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Free Practice Quiz Question List

3 Digital Audio Online Quiz Questions

Use this free practice quiz with 20 questions to review 3 Digital Audio, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: In PCM audio, samples are measurements of the signal taken at regular time intervals.

  1. A

    True

  2. B

    False

02
True or false
1 point

True or false: Recording at a higher bit depth will remove noise or distortion that is already present in the incoming signal.

  1. A

    True

  2. B

    False

03
Choose one
1 point

A production team is comparing audio settings. Which setting describes how many samples are recorded each second?

  1. A

    The number of bits used to represent each sample's amplitude

  2. B

    The number of samples recorded per second

  3. C

    The number of audio channels in a recording

  4. D

    The length of time between edits in a project

04
Fill in the blank
1 point

In PCM audio, the converter takes measurements called at regular time intervals.

05
Written response
1 point

What does the abbreviation DAW stand for in audio production?

06
Choose one
1 point

During a take, the input meter shows that the signal exceeds digital maximum. Which outcome should the engineer expect?

  1. A

    The recorded signal is too quiet, so raising its level later will restore all missing detail.

  2. B

    The signal exceeds digital maximum, producing distortion that lowering the volume later cannot remove.

  3. C

    The signal contains room reflections, which are automatically removed by the recording meter.

  4. D

    The recording uses too few channels, producing distortion that panning can eliminate.

07
Choose all
1 point

You are preparing to record speech in a noisy room. Which actions follow the recommended practices for capturing clean audio? Select all that apply.

  1. A

    Reduce background noise and turn off unnecessary equipment.

  2. B

    Set the gain so peaks regularly exceed digital maximum, then lower the volume after recording.

  3. C

    Make a short test recording and listen for problems.

  4. D

    Set input gain to record a clear signal without reaching digital maximum.

08
Fill in the blank
1 point

The number of bits used to represent each sample's amplitude is called .

09
Written response
1 point

What sample rate, in kHz, is used for audio CDs?

10
Choose one
1 point

An editor expects to revise cuts and effects later. Which feature best supports that workflow by preserving the original audio?

  1. A

    It permanently replaces the original audio whenever a cut is made.

  2. B

    It combines all tracks into one file and removes the need to save a project.

  3. C

    It stores edit instructions while leaving the original audio unchanged.

  4. D

    It automatically restores detail lost in compressed audio.

11
Choose all
1 point

You are estimating the uncompressed data rate of PCM audio. Which settings affect the amount of audio data? Select all that apply.

  1. A

    Sample rate

  2. B

    Bit depth

  3. C

    Track name

  4. D

    Channel count

12
Open ended
1 point

A team needs to return to a mix later and change individual edits. Explain what they should preserve in addition to the final audio export, and why the export alone is not enough.

13
Choose one
1 point

Which format uses lossless compression to reduce file size without discarding audio information?

  1. A

    FLAC

  2. B

    MP3

  3. C

    AAC

  4. D

    A low-quality lossy file converted to a higher-resolution format

14
Choose one
1 point

A producer is comparing two PCM settings. Which setting describes how many samples are recorded each second?

  1. A

    The number of samples recorded per second

  2. B

    The number of bits used to represent each sample’s amplitude

  3. C

    The number of audio channels in the file

  4. D

    The amount of compression applied to the audio

15
True or false
1 point

If a recording clips, lowering its volume afterward cannot remove the distortion caused by clipping.

  1. A

    True

  2. B

    False

16
Written response
1 point

A producer needs software to display recorded sound as waveforms and arrange, process, and combine audio tracks. What is this type of software called?

17
Choose one
1 point

A clean recording is being prepared for editing, and the producer wants greater precision in representing each sample’s amplitude. Which change most directly supports that goal?

  1. A

    Reduce background room noise with better recording conditions.

  2. B

    Increase bit depth; this allows more possible amplitude values and can reduce quantization noise.

  3. C

    Increase bit depth to prevent all clipping regardless of input level.

  4. D

    Increase sample rate to increase the number of samples recorded each second.

18
Choose one
1 point

Using the Nyquist principle, what is the lowest listed sample rate that is greater than twice an 18 kHz frequency?

  1. A

    32 kHz

  2. B

    36 kHz

  3. C

    40 kHz

  4. D

    48 kHz

19
Written response
1 point

An editor wants to revise cuts and effects later while keeping the original audio unchanged. What editing approach supports this?

20
Choose one
1 point

A recipient requests a compact audio file and specifies the format and settings. Which delivery choice best meets the request?

  1. A

    Convert a low-quality MP3 to a higher-resolution format to restore discarded detail.

  2. B

    Choose the largest available sample rate and bit depth regardless of the recipient’s requirements.

  3. C

    Export to a requested lossy format such as MP3 or AAC using the recipient’s specified settings.

  4. D

    Use a lossy format for the only master copy and discard the project files.