Ngā Whakaritenga Whānui mō te Rerema
Kua noho te rere oro hei wāhanga nui o te ao matihiko o ēnei rā. Mai i te mātakitaki kiriata me ngā raupapa i runga i ngā papaaho pēnei i a YouTube, Netflix, Disney+ rānei, ki te whai i ngā whakapaoho kēmu ora, ki ngā hui mahi me ngā akomanga ipurangi mā Zoom, Google Meet rānei—e whakawhirinaki ana te katoa ki tētahi hononga ipurangi pumau. Heoi, he tokomaha tonu te hunga e whakataurite ana i te "ipurangi tere" ki te "rere kore-raruraru," i te mea ko te mea nui ki te rere oro ehara i te tere teitei anake, engari he huinga o te whānui o te hononga, te pumau, me te whakaroa. Ka matapakihia e tēnei tuhinga ngā whakaritenga whānui o te hononga mō te rere oro i roto i ngā kupu mahi: e hia ngā Mbps e hiahiatia ana, ngā āhuatanga e pā ana ki a ia, me pēhea te arotau.
He aha te whānui o te hononga, ā, he aha te hiranga o tēnei mō te rerema?
Ko te whānui o te hononga ipurangi te kaha e taea ai te whakamahi i tētahi raina raraunga ipurangi mō ia waeine wā—e inehia ana i roto i ngā Mbps (megabits ia hekona). Ko te nui ake o te whānui o te hononga, ko te nui ake o ngā raraunga ka taea te tuku me te whiwhi i te wā kotahi. Ko te roma ataata te tukanga o te tango tonu i ngā raraunga ataata. Mēnā kāore i te rawaka te whānui o te hononga, ka mutu pinepine te ataata (te aukati), ka heke aunoa te kounga (te whakaheke aunoa), ka kore rānei te oro e tukutahi.
He mea nui kia mōhio koe ehara i te whānui o te hononga te mea anake e whakatau ana i te wheako roma ora. He mea nui anō hoki te pumau o te hononga (tere pumau), te whakaroa (te wā haere raraunga), me te ngaronga o ngā raraunga i te huarahi, inā koa mō te roma ora me ngā waea ataata.
Ngā whakaritenga whānui i runga i te kounga ataata
Ko te teitei ake o te taumira ataata, ko te nui ake o ngā raraunga me tuku. Anei tētahi tirohanga whānui mō ngā whakaritenga whānui iti rawa mō te rerema (tērā pea ka rerekē ngā tau i runga i te kōteke/kōpeketanga, te tūāpapa, me te tere moka o te ihirangi):
– SD (480p): tata ki te 1–3 Mbps
– HD (720p): tata ki te 3–5 Mbps
– HD Katoa (1080p): tata ki te 5–8 Mbps
– 2K (1440p): tata ki te 10–20 Mbps
– 4K (2160p): tata ki te 25 Mbps, neke atu rānei (e taunakitia ana kia 25–50 Mbps mō te pumau)
Ko ngā tatauranga kei runga ake nei mō te kotahi pūrere e rere ana i te wā kotahi. Mena he maha ngā kaiwhakamahi i roto i te kāinga, ka piki ake te tapeke o te whānui o te hononga e hiahiatia ana nā te mahi whakarara.
Ehara te rere ataata i te mātakitaki noa iho: te rere ora me te hui ataata
He rerekē ngā whakaritenga whānui mō te mātaki ataata (tango) i ērā mō te whakapāho ataata (tukuatu). He maha ngā mōkihi ipurangi he nui ngā tango engari he iti ngā tukuatu, ahakoa he mea nui ngā tukuatu mō:
1. Te roma ora (YouTube Live, Twitch, TikTok Live)
2. Ngā waea ataata me ngā hui ipurangi
3. Tukuatu i ngā ihirangi ataata
Ngā whakaritenga tukuake e matapaetia ana mō te roma ora:
– 720p 30fps: te tukuake tata ki te 3–5 Mbps
– 1080p 30fps: te tukuake tata ki te 5–8 Mbps
– 1080p 60fps: te tukuake tata ki te 8–12 Mbps
– 1440p/4K: ka taea te tukuake i te 15–50 Mbps (i runga i te tere moka e whakamahia ana)
I tēnei wā, mō te hui ataata:
– hui 1:1 (HD): tata ki te 1.5–3 Mbps (tukuake me te tango)
– Ngā hui rōpū (HD): ka taea te 3–6 Mbps, neke atu rānei, i runga i te maha o ngā kaiuru me te whakaaturanga o te ataata a te katoa.
Ki te mea he maha āu hui tuihono, kia nui ngā tikiake, kia rawaka hoki ngā tukuake.
Ngā āhuatanga e pā ana ki ngā whakaritenga whānui
Ahakoa te āhua māmā noa iho o te ripanga whakaritenga, i roto i te mahi ka rerekē pea te wheako roma nā ēnei āhuatanga e whai ake nei:
1. Te maha o ngā taputapu me ngā mahi e mahi tahi ana
Ka taea e te kāinga kotahi te whakamahi i ngā taputapu maha: he pouaka whakaata e rere ana, he waea e mātaki ana i a YouTube, he pona e hui ana, me ētahi atu taputapu e tango ana i ngā whakahōutanga. Ka tohaina te whānui o te hononga. Hei tauira:
– Mātakitaki pouaka whakaata 4K (25 Mbps)
– Hui pona HD (3 Mbps piki/heke)
– E rua ngā waea e mātaki ana i te 1080p (2 × 6 Mbps = 12 Mbps)
Ka taea e te tapeke o ngā whakaritenga tango te tata ki te 40 Mbps, neke atu rānei, kāore i te whakaurua ngā mahi kē atu.
2. Wi-Fi me te taura LAN
He pumau ake ngā hononga LAN (Ethernet), he iti ake te whakaroa, ā, he iti ake te pokanoa. Ka heke pea te mahi Wi-Fi nā te tawhiti, nā ngā pakitara, nā te pokanoa mai i ētahi atu taputapu, nā te pouara tawhito rānei. He maha ngā take o te "ipurangi 50 Mbps engari kei te pupuri tonu i te arai" ka puta mai i ngā aukati Wi-Fi, ehara i te ISP.
3. Kounga pouara me ngā paerewa Wi-Fi
Ka taea e ngā pouara paerewa tawhito (hei tauira, Wi‑Fi 4/802.11n) te whakararu, inā koa mō te whakamahinga 4K, maha rānei o ngā taputapu. Ko ngā pouara Wi‑Fi 5 (ac) Wi‑Fi 6/6E (ax) rānei he pai ake te whakahaere i te nui o te waka me ngā hononga maha i te wā kotahi.
4. Ngā utunga, ngā piki me ngā heke, me ngā hāora pīki
He maha ngā wā ka heke te tere o te ipurangi i ngā wā pīki. Nō reira, ki te whakaarohia he "rawa" te whānui o te ipurangi, kāore pea e ranea i roto i ngā āhuatanga o te ao tūturu. Mēnā he 20–50% te tawhiti i runga ake i te whakaritenga iti rawa, ka haumaru ake te rere o te ipurangi.
5. Kōtēke tūāpapa me te tere moka
Ka whakamahia e ngā tūāpapa hou ngā kōteke whai hua (hei tauira, H.264, VP9, AV1, HEVC), e pā ana ki te tere bitrate. Ka taea e ngā ataata 4K me ngā kōteke whai hua ake te whai hua ake i ngā kōteke tawhito. Heoi, kāore e taea e ngā taputapu katoa te tautoko pai i ngā kōteke hou.
Te whānui o te whānui e taunakitia ana mō te whakamahinga whānui
Anei ētahi tūtohutanga whai hua mō ngā kāinga, mō ngā tāngata takitahi rānei, ki te mea he pai te kounga o te Wi-Fi:
1. Kaiwhakamahi takitahi (mātakitaki 1080p, tirotiro, pāpāho pāpori):
– He pai te 15–25 Mbps
2. Whānau iti (2–4 ngā taputapu hohe, roma 1080p, hui i ētahi wā):
– 30–50 Mbps
3. Rongohia te 4K i runga i te pouaka whakaata me ētahi atu taputapu e hohe ana:
– 50–100 Mbps
4. Ngā kāinga he maha ngā kaiwhakamahi (5+ ngā taputapu, 4K, petipeti ipurangi, hui tahi):
– He haumaru ake te 100 Mbps me runga ake
Mō ngā kaihanga e rere ora ana i ngā ataata, kia aro ki ngā tukuake:
– Me tukuake kia 10 Mbps te iti rawa mō te kounga pumau 1080p, me te teitei ake mēnā e hiahia ana koe ki te 60fps, ki te pai ake rānei te kounga.
Me pēhea te tirotiro mēnā he rawaka tō whānui o te rohe
1. Whakamātautau tere: Tirohia te tango, te tukuake, me te ping. Me mahi tēnei i ētahi wā i ngā wā rerekē.
2. Tirohia te pūrere e rere ana koe: hei tauira, he maha ngā taupānga tatauranga whatunga kei ngā pouaka whakaata atamai, ka taea rānei e koe te tirotiro i te kounga kua tīpakohia (Aunoa/1080p/4K).
3. Aroturuki i te aukati me te hekenga o te kounga: ki te heke pinepine te kounga mai i te 1080p ki te 480p, tera pea kāore i te rawaka te whānui o te hononga, te pumau rānei.
4. Whakamātauria ki te taura LAN: ki te pai te mahi me te taura engari kāore me te Wi-Fi, kei te whatunga ā-rohe te raruraru.
Ngā tohutohu hei whakapai ake i te rerema me te kore e hiahia ki te whakapai ake i tō mōkihi
1. Whakamahia he taura LAN mō te Pouaka Whakaata Atamai/Rorohiko mēnā ka taea.
2. Nukuhia te pouara ki tētahi wāhi pokapū ake, kāore he arai.
3. Whakamahia te Wi-Fi 5 GHz, te Wi-Fi 6 rānei mō ngā taputapu e tautokona ana (tere ake, iti iho te pokanoa i te 2.4 GHz).
4. Whakahohehia te QoS (Kounga Ratonga) i runga i te pouara hei whakarite i ngā waeatanga ataata/roma ataata.
5. Whakawhāitihia ngā taputapu e tango ana i ngā kōnae nunui i te wā e rere ana te ataata (ngā whakahōutanga kēmu, ngā tārua kapua).
6. Whakaitihia te taumira mēnā e tika ana: He pai te 1080p mō ngā mata waea pūkoro; he pai ake te 4K mō ngā pouaka whakaata nunui.
7. Whakahōuhia te pouara me te pūmanawa hei whakapai ake i te mahi me te pumau.
Te Katinga
Ko ngā whakaritenga whānui mō te roma ataata e whakawhirinaki ana ki te taumira ataata, te maha o ngā taputapu hohe, me te kounga o tō whatunga ā-rohe (ina koa ko te Wi-Fi). I te nuinga o te wā, ko te roma ataata 1080p e hiahia ana ki te 5–8 Mbps mō ia taputapu, ko te 4K ia e hiahia ana ki te 25 Mbps, neke atu rānei. Mō te roma ora me te huihuinga ataata, he mea nui ngā tere tukuake. Nā te mea he maha ngā wā ka uru mai ngā rerekētanga me te whakamahinga i te wā kotahi i roto i ngā āhuatanga o te ao tūturu, mā te whiriwhiri i tētahi mahere ipurangi me te tawhiti i runga ake i te whakaritenga iti rawa ka pai ake te wheako roma ataata.
Ki te hiahia koe, ka taea e au te āwhina i a koe ki te tatau i te nui o te whānui o te hononga o tō whare i runga i te maha o ngā taputapu, ō tikanga roma ora (720p/1080p/4K), me te mea kei te whakahaere hui koe, kei te whakahaere roma ora rānei—whakahuatia te horopaki.
