Ku hay tabkan furan — waxaad u noqon doontaa la soo celiyey in aad qoraalka.
Field recordersStudio sessions24-bit / 96 kHzDictaphones
WAV waa dhibaato weyn, ma aha dhibaato tayada
WAV waa PCM uncompressed, iyo in ay tahay mid ka mid ah wax in ay qorsheeyaan in ay ku dhow: CD-quality stereo socdaa oo ku saabsan 10 MB daqiiqada, sidaas daraaddeed 100 MB cap aan la aqoonsan yahay waa ku habboon yahay in ka badan 9-10 daqiiqo oo stereo (ku saabsan 19 mono) — waxaad ku dhici doontaa xadka size dheer ka hor 30-daqiiqo mid. A xisaab bilaash ah kor u qaadi kartaa cap in 500 MB, lacagta la siiyay tirada 5 GB.
WAV waa sidoo kale mid ka mid ah qaabka halkaas oo la beddelo ka hor soo dejinta dhab ahaantii caawiya. qaabka maqli 16 kHz mono gudaha, sidaas darteed amar sida "ffmpeg -i in.wav -ar 16000 -ac 1 out.flac" yareyso file ku saabsan toban jeer inta ay joogaan lossless ujeedada hadalka - qoraalka ka soo baxa isku mid ah.
Ka dib markii studio iyo goobta diiwaangelinta in qoraalka
Wax kasta oo WAV workflow soo saaro decodes halkan: 16- ama 24-bit, 44.1 ilaa 192 kHz, wararka WAV ka diiwaangashan goobta, iyo ADPCM ama µ-qaab sharci ah oo hore dictaphones iyo nidaamka telefoonka qoray. High resolution ma ku darto saxnaanta - audio waa downmixed iyo resampled gudaha - laakiin ma dhibin midkoodna.
Haddii WAV ka mid ah edit video, abuuro SRT ama VTT halkan iyo ku dhaqanka editor ee offset marka aad soo gasho.
Su'aalaha badanaa la isweydiiyo
Ma WAV aan la isku dhejin doonaa oo si sax ah u akhrin doona sida koontada la isku dhejin doono?
Ma aha miisaanka. saxnaanta waxaa go'aamiyay diiwaanka oo keliya - mic fogaan, qaylo, crosstalk - muddo ka hor inta codec muhiimadda, iyo qaabka downsamples wax walba oo 16 kHz mono waliba. soo dejisan WAV haddii ay tahay waxa aad leedahay, laakiin ha u dooni in ay master lossless oo la filayo in ay ka fiican.
My WAV ku dhuftay xadka 100 MB ka hor 30 daqiiqo - maxaa?
Xisaabta uncompressed: CD-tayada stereo waa ku saabsan 10 MB daqiiqada, sidaas darteed 100 MB oo kaliya 9-10 daqiiqo. Saddex hab oo ka: xisaab bilaash ah kor u qaadi karta cap in 500 MB, downmixing in mono kala badhtamaha size, ama u beddelaan in FLAC at 16 kHz mono - in ka badan 1 MB daqiiqada iyo losslessly isku mid ah in dhegaha qaabka.
Ma 24-bit iyo 96 kHz studio WAVs taageeray?
Haa - mid kasta oo bit qoto dheer iyo tirada tusaale ah FFmpeg akhriya: 16/24/32-bit, 8 ilaa 192 kHz. Waxay ku jiraan resampled gudaha, sidaas daraaddeed xalka dheeraad ah ma caawiyaan ama dhaawaca qoraalka; waa kaliya ka dhigaysa upload weyn.
Sidee ayaa stereo iyo multi-channel WAVs la xallin?
Channels waa downmixed mono ka hor qoraalka. Taasi waa fiican marka channel kasta oo ku lug leh qolka isku mid ah - laakiin haddii recorder aad dadka kala duwan ku soo bandhigaan channels kala duwan (lav bidix, boom midigta), kala qaybiyaan channels iyo qoraalka files kala duwan; waxaad ka heli doontaa qoraalka nadiif ah qof kasta oo ka badan mid kasta oo downmix.
Ma broadcast WAV (BWF) timecode qaadi doonaa in qoraalka?
Ha — embedded BWF timecode iyo cue markers waa la iska indho tiriyey, iyo transcript ee timestamps bilaabaan at 0:00 ka sare ee faylka. Haddii diiwaanka ka tirsan yahay video synced edit, dhoofinta SRT ama VTT halkan iyo ka dhig software edit aad u isticmaalaan offset on soo dejinta.
Diktafoonkii hore iyo WAV-yada telefoonka (ADPCM, µ-sharciga) — ma la taageeray?
Haa. FFmpeg decodes noocyada WAV dhaxal - ADPCM, µ-qaanuun / A-qaanuun, GSM - in diinta hardware iyo nidaamka telefoonka qoray. Ka fikiraan qaladaad badan oo ka badan diiwaanka casriga ah: formats kuwaas oo ah 8 kHz narrowband, sidaas magacyada iyo xadka xasillooni u baahan tahay in ay soo galaan editor.