Audio Theory Exam Quiz Questions

A compressor is commonly used to control the dynamic range of various instruments. This means that it helps to balance the volume levels of different parts of a musical performance, ensuring that the louder parts are not too overpowering and the quieter parts are still audible. By reducing the dynamic range, a compressor can make the overall sound more consistent and balanced. It is a valuable tool in audio production and live sound engineering.

A commercial CD typically has a sample rate of 44.1kHz and a bit depth of 16 bits. The sample rate refers to the number of samples taken per second to capture the audio, while the bit depth determines the dynamic range or the number of possible amplitude levels that can be represented. In the case of a CD, the sample rate of 44.1kHz allows for accurate reproduction of audio frequencies up to 20kHz, which is the upper limit of human hearing. The 16-bit bit depth provides a dynamic range of around 96 dB, ensuring high-quality audio playback.

The correct answer is Recording - Editing - Mixing. This sequence is commonly followed in the recording process. First, the recording is done to capture the desired audio. Then, the recorded tracks are edited to remove any mistakes or unwanted elements. Finally, the edited tracks are mixed together, adjusting the levels, panning, and adding effects to create a cohesive and balanced sound.

Equalisation is a tonal shaping tool used in audio production. It allows for adjusting the balance of different frequencies in a sound, enhancing or reducing specific frequencies to achieve the desired tonal quality. By boosting or cutting certain frequency ranges, equalisation can shape the overall sound of an audio signal, making it brighter, warmer, or more balanced. It is commonly used in mixing and mastering processes to enhance the clarity and quality of audio recordings.

MIDI stands for Musical Instrument Digital Interface. It is a protocol that allows electronic musical instruments, computers, and other devices to communicate and synchronize with each other. MIDI enables the transmission of musical data such as notes, control signals, and timing information between different devices, making it possible to create, record, and play back music electronically.