Audio guide: WAV conversion, trimming, merging and volume
Process supported WAV or MP3 files, choose sample rate and channels, and export PCM WAV. Check trim boundaries, clipping and decoded-memory limits.
Choose an operation for your task
Process supported WAV or MP3 files, choose sample rate and channels, and export PCM WAV. Check trim boundaries, clipping and decoded-memory limits.
| Your task | Where to start |
|---|---|
| Keep a recording excerpt | Trim supported audio and listen around both clip boundaries |
| Join sound clips | Set order, sample rate and channel policy before merging |
| Increase audio level | Increase gain gradually and check clipping warnings |
Work in order and retain the original
Choose trim points with enough context, then listen across the boundaries. For merging, verify file order and transitions before adjusting volume. Raising gain can clip peaks even when most of the recording is quiet; reducing gain later does not restore clipped samples. Keep the original takes for another edit.
Trim a short representative interval and compare its duration and both channels before processing a longer recording.Separate processing success from acceptance
Listen on the destination device, check silence and joins, and inspect file size. A WAV extension alone does not prove a correct RIFF header or usable samples.
Before you finish
Expand a tool below for its steps, options and limits. Choose the tools needed for your task; you do not need to use every one.
- Listen on the destination device, check silence and joins, and inspect file size. A WAV extension alone does not prove a correct RIFF header or usable samples.
- Reopen the download and compare it with the example and the meaning of the input.
- When an input exceeds the stated boundaries, retain it and split the task or use a suitable processor; renaming an extension does not make it compatible.
References
- Audio — format and implementation reference
Reference for format and processing boundaries. The operating reference states the actual supported scope of this site.
Tools in this category
Expand a tool to see its steps, options and supported formats, then open its workspace.
Audio to WAVConvert supported MP3 or WAV audio to 16-bit PCM WAV, with optional rate and channel settings.
Make a 16-bit PCM WAV from a supported MP3 or WAV file. Keep the source rate and channels, or choose output settings for the app that needs the file. Listen before downloading.
Steps
- Choose one local .wav or .mp3 file.
- Keep the source sample rate and channels, or set the output rate and mono/stereo option needed by your destination app.
- Convert, check the output details and listen to the WAV, then download the file.
Available options
- Output sample rate (blank preserves input)
- Enter as needed
- Output channels
- Keep input channels · Mono · Stereo
Capabilities and limits
- One WAV or MP3 file up to 30 MiB; decoded float samples up to 80 MiB. Supported input is PCM/IEEE WAV or frame-valid MP3 the browser can decode. Output is 16-bit PCM WAV at 8–192 kHz, with up to 8 input channels.
- MP3 quality already lost to compression cannot be recovered by exporting WAV. A changed sample rate may alter sound; preview the output.
Trim audioSelect one part of a WAV or MP3 recording and download the excerpt as WAV.
Listen to one local WAV or MP3, mark the start and end, then export only that sample-aligned segment as 16-bit PCM WAV.
Steps
- Choose one local WAV or MP3 and listen to it in the source player.
- Pause or scrub to the wanted points and mark start/end, or type their times in seconds. Leave end blank to keep the rest.
- Trim, check the exact sample-aligned range and play the saved excerpt, then download the WAV.
Available options
- Start (seconds)
- 0
- End (seconds; blank uses duration)
- Enter as needed
- Output sample rate (blank preserves input)
- Enter as needed
- Output channels
- Keep input channels · Mono · Stereo
Capabilities and limits
- One WAV or browser-decodable MP3 file up to 30 MiB; decoded float samples up to 80 MiB. Output is 16-bit PCM WAV at 8–192 kHz; up to 8 input channels. This tool does not detect silence, add fades, edit multiple sections, or export MP3.
Merge audioPut recordings or sound clips in order and join them into one WAV file.
Join at least two WAV or browser-decodable MP3 clips into one continuous PCM WAV. Preview a source, move clips up or down, and check the exact join order before downloading. Processing stays in this browser.
Steps
- Add at least two local WAV or MP3 clips. Listen to any source and use the arrows to set top-to-bottom playback order.
- Leave sample rate blank to use the first clip's rate. For clips with different channel counts, choose Mono or Stereo before merging.
- Check the joined time ranges, listen to the merged WAV, then download it.
Available options
- Output sample rate (blank uses first clip)
- Enter as needed
- Output channels
- Keep input channels (same count in every clip) · Mono · Stereo
Capabilities and limits
- 2–20 WAV or browser-decodable MP3 clips; 30 MiB input in total and 80 MiB decoded source samples. PCM16 WAV output; 8–192 kHz and up to 8 input channels. Clips join at hard cuts without fades.
Adjust audio volumeRaise or lower the volume and save a new WAV file.
Make one quiet WAV or browser-decodable MP3 clip louder, or lower its level, and save a new 16-bit PCM WAV. Listen before and after, choose a multiplier, and check clipping before downloading.
Steps
- Choose one local WAV or MP3 and listen to the original. The working copy stays in this browser.
- Choose a volume multiplier or enter one from 0 to 4, then select “Adjust volume”.
- Compare peak levels and clipping, listen to the saved WAV, then download it.
Available options
- Volume multiplier (0–4×)
- 1
Capabilities and limits
- One WAV or browser-decodable MP3 up to 30 MiB and 80 MiB decoded samples. Gain 0–4×; 16-bit PCM WAV output, 8–192 kHz and up to 8 channels. This is uniform amplification, not loudness normalization or compression.