AudioMix | mix music and mic pcm , then encode them into aac file | Audio Utils library

I'm really new to using Unity and C#, I'll do my best to explain the situation and show relevant code.

So basically I am creating a Settings Menu in my game. Options I have are a fullscreen toggle, resolution dropdown, graphics dropdown and volume slider. All of these settings will maintain the selection on a scene change or the game being shutdown and run again, other than the volume slider.

In Unity, the volume slider will maintain it's selection. Just not in the game once it has been built. It will instead default back to middle of the slider.

Here is relevant code.

I am new to C# and Unity and I tried to implement a volume slider. I can now adjust the volume, but the volume resets every time I try to load a new scene.

Could someone tell me how to transfer the volume to other scenes? I am using Unity 2018.3.14f1 and the code I am using for the volume is:

I'm working on a project that involves streaming audio from an AVPlayer video player object into libpd using an MTAudioProcessingTap. For the process loop of the tap, I used PdAudioUnits render callback code as a guide; but I realized recently that the audio format expected by libpd is not the same as the audio coming from the tap — that is, the tap is providing two buffers of non-interleaved audio data in the incoming AudioBufferList, whereas libpd expects interleaved samples. I don't think I can change the tap itself to provide interleaved samples.

Does anyone know of a way I can work around this?

I think that I need to somehow create a new AudioBufferList or float buffer and interleave the samples in place; but I'm not quite sure how to do this and it seems like it would be expensive. If anyone could give me some pointers I would greatly appreciate it!

Here is my code for installing my tap:

Is possible to change a object [SerializeField] for another with script? I try but doesn't work good i need to change the music with controlled with slider in the scene. The script to controller:

I'm trying to only modify the video audio via AVAssetExportSession AudioMix property.

I'm not trimming or doing any other thing except for sound modification. Therefore, I tried using AVAssetExportPresetPassthrough and apply the relevant AudioMix, the AVAssetExportSession works, but the sound remains the same. If I'm changing the preset to AVAssetExportPresetHighestQuality it's much slower but then the audio change works.

Code:

As in my other question I'm using one audio mixer with two groups for the game scene and the main menu scene.

In the main menu scene I have audio source for the music and audio source for the sfx effects. When the game start in the main menu the music is playing automatic on the awake.,

The sfx is not playing and I want that when I change the sfx slider it will sound the sfx effect for a short time so each time I change the slider value it will play the sfx to hear the volume of it.

Audio settings

The sliders as they look like in the game :

sliders in game

The settings script when I set also the audio volumes :

I have audioMixerGroup.audioMixer.GetFloat("AllVolume", out tmp); tmp will have volume in db. I vant to convert db (-80, 0) to slider's value (0, 1).

in short, I need to do How to set a Mixer's volume to a slider's volume in Unity? just the other way around

Had to repost this question because no one answered, it's been 2 weeks, and I am absolutely clueless on why this is happening. I am using the following function to convert a PHAsset to a url:

I am using following code to get videos' URLs from photo albums of iPhone. Then I can open whichever I want in app but I could not find similar way to do it for images. :(