Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

Analog to Digital Conversion in DHAI Course 2022

10 Questions

0 Views

Analog to Digital Conversion in DHAI Course 2022

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main purpose of using a short-time window in spectrogram representation?

To obtain a clearer representation of time

To improve the resolution in frequency analysis (correct)

To smoothen events in time

To analyze the audio signal in a more detailed manner

How does a longer window in time affect the frequency resolution in spectrogram representation?

Improves the time resolution

Decreases the frequency resolution

Increases the frequency resolution (correct)

Does not affect the frequency resolution

What is the trade-off when using a shorter window in time in spectrogram representation?

Decreased time accuracy

Improved frequency accuracy

Less smoothing in time events

Reduced frequency resolution (correct)

In spectrogram representation, how does a narrowband signal differ from a wideband signal?

Narrowband signals provide better time information Signup and view all the answers

What is the consequence of using a long window in time for spectrogram representation?

Improves the resolution in frequency analysis Signup and view all the answers

How does a short window impact the frequency resolution in spectrogram representation?

Decreases the frequency resolution Signup and view all the answers

Which type of signal, narrowband or wideband, would be preferred for focusing on detailed time information?

Narrowband Signup and view all the answers

In what way does a wider window impact the representation of time events in spectrogram analysis?

Leads to less detailed time information Signup and view all the answers

What happens to the frequency resolution with an increase in window length for spectrogram representation?

Frequency resolution improves Signup and view all the answers

What is the primary advantage of using a short-time window for analyzing audio signals?

Improved time precision Signup and view all the answers