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Diff-TTS: A Denoising Diffusion Model for Text-to-Speech

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arxiv 2104.01409 v1 pith:YLYFYEOX submitted 2021-04-03 eess.AS cs.AIcs.SD

classification eess.AScs.AIcs.SD
keywords diff-ttsdiffusiondenoisingfastermel-spectrogrammethodmodelspeech
verification ladder T0 review T1 audit T2 compute T3 formal
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Although neural text-to-speech (TTS) models have attracted a lot of attention and succeeded in generating human-like speech, there is still room for improvements to its naturalness and architectural efficiency. In this work, we propose a novel non-autoregressive TTS model, namely Diff-TTS, which achieves highly natural and efficient speech synthesis. Given the text, Diff-TTS exploits a denoising diffusion framework to transform the noise signal into a mel-spectrogram via diffusion time steps. In order to learn the mel-spectrogram distribution conditioned on the text, we present a likelihood-based optimization method for TTS. Furthermore, to boost up the inference speed, we leverage the accelerated sampling method that allows Diff-TTS to generate raw waveforms much faster without significantly degrading perceptual quality. Through experiments, we verified that Diff-TTS generates 28 times faster than the real-time with a single NVIDIA 2080Ti GPU.

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Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. WavTTS: Towards High-Quality Zero-Shot TTS via Direct Raw Waveform Modeling

    eess.AS 2026-06 unverdicted novelty 8.0 of 10

    WavTTS is the first raw-waveform diffusion TTS model using DiT flow matching and multi-scale mel supervision that approaches SOTA latent zero-shot performance while beating prior end-to-end models.

  2. Noise Aggregation Analysis Driven by Small-Noise Injection: Efficient Membership Inference for Diffusion Models

    cs.CV 2025-10 unverdicted novelty 7.0 of 10

    Introduces noise aggregation analysis with single-step small-noise injection to enable efficient and accurate membership inference attacks on diffusion models.

  3. Autonomous Collaborative Learning Among an Ensemble of Tsetlin Machines with Consensus-Based Inference

    cs.LG 2026-07 conditional novelty 6.0 of 10

    A two-layer Tsetlin Machine ensemble with gossip-based vote sharing matches centralized accuracy on several benchmarks without exchanging raw data.

  4. A Novel Automatic Framework for Speaker Drift Detection in Synthesized Speech

    cs.SD 2026-04 unverdicted novelty 6.0 of 10

    A framework detects speaker drift in TTS outputs by computing cosine similarities across speech segments and using LLMs for binary classification, supported by a human-validated synthetic benchmark.

  5. DiTReducio: A Training-Free Acceleration for DiT-Based TTS via Progressive Calibration

    cs.SD 2025-09 conditional novelty 6.0 of 10

    DiTReducio is a training-free, pattern-guided layer and branch skipping method that accelerates DiT-based TTS, reporting significant FLOP and RTF reductions with modest quality loss at tuned thresholds.

  6. AudioX-Turbo: A Unified Framework for Efficient Anything-to-Audio Generation

    cs.SD 2026-06 unverdicted novelty 5.0 of 10

    AudioX-Turbo distills a Multimodal Diffusion Transformer into a 4-step student model for efficient multimodal anything-to-audio generation, trained on a new 9.2M-sample dataset IF-caps-Pro.

  7. AudioX-Turbo: A Unified Framework for Efficient Anything-to-Audio Generation

    cs.SD 2026-06 unverdicted novelty 5.0 of 10

    A distilled multimodal diffusion model generates audio from text, video, or audio in four steps with claimed superior quality and ~25× fewer function evaluations.

  8. Scaling Properties of Continuous Diffusion Spoken Language Models

    cs.CL 2026-04 unverdicted novelty 5.0 of 10

    Continuous diffusion spoken language models follow scaling laws for loss and phoneme divergence and generate emotive multi-speaker speech at 16B scale, though long-form coherence stays difficult.

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