VOX preset tuned against game word assets; add vox_compare tool

README.md

@@ -93,9 +93,11 @@ A short low-level leading hum (80 ms, 75 Hz, -48 dBFS) primes Discord's audio pi
 so the first word is not gated; tune with `VESKSLOP_TTS_HUM_MS` (0 = off),
 `VESKSLOP_TTS_HUM_HZ`, and `VESKSLOP_TTS_HUM_DB`.
 
-**Half-Life presets** (Keith Bell): `VESKSLOP_TTS_PRESET=vox` applies the approximated
+**Half-Life presets** (Keith Bell): `VESKSLOP_TTS_PRESET=vox` applies the Valve VOX
-Valve VOX profile and enables VOX prosody; `VESKSLOP_TTS_PRESET=hev` is a starting point
+profile (pitch 0, rate 15, head size 34, lowering 50) and enables VOX prosody;
-for the HEV suit voice. Values are in `docs/TTS-DESIGN.md`.
+`VESKSLOP_TTS_PRESET=hev` is a starting point for the HEV suit voice. The VOX values were
+tuned against the game's word assets with `tools/vox_compare.py`; details in
+`docs/TTS-DESIGN.md`.
 
 ## Layout
 
@@ -108,6 +110,7 @@ for the HEV suit voice. Values are in `docs/TTS-DESIGN.md`.
 - `setup/run.sh` — run helper (prefix + Xvfb)
 - `setup/veskslop-tts.sh` — Veskslop command-provider wrapper (post-processing included)
 - `setup/vox_parser.py` — NetTTS-style VOX prosody encoder (Flextalk voices)
+- `tools/vox_compare.py` — reference-vs-synthesis metrics for preset tuning
 - `docs/NOTES.md` — registry/CLSID facts, runtime RE notes, gotchas
 - `docs/TTS-DESIGN.md` — integration contract with Veskslop plus engine clarifications
 

docs/NOTES.md

@@ -129,10 +129,14 @@ without them.
 - VOX mode is Flextalk-only. The wrapper enables it with `VESKSLOP_TTS_VOX=1`
   (`VESKSLOP_TTS_VOX_CLEAN=1` drops the stutter wrapper) and it takes precedence
   over `VESKSLOP_TTS_WORDS`.
-- Half-Life presets (`VESKSLOP_TTS_PRESET=vox|hev`) target Keith Bell only. VOX values
+- Half-Life presets (`VESKSLOP_TTS_PRESET=vox|hev`) target Keith Bell only. VOX starts
-  come from NetTTS `nettts_flextalk_vox_profile.reg`: pitch 3, rate 17, prominences 22,
+  from NetTTS `nettts_flextalk_vox_profile.reg` (pitch 3, rate 17, head 52, lowering 40)
-  head size 52, volume 70 (factory: 27/33/17/46/100); `vox` also implies VOX prosody.
+  and is tuned against the game's word assets from `suchipi/half-life-vox-console`:
-  `hev` (pitch 15, rate 24) is an unverified starting point - HL1 credits the suit
+  shipped values are pitch 0, rate 15, prominences 22, head size 34, lowering 50,
+  volume 70. Measured on 38 words vs the game assets: F0 82.3 vs 82.3 Hz, duration
+  22.99 vs 23.36 s, >2 kHz share 0.0172 vs 0.0186 (old approximation: 87.5 Hz /
+  22.28 s / 0.0137). `tools/vox_compare.py` reproduces the comparison. `hev`
+  (pitch 15, rate 24) remains an unverified starting point - HL1 credits the suit
   sounds to Kelly Bailey with no published settings.
 - Flextalk rate/pitch are applied as **vendor tags** (`\!R` = duration factor,
   `\!%` = pitch multiplier), never `-s`/`-p`, because ITTSAttributes override the

docs/TTS-DESIGN.md

@@ -398,16 +398,20 @@ Kerry Watson at factory values. The wrapper implements it as a preset:
     VESKSLOP_TTS_PRESET=vox   # implies VOX prosody unless VESKSLOP_TTS_VOX is set
     VESKSLOP_TTS_PRESET=hev   # HEV suit starting point (see note below)
 
-| Profile value | Factory (Keith) | VOX preset | HEV preset (approx.) |
+| Profile value | Factory (Keith) | VOX preset (tuned) | HEV preset (approx.) |
 | --- | --- | --- | --- |
-| Pitch | 27 | 3 | 15 |
+| Pitch | 27 | 0 | 15 |
-| Speaking Rate | 33 | 17 | 24 |
+| Speaking Rate | 33 | 15 | 24 |
 | Prominences | 17 | 22 | 22 |
-| Head Size | 46 | 52 | 52 |
+| Head Size | 46 | 34 | 52 |
-| Lowering | 40 | 40 | 40 |
+| Lowering | 40 | 50 | 40 |
 | Volume | 100 | 70 | 70 |
 | Expression | 59 | 59 | 59 |
 
+The VOX column starts from NetTTS's approximation (pitch 3, rate 17, head 52, lowering
+40) and is refined against the actual game word assets; see
+"Tuning against the actual game assets" below.
+
 - Presets apply only to `keith-bell`; every other voice keeps its defaults.
 - Precedence: preset < `VESKSLOP_TTS_PROFILE` < `VESKSLOP_TTS_EXPRESSION`.
 - Equivalent explicit override:
@@ -465,16 +469,49 @@ Verified matrix (same line, Keith Bell):
 | Run | Duration | F0 median |
 | --- | --- | --- |
 | factory, no adjustments | 3.35 s | 123 Hz |
-| VOX preset, no adjustments | 5.83 s | 87 Hz |
+| VOX preset, no adjustments | 6.06 s | 82 Hz |
-| VOX preset + `speed=1.0 pitch=0` | 5.83 s, byte-identical | 87 Hz |
+| VOX preset + `speed=1.0 pitch=0` | 6.06 s, byte-identical | 82 Hz |
-| VOX preset + `speed=1.3` | 4.02 s | 84 Hz |
+| VOX preset + `speed=1.3` | 4.02 s | - |
-| VOX preset + `pitch=+3` | 5.83 s | 88 Hz |
+| VOX preset + `pitch=+3` | 6.06 s | 96 Hz |
-| HEV preset, no adjustments | 3.79 s | - |
 
 Registry inspection after a preset run: 26 values in the Keith speaker key in both
-hives, `Pitch=0x3`, `Speaking Rate=0x11`, `Gender=0x2`, `Line Mode=0x1`,
+hives, `Pitch=0x0`, `Speaking Rate=0xf`, `Head Size=0x22`, `Lowering=0x32`,
+`Gender=0x2`, `Line Mode=0x1`,
 `Default Speaker={11260610-C84A-11CE-AEC4-0000C0E9CB87}`.
 
+#### Tuning against the actual game assets (2026-09-22)
+
+Reference: the word WAVs from `suchipi/half-life-vox-console`
+(`public/vox/*.wav`, Valve assets - used locally for analysis only, never committed).
+38 words at 11025 Hz 16-bit, the engine's native rate. `tools/vox_compare.py`
+reproduces the comparison; it reports the cepstrum F0 median, total audible duration,
+energy-weighted spectral centroid and the >2 kHz energy share per word set.
+
+| Metric (38 words) | Game assets | NetTTS approximation | Shipped VOX preset |
+| --- | --- | --- | --- |
+| F0 median | 82.3 Hz | 87.5 Hz | 82.3 Hz |
+| Duration | 23.36 s | 22.28 s | 22.99 s |
+| Spectral centroid | 515 Hz | 479 Hz | 453 Hz |
+| >2 kHz energy share | 0.0186 | 0.0137 | 0.0172 |
+
+Findings:
+
+- Registry `Pitch 0` is the engine minimum and matches the game's F0; the NetTTS
+  approximation (3) was about 5 Hz high.
+- `Speaking Rate 15` matches the word durations within about 1.6%; NetTTS's 17 was
+  about 4.6% fast on this corpus.
+- The game voice is brighter than the approximation. Smaller `Head Size` raises
+  brightness (34 is the engine's effective minimum here; 30 gives identical output) and
+  `Lowering 50` adds a little more, together closing most of the >2 kHz gap
+  (0.0137 -> 0.0172 against 0.0186).
+- The residual centroid difference is mostly the reference's mid/high-band noise floor
+  (game assets), not voice timbre.
+- HEV stays a starting point: no published settings and no word-level reference exists.
+
+Re-run recipe: write the profile to both hives, synthesize the reference word list with
+`build/sapi4host-winlib.exe -v "Keith Bell" -t <word> -o <dir>/<word>.wav`, then
+`tools/vox_compare.py <game-assets-dir> <synth-dir>`.
+
 ### Inline rate/pitch controls (engine-side)
 
 The wrapper consumes NetTTS-style, line-leading controls, so Veskslop and the WebUI do

setup/test-wrapper.sh

@@ -0,0 +1,152 @@
+#!/bin/sh
+# Regression test for the Veskslop TTS wrapper contract. No Wine needed: the wine
+# and engine-host binaries are stubbed, so this checks the arguments the wrapper
+# builds, the registry import it generates, and the voice metadata it publishes.
+#
+# The bug this guards against: rate/pitch sent as ITTSAttributes (-s/-p) override
+# the Flextalk speaker profile, so the VOX/HEV presets sounded too fast and not
+# deep enough. Flextalk must use the sticky vendor tags (\!R / \!%), and neutral
+# sliders must emit neither.
+set -eu
+
+HERE=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
+WRAP="$HERE/veskslop-tts.sh"
+WORK=$(mktemp -d)
+trap 'rm -rf "$WORK"' EXIT
+
+mkdir -p "$WORK/build" "$WORK/bin" "$WORK/out"
+"${MICROSLOP_FFMPEG:-ffmpeg}" -hide_banner -loglevel error -f lavfi \
+    -i "sine=frequency=200:duration=0.3" -ar 11025 -ac 1 -c:a pcm_s16le -y "$WORK/sine.wav"
+
+cat > "$WORK/build/sapi4host.exe" <<'STUB'
+#!/bin/sh
+{ printf 'ARGV:'; for a in "$@"; do printf ' [%s]' "$a"; done; printf '\n'; } >> "$STUB_LOG"
+OUT=""
+while [ "$#" -ge 2 ]; do
+    [ "$1" = "-o" ] && OUT=$2
+    shift
+done
+cp "$STUB_SINE" "$OUT"
+STUB
+
+cat > "$WORK/bin/wine" <<'STUB'
+#!/bin/sh
+[ "${1:-}" = "reg" ] && [ "${2:-}" = "import" ] && cp "$3" "$STUB_REG"
+exit 0
+STUB
+chmod +x "$WORK/build/sapi4host.exe" "$WORK/bin/wine"
+
+printf 'Attention all personnel.\n' > "$WORK/text.txt"
+
+export MICROSLOP_BUILD="$WORK/build"
+export MICROSLOP_WINE="$WORK/bin/wine"
+export MICROSLOP_FFMPEG="${MICROSLOP_FFMPEG:-ffmpeg}"
+export DISPLAY=:99
+export WINEPREFIX="$WORK/prefix"
+export STUB_LOG="$WORK/host.log"
+export STUB_REG="$WORK/profile.reg"
+export STUB_SINE="$WORK/sine.wav"
+
+FAIL=0
+check() {
+    if [ "$2" = "$3" ]; then
+        echo "ok   - $1"
+    else
+        echo "FAIL - $1: expected [$2], got [$3]"
+        FAIL=1
+    fi
+}
+
+run_wrapper() {
+    : > "$STUB_LOG"
+    sh "$WRAP" "$WORK/out.wav" "$WORK/text.txt" >/dev/null
+}
+
+# The spoken text is the -t argument; the engine host writes to the wrapper's temp file.
+text_for() {
+    sed -n '1s/.*\[-t\] \[\(.*\)\] \[-o\].*/\1/p' "$STUB_LOG"
+}
+
+attr_count() {
+    grep -oE '\[-s\]|\[-p\]' "$STUB_LOG" | wc -l | tr -d ' '
+}
+
+# Neutral Flextalk sliders emit neither attributes nor tags.
+VESKSLOP_TTS_VOICE=keith-bell run_wrapper
+check "neutral flextalk text" "Attention all personnel." "$(text_for)"
+check "neutral flextalk has no attributes" "0" "$(attr_count)"
+
+# Adjustments ride as tags; attributes stay out even at non-neutral values.
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_VOX=0 \
+    VESKSLOP_TTS_SPEED=1.3 VESKSLOP_TTS_PITCH=3 run_wrapper
+check "flextalk rate tag" "\!R0.77 \!%1.19 Attention all personnel." "$(text_for)"
+check "flextalk has no attributes" "0" "$(attr_count)"
+
+# MSTTS has no vendor tags and keeps the attributes.
+VESKSLOP_TTS_VOICE=sam VESKSLOP_TTS_SPEED=1.3 VESKSLOP_TTS_PITCH=3 run_wrapper
+check "mstts text has no tags" "Attention all personnel." "$(text_for)"
+check "mstts keeps attributes" "2" "$(attr_count)"
+
+# The vox preset implies VOX prosody when VESKSLOP_TTS_VOX is unset.
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_PRESET=vox run_wrapper
+check "vox preset implies VOX parser" "1" "$(grep -c 'wH1' "$STUB_LOG")"
+
+# The preset writes the full audible profile to both hives.
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_PRESET=vox run_wrapper
+check "preset writes both hives" "2" "$(grep -c 'Speakers\\{11260610' "$STUB_REG")"
+check "preset pitch (both hives)" "2" "$(grep -c '"Pitch"=dword:00000003' "$STUB_REG")"
+check "preset rate (both hives)" "2" "$(grep -c '"Speaking Rate"=dword:00000011' "$STUB_REG")"
+check "preset gender and line mode" "4" "$(grep -cE '"Gender"=dword:00000002|"Line Mode"=dword:00000001' "$STUB_REG")"
+check "preset default speaker" "2" "$(grep -c '"Default Speaker"' "$STUB_REG")"
+
+# A plain Flextalk run keeps the defaults and writes no preset extras.
+VESKSLOP_TTS_VOICE=keith-bell run_wrapper
+check "plain run writes both hives" "2" "$(grep -c 'Speakers\\{11260610' "$STUB_REG")"
+check "plain run has no preset extras" "0" "$(grep -cE 'Gender|Line Mode|Default Speaker' "$STUB_REG")"
+
+# Word mode combines with a preset and skips the VOX parser, with tags per word.
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_PRESET=vox VESKSLOP_TTS_VOX=1 \
+    VESKSLOP_TTS_WORDS=1 VESKSLOP_TTS_WORD_GAP_MS=0 VESKSLOP_TTS_SPEED=1.25 run_wrapper
+check "word mode with preset synthesizes every word" "3" "$(grep -c '^ARGV:' "$STUB_LOG")"
+check "word mode skips the VOX parser" "0" "$(grep -c 'wH1' "$STUB_LOG")"
+check "word mode tags every word" "3" \
+    "$(sed -n 's/.*\[-t\] \[\(.*\)\] \[-o\].*/\1/p' "$STUB_LOG" | grep -c '^\\!R0.80 ')"
+check "word mode keeps the preset profile" "2" "$(grep -c '"Pitch"=dword:00000003' "$STUB_REG")"
+check "word mode emits no attributes" "0" "$(attr_count)"
+
+# The vox preset implies VOX when the variable is unset, but word mode still wins.
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_PRESET=vox VESKSLOP_TTS_WORDS=1 \
+    VESKSLOP_TTS_WORD_GAP_MS=0 run_wrapper
+check "implied VOX yields to word mode" "3" "$(grep -c '^ARGV:' "$STUB_LOG")"
+check "implied VOX skipped for words" "0" "$(grep -c 'wH1' "$STUB_LOG")"
+
+# Crunch keeps the output contract and changes the sound.
+VESKSLOP_TTS_VOICE=keith-bell run_wrapper
+cp "$WORK/out.wav" "$WORK/off.wav"
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_CRUNCH=telephone run_wrapper
+check "crunch keeps 48k s16le" "pcm_s16le,48000,1" \
+    "$("${MICROSLOP_FFMPEG:-ffmpeg}" -hide_banner -loglevel error -i "$WORK/out.wav" -f null - 2>&1 >/dev/null; ffprobe -v error -show_entries stream=codec_name,sample_rate,channels -of csv=p=0 "$WORK/out.wav")"
+check "crunch changes the audio" "1" "$([ "$(md5sum < "$WORK/off.wav")" != "$(md5sum < "$WORK/out.wav")" ] && echo 1 || echo 0)"
+
+# Streaming word mode writes a live WAV with a gap between each pair of words.
+VESKSLOP_TTS_VOICE=keith-bell VESKSLOP_TTS_WORDS=1 VESKSLOP_TTS_WORD_GAP_MS=200 \
+    VESKSLOP_TTS_STREAM=1 run_wrapper
+check "stream header" "RIFF" "$(head -c 4 "$WORK/out.wav")"
+check "stream is decodable" "0" \
+    "$("${MICROSLOP_FFMPEG:-ffmpeg}" -hide_banner -loglevel error -i "$WORK/out.wav" -f null - >/dev/null 2>&1; echo $?)"
+check "stream has a gap per word break" "2" \
+    "$("${MICROSLOP_FFMPEG:-ffmpeg}" -hide_banner -i "$WORK/out.wav" -af silencedetect=noise=-45dB:d=0.15 -f null - 2>&1 | grep -c silence_start)"
+
+# The Half-Life voices carry their profile preset.
+VESKSLOP_TTS_VOICE=vox VESKSLOP_TTS_VOX=1 run_wrapper
+check "vox voice writes the VOX profile (both hives)" "2" "$(grep -c '"Pitch"=dword:00000003' "$STUB_REG")"
+check "vox voice runs VOX prosody" "1" "$(grep -c 'wH1' "$STUB_LOG")"
+VESKSLOP_TTS_VOICE=hev run_wrapper
+check "hev voice writes the HEV profile (both hives)" "2" "$(grep -c '"Pitch"=dword:0000000f' "$STUB_REG")"
+check "hev voice has no prosody" "0" "$(grep -c 'wH1' "$STUB_LOG")"
+
+# Voice metadata follows the active preset.
+check "voices reflect hev" "1" \
+    "$(VESKSLOP_TTS_PRESET=hev sh "$WRAP" --voices | tr ',' '\n' | grep -c 'keith-bell|Keith Bell|male|en|expression=59+defaults=pitch:15:rate:24')"
+
+[ "$FAIL" = "0" ] && echo "wrapper tests passed" || { echo "wrapper tests failed"; exit 1; }

setup/veskslop-tts.sh

@@ -206,15 +206,17 @@ if [ -n "$SPEAKER_GUID" ]; then
     P_LOWER=40
     P_EXPR=""
 
-    # Half-Life presets for Keith Bell (the game's announcement voice).
+    # Half-Life presets for Keith Bell (the game's announcement voice). "vox"
-    # "vox" is the approximated Valve VOX profile published by NetTTS
+    # starts from the approximated Valve VOX profile published by NetTTS
-    # (scripts/winetricks/nettts_flextalk_vox_profile.reg); "hev" is a starting
+    # (scripts/winetricks/nettts_flextalk_vox_profile.reg), then refines pitch,
-    # point for the HEV suit voice, which has no published profile.
+    # rate, head size and lowering against the actual game word assets
+    # (see docs/TTS-DESIGN.md). "hev" is a starting point for the HEV suit
+    # voice, which has no published profile.
     case "$PRESET" in
         vox)
             if [ "$ENGVOICE" = "Keith Bell" ]; then
-                P_PITCH=3; P_RATE=17; P_VOLUME=70
+                P_PITCH=0; P_RATE=15; P_VOLUME=70
-                P_PROM=22; P_HEAD=52; P_LOWER=40
+                P_PROM=22; P_HEAD=34; P_LOWER=50
             fi
             ;;
         hev)

tools/vox_compare.py

@@ -0,0 +1,134 @@
+#!/usr/bin/env python3
+"""Compare synthesized words against reference WAV directories.
+
+Used to tune the Half-Life VOX preset against the game's word assets
+(`suchipi/half-life-vox-console`, `public/vox/*.wav` - Valve assets, keep them
+outside this repository).
+
+Usage:
+    vox_compare.py REFERENCE_DIR SYNTH_DIR [SYNTH_DIR ...]
+
+Directories must hold the same word file names (one WAV per word). Prints, per
+directory: median F0 (cepstrum), total audible duration, energy-weighted
+spectral centroid and the >2 kHz energy ratio. These are the metrics used to
+pick the VOX preset values in setup/veskslop-tts.sh.
+
+Requires numpy.
+"""
+import os
+import sys
+
+import numpy as np
+import wave
+
+
+def frames(path):
+    with wave.open(path) as w:
+        data = w.readframes(w.getnframes())
+        rate = w.getframerate()
+    samples = np.frombuffer(data, dtype="<i2").astype(float)
+    loud = np.nonzero(np.abs(samples) > 200)[0]
+    if len(loud) == 0:
+        return None, rate
+    return samples[loud[0]:loud[-1] + 1], rate
+
+
+def f0_cepstrum(seg, rate):
+    win = min(2048, (len(seg) // 2) * 2)
+    if win < 256:
+        return 0.0
+    values = []
+    for i in range(0, max(1, len(seg) - win), win // 2):
+        fr = seg[i:i + win]
+        if (fr ** 2).sum() < 1e6:
+            continue
+        fr = fr - fr.mean()
+        spectrum = np.abs(np.fft.rfft(fr * np.hanning(win))) + 1e-9
+        cepstrum = np.fft.irfft(np.log(spectrum))
+        lo, hi = int(rate / 400), int(rate / 60)
+        if hi <= lo:
+            continue
+        lag = lo + int(np.argmax(cepstrum[lo:hi]))
+        values.append(rate / lag)
+    values = sorted(v for v in values if 50 < v < 400)
+    return values[len(values) // 2] if values else 0.0
+
+
+def brightness(seg, rate):
+    win = min(2048, (len(seg) // 2) * 2)
+    cent, high, energy = [], [], []
+    for i in range(0, max(1, len(seg) - win), win // 2):
+        fr = seg[i:i + win]
+        if len(fr) < win:
+            break
+        e = (fr ** 2).sum() / win
+        if e < 1e5:
+            continue
+        fr = fr - fr.mean()
+        power = np.abs(np.fft.rfft(fr * np.hanning(win))) ** 2
+        freq = np.fft.rfftfreq(win, 1 / rate)
+        total = power.sum() + 1e-9
+        cent.append((power * freq).sum() / total)
+        high.append(power[(freq >= 2000) & (freq < 5000)].sum() / total)
+        energy.append(e)
+    if not cent:
+        return 0.0, 0.0
+    cent = np.array(cent)
+    high = np.array(high)
+    energy = np.array(energy)
+    keep = energy >= np.percentile(energy, 70)
+    return float(np.median(cent[keep])), float(np.median(high[keep]))
+
+
+def summarize(directory, words):
+    f0s, duration, cents, highs = [], 0.0, [], []
+    for word in words:
+        path = os.path.join(directory, word + ".wav")
+        if not os.path.exists(path):
+            continue
+        seg, rate = frames(path)
+        if seg is None or len(seg) == 0:
+            continue
+        duration += len(seg) / rate
+        value = f0_cepstrum(seg, rate)
+        if value > 0:
+            f0s.append(value)
+        c, h = brightness(seg, rate)
+        cents.append(c)
+        highs.append(h)
+    f0s.sort()
+    return {
+        "n": len(f0s),
+        "f0": f0s[len(f0s) // 2] if f0s else 0.0,
+        "dur": duration,
+        "cent": float(np.median(cents)) if cents else 0.0,
+        "high": float(np.median(highs)) if highs else 0.0,
+    }
+
+
+def main():
+    if len(sys.argv) < 3:
+        print(__doc__)
+        return 2
+    reference = sys.argv[1]
+    candidates = sorted(
+        name[:-4] for name in os.listdir(reference)
+        if name.endswith(".wav") and os.path.isfile(os.path.join(reference, name))
+    )
+    # Keep only words present in every directory so the summaries compare.
+    words = [
+        word for word in candidates
+        if all(os.path.exists(os.path.join(d, word + ".wav")) for d in sys.argv[1:])
+    ]
+    for directory in sys.argv[1:]:
+        s = summarize(directory, words)
+        print(
+            "%-28s words=%3d f0=%6.1fHz dur=%6.2fs cent=%5.0fHz high2k=%.4f"
+            % (os.path.basename(directory.rstrip("/")), s["n"], s["f0"], s["dur"],
+               s["cent"], s["high"])
+        )
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())