Step 2: Removing any DC offset (if present)
DC offset can occur at the recording stage so that the recorded waveform is not centered on the horizontal line at 0.0 . This can be caused by a faulty soundcard. If this is the case with your recordings, see the Normalize page for how to use Normalize to remove DC offset and how to check if your Windows sound device can perform this correction automatically.
Step 3: Editing, Noise Reduction and Click Removal
When you have finished recording, press the yellow Stop button and save your recording into the Project you started by using . Now the data is safe, you can edit it in Audacity if you want to (for example, cut redundant pieces out), or come back to it later by re-opening the saved Project file with the command. See Edit Menu for help with editing.
You may also want to remove clicks from records using Click Removal, then after that you can optionally use Noise Reduction to try to reduce steady noise such as vinyl "roar" or analog master tape hiss. Noise Reduction is especially useful for reducing hiss when recording cassettes.
Removing clicks and pops is recommended when recording vinyl, as any loud click will interfere with maximizing the volume of the recording - the Amplify effect can't tell the difference between music and clicks. Select the entire track by clicking on the Track Control Panel or choosing then choose . The default parameters in the Click Removal dialog will detect and remove most clicks, so try this first. If you find that it did not remove certain clicks or pops, select those regions in turn and apply the Click Removal effect, adjusting the parameters until it is successful. See