Question 1

To reduce reverberation in a recording, ___________________.&#10;A) Mike close.&#10;B) Record direct.&#10;C) Add absorption to the room.&#10;D) Use bass traps.&#10;E) all of the above.

Accepted Answer

To reduce reverberation in a recording, all the listed methods can be effective. Miking close reduces the amount of room sound captured, recording direct bypasses the room acoustics entirely, adding absorption to the room diminishes reflected sound, and using bass traps helps control low-frequency reverberations.

Question 2

Standing waves are worst in a ______________ room.&#10;A) big&#10;B) cubical&#10;C) small&#10;D) long

Accepted Answer

Standing waves are most problematic in cubical rooms because the dimensions of the room (length, width, height) are equal or very similar, leading to the reinforcement of specific frequencies and creating pronounced acoustic issues.

Question 3

To reduce outside noise coming into a studio, add ______________ to the room.&#10;A) foam or carpet.&#10;B) windows.&#10;C) weatherstripping and plywood.&#10;D) different noise.

Accepted Answer

C

Question 4

Frequency response is ______________________.&#10;A) a graph of level vs. frequency&#10;B) a chart showing how frequently mixers respond to signals.&#10;C) timbre&#10;D) a graph of a microphone.

Accepted Answer

Frequency response is a graph of level vs. frequency, it shows how a system (such as a microphone or speaker) responds to different frequencies of sound. It is commonly used in audio engineering to analyze and adjust the sound quality of equipment.

Question 5

If a device has a flat frequency response, it ________________.&#10;A) sounds &#34;flat&#34; or dull.&#10;B) has no sound of its own.&#10;C) is too low in pitch.&#10;D) introduces a coloration to the sound.

Accepted Answer

A device with a flat frequency response produces sound without adding any coloration or emphasis on certain frequencies. It means that it reproduces the sound accurately, as it was recorded or intended to be heard. Therefore, it has no sound of its own and does not appear dull or too low-pitched.

Question 6

Distortion results from ___________________.&#10;A) Using old recording equipment.&#10;B) Using high power amplifiers.&#10;C) clipping the signal.&#10;D) turning the signal up loud.&#10;E) all of the above.

Accepted Answer

Distortion occurs when the peak of the audio signal exceeds the maximum level that can be transmitted or handled by a particular equipment. Clipping occurs when the signal is amplified beyond its maximum level causing the waveform to be cut off resulting in distorted output. Using old recording equipment or high power amplifiers or turning the signal up loud may contribute to distortion but clipping the signal is the primary cause of distortion.

Question 7

Optimum signal level is ____________________.&#10;A) as high as possible.&#10;B) 0 dB.&#10;C) -10 dB.&#10;D) far above noise but below clipping.

Accepted Answer

It is not ideal for the signal level to be as high as possible, as this can lead to clipping and distortion. 0 dB is simply a reference level, and -10 dB may be too low for some applications. The best choice is to have the signal level far above the noise floor, but still below the point where it will clip, which allows for a clean and strong signal.

Deck 3: Studio Acoustics; Signal Characteristics of Audio Devices