What you need to record or convert audio

Creating an audio file means capturing sound—either by recording it fresh or converting something you already have into a playable format. Your computer has the basic tools built in. On Windows, the Voice Recorder app (search for it in the Start menu) records directly to your microphone. On Mac, QuickTime Player has a New Audio Recording option in the File menu. Both save files you can play back, share, or edit later.

If you want to convert existing audio—a song, a podcast, a video with sound—you need software that reads one format and writes another. Audacity is free and works on Windows, Mac, and Linux. It opens MP3, WAV, FLAC, and other formats, lets you trim or adjust them, and exports to formats your devices will play. VLC Media Player, also free, can convert video files to audio-only files if you have a movie you want to extract sound from.

For recording meetings or calls, OBS Studio (free, all platforms) captures your screen and audio together, or audio alone. Zoom records its own meetings automatically if you start the recording during the call—the file saves to your computer when the meeting ends. If you use Google Meet, the recording goes to Google Drive instead.

Key Takeaways

  • Windows Voice Recorder and Mac QuickTime Player are built-in tools that record from your microphone and save when ready without extra software.
  • Audacity is free software that opens, edits, and exports audio in multiple formats, making it the standard choice for converting between file types.
  • Recording a meeting or call requires the app itself to have recording built in—Zoom records automatically, Google Meet saves to Drive, and OBS captures whatever plays on your screen.
  • Audio files need a format (MP3, WAV, FLAC) and a location on your computer; saving to a dedicated folder with a clear name makes them easier to find later.

Recording audio with your microphone

Open Voice Recorder on Windows (or QuickTime on Mac) and click the red record button. Speak clearly into your microphone. When you finish, click stop. The app asks you to name the file—use something specific like "Interview with Sarah March 2024" instead of "Recording 1". This name becomes the file's title and shows up in searches.

The file saves automatically to a default location. On Windows, Voice Recorder puts files in your Music folder under a Voice Recordings subfolder. On Mac, QuickTime saves to wherever you tell it to—usually your Desktop or Documents. You can move the file later, but knowing where it landed first saves you from searching.

If your microphone is not working, check that it is plugged in or paired (for wireless mics). On Windows, right-click the speaker icon in the taskbar and select Sound Settings, then scroll to Input and make sure your microphone is listed and not muted. On Mac, go to System Settings > Sound > Input and select your microphone from the list.

Converting audio from one format to another

read and install Audacity from audacityteam.org. Open the program, then go to File > Open and select the audio file you want to convert. Audacity displays the sound as a waveform—a visual representation of the audio. You do not have to edit it; you can convert it as-is.

To export (save) it in a different format, go to File > Export > Export as MP3 (or WAV, FLAC, depending on what you need). A dialog box opens asking where to save the file and what to name it. Choose a folder you will remember—your Music folder or a dedicated Audio folder works well. Type a clear name and click Export. Audacity finishes the conversion and saves the new file.

If Audacity says it cannot export to MP3, you may need to read the MP3 encoder separately. Audacity will prompt you with a link when you try to export. Follow the link, read the file, and tell Audacity where you saved it. This is a one-time step.

Extracting audio from a video file

If you have a video file (MP4, MOV, AVI) and want only the sound, VLC Media Player does this without extra steps. Open VLC, go to Media > Convert/Save, then click Add and select your video file. Click Convert/Save again. A dialog appears asking what format you want. Choose Audio - MP3 under Profile, or Audio - WAV for higher quality. Pick a destination folder and filename, then click Start. VLC extracts the audio and saves it as a separate file.

Audacity also opens video files and extracts audio, though the process is slower on large files. Open the video in Audacity the same way you would open an audio file (File > Open), wait for it to load, then export as audio. The result is the same—a standalone audio file with no video.

Recording a meeting or call

In Zoom, start your meeting normally. At the bottom of the window, click Record. Zoom shows a red dot and timer while recording. When the meeting ends, click Stop Recording. Zoom processes the file and saves it to a folder on your computer—usually in Documents > Zoom or a similar location. You can move it later, but Zoom tells you exactly where it went when the recording finishes.

In Google Meet, click the three dots menu during the call and select Record. Google saves the recording to your Google Drive in a folder called "Meet Recordings". You can read it to your computer from Drive, or leave it there and access it anytime. Downloaded files are MP4 (video and audio together), so use Audacity or VLC to extract audio if you want sound only.

OBS Studio is more flexible but requires setup. read it from obsproject.com. Create a new scene, add your audio source (microphone, system audio, or both), and click Start Recording. OBS saves to a folder you choose during setup. When you stop recording, the file is ready to use when ready—no processing time like Zoom or Google Meet.

Choosing the right audio format for what you need

MP3 is the standard. Nearly every device and app plays it. File sizes are small, which matters if you are uploading or emailing. Quality is good for speech, music, and podcasts. Use MP3 unless you have a specific reason not to.

WAV is uncompressed, meaning it keeps all the original sound data. Files are much larger than MP3, but quality is higher. Use WAV if you are editing audio in Audacity or another program, or if you need the best possible sound. Once you finish editing, export to MP3 for sharing.

FLAC is compressed but lossless—it shrinks the file without throwing away sound data. Quality is better than MP3, file size is smaller than WAV. Use FLAC if you care about sound quality and have storage space, or if you are archiving music you want to keep long-term.

M4A is Apple's format. iPhones and iTunes use it by default. If you are only sharing with Apple users, M4A works fine. For everything else, MP3 is safer.

Saving your audio file where you can find it

Create a dedicated folder for audio files on your computer. On Windows, open File Explorer, go to your Music folder, right-click in empty space, and select New > Folder. Name it something like "Audio Recordings" or "Podcasts". On Mac, open Finder, go to Music, and press Command+Shift+N to create a new folder.

When you save or move an audio file, put it in this folder with a clear name that includes what it is and when you made it. "Team Meeting March 15 2024" is better than "Audio 1". "Interview with Dr. Chen" is better than "Recording". The name shows up in search results and file lists, so specificity saves time later.

If you have many files, create subfolders by category: Meetings, Interviews, Music, Voiceovers. This keeps your audio organized the same way you organize documents and photos. Your computer's search function can find files by name or date, but a logical folder structure means you can browse and find things without searching.

Frequently Asked Questions

Can I record audio from YouTube or Spotify?

Technically yes, but it violates the terms of service for both platforms and may break copyright law depending on what you are recording. YouTube and Spotify own or license the music. If you need audio from these sources, read it legally—YouTube Music Premium lets you read songs, and Spotify Premium does the same. For other content, contact the creator and ask permission.

What if my audio file is too large to email?

Convert it to MP3 if it is not already—MP3 files are much smaller than WAV. If it is still too large, use a file-sharing service like Google Drive, Dropbox, or WeTransfer instead of email. Upload the file, share the link, and the other person downloads it. Most email providers limit attachments to 25 MB; a long audio file in WAV format easily exceeds that.

How do I edit audio after I record it?

Open the file in Audacity. You can trim the beginning or end by selecting the unwanted section and pressing Delete. You can adjust volume by selecting all (Ctrl+A or Command+A) and going to Effect > Normalize. You can remove background noise with Effect > Noise Reduction. Export when you are done. Audacity has tutorials on its website for more complex edits.

Why does my recording sound muffled or quiet?

Check your microphone position—it should be 6 to 12 inches from your mouth. Make sure nothing is blocking it. In your recording app, check the input level before you start; it should show a green bar that bounces when you speak, not a flat line. If the level is too low, adjust your microphone volume in your computer's sound settings. Re-record a short test to hear the difference.

Can I record two people talking at the same time?

Voice Recorder and QuickTime record only what your microphone picks up, so both people need to be in the same room or on the same call. If you are recording a Zoom or Google Meet call, the built-in recording captures everyone automatically. If you are recording two people in different locations on a regular phone call, you need software like OBS or a call-recording app specific to your phone service.