fix(spectool): rename --wav flag to wav subcommand for consistency

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

4 files changed, 8 insertions, 8 deletions

diff --git a/doc/HOWTO.md b/doc/HOWTO.md
index cc43e7c..bfb47fd 100644
--- a/doc/HOWTO.md
+++ b/doc/HOWTO.md
@@ -262,7 +262,7 @@ Requires `ffmpeg` for `.aif` input files. Output uses v2 format (OLA, Hann, hop=
 To verify or inspect a `.spec` file as audio:
 
 ```bash
-./build/spectool --wav input.spec output.wav
+./build/spectool wav input.spec output.wav
 ```
 
 Produces a mono 16-bit PCM WAV at 32 kHz using IDCT-OLA synthesis (no synthesis window —
diff --git a/doc/TOOLS_REFERENCE.md b/doc/TOOLS_REFERENCE.md
index 6315a17..8614463 100644
--- a/doc/TOOLS_REFERENCE.md
+++ b/doc/TOOLS_REFERENCE.md
@@ -32,7 +32,7 @@ cmake --build build -j4
 ./build/spectool analyze input.wav output.spec --normalize 0.20   # custom RMS target
 
 # Decode .spec → mono 16-bit WAV (32 kHz, IDCT-OLA synthesis)
-./build/spectool --wav input.spec output.wav
+./build/spectool wav input.spec output.wav
 
 # Play .spec file via audio device
 ./build/spectool play input.spec
diff --git a/doc/TRACKER.md b/doc/TRACKER.md
index e2c21aa..75d6455 100644
--- a/doc/TRACKER.md
+++ b/doc/TRACKER.md
@@ -28,13 +28,13 @@ SAMPLE <name>, <freq>, <dur>, <amp>, <attack>, <harmonics>, <decay> [OFFSET <sec
 SAMPLE <asset_id> [OFFSET <sec>]         # ASSET_* from assets.txt
 
 # Asset samples (MP3, non-STRIP_ALL only):
-# MP3 is detected by magic bytes and decoded to spectrogram at tracker_init().
-# Add to assets.txt: NAME, NONE, music/file.mp3, "description"
+# Add to assets.txt with MP3 type: NAME, MP3, music/file.mp3, "description"
+# Decoded to spectrogram at tracker_init().
 SAMPLE ASSET_NAME [OFFSET <sec>]         # Decoded at init; same syntax as .spec
 
 # .spec format: SPEC_VERSION_V2_OLA (version=2). Synthesis uses IDCT-OLA
 # (Hann analysis window, 50% overlap, hop=256 samples at 32 kHz).
-# Decode a .spec to WAV for inspection: spectool --wav input.spec out.wav
+# Decode a .spec to WAV for inspection: spectool wav input.spec out.wav
 
 # Auto-generated notes (no SAMPLE declaration needed):
 # NOTE_C4, NOTE_A#3, NOTE_Eb2, etc.
diff --git a/tools/spectool.cc b/tools/spectool.cc
index 59a56b5..a9d2bd1 100644
--- a/tools/spectool.cc
+++ b/tools/spectool.cc
@@ -439,7 +439,7 @@ void print_usage() {
       "  test_gen <output.spec>                   Generate a test "
       "spectrogram.\n");
   printf(
-      "  --wav   <input.spec> <output.wav>        Decode spectrogram to mono "
+      "  wav     <input.spec> <output.wav>        Decode spectrogram to mono "
       "WAV.\n");
   printf("\nOptions for 'analyze':\n");
   printf(
@@ -499,9 +499,9 @@ int main(int argc, char** argv) {
       return 1;
     }
     return test_gen(argv[2]);
-  } else if (strcmp(command, "--wav") == 0) {
+  } else if (strcmp(command, "wav") == 0) {
     if (argc < 4) {
-      printf("Error: '--wav' requires input .spec and output .wav files.\n");
+      printf("Error: 'wav' requires input .spec and output .wav files.\n");
       print_usage();
       return 1;
     }