Improving the sound of your audio recording

 Tips on how to get a good audio recording:

• Get a good microphone. Internal microphones in a computer, smartphone or tablet are very handy, but often not ideal for music production.
• Record in a quiet and absorptive environment to avoid background noise and echo-y reflections.
• If you're using your device's built-in mic, or an external mic without volume control, do the Volume test to set the right recording level and avoid clipping and distortion.
• If you're using a USB microphone or an audio interface with controls for gain/volume, check your device's manual for guidelines on how to set the optimal recording level.
• Stay close to the microphone. This will help reduce background noise and room reflections. 
• Use headphones to avoid the sound from the computer speakers to accidentally be recorded.
• Use a pop filter to remove the low-frequent "pops" that occurs because of the puffs of air created by consonants (such as "b", "p", etc).
• Try using effects such as an EQ to "repair" a bad recording by reducing unwanted frequencies.