Merge 13 open PRs (tested batch)

README.md

@@ -122,11 +122,11 @@ where things are.
 - **Automation:** volume, pan, mute, send and every plugin parameter; Write, Touch, Latch and
   Trim passes recorded live from the faders; thin, glide, coalesce and convert to clip gain.
 - **Plugins:** 7-band and 1-band EQ, compressor/limiter, expander/gate, de-esser, maximizer,
-  channel strip, room and plate reverbs, mod delay, chorus, flanger, phaser, ring modulator,
-  saturator, lo-fi, rectifier, pitch shifter, time shift, gain, trim, invert, DC removal,
-  signal generator, dither, a subtractive synth, a drum synth and a sampler (plays any WAV,
-  AIFF, FLAC, MP3 or OGG across the keyboard), all original. **CLAP plugins** load too. Any
-  processor runs offline as AudioSuite, and user presets save per plugin.
+  channel strip, room and plate reverbs, mod delay, auto pan, chorus, flanger, phaser, ring
+  modulator, saturator, lo-fi, rectifier, subharmonic, pitch shifter, time shift, gain, trim,
+  invert, DC removal, signal generator, dither, a subtractive synth, a drum synth and a sampler
+  (plays any WAV, AIFF, FLAC, MP3 or OGG across the keyboard), all original. **CLAP plugins**
+  load too. Any processor runs offline as AudioSuite, and user presets save per plugin.
 - **MIDI:** instrument and MIDI tracks, a piano-roll MIDI editor with a velocity lane, an event
   list, a score view, step input, quantize, transpose, real-time properties, Standard MIDI Files,
   and Audio-to-MIDI from a sung or played melody.

ROADMAP.md

@@ -2,7 +2,7 @@
 
 **Stage: pre-alpha** · next: alpha, ~5% and ~110–180 h away (the alpha gate's three failing workflows)
 
-> **Last reviewed:** 2026-10-19 · **Last updated:** 2026-10-23 · **Change:** trivial (Ring Modulator plugin, Float32 file headroom) · **Target:** Avid Pro Tools Ultimate 2026.4.1
+> **Last reviewed:** 2026-10-24 · **Last updated:** 2026-10-24 · **Change:** trivial (Clip List Auto Rename, Strip Silence rectangles, Strip Silence Rename, Strip Silence Extract and Separate, Clip Looping dialog, AudioSuite Vari-Fi speed ramps, Auto Pan plugin, Subharmonic plugin, Ring Modulator plugin, Float32 file headroom) · **Target:** Avid Pro Tools Ultimate 2026.4.1
 
 SoundCraft is a clean-room, pure-Rust digital audio workstation that aims at full parity with
 Avid Pro Tools, and then beyond it: faster, open, scriptable and agent-controllable. This page is
@@ -122,6 +122,14 @@ mutated and truncated movies. Field reports from the first public week are track
 
 ## Progress log
 
+- **2026-10-24:** Clip List › Auto Rename (`clip.auto_rename`) sets the names that editing gives the clips it separates from the selected clips: a name, a starting number, a number of places (zeros before the number) and a suffix. The piece after each cut takes the next name, the piece before it keeps its name, and all the pieces count up one number sequence. Pieces that Strip Silence names with its own Rename fields, or removes, take no Auto Rename name. Copied clips keep their scheme when they are pasted, saved sessions hold the schemes, and Import Session Data brings them along. No readiness percentage change.
+- **2026-10-24:** While the Strip Silence window is open, the Edit window draws a rectangle around each range that Strip would keep on the selected tracks, padded by Clip Start Pad and Clip End Pad, and the rectangles follow the sliders as they move. They are removed when the window closes. `edit.strip_silence_preview` returns the same ranges without changing the session. No readiness percentage change.
+- **2026-10-24:** The Strip Silence window has a Rename button. It opens Rename Selected Clips, where a name, a starting number, a count of zeros and a suffix set the names of the clips that Strip, Extract and Separate leave in the selection (for example SFX023.Reel1, SFX024.Reel1). The app keeps the scheme for later uses of Strip Silence until the app quits, or until Clear and then OK empty it. No readiness percentage change.
+- **2026-10-24:** The Strip Silence window has Extract and Separate buttons. Extract removes the audio and keeps the silent parts of the selection, and Separate separates the clips at the edges of the silence without removing anything. Minimum Strip Duration goes up to 4,000 ms. No readiness percentage change.
+- **2026-10-24:** Clip › Loop… (Cmd+Alt+L) opens the Clip Looping dialog: Number of Loops, Loop Length in the main counter's time format, or Loop Until End of Session or Next Clip. A loop length that is not a whole number of loops cuts the last loop short, and Unloop removes that short loop too. No readiness percentage change.
+- **2026-10-24:** AudioSuite ▸ Pitch Shift ▸ Vari-Fi slows the selected clips down to a complete stop or speeds them up from one, and the pitch follows the speed. Fit To keeps each clip's length and plays two-thirds of it; Extend plays all of it and makes the clip 150 % long. Fades On fades the audio out with the slowdown or in with the speedup. Before, the menu item resampled the clip at a constant speed. No readiness percentage change.
+- **2026-10-24:** A built-in Auto Pan plugin pans the mono sum of a stereo track between left and right. An LFO with seven waveforms moves it at a rate in BPM or at the session tempo, running free, once, in step with the transport, or when the level crosses a threshold or a manual trigger changes; an envelope follower can move it by level instead. Width, Manual and Path set the field, and Output sets the level. No readiness percentage change.
+- **2026-10-24:** A built-in Subharmonic (`subharmonic`) adds the octave below a lower and an upper band of the input, chosen from four frequency ranges, with a direct bass band, a gain and a solo for each band, Drive with six characters, HP and LP filters, and a Mix that keeps one path at full level. No readiness percentage change.
 - **2026-10-23:** A built-in Ring Modulator (`ring_mod`) applies ring modulation, frequency modulation or a positive or negative resonator, and an LFO, an envelope follower or sample and hold moves its frequency. AudioSuite › Modulation › Sci-Fi now runs it instead of the Flanger. No readiness percentage change.
 - **2026-10-19:** Float32 WAV and AIFF-C encoding preserve finite samples above full scale. Integer PCM still clips at full scale. Tests cover whole-file and streaming encoders, non-finite samples, and bounce output with normalization on and off. No readiness percentage change.
 - **2026-10-18:** Mono audio devices receive the average of the stereo channels before output clipping, retaining right-only audio. Surround mixes use the same average after their ITU stereo fold-down. Regression tests cover channel balance, polarity cancellation, clipping, centered mono tracks, each 5.1 channel and several callback sizes. No readiness percentage change.
@@ -166,6 +174,14 @@ mutated and truncated movies. Field reports from the first public week are track
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-10-24 | trivial | Progress log: Clip List Auto Rename; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: Strip Silence rectangles; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: Strip Silence Rename; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: Strip Silence Extract and Separate; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: Clip Looping dialog; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: AudioSuite Vari-Fi speed ramps; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: Auto Pan plugin; readiness estimates unchanged |
+| 2026-10-24 | trivial | Progress log: Subharmonic plugin; readiness estimates unchanged |
 | 2026-10-23 | trivial | Progress log: Ring Modulator plugin; readiness estimates unchanged |
 | 2026-10-19 | trivial | Float32 file encoding preserves finite headroom (#791); readiness estimates unchanged |
 | 2026-10-18 | trivial | Mono device playback retains both stereo sides and surround fold-down channels; readiness estimates unchanged |

apps/soundcraft-cli/tests/it/cli.rs

@@ -24,6 +24,20 @@ fn tmpdir(tag: &str) -> PathBuf {
     dir
 }
 
+/// `path` made absolute with links followed (`/var` becomes `/private/var` on macOS), as the server
+/// prints a root: without the `\\?\` prefix that `canonicalize` adds on Windows.
+fn resolved(path: &Path) -> PathBuf {
+    let path = std::fs::canonicalize(path).unwrap();
+    if !cfg!(windows) {
+        return path;
+    }
+    let text = path.to_str().unwrap();
+    if let Some(rest) = text.strip_prefix(r"\\?\UNC\") {
+        return PathBuf::from(format!(r"\\{rest}"));
+    }
+    text.strip_prefix(r"\\?\").map_or(path.clone(), PathBuf::from)
+}
+
 /// Send `calls` (tool name, arguments) to `soundcraft-cli mcp <args>`; returns whether it exited
 /// cleanly, its stderr, and the stdout lines after `initialize`, one per call.
 fn mcp_session(args: &[&str], calls: &[(&str, Value)]) -> (bool, String, Vec<Value>) {
@@ -114,8 +128,7 @@ fn mcp_automation_roots_confine_the_server() {
 /// the two roots' common parent, `..` out of a root and a link out of one stay refused.
 #[test]
 fn mcp_automation_roots_take_several_folders() {
-    // Resolved, as the server shows the roots (`/var` is `/private/var` on macOS).
-    let base = std::fs::canonicalize(tmpdir("several")).unwrap();
+    let base = resolved(&tmpdir("several"));
     for d in ["in", "in2", "out", "out2", "outside"] {
         std::fs::create_dir_all(base.join(d)).unwrap();
     }

crates/dsp/src/offline.rs

@@ -452,6 +452,78 @@ pub fn pitch_shift(ch: &[Vec<f32>], semitones: f32, sample_rate: f32) -> Vec<Vec
     out
 }
 
+/// Which way [`speed_ramp`] ramps the playback speed.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum SpeedRampChange {
+    /// From normal speed down to a complete stop.
+    SlowDown,
+    /// From a complete stop up to normal speed.
+    SpeedUp,
+}
+
+/// How much of the input [`speed_ramp`] plays, and how long the result is.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum SpeedRampSelection {
+    /// The result is as long as the input. Two thirds of the input are played: the first two
+    /// thirds for Slow Down, the last two thirds for Speed Up, so each joins its neighbour
+    /// without a jump.
+    FitTo,
+    /// All of the input is played, and the result is 150 % of its length.
+    Extend,
+}
+
+/// Plays `ch` with the speed ramping between normal speed and a complete stop, so the pitch follows
+/// the speed. The speed is `1 - u²` for Slow Down and `1 - (1 - u)²` for Speed Up, where `u`
+/// runs from 0 to 1 over the result; both curves average 2/3 of normal speed. With `fades`, the
+/// gain follows the same curve: a fade-out for Slow Down and a fade-in for Speed Up. Every channel
+/// is read at the same positions, and a channel shorter than the others is silent past its end.
+pub fn speed_ramp(ch: &[Vec<f32>], change: SpeedRampChange, selection: SpeedRampSelection, fades: bool) -> Vec<Vec<f32>> {
+    let len = max_len(ch) as f64;
+    let (total, first, played) = match selection {
+        SpeedRampSelection::Extend => ((len * 1.5).round(), 0.0, len),
+        SpeedRampSelection::FitTo => {
+            let played = len * 2.0 / 3.0;
+            (len, if change == SpeedRampChange::SlowDown { 0.0 } else { len - played }, played)
+        }
+    };
+    let out_len = (total as usize).min(MAX_OFFLINE_SAMPLES);
+    let table = SincTable::new(0.97);
+    let hw = table.half_width;
+    // The fraction of the played input reached at `u`, and the speed there (0 to 1).
+    let at = |u: f64| -> (f64, f64) {
+        match change {
+            SpeedRampChange::SlowDown => ((3.0 * u - u * u * u) / 2.0, 1.0 - u * u),
+            SpeedRampChange::SpeedUp => {
+                let r = 1.0 - u;
+                (1.0 - (3.0 * r - r * r * r) / 2.0, 1.0 - r * r)
+            }
+        }
+    };
+    // The interpolation reads the first or last sample of the input for taps before or after it.
+    let last = (len as i64 - 1).max(0);
+    ch.iter()
+        .map(|x| {
+            (0..out_len)
+                .map(|n| {
+                    let (pos, speed) = at(n as f64 / total);
+                    let t = first + played * pos;
+                    let lo = (t - hw).ceil() as i64;
+                    let hi = (t + hw).floor() as i64;
+                    let mut acc = 0.0f32;
+                    let mut j = lo;
+                    while j <= hi {
+                        if let Some(&v) = x.get(j.clamp(0, last) as usize) {
+                            acc += v * table.at(t - j as f64);
+                        }
+                        j += 1;
+                    }
+                    if fades { acc * speed as f32 } else { acc }
+                })
+                .collect()
+        })
+        .collect()
+}
+
 // ---------------------------------------------------------------------------------------------
 // Generators and analysis