Recording and Playback

Reeltime Pro provides a highly performant video pipeline and a modern recording and playback engine allowing for simultaneous TC-synced group recording of up to six camera signals (in HD resolution at up to 60 fps).

Note: 4K support in beta: Higher resolutions such as UHD (3840×2160) are generally supported but do not yet offer all ANC metadata features, video I/O device support, and performance  optimization


  • There are several ways to create single recordings and TC-synced group recordings:
    • You can create a single recording from a single camera’s live signal with the record button in the individual slot card or the associated menu item or Stream Deck controller action
    • You can create a timecode-synced group recording from all currently armed input slots
      • with the record button in the viewer controls (a sync info label indicates which slots are currently synced and will be included in the group recording)
      • or with the “record all” button in the toolbar, or the associated menu item or Stream Deck controller action
    • Generally, all “armed” input slots are recorded in the upcoming group recording. However, you can un-arm slots you want to exclude from the next group recording with the arrow button beside the record button in the slot UI.
    • You can set multiple in and out ranges during recording for marking several actions within one take
    • The clip name and SMPTE timecode that is embedded in SDI camera signals are stored together with the global metadata for each recorded clip (SMPTE timecode only works with the “Original Timecode” recording setting)
  • In the recording settings, you find advanced options to customize settings and behaviors related to recordings: 
    • Timecode:
      • You can sync by using the original timecode embedded in the SDI signal (make sure to jam-sync cameras to create timecode-synced groups using SMTPE timecode)
      • Alternatively, you can sync multiple incoming signals in your group recording by using the current time as timecode
    • Auto Record: You can trigger start/stop recording based on the record flag embedded in SDI camera signals
      • You can choose between different Trigger Record Behaviours and Trigger Stop Behaviours (e.g., if you can only receive a record for one camera in your setup, you can choose that this camera should trigger start/stop recording for all cameras)
      • If your production requirements allow the use of RecRun timecode, you can choose that option as an alternative way to use auto record (e.g., if you cannot receive a record flag via SDI). The RecRun auto record mechanism triggers start/stop recording based on if the timecode is running or not. Consequently, you need to ensure that all cameras are set to RecRun timecode.
    • The “Take” field is increased automatically after a recording stopped (you can disable this behaviour by checking “Disable increase of take number after recording has stopped”)
    • You can add multiple “media folders” to flexibly add additional media storage space
        • Define one media folder as the current “record folder”
        • Learn more about media folders under …

Note: Blackmagic capture devices do not support receiving the record flag in HANC metadata so that auto record via the HANC record flag is only possible with AJA capture devices.


  • Audio recording and playback: You can connect any audio source that is supported by macOS and include its audio in your recordings
    • The audio settings allow selecting multiple audio input devices and mixing their channels into one dual-mono audio output signal for recording and monitoring
    • The system’s audio output device is used for monitoring and playback

Note: Only devices with an input sample rate of 48 kHz are supported. You can configure most audio devices’ sample rates via the Audio MIDI Setup app built into macOS. Please avoid changing output devices while recording to avoid gaps in the audio signal.

  • The audio meters in the toolbar visualize the active audio in green (for playback), blue  (for monitoring), and grey (if the audio is muted)
  • There is a global mute button and an option to always mute live audio within the audio settings panel
  • You can add an audio delay to the audio recording to keep it in sync with the video signals


  • There are several ways to load and playback single clips or TC-synced group recordings:
    • You can load a synced group recording from the library into the source slots by double-clicking a clip from that group or with the “Load Group of Selected Clip into Source Slots” menu item (or the associated Stream Deck controller action)
    • You can load a single clip from the library into the currently selected slot with the “Load Selected Clip into Current Slot” menu item (or the associated Stream Deck controller action)
    • New recordings are loaded into their source slots for instant playback (you can disable this behavior by checking “Disable automatic loading of new clips for playback” in the recording settings)
  • Industry-standard “JKL” keyboard shortcuts let you navigate conveniently within clips:
    • Toggle playback (Space)
    • Play forwards/backward (L/J)
    • Play faster (press L/J multiple times to increase playback speed)
    • Play slower (Shift-L/Shift-J, and press multiple times to decrease playback speed)
    • Step to next/previous frame (hold K and press L or J)
  • Various controls and actions let you navigate through and edit in and out ranges:
    • Jump to next/previous in/out point (cycle through)
    • Set In / Set Out: Move in/out point of the nearest range, or add a new range after the last existing range of the clip
    • Clear nearest range, clear all ranges (only via menu or controller actions)
    • Add a new range between two existing ranges (only via menu or controller actions)
  • Ranges playback and looping options allow you to play back only the marked ranges in a group or single clip:
    • Playback (and loop) the entire clip
    • Playback (and loop) current range
    • Playback (and loop) all ranges