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Reagent can read and change REAPER’s audio device, sample rate and buffer size. REAPER only picks up a new device when it starts, so Reagent quits REAPER, changes the setting and opens REAPER again. Your projects come back in their tabs. You need REAPER open with the Bridge running.

What You Can Ask For

You can also change the device in Settings → REAPER → Audio device. When REAPER is closed, the change is saved and applies the next time REAPER starts. Changing the project sample rate doesn’t restart REAPER.

What Happens When REAPER Restarts

Reagent always asks first, in every permission mode, including Full access. The card shows:
  • what will change, before and after
  • that REAPER will quit and reopen, usually in about 10 seconds
  • the projects you have open
Each project with unsaved changes needs a choice before you can continue: Then Reagent saves the projects you chose, quits REAPER, changes the setting and opens REAPER again. It reopens your projects, makes the one you were working in active, and checks that REAPER really opened the device, rate and buffer you asked for. Some audio interfaces keep their own buffer setting; if REAPER uses a different value, Reagent tells you and offers to undo the change. While REAPER restarts:
  • Playback stops, and REAPER’s undo history starts fresh.
  • Don’t edit in REAPER until it’s back.
  • Reagent’s other REAPER actions wait until it’s back.
You can cancel until REAPER starts to quit. After that, the restart always finishes, even if you stop the chat, and Reagent tells you how it went.

If REAPER Shows a Window

If REAPER hasn’t quit after 20 seconds, it may be showing a window that needs your answer. Reagent asks you to Keep waiting, Force quit REAPER or Cancel. Force quit always asks you to confirm first, because unsaved changes in REAPER are lost. If REAPER takes longer than usual to start again, for example because of a security prompt or a message about a missing file, Reagent tells you what it can see. Answer the window in REAPER, and Reagent continues. Reagent never clicks anything in REAPER for you. If Reagent itself closes during a restart, it shows a notice the next time it opens. From there you can open REAPER or undo the change.

Undoing a Change

Every change is recorded. Ask Reagent to undo it, even in a new chat (“undo the last audio change”). Undoing a device, rate or buffer change restarts REAPER again, with the same card.

Windows

On Windows, Reagent shows REAPER’s current device, sample rate and buffer size. Changing them from Reagent isn’t available on Windows yet. Changing the project sample rate works on Windows too.