1080p subtitle to 720p subtitle


wvman80

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I have a 1080p blu ray remux avc dts hdd ma 5.1 subtitle of a movie I would like to convert to a 720p subtitle. Is there a simple way to do this?
 

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Subtitles are textual and handle by the player
 

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The timing in the subtitle file will be the same for the 720 as it is for the 1080 and should just work out of the box. That’s if you did the remux.

What are we talking here? Reads a little too much like piracy.
 

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    Windows 11 Pro 23H2 Build: 22631.4249
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If the timing is out, calculate by how much and use something like this:

 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 Build 22631.4890
    Computer type
    PC/Desktop
    Manufacturer/Model
    Sin-built
    CPU
    Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (4th Gen?)
    Motherboard
    ASUS ROG Maximus VI Formula
    Memory
    32.0 GB of I forget and the box is in storage.
    Graphics Card(s)
    Gigabyte nVidia GeForce GTX 1660 Super OC 6GB
    Sound Card
    Onboard
    Monitor(s) Displays
    4 x LG 23MP75 - 2 x 24MK430H-B - 1 x Wacom Pro 22" Tablet
    Screen Resolution
    All over the place
    Hard Drives
    Too many to list.
    OS on Samsung 1TB 870 QVO SATA
    PSU
    Silverstone 1500
    Case
    NZXT Phantom 820 Full-Tower Case
    Cooling
    Noctua NH-D15 Elite Class Dual Tower CPU Cooler / 6 x EziDIY 120mm / 2 x Corsair 140mm somethings / 1 x 140mm Thermaltake something / 2 x 200mm Corsair.
    Keyboard
    Corsair K95 / Logitech diNovo Edge Wireless
    Mouse
    Logitech G402 / G502 / Mx Masters / MX Air Cordless
    Internet Speed
    100/40Mbps
    Browser
    All sorts
    Antivirus
    Kaspersky Premium
    Other Info
    I’m on a horse.
  • Operating System
    Windows 11 Pro 23H2 Build: 22631.4249
    Computer type
    Laptop
    Manufacturer/Model
    LENOVO Yoga 7i EVO OLED 14" Touchscreen i5 12 Core 16GB/512GB
    CPU
    Intel Core 12th Gen i5-1240P Processor (1.7 - 4.4GHz)
    Memory
    16GB LPDDR5 RAM
    Graphics card(s)
    Intel Iris Xe Graphics Processor
    Sound Card
    Optimized with Dolby Atmos®
    Screen Resolution
    QHD 2880 x 1800 OLED
    Hard Drives
    M.2 512GB
    Antivirus
    Defender / Malwarebytes
    Other Info
    …still on a horse.
Usually all that's needed is to adjust the start time (use SubtitleEdit or the online app linked to by @antspants), but if you have subtitles that drift, it's best to keep looking for a subtitle file that matches correctly (once the start time is correct).

Otherwise, you can use SubSync which synchronizes by listening to the audio.
 

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    Windows 10/11
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