Ah that all makes sense. When I perform the piece or practice it, I use an external sound card, but was just running some operations in the computer. So, I guess I will have to start testing the system with the external soundcard at all times. Thanks for the quick responses.

I have learned to keep as few windows open at one time.

Drop outs occurring. . .

My newest patch is making lots of dropout in the audio playback. Too many operations. I am looking for what operations to reduce, but any help with my situation would be appreciated.

My computer:

Macbook Pro
Processor: 2.6 GHz 6-core Intel Core i7
Graphics: Intel UHD Graphics 1536
Memory:16GB 2400 MHZ DDR4

In Pd 54.1 I have these settings right now, but I would like to reduce the delay at least:

44100k sampling (I would like to go to 48k)
50ms Delay (I would like this to get down to at least 30ms)
64 Block Size

Is there something obvious I need to do? The computer is over five years old.

I am using intensive additive synthesis, delays, reverb units, among other operations.

Help. . . .

Thanks for all the ideas.
I do keep wi-fi on, so I will turn that off and as many items as I can, like bluetooth?

The CPU load is getting up to 60%.

As for the Activity monitor it is getting Pd is taking up more than 80% at times. I am also trying to implement a process where I turn on and off using switch~ the osc~'s. I am worried that that may not be a good idea.

I will continue to work on it.

As I am playing live with the additive synthesis portions of the piece am not sure I can go to 80ms delay, but I can see if that helps.

Good morning all,
I am working on employing additive synthesis in my new work. I am building the infrastructure of the piece and running into a problem.

I right now have probably over 200 osc~ objects (And I would like more), freeverb~ objects, distortion objects, and other objects I have created in developing this piece.

I am using a Pd 0.54.1 on a macOS, sample rate 48000, Delay (msec) 30, block size 64,

The mac has a 2.6 GHz 6-Core Intel Core i7, Memory 16GB 2400 MH DDR4, macOS 13.6.6.

I am getting clicking noises in the output. I am assuming I am overloading the system.

Any thoughts and help would be appreciated.

thanks. Got it and it works and your help is much appreciated.

Hey all,
So, what is the functional use of snake~?

I can get the object to work if there is a direct connection to a snake~ out.

However, I tried to use a send~ to a receive~ object with a name like test_snake, and the receive outlet only recognizes the first variable.

Am I doing something wrong? I could see the use of this object if I could send the data to another object, but cannot think of the right object to use to send all of the channels of data.

Oh boy. I did not do a search appropriately. Disregard. Sorry for wasting space.

I am attempting to use sigmund~ to detect low frequencies.

I am putting an osc~ to detect lowest frequencies.

It seems sigmund~ cannot detect frequencies below 45 hertz.

Here is the object I am using:

sigmund~ -hop 65536

Thank you! 1 sample. seems pretty amazing. Thanks though

Hey all,
Just asked a question about latency in audio processing and trying to get cpitchshift to work as best I can and have it be most effective.

I am trying to use cpitchshift to pitch shift down an octave right now mostly and trying to do it by an octave.

For this operation I am trying to downshift an octave using 2048 window size. In the right inlet I am sending -10.5. , , , but read on. . .

So my questions:

1: So, using cpitchshift I believe the variable that you put in the right inlet is the pitchshift using integers as half-steps. But it seems to be off. I tried -12 but the pitch was not an octave. Not even close. I adjusted the float to -10.5 to get approximately an octave. Any ideas? These are low notes I am trying to get. Think 98 hertz to 49 hertz, for instance.

2: What is the latency if I am using 2048 window size? Is there a way to determine the latency?

3: The NB quote at the end: Upwards pitch shifting is limited by the buffer size (1000ms = ca. 3 1/2 octaves at window size 4096.) What does this mean?

4: If I am trying to get very low pitches what between 20 - 75 hertz, what buffer size should I use?

I think that is the gist of my questions. Help.