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Let me introduce you to what I call the PCM boundary. PCM (Pulse-Code Modulation) is the raw, uncompressed digital audio format that eventually gets sent to your speakers. It’s the terminal endpoint of every audio pipeline, regardless of how aggressively encrypted the source was.，详情可参考旺商聊官方下载
Manjit Sangha, who worked seven days a week before her illness, returned home on a Sunday afternoon in July last year, feeling unwell.
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