Initial release: real-time voice changer in pure Rust

Phase-vocoder pitch/formant shifting, 12 presets, effect chain,
noise gate, WAV recording, full-screen TUI (arrow/mouse control)
and a built-in PipeWire/PulseAudio virtual mic (vois.rs).
GPL-3.0-or-later.

src/config.rs

@@ -0,0 +1,64 @@
+use crate::dsp::chain::Control;
+use crate::dsp::presets::PRESETS;
+
+pub struct AppConfig {
+    pub input: Option<String>,
+    pub output: Option<String>,
+    pub sample_rate: Option<u32>,
+    pub preset: String,
+    pub record: Option<String>,
+    pub pitch: f32,
+    pub formant: f32,
+    pub gate: f32,
+    pub gain: f32,
+    pub run_seconds: Option<u32>,
+    pub tone: f32,
+    pub virtual_mic: bool,
+}
+
+impl AppConfig {
+    pub fn from_cli(cli: &crate::Cli) -> Self {
+        Self {
+            input: cli.input.clone(),
+            output: cli.output.clone(),
+            sample_rate: cli.sample_rate,
+            preset: cli.preset.clone(),
+            record: cli.record.clone(),
+            pitch: cli.pitch,
+            formant: cli.formant,
+            gate: cli.gate,
+            gain: cli.gain,
+            run_seconds: cli.run_seconds,
+            tone: cli.tone,
+            virtual_mic: !cli.no_virtual_mic,
+        }
+    }
+
+    /// Resolve the preset name into an index, defaulting to "Clean" on error.
+    fn preset_idx(&self) -> usize {
+        crate::dsp::presets::Preset::find(&self.preset).unwrap_or(0)
+    }
+
+    pub fn to_control(&self) -> Control {
+        Control {
+            preset_idx: self.preset_idx(),
+            pitch_delta: self.pitch,
+            formant_delta: self.formant,
+            gate_threshold_db: self.gate,
+            gain: self.gain,
+            record: self.record.is_some(),
+            record_path: self.record.clone(),
+            run_seconds: self.run_seconds,
+            tone_hz: self.tone,
+            ..Control::default()
+        }
+    }
+
+    pub fn preset_names() -> String {
+        PRESETS
+            .iter()
+            .map(|p| p.name)
+            .collect::<Vec<_>>()
+            .join(", ")
+    }
+}