MTS to WAV Converter

How to Convert MTS to WAV Online

1. Upload Your MTS File: Drag and drop or click "Add Files" to select MTS or M2TS files straight off your AVCHD camcorder's SD card or BDMV/STREAM folder. Sony Handycam, Panasonic Lumix, and Canon Vixia footage all work. Batch is supported — convert an entire shoot in one pass.
2. Pick the WAV PCM Encoding: The output container is WAV; choose the PCM variant — PCM 16-bit little-endian (the standard CD/DVD audio format), PCM 24-bit (extra headroom for editing), PCM 32-bit, PCM 16-bit big-endian, or PCM A-law / mu-law for telephony and legacy systems.
3. Set Sample Rate, Channels, and Trim: Pick a sample rate (8 kHz up to 48 kHz — match the source's 48 kHz when known to skip resampling), choose mono or stereo, and optionally trim a section using start time + duration in HH:MM:SS.sss format. Useful for pulling a single take out of a long camcorder clip.
4. Convert and Download: Click Convert. The video track is discarded, the audio is decoded from AC-3 to PCM, and you download the WAV individually or as a ZIP — no sign-up, no watermark.

Why Convert MTS to WAV?

MTS (and its M2TS sibling) is the AVCHD container Sony, Panasonic, and Canon camcorders write to SD cards and internal storage. The video inside is H.264; the audio is almost always Dolby AC-3 at 48 kHz, two- or 5.1-channel. WAV is uncompressed PCM audio — every sample stored verbatim. Common reasons to extract MTS audio as WAV:

• DAW editing of camcorder dialogue and ambience — Audacity, Pro Tools, Logic Pro, Reaper, Adobe Audition, Ableton Live, and DaVinci Resolve Fairlight all import WAV cleanly. AC-3 inside MTS is awkward — most DAWs don't decode it natively, or scrubbing is sluggish. Pre-converting to WAV gives the editor raw PCM and smooth playback.
• Wedding and event videography post — Weddings, recitals, and sports events shot on AVCHD camcorders often need the audio pulled out for noise reduction, music sync, or replacement. WAV is the lossless intermediate.
• 5.1 surround handling — Many MTS clips are 5.1-channel AC-3. Convert to stereo WAV for podcast-style delivery, or keep multichannel WAV for surround mixing in a video timeline.
• Transcription and subtitling pipelines — ASR services (Whisper, Deepgram, Google Speech-to-Text, Otter.ai) prefer WAV. Camcorder interview footage converts to a clean WAV for accurate transcripts.
• Salvaging audio from corrupted MTS — When an MTS file's video stream is damaged but the audio is intact, extracting to WAV recovers the usable audio asset.
• Archival of master sound — WAV preserves audio bit-for-bit across re-saves. AC-3 is lossy, so re-encoding loses quality each pass. Master in WAV; deliver in your final compressed format.

MTS vs WAV — Format Comparison

WAV PCM Encoding Quick Guide

Frequently Asked Questions

Does this extract just the audio from the MTS?

Yes. The H.264 video track is discarded and only the audio is saved as WAV. The output is audio-only — there is no video in a WAV file. If you also need the video in a different container, see MTS to MP4 for video conversion.

What audio codec is inside an MTS file?

AVCHD camcorders almost always record Dolby AC-3 (Dolby Digital) at 48 kHz, in stereo or 5.1-channel. Some higher-end models can record uncompressed PCM as well. The conversion decodes whichever is present and writes PCM into the WAV.

Will 5.1 surround audio be preserved?

If you select stereo output, the 5.1 channels are downmixed to a standard two-channel stereo WAV (front L/R with center and surround folded in at standard levels). For a true multichannel WAV that keeps all six channels separate, choose a multichannel-capable downstream tool — most editors handle the standard 2.0 stereo result fine for typical podcast/music workflows.

What sample rate should I pick?

Match the source. AVCHD audio is recorded at 48 kHz, so picking 48 kHz avoids resampling. 44.1 kHz works if you're targeting an audio CD or matching a 44.1 kHz music project. Lower rates (16 or 22 kHz mono) are fine for speech-only delivery if file size matters.

Why is the WAV so much bigger than the MTS?

The MTS file is mostly video (H.264 video data dominates the file size). The audio inside is a small fraction — a few hundred kbps of AC-3. When you discard the video and decode AC-3 to uncompressed PCM, the audio data expands by roughly 3-5×, but the result is dramatically smaller than the original MTS overall because the video bulk is gone. A 4 GB MTS clip typically yields a 100-300 MB WAV.

Will converting from AC-3 to WAV improve audio quality?

No — quality is capped by the source. AC-3 is a lossy codec, so it has already discarded inaudible data during recording. Decoding to WAV unwraps it into uncompressed PCM but cannot recover what AC-3 threw away. The benefit is preventing further quality loss during editing and getting a format your DAW handles natively.

Can I trim part of an MTS and save just that section as WAV?

Yes. Use the trim section to enter a start time and duration. Both accept seconds (12.5) or HH:MM:SS.sss format (00:01:30.500). Useful for pulling a single interview answer out of a long camcorder clip, or extracting one song from a recital recording without exporting the full hour.

Should I convert to WAV or MP3 from MTS?

Convert to WAV when you'll edit, master, transcribe, or archive — WAV is uncompressed and every editor handles it natively. Convert to MTS to MP3 when you want a compact deliverable for sharing, listening on the go, or web upload — MP3 is roughly 10× smaller than WAV at typical bitrates.