Recorder.InputFactory must be specified if Recorder.Source set to Factory

BrendanHutchins · February 2021

I am having some issues with instantiating a custom audio recorder for my application. I've been following the steps in the FAQ (https://doc.photonengine.com/en-us/voice/current/troubleshooting/faq#how_to_use_a_custom_audio_source_) pretty well until I've come to step 3 where I need to create an instance of my class during app initialization. I am doing that, but I have no idea how to link it to the Photon Recorder. I made a clone of the sample AudioClipWrapper. I have been attempting to initialize it in a separate PhotonManager Script in its Start method, where I have this so far:

Recorder audioSource = new MyAudioReaderSource(audioClip);
recorder.InputFactory = (rec) => audioSource;

However, Visual Studio is saying that Delegate 'Func<IAudioDesc>' does not take 1 arguments. If anyone can explain to me a more detailed method of going about using the Factory input source type with Photon Voice, or knows how to remedy this issue would be much appreciated. I've searched high and low for this info but for whatever reason I can't seem to find it.

JohnTube · February 2021

Hi @BrendanHutchins,

Thank you for choosing Photon!

The snippet on the doc is wrong, sorry about that we will fix it:

it should be

recorder.InputFactory = () => new MyAudioReaderSource();

instead of

Recorder.InputFactory = (rec) => new MyAudioReaderSource();

besides, the following line looks wrong:

Recorder audioSource = new MyAudioReaderSource(audioClip);

So in your case all you need is:

recorder.InputFactory = () => new MyAudioReaderSource(audioClip);

BrendanHutchins · February 2021

Thank you that works now! I'll message here if I have any more questions.

BrendanHutchins · February 2021

Ok so the error is gone, but for some reason the recorder.InputFactory is being created as null, therefore outputting the error "Recorder.InputFactory must be specified if Recorder.Source set to Factory". I am declaring the previously mentioned above phrase in an Awake method of one of my manager scripts, and have the Input Source Type of the Photon Recorder set to Factory

JohnTube · February 2021

Hi @BrendanHutchins,

Check if there is no exceptions thrown or errors logged.
Make sure constructor works fine, here is another way of doing this where you could add checks and logs:

private Recorder recorder;
private AudioClip audioClip;

private void Awake() {
    // this.audioClip = // get this
    // this.recorder = // get this
    recorder.InputFactory = MyCustomInputSourceFactory;
}

private IAudioDesc MyCustomInputSourceFactory() {
    MyAudioReaderSource myAudioSourceReader = new MyAudioReaderSource(this.audioClip);
    return myAudioSourceReader 
}

BrendanHutchins · February 2021

Thanks for the response @JohnTube ! So I have done what you said and there appears to be a problem with converting the CustomAudioSource to the InputFactory on my end.

BrendanHutchins · February 2021

https://imgur.com/a/xxBtjLo

JohnTube · February 2021

sorry
use

recorder.InputFactory = MyCustomInputSourceFactory;

instead of

recorder.InputFactory = MyCustomInputSourceFactory();

Recorder.InputFactory must be specified if Recorder.Source set to Factory

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