Note the "polyphase" option on the end of the SoX command. This is important to preserve the pitch of the file while altering its sample rate.

注意SoX命令结尾的“polyphase”选项，在改变文件采样率时该选项对于保存文件的基调非常重要。

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The feof command detects whether you have already read to the end of the file and returns True or False.

feof命令将检测您是否已经读到文件的末尾并返回True或False。

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Adding -z tempfile.txt to the end of this command will redirect the output to the file specified.

db 2 - tf createDatabaseDb 2 . ddl(如果将- z tempfile . txt添加到此命令的末尾，则会使输出重定向到指定的文件)。

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