@whale-av thank you. But now there is sound but no sound effects are added

@erhandemirci No idea..... it works for me..... reverb and echo.......
I could not tell whether the EQ was working so I have added [lowpass] controls for the [biquad~]....... and [highpass] and [notch] and others which you could patch into [biquad~] if you wish.

A new.......this.pd

Check for errors in the console in case something is missing.
David.

I can hear sound effects on Pd-0.55-2 but I can't hear sound effects on my swift code .
new-this.pd

[PdBase sendFloat:26 toReceiver:@"revValue"];
I read from swift revValue and send to parameter >>> 16

maybe I need to send another value ? or I have another problem

@erhandemirci Sorry, I know nothing at all about Swift.
After a quick search on the internet it seems that no externals can be used with swift..... so only objects contained within a basic install of Pd (vanilla) will work.

The only objects I can see that will not work are the filter externals...... [lowpass] etc.
That means unfortunately that you will need to calculate the parameters for [biquad~]
David.