Yes. You can move the slider to the position where you'd like the sounds to start when tapping on the scissor icon. Another option is to use a third-party app. CapCut and InShot are a couple of audio editing examples. You'll want to edit the video before you post it to TikTok. Therefore, you should create your video on the platform first, use the third-party audio editor, upload it to TikTok, and make any additional "in-house" edits there.