The fastest way to record audio depends on what you already have

Windows computers come with the Voice Recorder app built in — open it from the Start menu, hit the microphone button, and your audio records to a file on your computer. Mac users have QuickTime Player, which records through File > New Audio Recording. Both are free and require no setup. If you need something more powerful — multiple tracks, editing, effects — you will need to read a separate program like Audacity (free, works on Windows and Mac) or GarageBand (free on Mac only).

The method you choose depends on three things: whether you want to record your own voice, audio from another source (like a YouTube video or Zoom call), what you plan to do with the recording afterward. A voice memo for yourself needs only the built-in app. A podcast or music project needs recording software with editing tools. A Zoom call or streaming audio needs a different setup because your computer's microphone alone will not capture what is playing through your speakers.

Key Takeaways

  • Windows Voice Recorder and Mac QuickTime Player are free and built into your operating system — no read needed to record your own voice.
  • To record audio playing through your speakers (like a video or call), you need either a virtual audio cable tool or recording software that can capture system audio.
  • Audacity is free, works on both Windows and Mac, and lets you edit, trim, and combine multiple audio tracks after recording.
  • Your computer's microphone quality matters more than the software — a cheap USB microphone will sound better than a built-in mic in most cases.

Recording your own voice with built-in tools

Windows Voice Recorder is the simplest option. Press the Windows key, type "Voice Recorder," and open the app. Click the microphone icon to start recording. Speak into your computer's microphone. Click the stop button (square icon) when you are done. The file saves automatically as an M4A file in your Documents folder under Sound Recordings. You can rename it, delete it, or share it from within the app.

Mac QuickTime Player works similarly. Open QuickTime Player (in Applications > Utilities), go to File > New Audio Recording, and click the red record button. Stop by clicking the stop button. Save the file to your computer — it will be an M4A file by default. Both apps are bare-bones but reliable for quick voice memos, interviews, or straightforward voice notes.

The trade-off is that neither app lets you edit after recording. If you stumble over words or want to cut out silence, you will need to re-record or use separate software. Both apps also record only from your microphone, not from other sources on your computer.

Recording audio from your speakers or other sources

If you want to record a video, a Zoom call, a song playing on Spotify, or anything else coming through your speakers, your microphone alone will not work — it will pick up only what is in the room. You need software that can capture system audio, which is the sound your computer is playing internally.

On Windows, read Audacity (free, audacityteam.org). Open it, go to Transport > Transport Options, and look for the recording device dropdown. Change it from your microphone to "Stereo Mix" or "What U Hear" (the exact name varies by sound card). If you do not see this option, your sound card does not support it — in that case, you will need a virtual audio cable tool like VB-Audio Virtual Cable (free version available). Once Stereo Mix is selected, click the red record button in Audacity and play the audio you want to capture.

On Mac, Audacity does not have a built-in system audio option. Instead, read BlackHole (free, github.com/ExistentialAudio/BlackHole) or Loopback (paid, $99, rogueamoeba.com). These create a virtual audio device that routes your computer's sound into Audacity. The setup is more involved than Windows, but it works reliably once installed.

A simpler Mac alternative is ScreenFlow ($99, telestream.net) or the free OBS Studio (obsproject.com), both of which record video and audio together. If you only need audio, OBS is overkill, but it works.

Using Audacity for recording and editing

Audacity is free, open-source, and available for Windows, Mac, and Linux. read it from audacityteam.org. Open it, select your microphone or system audio as the recording device (see above), and click the red record button. The waveform appears in real time as you speak or play audio. Click the stop button (square) when done.

After recording, you can trim silence, cut out mistakes, adjust volume, add effects, or combine multiple tracks. Select a section of audio by clicking and dragging, then use the Edit menu to cut, copy, or delete. To export your recording as an MP3 or WAV file, go to File > Export > Export as MP3 (or WAV). Audacity will ask you to read the MP3 encoder the first time you export to MP3 — follow the link and install it, then try again.

Audacity has a learning curve, but the basics are straightforward: record, select, edit, export. Hundreds of tutorials exist on YouTube if you get stuck. The software is powerful enough for podcasts, audiobooks, and music projects, but straightforward enough for voice memos if you want more control than Voice Recorder offers.

Choosing a microphone that matters

Your computer's built-in microphone is usually poor — it picks up keyboard noise, fan noise, and room echo. If you record regularly, a USB microphone makes an enormous difference. You do not need an expensive one. A Blue Yeti ($60–$100) or Audio-Technica AT2020USB-X ($99) will sound dramatically better than your built-in mic and work with any recording software.

Plug a USB microphone into your computer, and it appears as a recording device in Voice Recorder, Audacity, or any other app. Select it from the recording device dropdown, and you are done. The microphone sits on your desk and has its own mute button and volume control. For remote calls or podcasts, this is the single best upgrade you can make.

If you are recording on a budget, even a $20 USB microphone will sound better than your built-in mic. The difference between a $20 mic and a $100 mic is noticeable but not as dramatic as the difference between built-in and any USB mic at all.

File formats and where your recordings go

Voice Recorder and QuickTime save as M4A files, which are compressed audio files that take up less space than WAV or FLAC. M4A works on most devices and in most apps. Audacity exports as MP3, WAV, FLAC, or OGG depending on what you choose. MP3 is the most universal format — it works everywhere and is smaller than WAV. WAV is uncompressed and higher quality but takes up much more space.

For voice memos and speech, MP3 at 128 kbps is fine. For music or anything where quality matters, use WAV or FLAC. For sharing online, MP3 is standard. Your recordings save to your computer's hard drive by default — Voice Recorder saves to Documents > Sound Recordings, and Audacity lets you choose where to save when you export.

If your hard drive is nearly full, recordings will fail. Check your available storage before recording long sessions. A one-hour MP3 at 128 kbps takes about 60 MB. A one-hour WAV takes about 600 MB. Plan accordingly if you are recording multiple hours.

Frequently Asked Questions

Can I record a Zoom call or Teams meeting?

Yes. Zoom and Teams both have built-in recording features — look for a Record button in the meeting controls. The recording saves to your computer automatically. If you want to record on your own without the host knowing, use Audacity with system audio enabled (Windows) or BlackHole (Mac), but check your local laws first — some places require all parties to consent to recording.

Why does my recording sound like it was made in a bathroom?

Your room is too reflective. Hard surfaces like tile, glass, and drywall bounce sound around. Hang a blanket or towel behind your microphone, or record in a closet or small room with soft furniture. Even a cheap foam windscreen on your microphone helps. The microphone itself matters less than the room you record in.

What is the difference between MP3 and WAV?

MP3 is compressed — it throws away some sound data to make the file smaller, but most people cannot hear the difference. WAV keeps all the data and sounds slightly better but takes up 10 times more space. For voice and speech, MP3 is fine. For music, WAV is worth the extra space.

Can I record two people talking at the same time?

Yes, if both people are in the same room — your microphone will pick up both voices. If they are on different calls or in different locations, you need to record each person separately (one through your microphone, one through system audio) and combine the tracks in Audacity afterward. This requires some editing skill but is possible.

Do I need to pay for recording software?

No. Voice Recorder (Windows), QuickTime (Mac), and Audacity (both) are all free. GarageBand is free on Mac. OBS Studio is free on all platforms. You only need to pay if you want advanced features like video editing, professional effects, or a polished interface — but for basic recording and editing, free software is more than enough.