Audacity digital audio editor and recording

Audacity digital audio editor and recording
Trên Windows có thể record internal sound vd như youtube video để lấy nhạc.
Chi tiết sẽ update.
Thi thoảng hỏng driver thì ko được.
Ubuntu cũng có nhưng mấy bản mới thì mặc định ko có sẵn.

Audacity có nhiều tính năng edit audio như cắt, ghép, tăng âm lượng cho 1 đoạn này, hạ âm cho 1 đoạn khác ...

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