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Interesting concept of DIY VST3/AU Plugin making with AI for non-coders #882140 03/14/26 07:56 AM Off-Topic
Joined: Mar 2018 Posts: 7,274 Rustyspoon# OP Veteran
OP Rustyspoon# Veteran Joined: Mar 2018 Posts: 7,274	It seems that program itself is a donationware (pay what you want). The concept is pretty interesting.

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882141 03/14/26 08:09 AM Off-Topic
Joined: Nov 2008 Posts: 3,719 DC Ron Veteran
DC Ron Veteran Joined: Nov 2008 Posts: 3,719	Interesting. "Where is the industry going?" is a great question. Honestly, based on my plugin needs and inventory, I'll never make a custom plugin. But still cool. DC Ron BiaB Audiophile Presonus Studio One ASUS I9-12900K DAW, 32 GB RAM Presonus Faderport 16 Too many guitars (is that a thing?)

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882148 03/14/26 10:11 AM Off-Topic
Joined: May 2000 Posts: 22,612 Mi., USA rharv Veteran
rharv Veteran Joined: May 2000 Posts: 22,612 Mi., USA	Huh, wonder whose algorithms that AI was 'trained' on ... I do not work here, but the benefits are still awesome Make your sound your own!

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders rharv #882173 03/14/26 01:59 PM Off-Topic
Joined: Jul 2022 Posts: 3,049 3rd rock from the sun B.D.Thomas Veteran
B.D.Thomas Veteran Joined: Jul 2022 Posts: 3,049 3rd rock from the sun	Originally Posted by rharv Huh, wonder whose algorithms that AI was 'trained' on ... That’s a good question, because this can be a can of worms. About 15 years ago, I programmed a few VST plugins, and for one of them, I came up with an extremely efficient extension of the Fast Fourier Transform. When I posted this on a forum for plugin developers, someone pointed out that I had (without knowing it) come up with the same idea as someone else ten years earlier, who had published it as a master’s thesis. The problem: A few years later, a company had "acquired" the rights to this algorithm, so I couldn’t release my plugin without risking a lawsuit. Who knows what’s hidden in the code generated by AI... Goldmania Bella Listen on Spotify Watch on YouTube Buy on Amazon

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882176 03/14/26 02:16 PM Off-Topic
Joined: Mar 2018 Posts: 7,274 Rustyspoon# OP Veteran
OP Rustyspoon# Veteran Joined: Mar 2018 Posts: 7,274	For the sake of discussion, lets assume the code used was in public domain. The key here is a proof of concept, which I think is brilliant.

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882183 03/14/26 10:33 PM Off-Topic
Joined: Jun 2012 Posts: 3,928 J JohnJohnJohn Veteran
JohnJohnJohn Veteran J Joined: Jun 2012 Posts: 3,928	Originally Posted by Rustyspoon# For the sake of discussion, lets assume the code used was in public domain. The key here is a proof of concept, which I think is brilliant. Misha, this is AMAZING! We are fortunate to be in the midst of a period of rapid advancement of AI in all areas! I look away for a month or two to focus on other things and when I return there are new insanely cool advances that have been made. It is really mind boggling! In my real job I design and code websites and apps. And recently, AI has begun to provide viable ways to generate high quality, highly functional code that would previously have required weeks or months of design and programming! We live in interesting times!

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882184 03/15/26 12:42 AM Off-Topic
Joined: Sep 2010 Posts: 8,206 Sacramento, California dcuny Veteran
dcuny Veteran Joined: Sep 2010 Posts: 8,206 Sacramento, California	I spent some time with Gemini coding up a "lush" reverb using Reaper's .jsfx script. It's not terrible, but Valhalla doesn't have any worries. It took a lot of iterations to get something usable, but maybe I'm using the wrong AI. desc: Householder Cloud with Ducking // Householder matrix with a more sensitive sidechain envelope. slider1:-17<-60, 0, 1>Wet Level (dB) slider2:-12<-60, 0, 1>Dry Level (dB) slider3:0.85<0.1, 0.97, 0.001>Decay (Lushness) slider4:0.5<0.1, 0.99, 0.01>Damping slider5:0.3<0, 1, 0.01>Modulation slider6:50<0, 100, 1>Ducking Amount (%) slider7:150<10, 500, 1>Ducking Recovery (ms) @init B_SZ = 131072; B_MSK = B_SZ - 1; freemem = 0; d1=freemem; d2=freemem+B_SZ; d3=freemem+B_SZ2; d4=freemem+B_SZ3; freemem += B_SZ4; ap1=freemem; ap1l=1453; ap2=freemem+1453; ap2l=1997; freemem += 4000; l1=3433; l2=4547; l3=5641; l4=6823; env = 0; @slider wet = 10^(slider1/20); dry = 10^(slider2/20); g = min(slider3, 0.96); damp = slider4; m_inc = slider5 0.0002; // Ducking sensitivity: Higher % = deeper cut duck_amt = slider6 / 100; rel_coeff = exp(-1/(srate * (slider7/1000))); @sample in = (spl0 + spl1) * 0.5; // 1. IMPROVED DUCKING ENVELOPE // Use a faster attack and a more responsive curve abs_in = abs(in); abs_in > env ? env = abs_in : env = env * rel_coeff; // Apply a scaling factor to 'env' so ducking is audible even at -18dB duck_sense = min(1, env * 2.5); duck_gain = 1.0 - (duck_sense * duck_amt); // DC Block in_dc = in - prev_in + 0.999 * in_dc; prev_in = in; m_ph += m_inc; mod = (sin(m_ph) + 1) * 8; function read_itp(buf, ptr) ( i = floor(ptr); f = ptr - i; buf[i & B_MSK] * (1-f) + buf[(i+1) & B_MSK] * f; ); n1 = read_itp(d1, p1 - l1 - mod); n2 = read_itp(d2, p2 - l2 + mod); n3 = read_itp(d3, p3 - l3); n4 = read_itp(d4, p4 - l4); // 2. Householder Scattering sum_n = (n1 + n2 + n3 + n4) * 0.5; t1 = n1 - sum_n; t2 = n2 - sum_n; t3 = n3 - sum_n; t4 = n4 - sum_n; function diffuse(sig, buf, len, p) ( out = buf[p] - sig; buf[p] = sig + out * 0.6; out; ); f1 = diffuse(t1, ap1, ap1l, pap1 = (pap1+1)%ap1l); f2 = diffuse(t2, ap2, ap2l, pap2 = (pap2+1)%ap2l); // 3. Damping and Limiting lp1 = atan(f1 * (1-damp) + lp1 * damp); lp2 = atan(f2 * (1-damp) + lp2 * damp); lp3 = atan(t3 * (1-damp) + lp3 * damp); lp4 = atan(t4 * (1-damp) + lp4 * damp); d1[p1] = in_dc + lp1 * g; d2[p2] = in_dc + lp2 * g; d3[p3] = in_dc + lp3 * g; d4[p4] = in_dc + lp4 * g; p1=(p1+1)&B_MSK; p2=(p2+1)&B_MSK; p3=(p3+1)&B_MSK; p4=(p4+1)&B_MSK; // 4. APPLY DUCKING TO WET SIGNAL // Multiplying the final wet sum by duck_gain out_L = (lp1 + lp3) * wet * duck_gain; out_R = (lp2 + lp4) * wet * duck_gain; spl0 = (spl0 * dry) + out_L; spl1 = (spl1 * dry) + out_R; I've spent far too much time trying to get a ray-casting version of a studio room simulation to work. -- David Cuny My virtual singer development blog Vocal control, you say. Never heard of it. Is that some kind of ProTools thing? BiaB 2025 \| Windows 11 \| Reaper \| Way too many VSTis.

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882185 03/15/26 01:33 AM Off-Topic
Joined: Mar 2018 Posts: 7,274 Rustyspoon# OP Veteran
OP Rustyspoon# Veteran Joined: Mar 2018 Posts: 7,274	David, Billy showed off his "local" LLM setup sometime ago. It was sort of in the back of my brain. A few days ago I've read on it, downloaded and briefly tested. While it is slower to respond, it produced viable answers, even on intricate questions. There are many free models. Some tailored for "reasoning" some for "coding". I am taking care of a friend, who needs a lot of attention, so not much time to play with these toys right now, but I definitely want to experiment with this FX plugin.

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882186 03/15/26 01:35 AM Off-Topic
Joined: Sep 2010 Posts: 8,206 Sacramento, California dcuny Veteran
dcuny Veteran Joined: Sep 2010 Posts: 8,206 Sacramento, California	Edited: All right, here's a "Studio Simulation" that tries to create a binaural simulation of a sound source in a studio room with wood walls, also a Reaper .jsfx file. I had posted a version earlier, but it wasn't that great. The prior version could only cast a limited number of rays, while bakes the rays into an impulse response, which means the result is much more detailed. This is an interesting technology, but it's a bit like a 3D printer - I'm not sure there are a lot of use cases for it in my life. It's easy to get lost in making a tool that - at the end of the day - just copies something else that's out there. It's way too easy for this sort of thing to become a timesink. I'm really no more the author of this tool as I am something I bought off the shelf. The difference is that something off the shelf had a lot more work go into it to make sure it was useful to lots of people. I've restarted my voice synthesis using LLMs to help with the core functions, but I doubt that is going to be used by anyone other than me, either. But if you're hankering for your own FX, Reaper's [b]jsfx[/i] is a really convenient way to do it. I'm posting the code in case anyone want to try it out for grins and giggles. // --------------------------------------------------------------------------- // Plugin: Professional Studio Spatializer // Author: Gemini AI Collaboration // Date: March 2026 // // PHYSICS LOGIC: // 1. Stochastic Ray Tracing: Bakes 320 unique paths into a lookup table. // 2. Inverse Square Law: Natural volume drop-off based on 1/Distance. // 3. Air Absorption: High-frequency damping as a function of distance. // 4. Wood Warmth: Frequency-dependent absorption (Low-Pass) on reflections. // 5. Physical Diffusion: Stochastic time-jitter (up to 5ms) to smear transients. // // TECHNICAL CONSTRAINTS: // - No scientific notation supported (e.g., use 0.00001, NOT 1e-5). // - Circular Buffer: Power-of-two size (262144) for bitwise masking (& B_MSK). // - Memory: Tables (0+) and Audio (20,000+) are separated to avoid corruption. // --------------------------------------------------------------------------- desc: Pro-Studio Spatializer (Final Build) // --- Sliders --- slider1:0<-60, 12, 0.1>Output Gain (dB) slider2:2.5<0.1, 20.0, 0.01>Distance (m) slider3:0<-90, 90, 1>Source Angle (deg) slider4:10<4, 60, 0.1>Room Width (m) slider5:12<4, 60, 0.1>Room Depth (m) slider6:0.6<0, 1, 0.01>Diffusion (Physical Smear) slider7:0.5<0, 1, 0.01>Wall Warmth (Wood Damping) @init // --- Memory Allocation --- IR_DATA_PTR = 0; // Start of physics tables AUDIO_BUF_PTR = 20000; // Start of audio delay line (prevents clicking) B_SZ = 262144; // ~5.9 seconds at 44.1kHz B_MSK = B_SZ - 1; // Bitwise mask for fast wrapping buf_pos = 0; // Write head for audio buffer // Table Pointers (1024 slots each for safety) impL_T = IR_DATA_PTR; // Left Delay Times (samples) impR_T = IR_DATA_PTR + 1024; // Right Delay Times (samples) impL_G = IR_DATA_PTR + 2048; // Left Gains (linear) impR_G = IR_DATA_PTR + 3072; // Right Gains (linear) // Constants PI = 3.1415926535; C = 343; // Speed of sound m/s DENORM = 0.000000000000001; // Prevents CPU "underflow" spikes function bake_room() ( d = slider2; a_rad = slider3 * (PI / 180); hw = 0.24; // Human head width (meters) // Virtual source coordinates sx = sin(a_rad) * d; sy = cos(a_rad) * d; exL = -hw * 0.5; exR = hw * 0.5; active_rays = 320; seed = 888; // Fixed seed for deterministic acoustics // Calculate base decay based on Wall Warmth base_decay = 0.88 - (slider7 * 0.35); i = 0; loop(active_rays, seed = (seed * 1103515245 + 12345) & 0x7FFFFFFF; i == 0 ? ( // Direct Path logic vx = sx; vy = sy; decay = 1.0; jit = 0; ) : ( // Reflection logic rand_ang = (seed / 0x7FFFFFFF) * 2 * PI; path_base = d + (i / active_rays) * ((slider4 + slider5) * 0.5); // Diffusion: Inject random timing jitter to the rays jit = ((seed % 200 / 100) - 1.0) * slider6 * 0.005; vx = sx + cos(rand_ang) * path_base; vy = sy + sin(rand_ang) * path_base; decay = pow(base_decay, (path_base - d) / 2.5); ); // Distances to virtual ears rdL = sqrt((vx - exL)^2 + vy^2); rdR = sqrt((vx - exR)^2 + vy^2); // Convert to samples + apply diffusion jitter impL_T[i] = ((rdL / C) + jit) * srate; impR_T[i] = ((rdR / C) + jit) * srate; // Inverse Square Law Gain * Decay Coefficient impL_G[i] = (decay / max(1.0, rdL)) * 0.15; impR_G[i] = (decay / max(1.0, rdR)) * 0.15; i += 1; ); ray_cnt = i; // Pre-calculate filter coefficients for @sample shadowL = min(1.0, 1.0 - max(0, slider3 / 100)); shadowR = min(1.0, 1.0 - max(0, -slider3 / 100)); air_loss = max(0.2, 1.0 - (d * 0.03)); wood_lp = 0.03 + (1.0 - slider7) * 0.5; ); @slider g_out = 10^(slider1/20); bake_room(); // Re-calculate acoustics on parameter change @sample // Input + Denormal noise sig_in = (spl0 + spl1) * 0.5 + DENORM; AUDIO_BUF_PTR[buf_pos] = sig_in; outL = 0; outR = 0; idx = 0; loop(ray_cnt, // Linear Interpolation for high-fidelity fractional delays tL = impL_T[idx]; itL = floor(tL); ftL = tL - itL; vL = AUDIO_BUF_PTR[(buf_pos - itL) & B_MSK] * (1 - ftL) + AUDIO_BUF_PTR[(buf_pos - itL - 1) & B_MSK] * ftL; outL += vL * impL_G[idx]; tR = impR_T[idx]; itR = floor(tR); ftR = tR - itR; vR = AUDIO_BUF_PTR[(buf_pos - itR) & B_MSK] * (1 - ftR) + AUDIO_BUF_PTR[(buf_pos - itR - 1) & B_MSK] * ftR; outR += vR * impR_G[idx]; idx += 1; ); // Wood Absorption Stage reflL += wood_lp * (outL - reflL); reflR += wood_lp * (outR - reflR); // Head Shadowing + Air Absorption Stage fL += (shadowL * air_loss * 0.6) * (reflL - fL); fR += (shadowR * air_loss * 0.6) * (reflR - fR); // Final smoothing smear dfL += 0.5 * (fL - dfL); dfR += 0.5 * (fR - dfR); resL = fL * 0.4 + dfL * 0.6; resR = fR * 0.4 + dfR * 0.6; buf_pos = (buf_pos + 1) & B_MSK; spl0 = resL * g_out; spl1 = resR * g_out; @gfx 500 450 // --- GUI Background --- gfx_r=0.08; gfx_g=0.07; gfx_b=0.06; gfx_rect(0,0,gfx_w,gfx_h); // --- Auto-Scaling Logic --- cx = gfx_w / 2; cy = (gfx_h / 2) + 20; max_dim = max(slider4, slider5); view_scale = (min(gfx_w, gfx_h) * 0.75) / max_dim; rw = slider4 * view_scale; rd = slider5 * view_scale; // Draw Room Boundary gfx_r=0.3; gfx_g=0.2; gfx_b=0.1; gfx_rect(cx - rw/2, cy - rd/2, rw, rd, 0); // Metrics gfx_r=0.8; gfx_g=0.8; gfx_b=0.7; gfx_x = 20; gfx_y = 20; gfx_printf("Room Dimensions: %0.1f m x %0.1f m", slider4, slider5); gfx_y += 18; gfx_printf("Path Distance: %0.2f meters", slider2); // Listener (Mics) gfx_r=1; gfx_g=1; gfx_b=1; gfx_circle(cx - 5, cy, 2, 1); gfx_circle(cx + 5, cy, 2, 1); gfx_x = cx - 28; gfx_y = cy + 12; gfx_drawstr("Mics"); // Source Position src_x = cx + sin(slider3 * PI / 180) * slider2 * view_scale; src_y = cy - cos(slider3 * PI / 180) * slider2 * view_scale; // Clip icons to room walls src_x = max(cx - rw/2, min(cx + rw/2, src_x)); src_y = max(cy - rd/2, min(cy + rd/2, src_y)); gfx_r=1; gfx_g=0.5; gfx_b=0; gfx_circle(src_x, src_y, 6, 1); gfx_r=1; gfx_g=0.9; gfx_b=0; gfx_line(cx, cy, src_x, src_y); // Distance visualization // Data Label gfx_x = src_x + 10; gfx_y = src_y - 10; gfx_printf("%d deg", slider3); Last edited by dcuny; 03/15/26 02:11 PM. Reason: New and better code. -- David Cuny My virtual singer development blog Vocal control, you say. Never heard of it. Is that some kind of ProTools thing? BiaB 2025 \| Windows 11 \| Reaper \| Way too many VSTis.

Re: Interesting concept of DIY VST3/AU Plugin making with AI for non-coders Rustyspoon# #882229 03/15/26 02:31 PM Off-Topic
Joined: Sep 2010 Posts: 8,206 Sacramento, California dcuny Veteran
dcuny Veteran Joined: Sep 2010 Posts: 8,206 Sacramento, California	Originally Posted by Rustyspoon# David, Billy showed off his "local" LLM setup sometime ago. It was sort of in the back of my brain. A few days ago I've read on it, downloaded and briefly tested. While it is slower to respond, it produced viable answers, even on intricate questions. There are many free models. Some tailored for "reasoning" some for "coding". I am taking care of a friend, who needs a lot of attention, so not much time to play with these toys right now, but I definitely want to experiment with this FX plugin. I've been re-doing my vocal synth program. Now that I've got the equivalent of a DSP expert on hand, I've been able to get past a number of hurdles. I find that it works well when closely guided. I'm using the free version of Gemini, with occasional assists from the free Pro version when it can't track down a serious bug. I'll probably have to get a subscription, because I keep running into the issue of it having a limited number of tokens and so constantly losing context. It can do common coding things quite well. For example, I'd been planning to use a spectral morphing algorithm of my own design to handle missing phoneme transitions - something that would require tagging phonemes to identify formants. Gemini suggested I use Line Spectral Frequencies instead - an algorithm that's been around since 1974 and used in phone transmission. It relied on LPC filters - something I'd never been able to implement correctly. Gemini free was able to crank out the functions I needed, but Gemini Pro was needed to debug it, where it immediately identified that Gemini free was trying to something nonsensical. Between the two programs I eventually got it working. That's something I wouldn't be able to do on my own. On the other hand, Gemini free is constantly hallucinating away key parts of the program and introducing regressions. By the time it's solved one problem, it's entirely forgotten what the rest of the program does. Sounds like I may need to get a hold of Billy. Edit: I've got a Ryzen AI chip on my computer, so it turns out I can run LLM models locally. Now to see if I can find a model that can understand Lua... Last edited by dcuny; 03/16/26 12:27 AM. -- David Cuny My virtual singer development blog Vocal control, you say. Never heard of it. Is that some kind of ProTools thing? BiaB 2025 \| Windows 11 \| Reaper \| Way too many VSTis.

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