Perfect — to speed up the video by 1.5x, you need to adjust both video and audio playback speeds.
Here’s your updated command:
ffmpeg -hwaccel cuda -i input.mov -filter_complex "[0:v]setpts=PTS/1.5[v];[0:a]atempo=1.5[a]" -map "[v]" -map "[a]" -r 24 -c:v h264_nvenc -preset fast -cq 28 -c:a aac -b:a 128k output.mp4
setpts=PTS/1.5: Speeds up the video by 1.5x.
atempo=1.5: Speeds up the audio by 1.5x (works for values between 0.5 and 2.0).
-filter_complex: Applies both filters together.
-map "[v]" -map "[a]": Ensures the filtered streams are used.
-r 24: Outputs at 24fps.
-c:v h264_nvenc: NVIDIA GPU encoding.
-preset fast -cq 28: Fast encoding with decent quality.
-c:a aac -b:a 128k: Compresses audio.
Let me know if you also want to trim, resize, or batch-convert files.