AMR Chishanduri

Chinja AMR kuenda uye kubva kune akasiyana mafomati

Nezve AMR

AMR ndiyo codec yemashoko yakagadzirirwa kuburitsa mashoko uye kufona, izvo zvinoita kuti mukurumbira wemutambi uite sewakaipa.

Mashandisirwo Akajairika

Voice recordings
Mobile audio
Telephony

AMR Mibvunzo Inowanzo bvunzwa Nezvekuchinja

Chii chinonzi AMR faira?

AMR (Adaptive Multi-Rate) is an audio format optimized for speech compression.

Ndeipi mhando yapfuura yakarasikirwa mu AMR faira?

Chii chatinenge tichifunga kuti chaive chakakosha, asi chakanga chisina kuwanikwa. AMR chinomanikidza nekuisa zvinyorwa zvacho mumifananidzo, izvo ziso harichazvione - mabhureki anomira pasi pezvombo zvakanyanyisa, mafrequencies panzvimbo dzekunzwa - uye kubvisa zvachose. Pachimiro chehutano bitrate iyo haisi kutaurwa kune vese. Chii chisina kutaurwa chinogona kudzoreredzwa, saka kushandura kune lossless format inochengeta ikozvino mamiriro sezviri nyore kupfuura kudzoreredza zvakanyorwa. AMR i narrowband speech codec ichiita pakati pe4.75 ne12.2 kbps, ichifananidza nevanhu vanotaura, kwete nezvose zvinotaurwa nevanhu.

Nei yangu AMR rekodhi ichinzwa yakaderera kana ichienzaniswa nemusiyano?

Nekuti haisisiri yakanga yagadzirirwa kutakura mimhanzi. AMR ndeimwe ye narrowband speech codecs yakagadzirwa ne mobile networks, yakagadzirirwa kuita kuti mazwi anzwisisike pa bitrate inofungidzirwa mu kilobits ane dhigirii rimwe chete. Zvese zviri kunze kwesimba remunhu rinenge richiparadzwa panguva yekutora. Kushandura kuita full-range format kunochengeta kurecord kunogona kushandiswa chero kupi, asi hazvigone kuwedzerazve frequencies dzisingazowedzerwe. AMR inoravira ndangariro: 8 kHz bandwidth yake inoravira zvese zviri pamusoro pefoni frequencies, uye hapana mari yekudzokorora-kunyora zvinozoidzosera.

Ndeapi ma AMR mafaera anoonekwa seanouya kubva?

Voicemail systems, push-to-talk radios, older handset and telephony recording — anywhere audio had to travel over a narrow, expensive channel. That heritage explains both why the files are tiny and why they sound the way they do. Converting makes them play in ordinary software; it does not, and can’t, add fidelity the capture never had. AMR i Adaptive Multi-Rate, 3GPP standardized speech codec yeGSM voice calls uye mobile voice recorders.

Ndinofanira kuchengeta mavhidhiyo se AMR?

Kunyangwe kana chimwe chinhu chichida kuitwa. Mufananidzo unoramba uchivhura, uye hapana kuomarara nezvekushandura archive iyo haisi kukonzera dambudziko, asi haisi kusvikira ikozvino uko kugadzirwa kwezvinhu kana kugadzikana kunoenda. Kuti uwane chero chinhu chitsva, mufananidzo wenguva yese hauna kudhura chero chinhu chitsva uye unodzivirira kusangana nenyaya iyi munguva pfupi iri kutevera.

Nei AMR faira risingatamba mubrowser yangu?

Mabhurawuza anodecode afupi, akavimbika mafomu eaudio uye AMR ari kunze kweiyo, saka faira inorodha pasi sezviri nyore kupfuura kutamba kana mutambi anotaura nyaya yematambudziko. Desktop software ine yakakura codec set inovhura pasina dambudziko. Kana audio inofanirwa kutamba pawebhusaiti, kushandura kwayo kunogona kugadziriswa - hapana mutambi wekuvaka achawedzera decoder iyo browser haisi kutumira.

Ndeipi bitrate inofanira kushandurwa kune yangu AMR faira?

Kuenzanisa chinangwa, kwete chikonzero. Kuti mutambire, 256 kusvika 320 kbps inoratidzika kune vese vanonzwa; kuti muite mashoko kana podcasts, 96 kusvika 128 kbps zvinokwana uye zvinovhara faira. Kunyora pasi pechikonzero chekunyora kunokuvadza nzvimbo — kunochengeta mashoko akapfuura nenzira yekuora uye hakudzosere chero chinhu chakatanga kunyorwa.

Kushandisa AMR kunoda pasipoti?

Codecs zvinoda kuiswa mumidziyo iyi zvinopihwa nemakambani ane kodzero dzezvigadzirwa zvemitambo, uye kupihwa kwazvo kunoitwa nevanhu vanotengesa decoders—foni, browser, uye operating system—nguva yakareba usati wawana faira. Izvi ndizvo zvinoita kuti maforodha aya arambe aripo muhardware uye kuti zvirongwa zvemahara zvekushandisa zvivepo, uye hazvina kuchinja chero chinhu panyaya yekushandura faira yawakawana.

Kushandura kunochinja sei sampling rate ye AMR yangu audio?

Hapana kana iwe unokumbira kuti. Kushandura kunochengeta chikonzero chekukwira kwemitengo — 48 kHz inoramba iri 48 kHz, 44.1 kHz inoramba iri 44.1 kHz — nekuti kudzokorora kuongorora kunopa mutengo wemhando yemhando

Ndinogona here kushandura zita rekuti extension sezviri pachena, kwete kushandura AMR?

Asi hazvina kuitika kare, uye zvinokosha kuziva kuti nei: kusvikira ndechimwe chiratidzo, uye bytes mukati mezvinyorwa zvakagadzirwa kuti zvive neimwe mhando. Kushandura zita refaira kunokonzera kuti zita riite serisina kunaka, uye chero chinhu chinovhura chinogona kubvisa faira kana kuisa mufananidzo. Mumwe mubvunzo wakaoma ndewekuti kana iwe uchida kushandura zita refaira, iwe unofanirwa kuisa zita refaira risina kunaka.

Chii chinoitika kune yangu AMR faira mushure mekushandurwa?

Kukwira uye kushandurwa kwemhedzisiro kunogara paseva dzedu kwemazuva anenge 24, izvo zvinopa nguva yekurodha pasi mhedzisiro, uyezve zvinobvisa nekugadzirisa otomatiki. Kutumira kunoitika kuburikidza neHTTPS munzira mbiri. Hapana munhu anoverenga zvinhu, hapana chinhu chinonyorwa, uye hapana chinhu chinoendeswa kune mumwe munhu.

Ndeipi nguva yekushandura iyo AMR inotora?

Zvimwe zvidiki zvinyorwa zvinotanga kugadzirwa mumasekondi mashoma. Zvidiki zvinyorwa zvinotanga kugadzirwa mumasekondi mashoma, uye zvinhu zvinotora nguva yakareba kuti zvigadziriswe: vhidhiyo kana vhidhiyo rakaomarara rinofanira kugadziriswazve frame neframe, kana kuti vhidhiyo kana vhidhiyo rakaomarara rinofanira kugadziriswazve nechiratidzo chekuziva, kana kuti vhidhiyo kana vhidhiyo rakaomarara rinofanira kugadziriswazve nechiratidzo chekuziva.