This is my first creation. Looks a little rough around the edges.
I wanted to know if anyone out there wanted to take a peek and see if they can't figure out why my Low Pass Filter doesn't work. All I want is a simple Frequency filter on the end of my synth to filter out high frequency sounds. I don't think the LPF does anything at this point.
Well , here it is. Try it out with long delay times and long decay rates. Nice dub style to it.
Toadology
Also here is a link for the same OSM as before but in this one I have added a broken switch. I was trying to make a basic switch to alternate from sine to saw wave. I don't know if this shows that the Selector component is unable to input a Poly input or if I have done this wrong. Seems too simple to be wrong though. Well, here it is, happy trouble-shooting.
Your synth is very cool and it highlights some of the limitations of SM at the moment. First, in relation to the LPF, here are some changes I suggest:
I think it is more natural to control the filter cutoff with pitch going from 0 to 128 ( I know there isnt a mono PitchToFreq converter, but you can use the poly one for now ). Think of the pitch value as a Midi note number with 57=A4=440Hz. If you control the cutoff with frequency, you'll have too much precision for high frequencies and not enough for low frequencies. I normally use resonance going from 1 to 3, I think a resonance of 0 causes the filter to stop working and to need reseting which is not possible at the moment, it needs fixing. I also noticed that it is quite annoying to get zipper noise when you move a knob, something that needs to be fixed in SM so that values change smoothly.
There isnt yet a poly switch, I'll try to create one soon. Actually I'll try to fix the existing selector to work with poly data.
Your final stage LPF is being used for a waveform based on a sine wave. A pure sine wave when filtered remains a pure sine wave. I know that in your case it might not be a pure sine wave because of the delay effect but it will still be similar to a sine wave. My point is that when your synth is setup to use a sine oscillator the final stage LPF wont have much effect appart from changing the amplitude of the wave. Once I fix the selector component to work with poly, you'll be able to have a switch for sine/sawtooth/square and the filter section might then become more useful.
It would be very nice to make your synth evolve while at the same time creating new SM components/features that you might need and fixing bugs.
malc ·
Great suff toadology!
We noticed that your schematic files seemed quite large. Are you by any chance using Bitmaps (.bmp format) for your images? If so, try using the Portable Netwok Graphic format (.png). You'll get smaller files thanks to the compression but with no loss in quality.
jorge ·
toadology wrote: Also here is a link for the same OSM as before but in this one I have added a broken switch. I was trying to make a basic switch to alternate from sine to saw wave. I don't know if this shows that the Selector component is unable to input a Poly input or if I have done this wrong. Seems too simple to be wrong though. Well, here it is, happy trouble-shooting.
I have fixed the Selector component to work with Poly data. The fix is available in the latest version of SM which you can download from [old link]
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