AVCHD to WAV Converter

Extract AVCHD Audio to WAV: What This Tutorial Covers

This walks you through pulling the audio track out of an AVCHD camcorder clip (the .mts or .m2ts files Sony and Panasonic cameras record) and decoding it to an uncompressed WAV file you can drop straight into a DAW or video editor. You'll end up with a standalone PCM .wav — no re-encoding of the video, just the soundtrack.

How to Convert AVCHD to WAV

1. Upload Your AVCHD File: Drag and drop your .mts or .m2ts clip onto the page, or click "+ Add Files" to browse. You can queue several clips and process them with the same settings.
2. Set the Audio Codec to a WAV/PCM Profile: Open "Show All Options" and under Audio Codec choose a PCM profile — PCM 16-bit Little Endian matches typical camcorder audio; pick PCM 24-bit if your source was recorded as Linear PCM and you want headroom.
3. Adjust Channel and Sample Rate (Optional): Use Audio Channel to keep the original layout or fold down to Mono/Stereo, and Audio Sample Rate to resample (leave both on Original to preserve the source). The Trim control lets you export only a segment.
4. Convert and Download: Click "Convert" and download your WAV. No sign-up, no watermark.

Walk-through: Choosing the Right PCM Profile

The single decision that matters here is the bit depth under Audio Codec, because WAV stores raw PCM samples and the profile sets how many bits represent each one:

• If your camcorder recorded Dolby AC-3 (the default on most consumer AVCHD models): the audio was already lossy-compressed at capture, so PCM 16-bit Little Endian is the sensible target. Decoding to 24- or 32-bit won't add detail the AC-3 stream never carried — it only inflates the file.
• If your camcorder recorded Linear PCM (some professional NXCAM and prosumer bodies): the source is already uncompressed, so match or exceed it — PCM 24-bit Little Endian keeps the full resolution for mixing and mastering.
• If you're feeding a specific editor or sampler: PCM 16-bit Little Endian is the most universally accepted WAV flavor; reach for 32-bit only when your tool explicitly wants float/high-bit input.

Leaving Audio Sample Rate on Original avoids an unnecessary resample — AVCHD audio is generally captured at 48 kHz, which is already the standard for video work.

Common Errors and How to Fix Them

• "The WAV file is huge" — That's expected. WAV is uncompressed, so a stereo 48 kHz 16-bit track runs roughly 11 MB per minute. If you need something small to email or archive, convert the audio to a compressed format instead — see AVCHD to MP3.
• "The exported audio is silent" — Some AVCHD clips carry the dialogue on a secondary channel or use a multichannel layout your player ignores. Try keeping Audio Channel on Original first; if a downstream tool still plays nothing, fold to Stereo.
• "My editor won't accept the WAV" — A few older samplers only read 16-bit PCM. Re-export with Audio Codec set to PCM 16-bit Little Endian rather than 24- or 32-bit.
• "Audio drifts out of sync after a few minutes" — Lossy AC-3 streams include a few milliseconds of encoder padding at the start, which can nudge sync on long clips; nudge the WAV back in your editor, or trim the leading silence.

When This Doesn't Work

Converting to WAV changes the container and decodes the audio — it does not recover quality. If the source was Dolby AC-3, the WAV is a faithful copy of the already-compressed signal, not a restored uncompressed master; no tool can rebuild detail that AC-3 discarded at capture. The conversion also can't help with copy-protected or corrupted recordings, or clips whose audio stream is damaged on the camera's card. If you only need the soundtrack from a standalone Dolby Digital file (not a full AVCHD clip), AC3 to WAV is the more direct route. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.

Frequently Asked Questions

Does converting AVCHD to WAV improve the audio quality?

No. WAV is an uncompressed container, but it can only hold whatever the source already contained. If your AVCHD audio was Dolby AC-3 (the default on most consumer camcorders), the WAV preserves that audio exactly as decoded — it cannot restore frequencies or detail that AC-3 removed during the original recording. You get a lossless copy of a lossy source, which is ideal for editing but not a quality upgrade.

What audio codec does AVCHD actually use?

AVCHD camcorders record audio as either Dolby Digital (AC-3) or Linear PCM. AC-3 is the common choice on consumer models, running at 64 to 640 kbit/s across 1 to 5.1 channels. Some professional bodies record uncompressed Linear PCM (around 1.5 Mbit/s for stereo, supporting up to 7.1 channels). Either way, this converter decodes that track to PCM and wraps it in a WAV file.

Why is my WAV file so much larger than the original clip?

WAV stores raw, uncompressed samples, so size scales with sample rate, bit depth, and channel count rather than content. A 48 kHz, 16-bit stereo track is about 11 MB per minute regardless of how quiet or busy the audio is. The original .mts is smaller because its audio (and video) were compressed. In our testing, a one-minute clip with 48 kHz 16-bit stereo audio produced a WAV close to 11 MB.

Should I pick 16-bit, 24-bit, or 32-bit PCM?

Match the source. If the recording was AC-3, 16-bit is the right target — higher bit depths only enlarge the file without adding information. If it was Linear PCM, 24-bit preserves the full resolution for mixing. Reach for 32-bit only when a specific tool requests high-bit or float input.

Will the WAV play on any device or editor?

PCM WAV is one of the most broadly supported audio formats. It opens in Audacity, Adobe Audition, Pro Tools, Logic, and other editors, and plays in standard media players on Windows, macOS, Linux, Android, and iOS. That universal compatibility is the main reason to extract to WAV instead of leaving audio locked inside the AVCHD container.

Can I export only part of the clip instead of the whole audio track?

Yes. The Trim control lets you set a start point and duration so the WAV contains just the segment you need, which is handy for grabbing a single line of dialogue or a sound effect from a long recording without exporting and cutting the full track afterward.