AUDIO NOT LOOPING SEAMLESSLY / AUDIO STUTTER

Primary Causes of Audio Loop Glitches

• 1. Streaming from Disk on Looping Clips: If an Audio Clip's Load Type is set to Streaming, disk I/O bottlenecks can cause micro-buffer underruns right at the loop point, creating a split-second pause.
• 2. MP3 Padding Silence: The MP3 format inherently adds a tiny buffer of silence (20-50ms) to the beginning and end of encoded files. MP3 files can never loop seamlessly!
• 3. Non-Zero Crossing Waveforms: If the audio file waveform ends at a non-zero amplitude before jumping back to the start, the speaker cone pops.

Step-by-Step Fix

1. Use WAV or OGG Formats (Never MP3 for Loops):

   Re-export your audio tracks from your DAW in uncompressed .WAV or raw .OGG format.

2. Adjust Audio Clip Import Settings in Unity:

   Select the Audio Clip in your Project Assets view and set:
   • Load Type: Decompress On Load (for short loops under 15 seconds) or Compressed In Memory (for longer background music).
   • Preload Audio Data: Checked.
   • Compression Format: Vorbis (Quality 70-80%).

3. Ensure AudioSource.loop is Enabled in C#:
   Copy Code

   audioSource.loop = true;
   audioSource.clip = seamlessEngineClip;
   audioSource.Play();

Related Audio Guides & Errors