feat: openai realtime merge

app/components/voice-print/index.ts

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+export * from "./voice-print";

app/components/voice-print/voice-print.module.scss

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+.voice-print {
+  width: 100%;
+  height: 60px;
+  margin: 20px 0;
+
+  canvas {
+    width: 100%;
+    height: 100%;
+    filter: brightness(1.2); // 增加整体亮度
+  }
+}

app/components/voice-print/voice-print.tsx

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+import { useEffect, useRef, useCallback } from "react";
+import styles from "./voice-print.module.scss";
+
+interface VoicePrintProps {
+  frequencies?: Uint8Array;
+  isActive?: boolean;
+}
+
+export function VoicePrint({ frequencies, isActive }: VoicePrintProps) {
+  // Canvas引用，用于获取绘图上下文
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+  // 存储历史频率数据，用于平滑处理
+  const historyRef = useRef<number[][]>([]);
+  // 控制保留的历史数据帧数，影响平滑度
+  const historyLengthRef = useRef(10);
+  // 存储动画帧ID，用于清理
+  const animationFrameRef = useRef<number>();
+
+  /**
+   * 更新频率历史数据
+   * 使用FIFO队列维护固定长度的历史记录
+   */
+  const updateHistory = useCallback((freqArray: number[]) => {
+    historyRef.current.push(freqArray);
+    if (historyRef.current.length > historyLengthRef.current) {
+      historyRef.current.shift();
+    }
+  }, []);
+
+  useEffect(() => {
+    const canvas = canvasRef.current;
+    if (!canvas) return;
+
+    const ctx = canvas.getContext("2d");
+    if (!ctx) return;
+
+    /**
+     * 处理高DPI屏幕显示
+     * 根据设备像素比例调整canvas实际渲染分辨率
+     */
+    const dpr = window.devicePixelRatio || 1;
+    canvas.width = canvas.offsetWidth * dpr;
+    canvas.height = canvas.offsetHeight * dpr;
+    ctx.scale(dpr, dpr);
+
+    /**
+     * 主要绘制函数
+     * 使用requestAnimationFrame实现平滑动画
+     * 包含以下步骤：
+     * 1. 清空画布
+     * 2. 更新历史数据
+     * 3. 计算波形点
+     * 4. 绘制上下对称的声纹
+     */
+    const draw = () => {
+      // 清空画布
+      ctx.clearRect(0, 0, canvas.width, canvas.height);
+
+      if (!frequencies || !isActive) {
+        historyRef.current = [];
+        return;
+      }
+
+      const freqArray = Array.from(frequencies);
+      updateHistory(freqArray);
+
+      // 绘制声纹
+      const points: [number, number][] = [];
+      const centerY = canvas.height / 2;
+      const width = canvas.width;
+      const sliceWidth = width / (frequencies.length - 1);
+
+      // 绘制主波形
+      ctx.beginPath();
+      ctx.moveTo(0, centerY);
+
+      /**
+       * 声纹绘制算法：
+       * 1. 使用历史数据平均值实现平滑过渡
+       * 2. 通过正弦函数添加自然波动
+       * 3. 使用贝塞尔曲线连接点，使曲线更平滑
+       * 4. 绘制对称部分形成完整声纹
+       */
+      for (let i = 0; i < frequencies.length; i++) {
+        const x = i * sliceWidth;
+        let avgFrequency = frequencies[i];
+
+        /**
+         * 波形平滑处理：
+         * 1. 收集历史数据中对应位置的频率值
+         * 2. 计算当前值与历史值的加权平均
+         * 3. 根据平均值计算实际显示高度
+         */
+        if (historyRef.current.length > 0) {
+          const historicalValues = historyRef.current.map((h) => h[i] || 0);
+          avgFrequency =
+            (avgFrequency + historicalValues.reduce((a, b) => a + b, 0)) /
+            (historyRef.current.length + 1);
+        }
+
+        /**
+         * 波形变换：
+         * 1. 归一化频率值到0-1范围
+         * 2. 添加时间相关的正弦变换
+         * 3. 使用贝塞尔曲线平滑连接点
+         */
+        const normalized = avgFrequency / 255.0;
+        const height = normalized * (canvas.height / 2);
+        const y = centerY + height * Math.sin(i * 0.2 + Date.now() * 0.002);
+
+        points.push([x, y]);
+
+        if (i === 0) {
+          ctx.moveTo(x, y);
+        } else {
+          // 使用贝塞尔曲线使波形更平滑
+          const prevPoint = points[i - 1];
+          const midX = (prevPoint[0] + x) / 2;
+          ctx.quadraticCurveTo(
+            prevPoint[0],
+            prevPoint[1],
+            midX,
+            (prevPoint[1] + y) / 2,
+          );
+        }
+      }
+
+      // 绘制对称的下半部分
+      for (let i = points.length - 1; i >= 0; i--) {
+        const [x, y] = points[i];
+        const symmetricY = centerY - (y - centerY);
+        if (i === points.length - 1) {
+          ctx.lineTo(x, symmetricY);
+        } else {
+          const nextPoint = points[i + 1];
+          const midX = (nextPoint[0] + x) / 2;
+          ctx.quadraticCurveTo(
+            nextPoint[0],
+            centerY - (nextPoint[1] - centerY),
+            midX,
+            centerY - ((nextPoint[1] + y) / 2 - centerY),
+          );
+        }
+      }
+
+      ctx.closePath();
+
+      /**
+       * 渐变效果：
+       * 从左到右应用三色渐变，带透明度
+       * 使用蓝色系配色提升视觉效果
+       */
+      const gradient = ctx.createLinearGradient(0, 0, canvas.width, 0);
+      gradient.addColorStop(0, "rgba(100, 180, 255, 0.95)");
+      gradient.addColorStop(0.5, "rgba(140, 200, 255, 0.9)");
+      gradient.addColorStop(1, "rgba(180, 220, 255, 0.95)");
+
+      ctx.fillStyle = gradient;
+      ctx.fill();
+
+      animationFrameRef.current = requestAnimationFrame(draw);
+    };
+
+    // 启动动画循环
+    draw();
+
+    // 清理函数：在组件卸载时取消动画
+    return () => {
+      if (animationFrameRef.current) {
+        cancelAnimationFrame(animationFrameRef.current);
+      }
+    };
+  }, [frequencies, isActive, updateHistory]);
+
+  return (
+    <div className={styles["voice-print"]}>
+      <canvas ref={canvasRef} />
+    </div>
+  );
+}