It does. M4A是存放AAC或ALACA音频的MP4集装箱,iTunes和苹果音乐文件默认值。. That is precisely what decides whether a cut can be placed arbitrarily or has to land on a structural boundary.
修剪时有什么具体关于 M4A 的具体信息吗?
+
Yes — a.m4a 可以是持有ACAC或ALACA, 如此失失和无损的文档共用一个扩展号, 必须通过检查分开告知. It explains most of the "the cut is a fraction of a second off" surprises.