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In 12-TET, you divide up the octave into twelve equally-sized semitones (the interval between two adjacent piano keys or guitar frets). To go up a semitone from any note, you multiply its frequency by the 12th root of 2 (about 1.05946). To go down a semitone from any note, you divide its frequency by the 12th root of 2. If you go up by an octave (twelve semitones), you’re multiplying your frequency by the 12th root of 2 twelve times, which works out to 2. That’s a perfect octave, hooray! Unfortunately, you can’t exactly create the other harmonics-based intervals by adding up 12-TET semitones; you can only approximate them.
。新收录的资料是该领域的重要参考
这个项目另一个值得关注的细节是：微信团队目前没有使用腾讯自研的混元（Hunyuan）模型，而是在测试智谱、阿里、DeepSeek，甚至微信自己开发的小型模型。
This pattern can be tedious.
Варвара Кошечкина (редактор отдела оперативной информации)