TikTok Audio Requirements: Format, Bitrate, and Quality

TikTok processes audio aggressively — video uploads go through multiple stages of compression before reaching viewers. Understanding this pipeline helps you upload audio that survives the compression and sounds good on the platform.

TikTok's Audio Pipeline

When you upload a video to TikTok, the platform transcodes the video and audio to its internal format. TikTok uses AAC audio typically at 128 kbps for standard videos. The key implication: any audio quality above this threshold does not translate to the viewer — but audio quality below this threshold gets compressed further, losing additional quality. Upload audio at 128 kbps AAC or higher to give TikTok's transcoder a clean source.

Upload Format Recommendations

For video uploads: MP4 container with AAC audio at 256 kbps stereo, 44.1 kHz. H.264 video codec, 1080p or higher resolution. TikTok also accepts MOV files from iPhone, which typically contain AAC audio at 128–256 kbps. The audio inside your upload video should be as clean and high-quality as possible before TikTok's transcoding degrades it.

Loudness and Volume

TikTok applies its own loudness normalization, though the target is less publicly documented than Spotify or YouTube. Aim for -14 to -16 LUFS integrated loudness with peaks below -1 dBFS. Heavily compressed or clipped audio may sound fine on desktop previews but becomes harsh when played through phone speakers at higher volumes — a common experience on TikTok.

Sound Design Tips for TikTok

TikTok's audience predominantly listens on phone speakers, not headphones. Audio that sounds good on phone speakers has emphasized midrange (voice frequencies 500 Hz – 3 kHz), reduced sub-bass (below 80 Hz, which phone speakers cannot reproduce), and clear articulation. Apply a high-pass filter at 80 Hz and a slight presence boost (around 3–5 kHz) when mixing audio specifically for TikTok content.

Extracting TikTok Audio

If you downloaded a TikTok video and want the audio file, convert the MP4 to MP3 using AudioUtils. The extracted audio will reflect TikTok's compressed output quality — approximately 128 kbps AAC decoded to MP3.