ZelonAI ZelonAI

iOS aplikacija · iOS

Practice at your own tempo.

SpeedPlayer

SpeedPlayer is a precision speed player for video and audio practice, with dual playback modes (continuous 0.25x–4.00x and precision 0.01x–0.24x), A-B loops, state memory, and local-first privacy.

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Privatnost na prvom mjestu Račun nije potreban Radi izvan mreže
SpeedPlayer mark

SpeedPlayer

status
status live
App Store
iOS
tech stack
SwiftUI · AVFoundation · Core Data · StoreKit 2

Ukratko

Fig. 01

Mastery hides in the slow parts. Take the passage down to a crawl, loop the hard bar, and come back up to speed.

U aplikaciji

Fig. 02
SpeedPlayer — screenshot 1
SpeedPlayer — screenshot 2
SpeedPlayer — screenshot 3

Značajke

No. 01

Fast has its thrill; slow has its precision.

01

0.01x to 4.00x dual playback modes (continuous + precision)

02

A-B loop, mirror, zoom, and per-video state memory

03

Video & audio support

MP4, MOV, MKV, MP3, FLAC, WAV, and more

Specifications

Tab. 01

At a glance

Platforms
iPhone
Speed
0.01× – 4.00× precise playback
Loops
A-B loops with per-video settings
Extras
Mirror & zoom, local-first playback

Radni tijek

No. 02

How a hard passage gets conquered.

  1. 01

    Load practice material

    Import lesson videos or audio; playback is local and format-agnostic.

  2. 02

    Mark an A-B loop

    Ring the toughest bars, loop them, and drop to 0.08x to follow along slowly.

  3. 03

    Climb back to full speed

    Step back up to 1x as it settles. Per-video memory keeps your progress for tomorrow.

Povjerenje i privatnost

No. 03

Practice material stays local.

Privatnost na prvom mjestu

Local-first: no account, no ads, no tracking — data never leaves the device.

Račun nije potreban

No sign-up, no login. Install it and it just works.

Radi izvan mreže

Everything core runs offline; no network required.

Practice is the art of repetition. SpeedPlayer makes repetition precise — 0.01x stepping, looping, per-video memory — while keeping data on device. You just focus on the passage at hand.

product direction

No. 04

Where this app is headed, in the maker’s own hand.

01

Precision Speed

Continuous and precision playback modes for practice.

02

Repeat Sections

A-B loop, mirror, zoom, and per-file state memory.

03

Media Coverage

Supports common video and audio formats for learning and rehearsal.

O aplikaciji SpeedPlayer

No. 5

The longer story — what it is, who it is for, and the choices behind it.

Zadnje ažuriranje: 23. travnja 2026.

SpeedPlayer je medijski reproduktor usmjeren na vježbanje, namijenjen korisnicima koji žele proučavati vlastite video i audio snimke uz preciznu kontrolu brzine umjesto upravljanja velikom medijskom knjižnicom.

Osnovni smjer

  • Učitavanje videa ili audija iz aplikacija Fotke, Datoteke, putem izravne medijske poveznice ili otvaranje iz drugih aplikacija
  • Dva načina reprodukcije: neprekinuti način (0,25x–4,00x, zvuk je sačuvan) i način preciznog pregleda (0,01x–0,24x, ultra spor, zvuk isključen)
  • Čuvanje A-B petlje, zrcaljenja, područja prikaza i memorije reprodukcije za svaki video
  • Isključivo audio datoteke prikazuju namjensku vizualizaciju gramofonske ploče čija brzina okretanja odgovara brzini reprodukcije

Granice proizvoda u Stage 1

  • SpeedPlayer u Stage 1 nije NAS preglednik, studio za izvoz ni AI trener
  • SpeedPlayer nije opći web-preglednik i ne nudi javni feed sadržaja ni pretraživ katalog
  • Proizvod se usredotočuje na brzo uvođenje, brzo nastavljanje i višekratno dorađivanje jednog isječka
  • Lokalne datoteke i stanje reprodukcije prema zadanim postavkama ostaju na uređaju

Podržani mediji

Video formati

SpeedPlayer podržava sljedeće video formate: MP4, MOV, MKV, M4V i HLS streamovi.

Audio formati

SpeedPlayer podržava i isključivo audio datoteke: MP3, AAC, M4A, FLAC, WAV i AIFF. Audio datoteke automatski se prepoznaju i reproduciraju s namjenskom audio vizualizacijom.

Provjera formata

SpeedPlayer za provjeru valjanosti datoteka koristi sustavni medijski okvir. Ako datoteka nije u kompatibilnom formatu, SpeedPlayer je neće uvesti.

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docs support

No. 6

Plain-language documents. No fine print you would be surprised by.

SpeedPlayer O aplikaciji SpeedPlayer SpeedPlayer Djeca i roditelji SpeedPlayer Contacts & Groups SpeedPlayer Pravila privatnosti SpeedPlayer Uvjeti korištenja SpeedPlayer support center

faq title

Some skills live below normal hearing speed: a fast lick on guitar, a dance transition, a bird's call. Precision mode (0.01x–0.24x) slows audio and video down to a crawl without changing pitch, so your ear can follow what full speed blurs past.

Continuous mode sweeps 0.25x–4.00x for normal fast/slow viewing. Precision mode steps 0.01x–0.24x for dissecting a single passage. Together they cover the full 0.01x–4.00x range, and you can pair either with A-B loops on the hard bar.

Yes — per-video state memory keeps speed, position, loop marks, and view settings for every file. Reopen a practice clip tomorrow and it resumes exactly as you left it, mirror and zoom included.

Common video and audio containers both: MP4, MOV, MKV for video; MP3, FLAC, WAV and more for audio. Language drilling and music practice work the same — the player does not care whether your practice material has a picture.

Yes — local-first by design. Your files and your practice history never leave the phone; there is no account and nothing to upload.

Start at 0.01x, finish at full speed.

SpeedPlayer

iOS. Download on the App Store.

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