avaudiosession setpreferredinput

Important:Keep in mind the side effects of an audio session going inactive: If AVAudioSessionCategoryOptionDuckOthers has been set, going inactive will end ducking. Notification constant for SilenceSecondaryAudioHint. Therefore, if an application plans to set multiple preferred values, it is generally advisable to deactivate the session first, set the preferences, reactivate the session and then check the actual values. Coordinates an audio playback or capture session. Indicates an attempt to write a value to an undefined key. Returns the current Objective-C retain count for the object. You can use the SetCategory(String, String, AVAudioSessionRouteSharingPolicy, AVAudioSessionCategoryOptions, NSError) method to set this. In Listing 1 the AVAudioSession has been activated prior to asking for the current hardware sample rate and current hardware buffer duration. New document that Return Value true if the request was successfully executed, otherwise false. I guess the best you can do is typing system_profiler SPAudioDataType, then you can format the output with sed/grep/awk. I then use session.setPrefferedInput to switch the input, when using "BeatsStudio Wireless", it will generate the following: When I try changing to the mini503 it outputs: Which clearly shows that the route has not changed. Also, if an application is using setPreferredInput to select a Bluetooth HFP input, the output should automatically be changed to the Bluetooth HFP output corresponding with that input. Sets the value of the property specified by the key to the specified value. Finally and not specifically related to audio session, but since you mentioned you're working on a VoIP app you may want to check out the Enhancing VoIP Apps with CallKit WWDC session. Using AVAudioSessionCategoryOptionDefaultToSpeaker as an option for the PlayAndRecord category, then immediately setting AVAudioSessionPortOverrideSpeaker is interesting, seeQ&A 1754 for a discussion about how these two ways to route to the speaker are different from each other -- further, if you set AVAudioSessionModeVideoChat it automatically sets AVAudioSessionCategoryOptionAllowBluetooth and AVAudioSessionCategoryOptionDefaultToSpeaker for you. The AVAudioSession, like the AVCaptureSession and AVAssetExportSession is a coordinating object between some number of InputDataSources and OutputDataSources. AVAudioSession should be used to collect and record which is very important. When an application sets a preferred value, it will not take effect until the audio session has been activated. How can I translate the names of the Proto-Indo-European gods and goddesses into Latin? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Meaning of "starred roof" in "Appointment With Love" by Sulamith Ish-kishor. Represents the value associated with the constant AVAudioSessionCategoryAmbient. Constructor to call on derived classes to skip initialization and merely allocate the object. func setPreferredInput(AVAudioSessionPortDescription?) Creates a mutable copy of the specified NSObject. I am also facing the same issue. Here's some information you might find helpful trying to debug this issue a little bit, or at least information gathering if it turns out to be a regression (I am assuming you're on iOS 10). What does "you better" mean in this context of conversation? /* Select a preferred input port for audio routing. The iPhone 4 and 4S have two microphones; "bottom" and "top". This is a very small project created to reproduce the issue. More info about Internet Explorer and Microsoft Edge. Indicates that a change occurred on the specified key. How do I call Objective-C code from Swift? If an application uses the setPreferredInput:error: method to select a Bluetooth HFP input, the output will automatically be changed to the Bluetooth HFP output. 304 North Cardinal St.Dorchester Center, MA 02124. To learn more, see our tips on writing great answers. Represents the value associated with the constant AVAudioSessionModeDefault, Represents the value associated with the constant AVAudioSessionModeGameChat, Represents the value associated with the constant AVAudioSessionModeMeasurement, Represents the value associated with the constant AVAudioSessionModeMoviePlayback. Gets an array that contains descriptions of the session categories that the device can provide. This works! Youve stopped watching this thread and will no longer receive emails when theres activity. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Overriders must call base.AwakeFromNib(). Use SampleRate instead. For example, the internal speaker on the iPhone 6S models only support a sample rate of 48kHz while previous iPhone models supported a collection of sample rates. More info about Internet Explorer and Microsoft Edge, SetCategory(String, String, AVAudioSessionRouteSharingPolicy, AVAudioSessionCategoryOptions, NSError), AddObserver(NSObject, NSString, NSKeyValueObservingOptions, IntPtr), ObserveValue(NSString, NSObject, NSDictionary, IntPtr), AddObserver(NSObject, String, NSKeyValueObservingOptions, IntPtr), AddObserver(NSString, NSKeyValueObservingOptions, Action), AddObserver(String, NSKeyValueObservingOptions, Action), BeginInvokeOnMainThread(Selector, NSObject), Bind(NSString, NSObject, String, NSDictionary), Bind(String, NSObject, String, NSDictionary), CommitEditing(NSObject, Selector, IntPtr), DidChange(NSKeyValueChange, NSIndexSet, NSString), DidChange(NSString, NSKeyValueSetMutationKind, NSSet), GetDictionaryOfValuesFromKeys(NSString[]), OverrideOutputAudioPort(AVAudioSessionPortOverride, NSError), PerformSelector(Selector, NSObject, Double), PerformSelector(Selector, NSObject, Double, NSString[]), PerformSelector(Selector, NSObject, NSObject), PerformSelector(Selector, NSThread, NSObject, Boolean), PerformSelector(Selector, NSThread, NSObject, Boolean, NSString[]), RemoveObserver(NSObject, NSString, IntPtr), RequestRecordPermission(AVPermissionGranted), SetActive(Boolean, AVAudioSessionFlags, NSError), SetActive(Boolean, AVAudioSessionSetActiveOptions), SetActive(Boolean, AVAudioSessionSetActiveOptions, NSError), SetAggregatedIOPreference(AVAudioSessionIOType, NSError), SetCategory(AVAudioSessionCategory, AVAudioSessionCategoryOptions), SetCategory(String, AVAudioSessionCategoryOptions, NSError), SetCategory(String, String, AVAudioSessionCategoryOptions, NSError), SetInputDataSource(AVAudioSessionDataSourceDescription, NSError), SetOutputDataSource(AVAudioSessionDataSourceDescription, NSError), SetPreferredHardwareSampleRate(Double, NSError), M:AVFoundation.AVAudioSession.SetPreferredSampleRate(Double, out NSError), SetPreferredInput(AVAudioSessionPortDescription, NSError), SetPreferredInputNumberOfChannels(nint, NSError), SetPreferredIOBufferDuration(Double, NSError), SetPreferredOutputNumberOfChannels(nint, NSError), SetValueForUndefinedKey(NSObject, NSString), SetValuesForKeysWithDictionary(NSDictionary), WillChange(NSKeyValueChange, NSIndexSet, NSString), WillChange(NSString, NSKeyValueSetMutationKind, NSSet), ObserveInterruption(NSObject, EventHandler), SetAccessibilityCustomRotors(NSObject, UIAccessibilityCustomRotor[]). Sets the value of a property that can be reached using a keypath. return} // Make the built-in microphone input the preferred input. The number of channels for the current input route. Not the answer you're looking for? iPhone input & output, , input & output. This is an smallest example project to reproduce the issue. AVAudioSessionModeVoiceChat VoIP IP AVAudioSessionCategoryPlayAndRecord AVAudioSessionCategoryOptionAllowBluetooth AVAudioSessionModeVoiceChat To set the input, the app's session needs to be in control of routing. To set a preferred input port (built-in mic, wired mic, USB input, etc.) AVAudioSession. setPreferredInput method doesn't work. The currently selected output data source. A tag already exists with the provided branch name. AVAudioSession, setPrefferedInput and switching between multiple Bluetooth Devices I'm working on a VoIP app which needs to allow the user to switch between the in built ear speaker, speaker, wired headset and bluetooth head sets. In iOS 16 the enter of the AVAudioSession Route is at all times MicrophoneBuiltIn - irrespective of if I join any exterior microphones like iRig system or headphones with microphone. Typically, the audio input & output route is chosen by the end user in Control Center. The currently selected input data source. On failure, this contains the error details. Using the AVAudioSessionSetActiveOptionNotifyOthersOnDeactivation option when deactivating will reactivate other non-mixable applications. Application developers should not use this deprecated property. Some iOS devices support getting and setting microphone polar patterns for some of the built-in microphones. areas: * writing to a, Factory that creates instances of DateTimeFormatter from patterns and styles. These returned values will accurately reflect what the hardware will present to the client. Returns a string representation of the value of the current instance. The function below to Setup Audio before TextToSpeech or AVAudioPlayer has worked fairly well since iOS 9.x. Everything is different (and much better) in iOS 15. Click again to stop watching or visit your profile/homepage to manage your watched threads. These preferred values are simply hints to the operating system, the actual buffer duration or sample rate may be different once the AVAudioSession has been activated. use the AVAudioSession setPreferredInput:error: method. iPhone input & output, , input & output. Gets the array of UIAccessibilityCustomRotor objects appropriate for this object. Prior to calling setPreferredOutputNumberOfChannels:error:, an active audio session is required before asking for maximumOutputNumberOfChannels. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. You can register to a few notifications that are posted by the audio system, by using the convenience methods in AVAudioSession.Notifications. When I launch the app without any external mics attached and initiate the AVAudioSession I have the same log as I have on iOS 16: Then I attach the iRig device (which is basically the external microphone) and I have the following log: As you see, the input of the route matches the preferred input of the AVAudioSession. See AVAudioSession.h. How were Acorn Archimedes used outside education? Are you able to resolve this issue? I searched the release notes of iOS 16 and didn't find any mention of AVAudioSession. Generates a hash code for the current instance. C# Copy Indicates a change occurred to the indexes for a to-many relationship. For ports that support data sources (built-in microphone, some USB accessories), applications can discover what data sources are available by querying the AVAudioSessionPortDescription's dataSources property. This can be a very small undertaking created to breed the difficulty. Represents the value associated with the constant AVAudioSessionModeVideoChat, Represents the value associated with the constant AVAudioSessionModeVideoRecording, Represents the value associated with the constant AVAudioSessionModeVoiceChat, Represents the value associated with the constant AVAudioSessionOrientationLeft, Represents the value associated with the constant AVAudioSessionOrientationRight. Developers should not use this deprecated property. setPreferredInput WithBlueTooth not working I finally found the right answer. Ive an iOS Guitar Impact app that will get audio sign from enter, course of it and performs the end result audio again to person through output. I create a playAndRecord AVAudioSession and subscribe for routeChangeNotification notification: When I get a notification - I print the list of available audio inputs, preferred input and current audio route: I have a button that displays an alert with the list of all available audio inputs and providing the way to set each input as preferred: routeChangeNotification was called two times. Once I launch the app with none exterior mics hooked up and provoke the AVAudioSession Ive the next log: That is completely tremendous. Moreover, selecting a Bluetooth HFP output using the MPVolumeView's route picker will automatically change the input to the Bluetooth HFP input. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Description of the object, the Objective-C version of ToString. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. class AVAudioSessionPortDescription Information about the capabilities of the port and the hardware channels it supports. Some information relates to prerelease product that may be substantially modified before its released. Please let me know if there is any way to make the behaviour of iOS 16 the same it is on iOS 15 and below. Connect and share knowledge within a single location that is structured and easy to search. How to see the number of layers currently selected in QGIS. Is this my problem and if so how do I create one? I was just going to leave it as nil but this is the correct answer. There are several cases however where an application must first activate the audio session (after setting the appropriate category, category options and mode), in order to lean about the capabilities of the current configuration before being able to set a "preferred" value. See AVAudioSession.h for further details. avaudistession.,avaudioengine., Avcaptustessionsession. Making statements based on opinion; back them up with references or personal experience. You should see if modifying your setup code and activating the session changes any behavior, and as a test even add an MPVolumeView to see if that allows you to pick the output/input you are intending to select by setting the preferred input/output. Invokes the selector on the current instance and if the obj is not null, it passes this as its single parameter. Whether this object recognizes the specified selector. Then I tried to change preferredInput of the AVAudioSession first to MicrophoneWired, then to MicrophoneBuiltIn and then to MicrophoneWired again: No matter what is preferredInput the input device of AudioSession route is MicrophoneBuiltIn. iOS 7 offers developers more flexibility in terms of selecting specific built-in microphones. Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). And you might management the enter by assigning preferredInput property for AVAudioSession. And you may control the input by assigning preferredInput property for AVAudioSession. If you assume current values will always be your preferred values and for example fill our your client format using the hardware format expecting 44.1kHz when the actual sample rate is 48kHz, your application can suffer problems like audio distortion with the further possibility of other failures. Stops the specified observer from receiving further notifications of changed values for the specified keyPath and context. Use InputNumberOfChannels instead. If you wish to modify audio behavior, including session configuration you can create your own TVIDefaultAudioDevice and provide it as an . Instead use M:AVFoundation.AVAudioSession.SetPreferredSampleRate(Double, out NSError). Weakly typed; Requests a change to the Category. Activates and deactivates the audio session for the application. Moreover, selecting a Bluetooth HFP output using the MPVolumeView's route picker should automatically change the input to the Bluetooth HFP input corresponding with that output. Therefore, asking for the current hardware buffer duration or sample rate before AVAudioSession activation could return incorrect values. TL;DR: Ranging from iOS 16 I face a bizarre behaviour of the AVAudioSession that breaks my app. In iOS 16 the enter of the AVAudioSession Route is at all times MicrophoneBuiltIn irrespective of if I join any exterior microphones like iRig system or headphones with microphone. Configuration modes for Audio, it provides finer control over the Category property. Any recommendation is extremely appreciated. How can citizens assist at an aircraft crash site? I also used it for audio I/O as it provides much better control than Qt's multimedia API. i have using twilio to perform video call across iphone devices. I have the following code: but Xcode keeps giving me errors for the last line stating taht it cannot invoke setPreferredinput with an arguement list of type '(AVAudioSessionPortDescription, NSError?)'. This site contains user submitted content, comments and opinions and is for informational purposes only. rev2023.1.18.43173. Why did it take so long for Europeans to adopt the moldboard plow? Gets an array that contains AVAudioSessionPortDescriptions that list the available audio sources on the device. A: iOS 6 automatically selects the choice of built-in microphone (on devices that have two or more built-in microphones) through the use of audio session modes. Set it like so: [ [AVAudioSession sharedInstance] setPreferredInput:AVAudioSessionPortBluetoothHFP error: &error]; Once recording is done, another device from the list of availableInputs can be picked for playback. @MehmetBaykar No. Important:Applications should set their audio session category and mode then activate the audio session prior to using any of the input selection features. Presents a standard UI to the app user, asking for permission to record. This property will either return an array of supported polar patterns for the data source, for example AVAudioSessionPolarPatternCardioid, AVAudioSessionPolarPatternOmnidirectional and so on, or nil when no selectable patterns are available. If the input port is already part of the current audio route, this will have no effect. Save my name, email, and website in this browser for the next time I comment. Retrieves the preferred number of output channels. Event indicating that the availability of inputs has changed. Releases the resources used by the NSObject object. TL;DR: Starting from iOS 16 I face a weird behaviour of the AVAudioSession that breaks my app. Then I attach the iRig device (which is basically the external microphone) and I have the following log: As you see - the MicrophoneWired appears in the list of available inputs but input of the route is still MicrophoneBuiltIn. Observed changes are dispatched to the observers objectObserveValue(NSString, NSObject, NSDictionary, IntPtr)method. Deprecated. To learn more, see our tips on writing great answers. Registers an object for being observed externally (using string keyPath). Asking for help, clarification, or responding to other answers. outError NSError On failure, this contains the error details. Also, I can subscribe to route change, audio interruption and OS Media Reset/Lost notifications given by the OS - this communication is managed by AVAudioSession - . On failure, this contains the error details. As this approach is too dependent on the output string format of those processes, I didn't use it. Invoked to determine if this object implements the specified protocol. Application developers should not use this deprecated method. The preferred input port for audio routing. Datetime formatting i, Reflections one-stop-shop objectReflections scans your classpath, indexes the Can a county without an HOA or Covenants stop people from storing campers or building sheds? The data sources available for the current input port. describes how to choose a specific microphone "Front", "Bottom", "Rear" and so on when available on a device. Invokes synchrously the specified code on the main UI thread. Indicates that the value at the specified keyPath relative to this object has changed. is determined eithe, General file manipulation utilities. Some information relates to prerelease product that may be substantially modified before its released. Factory method that returns the shared AVAudioSession object. Determines whether input gain is available. Applications may set the audio session option AVAudioSessionCategoryOptionDefaultToSpeaker or use the AVAudioSessionPortOverrideSpeaker override for speakerphone functionality. The problem I have is switching between bluetooth devices, basically, no matter what I do, it always defaults to the last paired device. An array of AVAudioSessionDataSourceDescriptions that list the available sources of the current output route. Can I change which outlet on a circuit has the GFCI reset switch? How could magic slowly be destroying the world? Microsoft makes no warranties, express or implied, with respect to the information provided here. ios Tips on how to finish / cease the casting session with chrome-cast or TV as soon as person kills the applying? Thanks for contributing an answer to Stack Overflow! What is the difference between `let` and `var` in Swift? The order An event indicating the SampleRate has changed. This method takes a AVAudioSessionPortDescription object. Represents the value associated with the constant AVAudioSessionCategoryMultiRoute, Represents the value associated with the constant AVAudioSessionCategoryPlayAndRecord, Represents the value associated with the constant AVAudioSessionCategoryPlayback, Represents the value associated with the constant AVAudioSessionCategoryRecord, Represents the value associated with the constant AVAudioSessionCategorySoloAmbient. Terms of Use | Privacy Policy | Updated: 2014-01-21. Thanks for contributing an answer to Stack Overflow! Note:Applications configured to be the main non-mixable application (e.g., uses the AVAudioSessionCategoryPlayAndRecord category and does NOT set the AVAudioSessionCategoryOptionMixWithOthers option), gain a greater priority in iOS for the honoring of any preferred settings they may have asked for.