feat(audio): 使用 Windowed Sinc 高质量重采样器替代线性插值
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统一音频输出采样率为 44100Hz,使用 go-audio-resampler 库实现 Windowed Sinc + Polyphase FIR 算法(VeryHigh 28-bit 精度), 替代原有的线性插值透传方案。 主要变更: - 新增 sincResampler:三阶段 Read 循环(填充→处理→Flush) - 双缓冲区架构避免输出样本丢失,复用内存减少 GC 压力 - WAV/MP3/BGM 播放管线全部接入 Sinc 重采样器 - 移除旧的 linearResampler 和透传模式 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -13,8 +13,8 @@ var (
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)
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const (
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UniversalSampleRate = 44100 // 通用采样率(高质量音频)
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DefaultChannelCount = 2 // 声道数(立体声)
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UniversalSampleRate = 44100
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DefaultChannelCount = 2
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)
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func initContext() (*oto.Context, error) {
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