Join Audio · iPhone + iPad
Choose audio files or videos with sound from Files, or select videos with sound from Photos. ClipFlow automatically uses each video's audio track, lets you reorder every item, gives every neighboring pair its own gap, and can leave silence at the start and end before creating one M4A result.
Order and spacing
Build a simple sequence without opening a multitrack timeline or applying one global pause to every cut.
Open Join Audio and select at least two items: compatible audio files or videos with an audio track from Files, videos with an audio track from Photos, or a mix. Silent videos are not added, and the originals stay unchanged.
Touch and hold an item, then drag it into playback order. Tap an item to adjust its following gap or remove it. Use Start & End Silence to set silence before the first item and after the last. Every pause is adjustable from 0 through 10 seconds in 0.1-second steps; gaps start at 1 second and start/end silence at 0.
Check the order, per-gap pauses, and optional start and end silence, generate one M4A audio file, then save, share, or send the result into another compatible ClipFlow tool.
Join Audio gives every cut its own spacing control rather than forcing one setting across the whole sequence. One pair can meet with no silence while another pauses for a fraction of a second or several seconds. A separate Start & End Silence section controls optional silence before the first item and after the last, and these settings stay at the output edges when clips are reordered. After reordering the clips, review the controls for the new neighboring pairs.
When you select a video from Photos or Files, ClipFlow reads its audio track locally and adds that sound to the sequence automatically. Video frames never enter the audio-only output. The result duration is the combined duration of the selected audio tracks, configured gaps, and optional start and end silence. Core joining and M4A export use Apple media frameworks on your device, and the feature does not require ClipFlow Pro.