Restore audio clip with speed in DaVinci Resolve

[Filippo]

I have some clips where the audio was deleted, I want to restore it but the clips speed has been changed, I do option + double click to match frame and drag the audio in the timeline but that audio isn't stretched. Is there a way to restore the audio accordin to the clip speed/duration?
[Attachment 91326 - Click to enlarge]

[fred_abila]

Match Frame only brings in the source audio at its original speed. The video clip already has a retime on it, so the audio lands short or long.

Fix in Resolve:
1. Select the video clip that has the speed change, right-click, open Retime Controls (Ctrl/Cmd+R) or check Inspector → Retime, and note the speed percent.
2. Match-frame the audio (Opt/Alt+double-click) and drop it under the video.
3. Select the audio clip, open the same Retime Controls, and set the same speed percent as the video (or drag the retime handle to the video's out point).
4. Or select video and audio together, right-click → Change Clip Speed, and apply one speed to both so they stay linked.

If the clip was retimed with Optical Flow / Frame Blend, audio still needs a plain speed change (audio cannot optical-flow). For constant speed, Change Clip Speed on both is the cleanest. For speed ramps, keyframe the audio retime curve to mirror the video curve.