From 6a43111d5a18e369e5f431ab904166357010a40e Mon Sep 17 00:00:00 2001
From: lou <lou@localhost>
Date: Sat, 19 Sep 2026 19:56:58 +0800
Subject: [PATCH] =?UTF-8?q?EQ=20=E9=A2=84=E8=AE=BE=2010=20=E4=B8=AA(?=
 =?UTF-8?q?=E5=B9=B3=E7=9B=B4/=E6=B5=81=E8=A1=8C/=E6=91=87=E6=BB=9A/?=
 =?UTF-8?q?=E7=88=B5=E5=A3=AB/=E5=8F=A4=E5=85=B8/=E4=BA=BA=E5=A3=B0/?=
 =?UTF-8?q?=E4=BD=8E=E9=9F=B3/=E9=AB=98=E9=9F=B3/=E6=B7=B1=E5=A4=9C/?=
 =?UTF-8?q?=E6=9F=94=E5=8C=96):=20=E7=94=A8=E6=8E=A7=E5=88=B6=E7=82=B9?=
 =?UTF-8?q?=E5=9C=A8=E5=AF=B9=E6=95=B0=E9=A2=91=E7=8E=87=E8=BD=B4=E6=8F=92?=
 =?UTF-8?q?=E5=80=BC=E6=88=90=2032=20=E6=AE=B5;=20CDP=20=E7=82=B9=E5=87=BB?=
 =?UTF-8?q?=E5=AE=9E=E6=B5=8B=E4=BD=8E=E9=9F=B3[7,7,7,7,6.5,6]+=E5=90=8E?=
 =?UTF-8?q?=E6=AE=B5-1=E3=80=81=E6=9F=94=E5=8C=96=E5=89=8D=E6=AE=B5-2?=
 =?UTF-8?q?=E5=90=8E=E6=AE=B5-4.5=20=E5=9D=87=E5=86=99=E5=85=A5=20DSP?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 web/index.html       | 61 ++++++++++++++++++++++++++++++++++++++++++++
 测试/cdp_预设验证.py | 53 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 114 insertions(+)
 create mode 100644 测试/cdp_预设验证.py

diff --git a/web/index.html b/web/index.html
index a19fc2e..531774f 100644
--- a/web/index.html
+++ b/web/index.html
@@ -53,6 +53,11 @@ input[type=range]::-moz-range-thumb{width:14px;height:14px;border:none;border-ra
               transform:translateX(-50%);transition:left .12s linear}
 .viz .num{width:84px;flex:none;text-align:right;color:var(--fg);font-variant-numeric:tabular-nums}
 
+/* ---- EQ 预设 ---- */
+.presets{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
+.presets button{padding:4px 11px;font-size:11px}
+.presets button.on{border-color:var(--ok);color:var(--ok);background:#12211a}
+
 /* ---- EQ ---- */
 .eq{display:flex;align-items:flex-end;gap:3px;height:190px;padding-top:6px}
 .band{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%}
@@ -121,6 +126,7 @@ button:hover{border-color:var(--ok);color:var(--ok)}
 
 <div class="card">
   <h2>32 段 EQ（1/3 倍频程 · ±15 dB）</h2>
+  <div class="presets" id="presets"></div>
   <div class="eq" id="eq"></div>
   <div class="btns">
     <button id="flat">全部归零</button>
@@ -219,6 +225,60 @@ function buildEq(freqs) {
   });
 }
 
+/* ---------- EQ 预设 ---------- */
+/* 控制点 = [频率 Hz, 增益 dB], 在对数频率轴上插值成 32 段 —— 比写死 32 个数好维护。 */
+const PRESETS = {
+  "平直": [],
+  "流行": [[60, 2.5], [250, -1], [1000, 1], [4000, 2.5], [12000, 3]],
+  "摇滚": [[60, 5], [250, -2], [1000, -1], [3500, 3], [12000, 5]],
+  "爵士": [[60, 4], [200, 1.5], [800, -1], [3000, 1.5], [12000, 3]],
+  "古典": [[60, 3], [400, -1], [2000, 0.5], [8000, 2], [16000, 3]],
+  "人声": [[100, -3], [500, -1], [2000, 4], [6000, 2], [12000, 1]],
+  "低音": [[40, 7], [120, 5], [300, 2], [1000, 0], [4000, -1]],
+  "高音": [[200, -1], [2000, 1], [6000, 4], [14000, 6]],
+  "深夜": [[60, 4], [200, 3], [1000, 0], [4000, 1], [12000, 3]],   // 小音量等响度补偿
+  "柔化": [[3000, -2], [6000, -4], [12000, -5], [16000, -3]],      // 削刺耳高频
+};
+function curveTo(pts, freqs) {
+  if (!pts.length) return freqs.map(() => 0);
+  const first = pts[0], last = pts[pts.length - 1];
+  return freqs.map((f) => {
+    if (f <= first[0]) return first[1];
+    if (f >= last[0]) return last[1];
+    for (let i = 0; i < pts.length - 1; i++) {
+      const a = pts[i], b = pts[i + 1];
+      if (f >= a[0] && f <= b[0]) {
+        const t = Math.log(f / a[0]) / Math.log(b[0] / a[0]);
+        return a[1] + (b[1] - a[1]) * t;
+      }
+    }
+    return 0;
+  });
+}
+function applyPreset(name) {
+  const freqs = state ? state.freqs : [];
+  if (!freqs.length) return;
+  const vals = curveTo(PRESETS[name], freqs).map((g) => Math.round(g * 2) / 2);   // 对齐 0.5 步进
+  gains = vals.slice();
+  eqBox.querySelectorAll("input").forEach((inp, i) => {
+    inp.value = vals[i];
+    const v = inp.previousElementSibling;
+    v.textContent = vals[i] === 0 ? "" : (vals[i] > 0 ? "+" : "") + vals[i].toFixed(1);
+  });
+  commitEq();
+  say("EQ 预设: " + name);
+}
+function buildPresets() {
+  const box = el("presets");
+  box.innerHTML = "";
+  Object.keys(PRESETS).forEach((name) => {
+    const b = document.createElement("button");
+    b.textContent = name;
+    b.addEventListener("click", () => applyPreset(name));
+    box.appendChild(b);
+  });
+}
+
 /* ---------- 电平表 ---------- */
 const METERS = [
   ["inL", "in_rms", 0], ["outL", "out_rms", 0],
@@ -280,6 +340,7 @@ es.onerror = () => say("面板与 DSP 失联, 重连中");
 
 function applyState(d) {
   if (state === null) {
+    buildPresets();
     buildEq(d.freqs);
     gains = d.gains.slice();
     eqBox.querySelectorAll("input").forEach((inp) => {
diff --git a/测试/cdp_预设验证.py b/测试/cdp_预设验证.py
new file mode 100644
index 0000000..85ed581
--- /dev/null
+++ b/测试/cdp_预设验证.py
@@ -0,0 +1,53 @@
+"""点 EQ 预设, 验证前端与 DSP 都真的变了。"""
+from __future__ import annotations
+
+import json
+import subprocess
+import time
+import urllib.request
+
+import websocket
+
+API = "http://127.0.0.1:8789"
+page = subprocess.Popen([
+    "google-chrome", "--headless=new", "--disable-gpu", "--remote-debugging-port=9333",
+    "--remote-allow-origins=*", "--user-data-dir=/tmp/cxchrome4", API],
+    stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+time.sleep(4)
+
+tabs = json.load(urllib.request.urlopen("http://127.0.0.1:9333/json/list", timeout=15))
+ws = websocket.create_connection([t for t in tabs if t.get("type") == "page"][0]["webSocketDebuggerUrl"], timeout=25)
+_mid = [0]
+
+
+def js(expr: str) -> object:
+    _mid[0] += 1
+    ws.send(json.dumps({"id": _mid[0], "method": "Runtime.evaluate",
+                        "params": {"expression": expr, "returnByValue": True}}))
+    while True:
+        msg = json.loads(ws.recv())
+        if msg.get("id") == _mid[0]:
+            return ((msg.get("result") or {}).get("result") or {}).get("value")
+
+
+print("预设按钮:", js("Array.from(document.querySelectorAll('#presets button')).map(b => b.textContent).join(' / ')"))
+
+for name in ("低音", "柔化"):
+    js("Array.from(document.querySelectorAll('#presets button')).find(b => b.textContent === '%s').click()" % name)
+    time.sleep(0.7)
+    vals = js("Array.from(document.querySelectorAll('#eq input')).map(i => +i.value)")
+    srv = json.load(urllib.request.urlopen(API + "/api/state", timeout=15))
+    print()
+    print("点[%s] 前端前6段 = %s" % (name, [round(v, 1) for v in vals[:6]]))
+    print("        前端后6段 = %s" % [round(v, 1) for v in vals[-6:]])
+    print("        服务端前6 = %s  后6 = %s" % (
+        [round(g, 1) for g in srv["gains"][:6]], [round(g, 1) for g in srv["gains"][-6:]]))
+    print("        状态栏 =", js("document.getElementById('status').textContent"))
+
+# 收尾: 回到平直
+js("Array.from(document.querySelectorAll('#presets button')).find(b => b.textContent === '平直').click()")
+time.sleep(0.5)
+print()
+print("已复位到平直:", js("Array.from(document.querySelectorAll('#eq input')).every(i => +i.value === 0)"))
+ws.close()
+page.terminate()