How to export a clear WAV file for a remote interview

You have an interview recording to send, but you want it to sound clear and professional. Exporting as WAV can preserve the audio without MP3 compression, but it cannot fix noise or distortion that is already in the recording.

Use TooLab's Audio Editor to trim unwanted sections, make gentle fades, and export a WAV file in your browser. These steps are for a recording you need to send. A WAV export does not change the microphone or sound used during a live interview call.

Prepare and export the recording

1. Open the Audio Editor and load your interview recording. Listen to the source once before editing so you know what the original sounds like.
2. Trim only the extra material, such as a long pause before you begin, a false start, or conversation after the intended ending. Keep natural pauses between phrases so your speech does not sound rushed.
3. Listen around each cut. If a cut sounds abrupt, add a short fade where it helps. Avoid fades that remove the start or end of a spoken word.
4. Keep speed and pitch unchanged unless you have a specific reason to adjust them. Changes can make your voice sound unnatural, and they cannot make a noisy or clipped recording clearer.
5. Export the edited audio as WAV. The editor can export WAV or MP3. Choose WAV for a submission that requests it or when you want to avoid MP3 compression, then save the exported file somewhere you can find it.

If your project has more than one clip or track, play the full edited result before exporting. Check that the clips are in the intended order and that none of your answer is missing.

Choose the right export

Use WAV when sound quality matters more than file size

WAV is a file format that can store uncompressed audio. A standard PCM WAV avoids the data loss introduced by MP3 encoding, which makes it a sensible choice for interview samples and voice recordings that will be reviewed or edited again. It does not add detail that the microphone never captured, though. If the source is muffled, noisy, or distorted, exporting it as WAV preserves those problems too.

Use MP3 only when a smaller file is more important

MP3 files are usually much smaller and can be easier to attach to a message. They use lossy compression, which removes some audio information. If the interviewer specifically requests WAV, do not send MP3 instead. If there is no format requirement and the file size is a problem, ask whether MP3 is acceptable before converting it.

Keep the original recording

Save the original separately from the edited WAV. That gives you a clean starting point if you make a cut too tight or export the wrong version. WAV file size depends on factors such as the recording length, sample rate, bit depth, and number of channels. A one-minute, uncompressed, 44.1 kHz, 16-bit mono recording is about 5.3 MB, while stereo at the same settings is about 10.6 MB.

How to fix an export that does not sound clear

1. Listen to the exported file from start to finish. Do not rely only on the editor's timeline or preview. Open the saved WAV in a player and check that it plays through, has the full answer, and does not have a sudden cut at either end.
2. Compare it with the original. Play the source and export at a similar volume. A difference in playback volume can make one version seem worse even when the audio itself has not changed much. If the WAV sounds different in every player, export it again and check that you selected WAV rather than MP3.
3. Check for cuts that are too tight. If a word begins abruptly or a breath disappears unnaturally, return to the edit and leave a little more audio around it. Use a short fade at the cut if it sounds like a click, but do not fade through the spoken word.
4. Check the original for clipping or noise. Clipping sounds harsh or cracked, especially on loud syllables. A steady hum, room echo, or fan noise may also be present in the source. Exporting as WAV will not remove these problems. If you can record again, move to a quieter room and speak at a steady distance from the microphone.
5. Retest the microphone before recording again. The Microphone Test shows an input meter and waveform while you speak, and lets you make and play back a short recording. Use it to check whether the problem is present before you edit the interview audio.

Check the file before sending it

Confirm that the saved file ends in .wav, then play it from beginning to end. Check that your voice is easy to hear, the answer starts and ends where you expect, and the file is not silent or cut off. If the interviewer gave you a maximum file size or requested a particular audio format, follow those requirements first.

Your audio stays on your device while you edit it in the browser. For a clear result, make small edits and keep the untouched original until the interviewer confirms the file arrived and plays correctly.