Kyauta Mai Cire Hayaniyar Baya

Yadda Yake Aiki

Cire hayaniya yana gudana a kan ffmpeg.wasm, iri ɗayan injin sauti da wannan shafi ke bayarwa tuni daga asalinsa — don haka sabanin kowane kayan aiki mai kama, babu wani da ake loda shi kuma babu model na AI da ake sauke shi. Duka filters biyu na denoise an haɗa su a wannan injin tuni; kaɗai ƙarin fayil da abin ya shafa shine wani fayil na nauyin RNNoise na 297 KB da ake bayarwa daga /vendor, kuma idan ka zaɓi matakin murya kawai.

1. 1
   Kana zaɓen irin hayaniyar, ba wani mai zamewa da ba za ka iya fassarawa ba

   Matakin Murya yana gudanar da filter na arnndn na ffmpeg — RNNoise, wani ƙaramin cibiyar sadarwa na neural mai maimaitawa da aka horar da shi don raba magana da sautin bango. Matakin Amo & Hura yana gudanar da afftdn, wani denoiser na spectral subtraction na FFT-domain wanda yake kimanta wani mataki na hayaniya kuma yana cire shi. Suna kasawa a alkibla akasi: RNNoise yana ɗaukar kiɗa a matsayin hayaniya kuma zai lalata wani waƙa, yayin da afftdn yake lafiya a kan komai amma ba zai iya bin murya ta cikin daki mai cunkoso ba.
2. 2
   Ƙarfi yana mayar zuwa sigogin filter na gaskiya

   Don matakin murya, Haske/Matsakaici/Ƙarfi suna saita cakuɗin arnndn a 0.5, 0.8 da 1.0 — nawa daga sautin da aka tsabtace ake haɗe shi baya a kan asali, don haka Haske yana kiyaye wani sautin daki na dabi'a. Don hayaniya da hura, suna saita rage-hayaniyar afftdn zuwa dB 6, 14 da 28 da matakin hayaniyar da ake tsammani zuwa dB -40, -30 da -22. Ƙarfi da gangan yana tsayawa sosai kafin iyakar dB 97 na filter, wanda bayansa muryoyi suke fara jin kamar suna ƙarƙashin ruwa.
3. 3
   Wani dubawar A/B na daƙiƙa 15 yana gudanar da iri ɗayan filter

   Danna Dubawa kuma burauza yana warware lambar fayil ɗinka da Web Audio API, yana ɗauka daƙiƙa 15 daga tsakiya, yana ɓoye wancan sashin zuwa WAV, kuma yana turshi ta cikin iri ɗayan jerin filter na ffmpeg da zanen cikakke zai yi amfani da shi — sannan yana kunna sassan da aka tsabtace da na asali baya ta wani AudioContext guda don ka iya sauya tsakaninsu babu rasa matsayinka. Ana gina umarni biyu da iri ɗayan aikin, don haka dubawar ba za ta iya alkawari da wani abin da zanen ba zai bayar ba. Ba a daidaita ƙarar sassan biyu ba, saboda daidaita su zai ɓata wakilcin fayil ɗin da za ka sauke.
4. 4
   Cikakken wucewar, da wani Soke wanda gaske yake soke

   Ana rubuta fayil ɗinka na asali kai tsaye zuwa tsarin fayil na ƙwaƙwalwar ffmpeg kuma ana tace shi a wucewa guda zuwa WAV (pcm_s16le) ko MP3 (libmp3lame a 192 kbps) — babu decode na tsaka-tsaki, wanda yake kiyaye matuƙar ƙwaƙwalwa ƙasa isasshe don waya. ffmpeg.wasm yana gudana a Web Worker ɗinsa, don haka sandar ci gaba tana ci gaba da motsi kuma Soke yana kashe wancan worker a tsakiyar encode maimakon ɓoye wani spinner kawai. RNNoise yana aiki a ciki a 48 kHz, amma ana sake rubuta fayil ɗin da aka tsaftace a sample rate na rikodinka.

Kayan Aiki Masu Alaƙa