ERR_INVALID_PARAM when converting AudioClip to FMOD.Sound

Unity
1

I’m trying to convert a Unity AudioClip to an FMOD.Sound and I followed that post:
http://52.88.2.202/questions/question/load-an-audioclip-as-fmod-sound

I have a single FMODSystem object that I use to create various sounds and play them:

FMOD.RESULT result;
FMOD.Factory.System_Create(ref fmodSystem);
result = fmodSystem.init(4, FMOD.INITFLAG.NORMAL, System.IntPtr.Zero);

And I have this method here for converting AudioClips into FMOD.Sounds:

private FMOD.Sound ConvertAudioClip(AudioClip clip){
	float[] samples = new float[clip.samples * clip.channels];
	clip.GetData(samples, 0);
	uint lenbytes = (uint)(clip.samples * clip.channels * sizeof(float));
	
	FMOD.CREATESOUNDEXINFO soundinfo = new FMOD.CREATESOUNDEXINFO();
	soundinfo.length = lenbytes;
	soundinfo.format = FMOD.SOUND_FORMAT.PCMFLOAT;
	soundinfo.defaultfrequency = clip.frequency;
	soundinfo.numchannels = clip.channels;

	FMOD.RESULT result;
	FMOD.Sound sound = new FMOD.Sound();
	result = fmodSystem.createSound("", FMOD.MODE.OPENUSER, ref soundinfo, ref sound);
	Debug.Log(result);
	System.IntPtr ptr1 = System.IntPtr.Zero, ptr2 = System.IntPtr.Zero;
	uint len1 = (uint)0, len2 = (uint)0;
	result = sound.@lock(0, lenbytes, ref ptr1, ref ptr2, ref len1, ref len2);
	Marshal.Copy(samples, 0, ptr1, (int)(len1 / sizeof(float)));
	if (len2 > 0)
	{
		Marshal.Copy(samples, (int)(len1 / sizeof(float)), ptr2, (int)(len2 / sizeof(float)));
	}
	result = sound.unlock(ptr1, ptr2, len1, len2);
	result = sound.setMode(FMOD.MODE.LOOP_NORMAL);
	return sound;
}

However, when I log the result from creating the sound I get an ERR_INVALID_PARAM error. What could be causing this ?

Thanks!

2

Have you modified the wrapper? Because that code you sent won’t compile.

Check to make sure that frequency and channels are greater than zero.

3

Thanks for the answer! I haven’t modified the wrapper. I’m using SquareTangle’s integration http://www.squaretangle.com/FMODUnity.html
A debug of the frequency and channels (Debug.Log(clip.frequency + " " + clip.channels):wink: returns 48000 2 so they are not zero.

4

We do not provide support for the Squaretangle wrapper. You could switch to our official Unity integration.

2 Likes
5

I understand. Thank you, I will switch to your official integration.