Probably me being daft....

oddson · 7 Apr 2006

Tough to say without a schematic... but it sounds like you're using a poly stream instead of a mono stream...

If you effect is an audio processor then you can use the mono data type and it stays running all the time. Poly responds to incoming MIDI events and shuts down with note-off...

The oscillator is the same but behaves occording to which data type is used...

Or I'm misreading your question and none of this will make any sense 😉

Pilchard · 7 Apr 2006

oddson wrote: Tough to say without a schematic... but it sounds like you're using a poly stream instead of a mono stream...

If you effect is an audio processor then you can use the mono data type and it stays running all the time. Poly responds to incoming MIDI events and shuts down with note-off...

The oscillator is the same but behaves occording to which data type is used...

Or I'm misreading your question and none of this will make any sense 😉

Thanks for the quick reply.

It makes perfect sense and I was just using the stream data type. I've changed the inputs and outputs of the code module to mono and it's no different.

The value from the control is float.

Does that help any?

oddson · 7 Apr 2006

'streamin' in code will take either data type.. what I was saying is the controlling OSC sounds like it is connected to a poly data stream and therefore will only work while there's an active note.

I think you'll need to post the schematic to get any help.

Pilchard · 7 Apr 2006

Here it is: bitcrush.osm

Thanks 🙂

oddson · 8 Apr 2006

The problem is not as simple as I'd hoped... the OSC is outputting a constant signal.

I'm a little week at code so I'll leave it for someone else to say what's wrong there.

Pilchard · 8 Apr 2006

oddson wrote: The problem is not as simple as I'd hoped... the OSC is outputting a constant signal.

I'm a little week at code so I'll leave it for someone else to say what's wrong there.

OK, no problem. Thanks for your help.

I still think it's the osc though. I've noticed that it doesn't actually output audio until the control is moved. I've hooked it up directly to the output (bypassing the code altogether) and it does exactly the same.

Weirdness!

jorge · 8 Apr 2006

Pilchard wrote: I still think it's the osc though. I've noticed that it doesn't actually output audio until the control is moved. I've hooked it up directly to the output (bypassing the code altogether) and it does exactly the same.

I've checked it out by looking at the wave itself, it looks fine. When the frequency gets very high you dont hear it anymore ( at least I dont ) but the wave generated looks fine. I've plugged it to an FFT display and it is showing the correct peak. If you lower the frequency of the sine you'll start hearing it at some point.

Pilchard · 8 Apr 2006

jorge wrote: Pilchard wrote: I still think it's the osc though. I've noticed that it doesn't actually output audio until the control is moved. I've hooked it up directly to the output (bypassing the code altogether) and it does exactly the same.

I've checked it out by looking at the wave itself, it looks fine. When the frequency gets very high you dont hear it anymore ( at least I dont ) but the wave generated looks fine. I've plugged it to an FFT display and it is showing the correct peak. If you lower the frequency of the sine you'll start hearing it at some point.

You're right. Lowering the frequency does make it work. Is it possible then that the oscillator's output is too fast for the code attached?

If that's the case, where should I set the max?

Also, would it be dependant on the host's samplerate?

sambean · 8 Apr 2006

Hey Pilchard, welcome to the forum!

I've had a look at your schematic. what the problem seems to be is the frequency you're starting at is Nyquist, or half the sampling rate. For some reason, perhaps the phase I'm not totally sure, the wave is not crossing zero: it is oscillating from 0 to 1 every sample. It's can be fixed by setting the max frequency of you're knob to 22049 Hz.

Have you tried using the analyser yet? It's great for solving problems like this. If you disconnect the sine from the audio path, then connect it to an analyser, and set it to display 50 samples or so with the wave display module, you'll see what I mean..

Good luck with the rest of the project.

Sam

Pilchard · 8 Apr 2006

Thanks Sam. I thought that might be the case. I've solved the problem now, so it's all good.

I'm having a lot of fun with this app. Just got to get to grips with the backwards code now. 🙂 Loads of useful examples here and helpful people here!

infuzion · 9 Apr 2006

Pilchard wrote: I'm Pilchard and this is my first post!

Hi Pilchard 🙂

Tom7777 · 9 Apr 2006

Hi Pilchard 😀

Shifrin · 9 Apr 2006

Tom7777 wrote: Hi Pilchard 😀

😉

Shif.

Pilchard · 9 Apr 2006

🙂

skOre · 9 Apr 2006

good daze Pilchard!

Pilchard · 9 Apr 2006

I'm completely dazed, as it happens...

Trying to get used to this funny coding language and I have another (probably quite easy to fix) problem with a conditional statement. 🙂

This is what I'm trying to acheive: If a < b then c = a else c = 0

angstrom · 9 Apr 2006

c = (a < b)& a;

I think, I often find I am mistaken in these circumstances.

Pilchard · 9 Apr 2006

angstrom wrote: c = (a < b)& a;

I think, I often find I am mistaken in these circumstances.

Looks OK. Does it assume a 0 value if the condition isn't met?

Shifrin · 9 Apr 2006

Pilchard wrote: Looks OK. Does it assume a 0 value if the condition isn't met?

There's no assumption here, the value is 0 if the condition isn't met 🙂

Shif.

Pilchard · 9 Apr 2006

Shifrin wrote: Pilchard wrote: Looks OK. Does it assume a 0 value if the condition isn't met?

There's no assumption here, the value is 0 if the condition isn't met 🙂

Shif.

So yes then. 🙂

Cool.

And if I wanted the condition to be other than 0, I would use another if statement.

It's beginning to make sense now.

Thanks guys.

Shifrin · 9 Apr 2006

Not sure I follow exactly what you're describing, but here's another example anyways :-

if(x < 0) a = 1; else a = 2;

Would become :-

a = (x < 0)&1 + (x >= 0)&2;

Shif.

Pilchard · 9 Apr 2006

Yup, that's exactly what I meant 🙂

Cheers.

I've just made my first (very basic) Synthmaker noise gate with the help I've had here!