Quiz Space

Deep Learning Practice · Quiz 2 · 23 Nov 2025 · September 2025 term

Question 2: In modern Text-to-Speech (TTS) pipelines like Tacotron2 o…

Question 2

+3 marksOne correct option

In modern Text-to-Speech (TTS) pipelines like Tacotron2 or FastSpeech, what is the specific role of a component like HiFi-GAN or WaveNet?

  1. A

    To convert the input text into a sequence of phonemes (G2P).

  2. B

    To predict the duration of each phoneme in the sequence.

  3. C

    To convert the intermediate mel-spectrogram representation into a raw audio waveform.

  4. D

    To extract a speaker embedding from a reference audio file.

Show answer

Correct answer

  • C

    To convert the intermediate mel-spectrogram representation into a raw audio waveform.

Question 2 of 15 in the IIT Madras BS Deep Learning Practice (Deep Learning Practice) Quiz 2 paper sat on 23 Nov 2025, in the September 2025 term (IIT M DEGREE AN EXAM QDB2 23 Nov 2025 NEW). It carries 3 marks.

More questions from this paper

  1. Q1In an embedding-based speaker diarization pipeline, what is the primary role of the\ Agglomerative Clustering algorithm?
  2. Q3In the Wav2Vec2 pipeline, a 1-second (16000 samples) audio clip is passed to the 'Wav2Vec2Model' and results in a 'last…
  3. Q4In an ASR model like Wav2Vec2-CTC, the final linear layer outputs a tensor of logits. What does this tensor represent?
  4. Q5What is the primary architectural innovation of FastSpeech that makes it faster and more robust than an auto-regressive…
  5. Q6An audio clip has a duration of 5 seconds and is recorded at a sample rate of 44.1 kHz. What happens to the total numbe…
  6. Q7Figure question
  7. Q8A complete speaker diarization pipeline is used to determine "who spoke when". Which of the following are essential com…
  8. Q9Figure question
  9. Q10Which of the following statements accurately describe the Wav2Vec2 model and its components? (Select ALL that apply)
  10. Q11Regarding the SpeechT5 model for Text-to-Speech (TTS), which of the following statements are true? (Select ALL that app…
  11. Q12Figure question
  12. Q13You are evaluating an ASR model using 'jiwer'. The ground truth transcription is: "the quick brown fox jumps over the l…
  13. Q14A 3.5-second audio file is sampled at 16000 Hz. It is fed into a 'Wav2Vec2Model'\ ("facebook/wav2vec2-base-960h"), whic…
  14. Q15A speaker diarization script processes a dataset with 200 unique speakers. It extracts an average of 15 segments for ea…