feat: add instant mode for near-real-time output0.1.0

3 files changed, 17 insertions, 0 deletions

diff --git a/help.txt b/help.txt
index 013c782..d4aff6e 100644
--- a/help.txt
+++ b/help.txt
@@ -16,6 +16,8 @@ Options
   -L, --list-devices           List microphones and exit.
       --list-models            List Whisper models and exit.
       --download-model=<name>  Download a model and exit.
+      --instant                Aggressive mode — shorter segments for
+                                near-real-time output. Speak slowly.
   -V, --verbose                Show debug output.
   -h, --help                   Show this help.
 
diff --git a/src/args.rs b/src/args.rs
index c27ff78..679d8e1 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -23,6 +23,11 @@ pub struct DMVOPArguments {
     // Show help
     #[arg(long = "help", short = 'h')]
     pub help: bool,
+
+    // Instant mode — aggressive VAD for near-real-time output
+    #[arg(long = "instant")]
+    pub instant: bool,
+
     // Verbose output (show debug messages)
     #[arg(long = "verbose", short = 'V')]
     pub verbose: bool,
diff --git a/src/main.rs b/src/main.rs
index 15f23f7..fabf16c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -116,6 +116,16 @@ async fn main() {
 
     let mut builder = EngineBuilder::new().app_name("dmvop").model(model);
 
+    if args.instant {
+        debug_log!("[dmvop] Instant mode: aggressive VAD for near-real-time output");
+        builder = builder
+            .vad_voiced_onset_ms(40)
+            .vad_whisper_onset_ms(60)
+            .segment_max_duration_ms(800)
+            .segment_word_break_grace_ms(100)
+            .word_break_segmentation_enabled(true);
+    }
+
     if let Some(ref lang) = args.lang {
         debug_log!("[dmvop] Language hint: {}", lang);
         builder = builder.language(lang.as_str());