Generally, a given speech sample is played over the speech path, where it presumably undergoes various types of impairments during encoding, packetization, transmission, and decoding.

通常，一个给定的语音样本通过语音信道，在编码，分组，传送和解码过程中会遭到不同类型的损伤。

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President Barack Obama warned Americans during a White House speech to follow emergency instructions if they are in the storm's path.

BBC: Hurricane Sandy: Thousands hit by flight cancellations

Obama gave a major speech Thursday in which he said al-Qaida is "on the path to defeat" and he's signaling that he's reluctant to commit troops overseas to conflicts like Syria or other countries struggling with instability in the uncertain aftermath of the Arab Spring.

NPR: GOP Continues To Slam New Obama War Approach