Audio Editing and Mixing Flashcards

What does '5.1 surround sound' refer to?

Answer: Five full-range channels plus one subwoofer channel

5.1 surround sound consists of five full-range channels (front left, center, front right, rear left, rear right) plus one low-frequency effects (subwoofer) channel.

What is 'audio ducking' in video production?

Answer: Automatically lowering background music when dialogue is present

Audio ducking automatically reduces the volume of background music or ambient audio when dialogue or narration is detected.

What is a 'noise floor' in audio recording?

Answer: The ambient level of background hiss and noise in a recording system

The noise floor is the level of inherent system noise (hiss, hum) in a recording, below which the desired signal cannot be heard.

What does 'sample rate' determine in digital audio?

Answer: How many times per second the audio waveform is measured and captured

Sample rate is the number of times per second the analog audio waveform is digitally sampled, measured in Hz (e.g., 44,100 Hz or 48,000 Hz).

What is the standard sample rate used for professional video audio?

Answer: 48,000 Hz

48,000 Hz (48 kHz) is the professional standard sample rate for video audio, while 44,100 Hz is used for music CDs.

What is 'foley' in film and video post-production?

Answer: Custom sound effects created in sync with the film action by a foley artist

Foley is the art of creating and recording custom sound effects in sync with the picture, such as footsteps, clothing movement, and props.