In professional audio, the process of recording involves translating sound wave data into a format compliant with a chosen storage medium, such as a hard drive. The recording process should take place in a controlled environment that has been optimized using best practices for generating high-quality source audio. An audio recording can focus on capturing a specific activity, like a live sound event or a broadcast. Making a recording creates an exact copy of the full audio experience, which can include multiple sound sources, such as spoken voice, singing, instrumental music, or sound effects. When a recording is complete, the resulting audio tracks are often processed and polished to improve the overall quality of sound performance for playback. During the production process, audio engineers continually review the progress of their work using speakers and headphones. Monitoring the quality of audio during the recording process is key to creating the best possible audio track for repeated playback. Audio professionals use tools like recorders, computer software, and audio interfaces to review, combine, and develop professional audio tracks both individually and as part of larger audio projects.