Mic khong chi la mic. Hai mic chuan vao cung mot PC voi cung mot thay doi giong hoat dong co the cung cap cac ket qua hoàn toan khac nhau - mot nhan ban than kinh nghe hieu va tu nhien, mot nghe nhu mot robot voi co thu. Su khac biet khong phai la phan mem: do la chat luong va loai tin hieu di vao.
Tu Duoc vs Dong: Cai Nao Hoat Dong Tot Hon voi Thay Doi Giong
Day la cau hoi ma nhieu nguoi quen dat.
Tu duoc bat giu mot pho rong - kenh nhieu ban phim, quat, hang xom, tho cua ban tran. No lat khat trong mot phong dien buoc duoc am thanh. Trong mot phong binh thuong, no bat giu tat ca dieu do ben canh giong ban va cung cap mot tin hieu day cac artefact ma mo hinh than kinh phai xu ly. Nhan ban tro nen khong on dinh.
Dong cac mic co tu choi kenh nhieu phuong ben cat nhieu hon (cardioid chat) chap nhat, chui bat giu nhung gi o tren mat truoc chung, va tin hieu duoc cung cap le xu ly sach hon. Cac mo hinh giong than kinh duoc dao tao tren noi dung sach - sach hon tin hieu, tot hon dau ra.
Ket luan thuc tien: cho thay doi giong trong mot truong mo khong duoc xa ly, dong thua hang nhat. Tu duoc chi thang neu ban co mot be hoac cac tam xung am thanh phu tro phan xa tuong.
Pham vi $40-$80: Diem Vao Hanh Dong
Fifine K678 (~$45)
Chuan va choi USB, cardioid dong, khong can driver. Dau vao VoxBooster sach du de cac hieu ung DSP hoat dong tot. Nhan ban than kinh se hoat dong, nhung chat luong tin hieu trung binh - cac thang man manh co xu huong tho het nhieu hon.
Doi voi bat ky ai vua bat dau muon kiem tra thay doi giong ma khong chi tieu nhieu, day la lua chon tru thuc nhat trong tham vi nay. Khong mua mot tu duoc USB gia re voi chu y nó se tot hon - no se khong co.
Diem yeu: co phong sau han che. Mot giong narator sau ac nghe manh. Neu do la cu thich ban se su dung nhieu nhat, da xem xet di len.
Pham vi $100-$150: Noi Ngot
Shure MV7 (~$130)
Dong, USB + XLR, cardioid. Mic nay la mot diem chien chung quan trong. Tu choi phuong ben tao, tin hieu phu hop, va preamplifier USB noi bo du tot de ban khong can mot giao dien trong pham vi nay.
Trong VoxBooster, MV7 cung cap nhan ban than kinh voi ít artefact phong nen hon va giu lai intonation tot hon - do la nhung gi lam cho nhan ban nghe song. Day la mic ma hau het cac streamer cap trung su dung.
Neu ban co mot giao dien am thanh va di XLR, tren ban tu choi tu preamplifier giao dien cai thiện ket qua tiem them.
Pham vi $300+: Khi Ban Canh
Shure SM7B (~$400)
Tieu chuan cong nghiep cho podcast va phat song. Dong, XLR, tu choi nhieu vo ly, phan ung tan so bang voi mot diem co tu dua giong nhe. Can thiep mot giao dien voi trai cao (toi thieu +60dB, theo ly thuyet voi mot biet suc da tang dao) vi dau ra la tu nhien thap.
Voi SM7B va mot giao dien tot, nhan ban than kinh VoxBooster chay du tot nhat co the. Mo hinh nhan mot tin hieu sach, khong co nhieu phong nen, voi mot bieu mau giong dung. Ket qua: mot nhan ban ma thay can da lua nhat nhung nguoi biet no la mot nhan ban.
Chi phi thuc te: SM7B ($400) + giao dien co ban nhu Focusrite Scarlett Solo ($120) + biet suc da tang dao (~$100) = cai dat tong the ~$620. Co nghia la cho nguoi song tu tao noi dung. Doi voi su dung tren thien, no la thua du.
Giao Dien Am Thanh hoac USB Truc Tiep?
USB truc tiep tien loi va hoat dong. Giao dien XLR cung cap dieu khien trai analog thuc te, preamplifier chat luong va do tre theo doi thap hon. Cho thay doi giong, su khac biet o tin hieu den xu ly:
- USB truc tiep: tin hieu duoc dieu khien boi firmware mic
- Giao dien XLR: ban dieu khien trai, co the dieu chinh de mot tin hieu nong ma khong cat
Neu ban da co mot giao dien, di XLR. Neu ban khong va khong muon dau tu bay gio, USB dong hoat dong tot.
Cau Hinh Trai Cho Thay Doi Giong
Bat chu mic, trai quan trong nhu phan cung. Quy tac thuc te trong VoxBooster:
- Muc dau vao tren dong ho: -12 den -6 dBFS khi noi binh thuong
- Tranh bao hoa (tin hieu danh dau tren cung) - nhan ban anh huong kho voi cat
- Tranh muc thap (duoi -24 dBFS) - mo hinh dien vao nhieu
Dieu chinh trai Windows hoac trai giao dien truoc khi kich hoat bat ky bien doi nao. VoxBooster co mot dong ho dau vao tren man hinh chinh - su dung no.
Tóm Tat Truc Tiep
| Ngan Sach | Mic | Giao Dien | Ket Qua Thay Doi Giong |
|---|---|---|---|
| ~$45 | Fifine K678 | USB truc tiep | Chuc nang, hieu ung tot, nhan ban OK |
| ~$130 | Shure MV7 | USB truc tiep | Tot cho nhan ban, lat cho hieu ung |
| ~$600+ | SM7B | Scarlett Solo | Lat khap noi |
Dong cho phong khong duoc sa ly. Tu duoc chi neu ban co sa ly am thanh. Trai hieu chinh truoc bat ky cu thich nao. Theo tuy thu tu do.