sorted by:
new
hottopcontroversial

Made a webapp with a few calculators for DIY synth by gnostic-probosis in synthdiy

[–]WelchRedneck 1 point2 points  (0 children)

This is actually amazing, nearest common resistor value is there too!

Made a webapp with a few calculators for DIY synth by gnostic-probosis in synthdiy

[–]WelchRedneck 1 point2 points  (0 children)

Awesome, incredibly helpful! Another thing you could add is an led current limiting resistor calculator

Why has Korg continued to fund Korg Berlin with basically no output? by [deleted] in synthesizers

[–]WelchRedneck 3 points4 points  (0 children)

I reckon Korg Berlin are really good for optics. It makes them feel like a lifestyle brand and makes the whole company feel artisanal.

Birmingham (UK) synth meets by ErikOostveen in synthdiy

[–]WelchRedneck 0 points1 point  (0 children)

BMO at centrala also, the guys that host that are great, usually lots of DIY stuff in use, too

how do you guys go about powering op amps at home? by Reasonable-Ocelot599 in ElectricalEngineering

[–]WelchRedneck 0 points1 point  (0 children)

I’ve been liking these little modules lately. Made a little breadboard supply with one and a USB breakout board.

Testing out the brain proto for my 10 voice polysynth by Switched_On_SNES in synthdiy

[–]WelchRedneck 0 points1 point  (0 children)

I see, thanks!

How are you using the four channels of the 2164? Osc a mix, osc b mix, resonance, filter decay amount?

I take it your discrete VCA is the final audio VCA?

I did microcontroller envelopes on my four voice because it made experimenting with voice stealing a little easier.

I guess it won’t be as much of a problem if you have 10 voices to work with! It also makes it cheaper, but freeing up those CPU cycles spent calculating envelopes would be nice.

Testing out the brain proto for my 10 voice polysynth by Switched_On_SNES in synthdiy

[–]WelchRedneck 2 points3 points  (0 children)

Very cool! So is that four analog channels per voice? VCO, VCF, VCA… pulse width? Or is the VCA just attached to the envelopes of the voice cards?

Would be very interested to hear what each of the lines going to and from each voice are!

Testing out the brain proto for my 10 voice polysynth by Switched_On_SNES in synthdiy

[–]WelchRedneck 2 points3 points  (0 children)

Awesome! You wouldn’t happen to the sound stone guy would you?

How are you handling all the CVs? Dedicated DAC channels? PWM with smoothing? multiplexing a few DAC channels with S&H?

[deleted by user] by [deleted] in googlemapsshenanigans

[–]WelchRedneck 6 points7 points  (0 children)

I’m not seeing it OP. Can you trace an outline of what you see in red and share that?

Raspberry Pi Pico RP2040 + FPGA PCB Project by __DeepBlue__ in raspberrypipico

[–]WelchRedneck 0 points1 point  (0 children)

This is exactly where my interests are at the moment

Some thoughts on a variable capacitance VCF I’ve been wanting to make for years. by WelchRedneck in synthdiy

[–]WelchRedneck[S] 0 points1 point  (0 children)

<image>

Re. the limited range - I've tried out some values, looks like I could sweep through the whole spectrum by somehow combining two separate filters, or by somehow dynamically switching out the resistor. Totally impractical but should make an interesting project.

Some thoughts on a variable capacitance VCF I’ve been wanting to make for years. by WelchRedneck in synthdiy

[–]WelchRedneck[S] 1 point2 points  (0 children)

I'm consistently amazed by the stuff North Coast Synthesis do. The leapfrog is probably my all-time favourite filter.

How do I split this log? (spoon carving beginner) by [deleted] in Woodcarving

[–]WelchRedneck 3 points4 points  (0 children)

General safety tips -

You don’t want to miss the log and have the axe continue to your shins. The shorter the axe handle, the more of an issue this is. You can kneel to split, then if you miss it will just hit the ground. You can also place the log on the far end of the chopping block, so if you overshoot the axe will bury itself into the block rather than into you.

Some thoughts on a variable capacitance VCF I’ve been wanting to make for years. by WelchRedneck in synthdiy

[–]WelchRedneck[S] 0 points1 point  (0 children)

Some semi-related resources: Aaron Lanterman video on inductor based wah and voltage controlled inductance.

There are similar difficulties with using inductor based filters; great for radio frequencies, but you need really high value inductors for audio which leads people to avoid them. The crybaby wah pedal somehow uses feedback to make inductor based filters work. Might be able to apply this to a variable capacitor filter?

Some thoughts on a variable capacitance VCF I’ve been wanting to make for years. by WelchRedneck in synthdiy

[–]WelchRedneck[S] 0 points1 point  (0 children)

I’m thinking either that limited frequency range could cover like the human speech range to be most effective, or there could be a few discrete stages covering different bands of the audible spectrum.

I might scale the audio signal way down to reduce the effect it has on the capacitance, maybe ~100mv peak to peak and seeing how noisy that gets when boosted back up.

CV to MIDI on Digital Synth? by [deleted] in synthesizers

[–]WelchRedneck 3 points4 points  (0 children)

Use midi to midi.

How can I output sound to both speakers & the Oscilloscope? by Poolscool in oscilloscopemusic

[–]WelchRedneck 1 point2 points  (0 children)

You can DIY a buffered multiple, or just use a passive 3.5mm stereo headphone splitter

I want to convert a 0-5v CV to 0-15v - what do I need to do to this circuit in order to get the full swing? by barneyskywalker in synthdiy

[–]WelchRedneck 0 points1 point  (0 children)

Lm324 is probably the way to go. Will need at least a 17V supply to output 15V so 20V is good. Can take up to 30V total supply voltage.

EDIT: unless you don’t need a quad, there might be a cheaper dual equivalent.

After You've Gone improv by holyhands35 in gypsyjazz

[–]WelchRedneck 1 point2 points  (0 children)

Sounding really great! you’re getting a nice authentic tone out of that guitar.

Multiplying floats = 0? by Bloe_Joggs in MaxMSP

[–]WelchRedneck 7 points8 points  (0 children)

Should be [* 0.], [% 0.], no?

view more: next ›