Working with audio
Reeltime can receive audio input signals from multiple connected audio devices and record the audio in sync with your video recordings. The input signals are mixed down to one main audio track, which you can include in any recordings, and simultaneously output to one audio output device for live audio monitoring or audio playback:
- If you have an input slot set to live slot mode, you can monitor the main live audio.
- If you select a library slot or an input slot set to playback slot mode, you can hear its audio playback.
Read how to set up audio devices in the article Setting Up Audio I/O Interfaces.
Mix down multiple audio input signals into one main audio track#
After setting up your audio devices, you can enable multiple channels from multiple connected audio devices and mix them into one main audio output track.
- Reeltime’s audio settings allow selecting multiple audio input devices and mixing their channels into one dual-mono audio output signal for recording and monitoring:
- The “Input Devices” list displays all audio devices connected to your machine and lets you enable all channels you want to use. Each channel has an individual volume slider.
- The “Input Delay” setting allows you to add an audio delay to the audio recording to keep it in sync with the video signals.
Audio settings with multiple audio inputs
Main audio output#
Reeltime’s main audio is one 48 kHz audio track, a mixdown of all enabled audio input channels. You can output the main audio to one connected audio output device connected to your machine, e.g., an audio interface. The main audio is also included in the internet streams to RePro Stream and Autodesk FlowCapture.
- For audio monitoring and playback, you can choose an output device or use the system’s audio output device.
- 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 are menu items (in the audio menu) and associated Stream Deck controller actions for muting the live audio or all audio, as well as an associated global mute toolbar button.
SDI-embedded audio input and output#
Reeltime can capture audio embedded in incoming SDI signals and embed the main audio into outgoing SDI signals. Embedded audio is handled through the Core Audio drivers provided by AJA and Blackmagic, so the embedded audio device appears in the audio settings like any other audio device.
- To capture embedded channels, enable the AJA or Blackmagic audio device in the “Input Devices” list and mix its channels into the main audio track.
- To embed the main audio into an SDI output, select the AJA or Blackmagic audio device as the output device.
For AJA devices, the AJA Control Panel must route host audio for capture and playback. See Troubleshoot issues with embedded audio via AJA video I/O devices.
Audio source selection#
The audio source slot for the main audio can either be an input slot or a library slot:
- The audio source selection follows the last selected input slot or library slot:
- By default, the “Automatic Audio Source Selection” in the audio menu is enabled
- Alternatively, you can pin the audio source to a specific input slot or library slot:
- If you disable the “Automatic Audio Source Selection,” you can choose from all configured input slots or library slots to set them as audio source via a sub-menu.
Audio source pinned to slot “A”
For all audio menu items there are associated Stream Deck controller actions. For example, you can use the “Enable/disable Automatic Audio Source” action to quickly change from
- enabled = Always hear the input slot or library slot that you select,
- disabled = Pin the audio source to the currently selected input or library slot.