Bang sang che MP3 het han nam 2017 - dieu gi thay doi voi file am thanh cua ban
Fraunhofer va Technicolor dong chuong trinh cap phep MP3 ngay 23 thang 4 nam 2017 sau khi cac bang sang che cot loi het han. MP3 khong bien mat - moi dien thoai va trinh duyet van phat duoc - nhung bo ma hoa khong con no phi ban quyen cho dinh dang co ban. Thay doi quy trinh: ban co the chuyen doi va chia se MP3 tu do; chon AAC hoac FLAC khi chat luong hoac tuong thich streaming quan trong hon.
Last reviewed: 2026-07-20
Chuyen gi da xay ra
Ngay 23 thang 4 nam 2017, chuong trinh cap phep MP3 cua Technicolor cho mot so bang sang che va phan mem lien quan MP3 cua Technicolor va Fraunhofer IIS da ket thuc, theo trang MP3 chinh thuc cua Fraunhofer va blog am thanh cua ho. Chuong trinh dung vi bang sang che cuoi trong goi do da het han - khong phai vi MP3 ngung hoat dong. Bao cao doc lap cua Billboard va Marco.org ghi nhan bang sang che My cuoi cung lien quan (6,009,399, do Technicolor nam) het han ngay 16 thang 4 nam 2017, mot tuan truoc thong bao dong cap phep.
| Chi tiet | Gia tri |
|---|---|
| Chuong trinh cap phep ket thuc | 2017-04-23 (thong bao Fraunhofer / Technicolor) |
| Bang sang che My cot loi cuoi het han | 2017-04-16 (U.S. Patent 6,009,399) |
| Dieu gi ket thuc | Chuong trinh phi ban quyen cho encoder/decoder MP3 trong goi |
| Dieu gi KHONG ket thuc | Ho tro phat MP3 tren dien thoai, trinh duyet va may nghe nhac |
| Huong tiep theo cua Fraunhofer | AAC va MPEG-H cho streaming va phat song |
Bai tren blog Fraunhofer nhan manh rang mot so bang sang che cu the cho trien khai nam ngoai goi cot loi van co the con hieu luc nam 2017, nen "mien phep moi noi cho moi tinh nang" khong tu dong ngay dau. Voi chuyen doi va phat lai hang ngay, hieu ung thuc te giong nhau: distro Linux va cong cu open-source co the ship ho tro MP3 ma khong tra phi cho Fraunhofer.
Tai sao dieu nay anh huong file hang ngay
Truoc 2017, dua encoder MP3 vao phan mem thuong can phi cap phep bang sang che. Do la ly do mot so he dieu hanh ship giai ma MP3 nhung khong ma hoa, va cac cong cu "chuyen sang MP3" doi khi mang ghi chu giay phep. Sau khi bang sang che cot loi het han, MP3 lai tro thanh dinh dang mau so chung an toan: clip podcast, nhac chuong trich tu video, hoac memo thoai xuat de gui email se mo tren hau het thiet bi. Doi trao khong doi: MP3 la lossy va dat toi da khoang 320 kbps, nen luu master bang FLAC hay giao file theo workflow Apple van co the thich AAC hon.
Can lam gi voi file cua ban ngay bay gio
Khi ban chon hoac chuyen doi dinh dang am thanh hom nay:
- Dung MP3 khi can tuong thich toi da. Nhac chuong, clip ngan, va tep dinh kem phai mo tren am thanh o to cu va PC van phong van di tot duoi dang MP3. Trich am thanh tu video bang video converter, roi xuat MP3 neu dich den chua ro.
- Chuyen doi giua cac dinh dang lossy trong trinh duyet. audio converter xu ly MP3 cung WAV, AAC va cac container pho bien khac ma khong can cai encoder desktop.
- Cat ngan truoc khi chia se. Bo khoang lang hoac phan mo dau dai bang audio trimmer guide, roi luu MP3 ngan hon de giam kich thuoc tep dinh kem.
- Giu master o noi khac. MP3 van la dinh dang giao file, khong phai dinh dang luu tru. Luu ban goc bang FLAC hoac WAV khi ban co the sua lai sau.