KHz is selected in Audio MIDI setup and a 44.1KHz file is played in iTunes or in Safari.

I have lost sound alerts when sending and receiving emails. How to do I fix this?

Today I was going to use Siri on my iPhone 5C and I found out something: There are no sounds, not even Siri's voice. That's something strange because in my iPad Mini 2 there are all Siri's sounds. Anyone else experiencing this?

In my tvOS App I play video with the AVPlayerViewController and use the externelMetadatafor providing Info to the NowPlayingInfo.I also play audio with the AVQueuePlayer and my custom UI. For audio, I set the infodirectly to the MPNowPlayingInfoCenter.When i run my app an play some audio first, the NowPlayingInfo is displayed correctly.Then I play a video and the NowPlayingInfo is also displayed correctly.But after presenting a video with the AVPlayerViewController, the playback of audioand setting of the info via MPNowPlayingInfoCenter no longer works. I also noticedthat in the Remote-App the NowPlayingInfo still shows the info from the last video.Prior to the tvOS 11 version everything worked as expected. I could play audio andvideo in any order and the NowPlayingInfo was always showing correctly.Is this a bug of tvOS 11 or must i do something else?Thanks.

Xcode 7.1 adds: Interface Builder supports enabling Peek & Pop for segues per <https://developer.apple.com/library/prerelease/watchos/releasenotes/DeveloperTools/RN-Xcode/Chapters/xc7_release_notes.html>I'm seeing the new Peek & Pop/Preview & Commit Segues for some segues, but not others. Where requirements need to be met for this option to appear in IB?

I'm covering my bases here.I have registered my app for remote notifications in my AppDelegate and have included the sound property in the aps object. an example aps is given here: aps = { alert = scrubbed out content-available = 1; latitude = scrubbed out longitude = scrubbed out scrubbed out = 1; sound = BLE_alarmNoti.caf; title = scrubbed out };}If i have a look at the main bundle, the file BLE_alarmNoti.caf is included.How do you add custom sounds to a remote notification? The guide tbh is very ambiguous on this as the section for custom sounds only gives you instructions by making a local notification.the program has to be able to play this custom sound as it is an emergency reminder - if someone is lost, or they have an accident the notification comes from them to another device.Once i've established that the code works, then I'll go onto the next part, which is that it might be a device issue.

So I am working on an app that requires audio files to be played intermittently and it should duck audio coming from the background...(such as music from iPod or Pandora). I understand that you need to activate your audio session, then upon completion of the audio playback, you deactivate the audio session to get the background sound to return to its normal volume. My only problem I am having is that when there is no background audio playing, and the audio session is not active, the volume buttons on the side of the phone control the ringer volume and not the app audio volume. This is a problem for me, because I would like the user to be able use the volume buttons to control the volume of the upcoming audio alerts at all times. When the volume buttons are controlling the ringer, the user has no control over the app audio / alert volume. I know of at least two fitness apps in the app store that are able to duck

I am trying to mix the audio from 2 different hardware audio devices together in real-time and record the results. Does anybody have any idea how to do this? This is on macOS. Things I have tried and why it didn't work: Adding 2 audio AVCaptureDevices to an AVCaptureMovieFileOutput or AVAssetWriter. This results in a file that has 2 audio tracks. This doesn't work for me for various reasons. Sure I can mix them together with an AVAssetExportSession, but it needs to be real-time. Programmatically creating an aggregate device and recording that as an AVCaptureDevice. This sort of works, but it always results in a recording with strange channel issues. For example, if I combine a 1 channel mic and a 2 channel device, I get a recording with 3 channel audio (L R C). If I make an aggregate out of 2 stereo devices, I get a recording with quadraphonic sound(L R Ls Rs), which won't even play back on some players. If I always force it to stereo, all stereo tracks ge

Are you able to have background audio from an app continuously playing sound when you have other apps playing music or sound, such as YouTube and Spotify?

Ive got a 13 pro max, and I wonder if apple forgot that function of hearing the sound in the headsets while recording. Not just afterwards playing it, which takes time. Plus doing documentary film its not always possable to do a second simullar recording, if the sound is bad. Do anybody know what to do?

I'm looking into how to package an Audio Unit consisting of several other audio units. I came up with the following solution, calling the AUAudioUnit render function explicitly from the AUInternalRenderBlock. But the audio unit doesn't seem to run, since mData inside outputData remains uninitialized after the render function has been triggered.Any suggestions?From myAudioUnit.m inheriting from AUAudioUnit:- (AUInternalRenderBlock)internalRenderBlock { return ^AUAudioUnitStatus(AudioUnitRenderActionFlags *actionFlags, const AudioTimeStamp *timestamp, AVAudioFrameCount frameCount, NSInteger outputBusNumber, AudioBufferList *outputData, const AURenderEvent *realtimeEventListHead, AURenderPullInputBlock pullInputBlock) { [_eqAudioUnit.audioUnit renderBlock](actionFlags, timestamp, frameCount, outputBusNumber, outputData, pullInputBlock); return noErr; }; }_eqAudioUnit is an instance of EQAudioUnit (ensuring that allocateRenderResources is invoked before triggering the renderBlock):publi