Gapless playback
Reviewed · 3 min read
Gapless playback plays consecutive tracks without adding silence between them. It preserves pauses in the recording without overlapping songs. On a live album, applause can continue from one track to the next without a break.
On this page
Gapless, crossfade, and silence removal
| Feature | Effect on the transition |
|---|---|
| Gapless playback | Joins tracks without adding a pause. |
| Crossfade | Overlaps and blends the end of one song with the start of another. |
| Silence removal | Skips quiet portions of the recording. |
Apple's crossfade documentation describes fading in the next song while the previous one fades out. That overlap can obscure an album's original transition. Silence removal can cut an intentional pause or quiet introduction.
Turn off crossfade and silence removal when testing gapless playback, if your player offers them.
Why a player adds a pause
The player must open and decode the next file before the current track ends. If it starts too late, you hear a gap.
MP3 encoding can add delay and padding at track boundaries. The player needs to read the timing information and exclude that padding from playback. LAME's technical FAQ describes the mechanism. Support varies between encoders and players.
A change in sample rate or channel count can also require the player to reconfigure its audio output. Two supported files may play individually but pause when played back to back.
Silence already in the file
A rip or export may contain silence at the start or end of each track. Gapless playback preserves it. Converting FLAC to ALAC preserves that silence too.
Check the same tracks in another player before editing them. Work on copies: trimming every quiet ending can remove room ambience, fading notes, or deliberate pauses.
Test two consecutive tracks
- Choose two tracks from an album you know should play continuously. Download both files fully.
- Turn off shuffle and play them in album order. Let the first track finish; pressing Skip does not test the natural transition.
- Play the same files in another player with the same volume and effects settings. Note whether you hear silence, a click, an overlap, or a repeated fragment.
- Try another output, such as wired headphones instead of Bluetooth. Record each file's sample rate and channel count, along with the app and output where the problem occurs.
If you contact support, include those details and identify the two tracks.
Gapless playback in Prismatic Music
Prismatic Music on iPhone and iPad supports gapless playback for local albums. The next track's decoded sample rate and channel count must match the active playback format. Switching from 44.1 kHz stereo to 96 kHz stereo, for example, can cause a pause while the next track loads.
Import an album from Files to try it. Local playback is free, with visual ads and no inserted audio ads. Free and Prismatic Pro lists the plan differences.
See supported formats for file compatibility. If a track will not play at all, use the offline playback troubleshooting guide.
Common questions
- Does gapless playback remove silence already recorded in a song?
- No. It prevents the player from adding a new gap. Silence contained in the original recording should remain unless a separate silence-removal feature changes it.
- Is crossfade the same as gapless playback?
- No. Crossfade overlaps the end of one song with the beginning of another. Gapless playback keeps their timing intact and joins them without an extra pause.
- Can MP3 play gaplessly?
- Yes, when the encoding includes suitable delay and padding information and the player handles it correctly. The format extension alone does not guarantee a seamless transition.