49.152MHz na 45.1584MHz: Obi mgbawa nke Digital Audio na ụlọ ọrụ ọdịyo

9.152MHz na 45.1584MHz: "Obi obi" nke Digital Audio na ụlọ ọrụ ọdịyo

49.152MHz na 45.1584MHz bụ igodo abụọ dị elu-ụzarị elekere nkenke, nke a na-ejikarị ewepụta ọnụego ntụaka maka sistemụ ọdịyo dijitalụ. Isi ọrụ ha bụ inye oge kwụsiri ike{4}} akara ngosi maka usoro ọdịyo dị iche iche site na teknụzụ nkewa ugboro ugboro, si otú ahụ belata oge jitter (Jitter) yana hụ na ụda dị ọcha. Nke a bụ ngwa na ntụnyere teknụzụ nke abụọ n'akụkụ dị iche iche:

1. Mmekọrịta nkewa ugboro ugboro na ụkpụrụ ọdịyo

1. Nkewa ugboro ugboro na ọnụego nlele

49.152MHz:

o Ebumnuche nkewa ugboro ugboro: 48kHz (ọkọlọtọ ọdịyo ọkachamara), 96kHz, 192kHz.

o Usoro:

§ 48kHz=49.152MHz ÷ 1024

§ 96kHz=49.152MHz ÷ 512

§ 192kHz=49.152MHz ÷ 256

o Ụkpụrụ kwekọrọ: mmepụta ihe nkiri na telivishọn (48kHz), ọrụ mgbasa ozi (dịka, Netflix, Spotify), akụrụngwa ndekọ ọkachamara.

45.1584MHz:

o Ebumnuche nkewa ugboro ugboro: 44.1kHz (ụda ụda CD), 88.2kHz, 176.4kHz.

o Usoro:

§ 44.1kHz=45.1584MHz ÷ 1024

§ 88.2kHz=45.1584MHz ÷ 512

§ 176.4kHz=45.1584MHz ÷ 256

o Ụkpụrụ kwekọrọ: CD/SACD ịkpọghachi, ụdị nchekwa egwu ọdịnala (dịka, WAV, FLAC).

2. Ọtụtụ -Ndakọrịta ọnụ ahịa nlele

· Ime elekere abụọ-: Ngwaọrụ ngwụcha- dị elu (dịka ọmụmaatụ, dCS Vivaldi DAC) na-ejikọta kristal abụọ n'otu oge, na-enye ohere ịgbanwee akpaaka iji kwado isi mmalite ọdịyo 44.1kHz na 48kHz.

· Ntụgharị ngbanwe ọnụego ihe nlere asynchronous (ASRC): Na-eme ka elekere dị n'otu site na FPGA ma ọ bụ ibe raara onwe ya nye, mana ọ nwere ike iwebata oge jitter ọzọ, na-emetụta ogo ụda.

2. Ngwa ndapụta na nka chọrọ

1. Ngwá ọrụ ọdịyo ọkachamara

Ngwa Studio:

Ọtụtụ ndị na-edekọ egwu (dịka, AVID Pro Tools HDX) na-eji 49.152MHz wepụta elekere 48kHz, na-ahụ na mmekọrịta ya na mbipụta{5} maka ihe nkiri na telivishọn.

Akụrụngwa nchịkwa (dịka, Prism Sound ADA-8XR) kwesịrị ịkwado ma 44.1kHz na 48kHz, na-ewere nhazi elekere abụọ.

Sistemụ mgbasa ozi:

Ngwakọta ntụsara ahụ (dịka, Lawo mc²56) na-adabere na 49.152MHz iji mepụta akara 48kHz, na-ezute ụkpụrụ ọdịyo telivishọn agbasa ozi (dịka, AES3).

2. Ngwaahịa eletrọnịkị ndị ahịa

Ndewo {{0}Fi Audio Systems:

·

Ndị na-egwu CD/SACD (dịka Esoteric K-01XD) na-eji 45.1584MHz kwalite ọkpụkpọ 44.1kHz.

Ihe ndozi gụgharia (dịka, Linn Klimax DSM) na-akwado nkwanye ugwu 48kHz dị elu{3}} site na 49.152MHz.

Ụlọ ihe nkiri ụlọ:

AV amplifiers (dịka, Denon AVR-X8500H) kwesịrị dakọtara na ugboro abụọ ahụ iji dakọọ ọdịnaya Blu-ray (48kHz) na CD (44.1kHz).

3. Ụgbọ ala ọdịyo na obere ngwaọrụ

N'ime-Ụgbọala Ndị Nhazi Mgbama Dijitalụ (DSP):

Jiri 49.152MHz wepụta akara 48kHz, na-ebelata Jitter sitere na nnyonye anya ọkọnọ ike - ụgbọ ala.

Ihe nkwụnye ekweisi DAC nwere ike ibugharị (dịka ọmụmaatụ, iFi Audio Hip-DAC):

Gwakọta kristal 45.1584MHz dị ala- iji bulie isi iyi ọdịyo 44.1kHz na ngwaọrụ mkpanaka.

## 3. Ntụnyere nka na ụzụ na nhọrọ nhọrọ

Nkwanye nhọrọ:

Ihe nkiri na ihe onyonyo / mgbasa ozi mgbasa ozi: ebute ụzọ 49.152MHz iji hụ na ndakọrịta na usoro 48kHz.

Nkpọghachi egwu na CD/SACD: Họrọ 45.1584MHz maka imewe kachasị mma.

Ọtụtụ -Hazie Sistemu dakọtara: Nabata elekere abụọ{1}} + FPGA mgbanwe mgbanwe (dịka ọmụmaatụ, MSB Reference DAC).

49.152MHz na 45.1584MHz bụ "obi mgbawa" nke ọdịyo dijitalụ na ụlọ ọrụ ọdịyo, na-eje ozi abụọ bụ isi usoro: ihe nkiri / telivishọn / mgbasa ozi mgbasa ozi (usoro 48kHz) na nchekwa egwu (usoro 44.1kHz) n'otu n'otu. Ngwaọrụ njedebe{{5} dị elu na-ebelata Jitter wee weghachi ogo ụda dị ọcha site na ụlọ ọrụ elekere abụọ,{7}}ụzụ dị ala-, yana nhazi PCB ziri ezi. N'ọdịniihu, site na mgbasawanye nke ụda olu dị elu na mmetụta ụda immersive, teknụzụ elekere ga-aga n'ihu na-aga n'ihu n'ihu ultra{11}} mkpọtụ ọgba aghara dị ala.