Threads PCM (uncompressed) in MP4
PCM (uncompressed) in MP4 is not in threads's documented upload list. Convert before uploading.
Quality impact not documented · PCM inside MP4 is not in threads's documented upload list.
non-standard for upload; some FFmpeg builds mux it but it is rare. Negative claim inferred from the absence of pcm/mp4 in threads's documented media list. No transcoding claim made.
Choose a compatible conversion →ISO/IEC 14496-12 (ISO Base Media File Format) (verified 2026-09-18) · Threads Publishing Reference (verified 2026-09-18)
Frequently asked
Does Threads support PCM (uncompressed) in MP4?
PCM (uncompressed) in MP4 is not in threads's documented upload list. Convert before uploading. Koldflux's compatibility engine reaches this verdict from sourced platform documentation.
Should I convert PCM (uncompressed) in MP4 for Threads?
PCM inside MP4 is a non-standard mux; convert to H264 inside MP4 for safe upload to threads.
Will Threads re-encode my file?
PCM inside MP4 is not in threads's documented upload list.