修块间台阶残留: 归一化增益改块内逐样本线性插值(zipper 噪声); 谐波(相对基频) +0/+6dB 由 -12.1/-15.9 降到 -90.1/-70.6 dB; 调试用的测试脚本收进 测试/, 清理全部调试残留

测试/test_rms.py

@@ -0,0 +1,73 @@
+"""端到端: 总音量放大对响度与峰值的影响(播素材实测, 数据取自 EQ DSP 的状态区)。"""
+from __future__ import annotations
+
+import json
+import math
+import subprocess
+import time
+import urllib.request
+import wave
+
+import numpy as np
+
+API = "http://127.0.0.1:8789"
+WAV = "/tmp/e2e_white.wav"
+RATE = 96000
+
+
+def make_white() -> None:
+    rng = np.random.default_rng(7)
+    secs = 4.0
+    x = rng.normal(0.0, 1.0, int(RATE * secs))
+    x = x / (np.max(np.abs(x)) + 1e-12) * (10 ** (-12 / 20))   # 峰值 -12 dBFS
+    data = (x * 32767).astype("<i2")
+    with wave.open(WAV, "wb") as fh:
+        fh.setnchannels(2)
+        fh.setsampwidth(2)
+        fh.setframerate(RATE)
+        fh.writeframes(np.repeat(data, 2).tobytes())
+
+
+def post(path: str, payload: dict[str, object]) -> None:
+    req = urllib.request.Request(API + path, data=json.dumps(payload).encode("utf-8"),
+                                 headers={"Content-Type": "application/json"})
+    urllib.request.urlopen(req, timeout=10).read()
+
+
+def state() -> dict[str, object]:
+    raw = urllib.request.urlopen(API + "/api/state", timeout=10).read()
+    return json.loads(raw)
+
+
+def play_and_read() -> dict[str, float]:
+    proc = subprocess.Popen(["pw-play", "--target", "collaplex_vsink", WAV],
+                            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+    time.sleep(1.6)
+    levels = state().get("levels")
+    time.sleep(0.2)
+    proc.terminate()
+    proc.wait(timeout=5)
+    if not isinstance(levels, dict):
+        return {"in_rms": -120.0, "out_rms": -120.0, "out_peak": -120.0}
+    return {str(k): float(v) for k, v in levels.items()}
+
+
+def main() -> None:
+    make_white()
+    base: list[float] = []
+    print("素材: 峰值 -12 dBFS 白噪")
+    for db in (0.0, 6.0, 12.0):
+        post("/api/volume", {"db": db})
+        time.sleep(0.5)
+        lv = play_and_read()
+        out_rms = lv.get("out_rms", -120.0)
+        out_peak = lv.get("out_peak", -120.0)
+        base.append(out_rms)
+        delta = out_rms - base[0]
+        print("总音量 %+5.1f dB -> 出 RMS %6.2f dBFS (Δ%+5.2f) | 出峰值 %6.2f dBFS" % (
+            db, out_rms, delta, out_peak))
+    post("/api/volume", {"db": 6.0})
+
+
+if __name__ == "__main__":
+    main()