Njirimara Filterbank na PLP
Atụmatụ Filterbank na Perceptual Linear Prediction (PLP) bụ ụzọ isi chịkọta akara okwu n'ime kọmpat, ọnụ ọgụgụ bara uru nke ụdị mmụta igwe nwere ike iji.
Nchịkọta
They matter because they let speech recognizers focus on the parts of sound humans actually hear, discarding irrelevant detail.
Ime miri emi
Ka ịgbanwee ọdịyo raw ka ọ bụrụ njirimara, a na-ekewa mgbama ahụ ka ọ bụrụ okpokolo agba dị mkpụmkpụ wee gafere n'ụlọ akụ nke ihe nzacha na-ekpuchi anya n'ọ̀tụ̀tụ̀ mel, nke na-eṅomi mmetụta ntị na-adịghị adị ugboro ugboro. Ịchịkọta ike na nzacha ọ bụla na-emepụta atụmatụ log-mel filterbank, ntinye kachasị maka ụdị okwu dị omimi nke oge a. PLP, nke Hynek Hermansky mebere, na-agbakwụnyekwu psychoacoustics: ọ na-emetụta ụgbụ dị egwu nke ogbugbo, ụda ụda nha nha nha nha nha dị ka ntị na-eme, yana mkpakọ ike na ụda cube-root, wee dabara n'ụdị osisi niile (atụmatụ n'ahịrị) iji mee ka ụdịdị ahụ dị nro. Nsonaazụ bụ nnochite anya dị ala siri ike na ndịiche na-ekwu okwu na ọwa. MFCC bụ nwa nwanne nna na-agbakwụnye mgbanwe cosine iji mee ka mmepụta ụlọ akụ filter.
Nghọta nka nka
Isi echiche bụ mgbagha nghọta: linear hertz na-emegharị ka ọ bụrụ mel ma ọ bụ akpịrịkpa ogbugbo ya mere nzacha dị warara na obere ugboro ma obosara na nke dị elu, dabara na mkpebi cochlear. Mgbakwunye ụda nha nhata nke PLP yana ụdị mkpakọ cube-root ka nghọta ụda ntị siri bụrụ nke na-adịghị ahụkebe. Nzọụkwụ ikpeazụ-ahịrị-amụma dabara na envelopu dị nro, na-ewere udi ụda olu ma na-egbochi nkwekọ ụda olu dị iche n'etiti ndị ọkà okwu.
Mmetụta atụmatụ
Nweta na iru
Ọ na-eme ka nnweta ya dịkwuo mma site na ndegharị, ịkọ akụkọ, na ntụgharị olu.
Ọnụ ego na mmefu ego
Ndị otu mgbasa ozi nwere ike ibubata ọdịyo a na-egbu maramara ngwa ngwa site na iji obere mmefu ego.
Ọsọ na ọnụ ọgụgụ
Sistemụ na-eche ihu ndị ahịa nwere ike hazie mkparịta ụka n'ọtụtụ buru ibu.
Ọdịnihu nke Filterbank na atụmatụ PLP
Netwọk akwara dị omimi na-ahọrọ ụlọ akụ raw log-mel filter karịa atụmatụ PLP ma ọ bụ MMFC arụpụtara nke ukwuu, n'ihi na netwọkụ ahụ na-amụta mgbanwe nke ya karịa mma ejiri aka mee. Akụkụ a nwere ike ịmụta n'ihu dị ka SincNet na wav2vec nke na-arụ ọrụ na ụdị ebili mmiri. N'agbanyeghị nke ahụ, mel filterbanks na-anọgide n'ebe nile dị ka ntinye kwụsiri ike, dị ọnụ ala, yana ụkpụrụ nghọta dị n'azụ PLP na-aga n'ihu na-agwa ka ndị injinia na-emepụta ma na-akọwa nkọwa ndị a mụtara.
Mmejuputa n'ezie n'ụwa
Ịgbakọ atụmatụ log-mel filterbank 40 n'otu etiti dị ka ntinye na netwọk akwara okwu na ederede.
Iji atụmatụ PLP na sistemụ iwu olu siri ike maka ụgbọ ala
Ọkpọọkpọ amata ọkà okwu na-adabere na njiri mara nke nwere nghọta
Ịhụ isiokwu na ngwaọrụ ndị dị obere ebe njirimara filterbank na-ebelata mkpokọta
Ihe ize ndụ & okporo ụzọ nche
Iji olu eme ihe na ihe egwu mpụta ga-abawanye mgbe nkwenye na-efu.
Izi ezi nwere ike ịdaba n'ofe ụda olu, olumba ma ọ bụ gburugburu mkpọtụ.
Enwere ike imehie ọdịyo sịntetik dị ka ezigbo okwu na-enweghị akara doro anya.
Map mmejuputa
Nweta nkwenye doro anya maka ijide olu, imechi, na ijigharị.
Nwale ogo n'ofe ndị na-ekwu okwu dị iche iche yana ọnọdụ ndabere.
Kọwaa mgbe mmadụ ga-enyocha ma ọ bụ kwado nsonye.
Deba aha ọdịyo sịntetik ma debe ndekọ ihe ndekọ maka ịza ajụjụ.
Nọgide na-eme nchọpụta
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Ntuziaka na-esote
Nyochaa Linear na Ntụle Njirimara Frozen
Ajụjụ a na-ajụkarị
What is Filterbank and PLP Features?
Atụmatụ Filterbank na Perceptual Linear Prediction (PLP) bụ ụzọ isi chịkọta akara okwu n'ime kọmpat, ọnụ ọgụgụ bara uru nke ụdị mmụta igwe nwere ike iji. Ha dị mkpa n'ihi na ha na-ahapụ ndị na-ama okwu ka ha lekwasị anya n'akụkụ ndị mmadụ na-anụ ihe n'ezie, na-atụfu nkọwa ndị na-adịghị mkpa.
Kedu ihe kpatara eji ekewa oghere filter okwu na mel ma ọ bụ ogbugbo kama linear hertz?
Akara mel na ogbugbo na-atụle mkpebi cochlear nke mmadụ, nke ka mma na obere obere ugboro yana nke siri ike n'ogo dị elu.
Kedu ihe nzọụkwụ amụma akara na PLP na-emezu?
PLP dabara n'ụdị mkpanaka niile iji mepụta envelopu dị nro, na-ejide njirimara ụda olu ka ọ na-egbochi nkwekọrịta ụda olu dabere na ọkà okwu.
Kedu ụdị njirimara bụ ntinye kachasị maka ụdị njirimara okwu omimi nke oge a?
Njirimara Log-mel filterbank bụ ọkọlọtọ, kọmpat, ntinye nghọta bara uru maka ụdị okwu dị omimi nke taa.
Kedu ka MFCC si dị iche na njirimara log-mel filterbank raw?
MFCC na-etinye mgbanwe cosine pụrụ iche n'elu ike log-mel filterbank iji chọọ ha mma ka ọ bụrụ ọnụ ọgụgụ kọmpat.
Kedu ihe echiche PLP gụnyere nke ndị isi mel filterbanks adịghị?
PLP na-agbakwunye nkwalite ụda nha nha yana mkpakọ ike ruo na ụda cube-root iji mee ka nghọta ụda olu mmadụ ka mma.