Function base64ToInt16Array

src/lib/utils.ts:35–40

(base64: string)

// base64 转 Int16Array
export function base64ToInt16Array(base64: string): Int16Array {
    const binary = atob(base64);
    const bytes = new Uint8Array(binary.length);
    binary.split('').forEach((char, i) => bytes[i] = char.charCodeAt(0));
    return new Int16Array(bytes.buffer);
}

// 将 Int16Array 转换为 WAV 格式的 Buffer
export function int16ArrayToWavBuffer(int16Array: Int16Array, sampleRate = 16000): Buffer {