getIsPlaying method inside ofxAudioUnitFilePlayer

[dferrandizmont]

Hi admsyn, I'm wondering if there is any option inside ofxAudioUnit to get if the sound we are playing is playing or not like the method inside ofSoundPlayer.

Thank you so much.

[admsyn]

Hey @dferrandizmont , are you talking about the ofxAudioUnitFilePlayer? (EDIT: changed the title)

[dferrandizmont]

Yes, i'm talking about ofxAudioUnitFilePlayer. And I have another question, if I would like to use a reverb parameter for iOS how should I do it?.

Thanks admsyn.

[admsyn]

For reverb, you'd just put a reverb audio unit after your file player. You can check out the params example to see how to find / change parameters on the fly.

The reverb unit has the description kAudioUnitType_Effect kAudioUnitSubType_Reverb2, so:

// in your ofApp class
ofxAudioUnit reverb;

// in your setup()
reverb = ofxAudioUnit(kAudioUnitType_Effect, kAudioUnitSubType_Reverb2);
filePlayer.connectTo(reverb).connectTo(output);

[dferrandizmont]

@admsyn thanks! So, now I would like to edit the reverb I have to do something like this:

float newSpeed = ofMap(x, 0, ofGetWidth(), 0.01, 2, true);

AudioUnitSetParameter(reverb.getUnit(),
                      kVarispeedParam_PlaybackRate,
                      kAudioUnitScope_Global,
                      0,
                      newSpeed,
                      0);

I have to change the line kVarispeedParam_PlaybackRate but I don't know what I have to write here, maybe kReverbParam_DryWetMix ?.

Thank you.

[admsyn]

Yepp, except the params for the reverb2 unit all start with "kReverb2Param_", so if you type that you'll see the list in your autocomplete.

[dferrandizmont]

Ohh thank you so much but now I have another problem, I would like to edit the reverb parameter and now I have this code

float newReverb = ofMap(touch.x, 0, ofGetWidth(), 0, 100, true);

AudioUnitSetParameter(reverb.getUnit(),
                      kReverb2Param_DryWetMix,
                      kAudioUnitScope_Global,
                      0,
                      newReverb,
                      0)

and the reverb always sounds like if its fix to 100%. How can I change it? this is not the right way to do it?, and I saw that the reverb starts default at 100% and I would like to start the reverb at 0% and when I move the finger along the screen it change.

[admsyn]

It's probably expecting a number between 0 and 1 (where 1 is 100%)

[dferrandizmont]

I tried to change the value from 100 to 1 and I have the same problem ..

[admsyn]

Is AudioUnitSetParameter returning an error? Also, can you move this over to the forum or start a new issue for reverb on ios? This is getting a little off topic :)

[dferrandizmont]

No, AudioUnitSetParameter is not returning any error. Okey, i'm going to create a new issue just for that, and about my early question about a method like getIsPlaying?. Thanks adam.