Recording and Downloading Are Different
Free Sound Recorder captures sound while it plays on your computer. It does not fetch the original audio stream by pasting a YouTube address. The recording includes what reaches the selected playback source during the session, so interruptions or other application sounds can affect it.
Use material you own or have permission to record. If you already have a local video file and want its existing soundtrack, extracting audio from that file is a different workflow that does not require playing it from start to finish.
Set Up a Short Playback Test
Open the video and check that its sound is playing through the intended Windows output. In Free Sound Recorder, choose system playback. Use the microphone source only if you also want your voice; you do not need a microphone to capture computer playback.
Record a short section and listen back. Confirm that the correct sound is present and the level is usable. Silence notifications and unrelated applications if their sounds would interrupt your recording. Choose the section you need before starting the full take.
Capture the Part You Need
Begin recording, play the relevant section, then stop after its ending. Recording takes as long as the playback. If the video pauses to load, check that point in the recording instead of assuming the file is continuous.
When adding your own commentary, record microphone and system playback on separate tracks. Headphones help prevent the playback from feeding into the microphone as well.
Save and Check the Audio
Review the result and export MP3, WAV or FLAC. All supported recording exports in Free Sound Recorder are free. Use a clear filename so you can find the recording later, and play the exported file before sharing it.
The export format does not improve the original playback quality. Keep a source copy if you plan to edit the recording further.
Questions About This Task
Do I need a microphone for YouTube playback?
No. Choose system playback to capture computer audio directly. Enable a microphone only when you want its sound too.
Will recording remove pauses or other sounds automatically?
Do not assume that it will. Review the captured audio, especially where playback paused or another application made a sound.