Turn off sound in iPhone Simulator

Is there an option to turn off the sound on the iPhone Simulator? Or to adjust the volume?

Partial Success - There are no good options

The iPhone Simulator selects the currently selected output at launch. Using Soundflower plugin and sending the audio to nowhere I started the iPhone Simulator. If you then switch to a different, working, output the simulator will remain 'muted' until you restart the simulator. So in general, you can attempt to trick the simulator to output to a dead end output.

Experimental setup - A sample video player

I'm working on a solution to this problem and as a first step created a demonstration video player app. You can download VideoPlayer from GitHub for your own experiments.

First Attempt - Use a 3rd party app to mute it

Tried using Audio Hijack Pro by Rogue Amoeba to hijack the audio stream and mute it. This didn't work and crashes the simulator. Contacted support and they reported that iPhone Simulator does some things that prevent them from hijacking the audio. I also looked into Soundflower and Jack.

Second Attempt - In-app mute

I was thinking maybe you could make a debug option where when in the app and on the simulator sound would be muted. However, within an app, only private APIs have the power to mute or reduce volume for the device. In the book iPhone Open Application Development Chapter 6, Example "What's My Volume' gives sample code for manipulating system-wide sound through the AVSystemController. It might be fun to explore this route, but to make it into a weaponized tool would require a lot of trouble since you need to compile against private headers.

Idea Three

Find a command-line option to pass to the Springboard or iPhone Simulator that will mute sound, or re-enable the volume control within the simulator, and of course be able to still launch the debugger.

Enhancement Request

I filed an Apple Bug Report enhancement request for both iPhone Simulator volume control, request 13428429, and per application volume control in Mac OS X, request 13428420. If you want these features, please file your own bug.

I ran into this -- my (working) music audio was being routed through the iOS simulator before reaching my headphones, making the music tinny and low-quality. This made developing in the sim really annoying. Fortunately there's an easy fix:

• In the simulator, route the incoming sound from your Mac's microphone
• Still in the simulator, route the outgoing audio through your Mac's speakers, or any other audio channel you aren't using

Changing the incoming audio route:

Changing the outgoing audio route:

You can still press the mute button on the simulator as if it were a real device:

Open iOS Simulator, press Hardware > Decrease Volume (⌘↓) until it's muted! I think it was added at Xcode 9.2, and that it's available only when running sim with iOS 11 and above

1. Download the Loopback app

2. In Loopback, create a new virtual audio device (click New virtual device). Rename it if you want (I named it Blackhole).

3. In Simulator, click Hardware > Audio output and choose the name of the virtual audio device that you just created.

You can use something like...

#if DEBUG

   [ myAudioController setVolume: .1 ];

#endif

This way during testing, the app will have a lower volume.

referred from : https://stackoverflow.com/questions/4772112/ios-simulator-sound

>Both the input and output device much match in system sound settings. Often u have them set to different devices. If they don't match, the simulator seems to default to the last connected audio device selected among the input and output devices.

I hope it helps out in any way.

In my case i just set audio output to somewhere which is muted. Like my external screen :)

Solution for tvOS simulator:

Go to menu -> General -> Video and Audio -> turn 'Navigation Clicks' and 'Sound Effects and Music' off

[[MPMusicPlayerController applicationMusicPlayer] setVolume:0.0]; 

This works for device, just give a try for simulator. https://stackoverflow.com/questions/215524/how-do-you-set-the-hardware-volume-in-an-iphone-app

You can even try the reverse of this thread to see. https://stackoverflow.com/questions/302399/sound-not-working-in-iphone-simulator

Simple solution.

• Make sure you have 2 outputs in your mac. For example, built in speakers and headphones.

• Close the iOS Simulator.

• Change the output source to the one you are not using (alt-click over the speaker in the top bar).

• Run again the iOS simulator. It will take its default output source
  to the one in the system.

• Change the output source to the one you are using and enjoy. The iOS simulator doesn't update it's output source when the system changes it.