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Opencpop: A High-Quality Open Source Chinese Popular Song Corpus for Singing Voice Synthesis

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arxiv 2201.07429 v2 pith:EUPPLL6U submitted 2022-01-19 cs.SD cs.DBeess.AS

classification cs.SDcs.DBeess.AS
keywords corpussingingopencpopbaselineboundarieshigh-qualitymandarinpopular
verification ladder T0 review T1 audit T2 compute T3 formal
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This paper introduces Opencpop, a publicly available high-quality Mandarin singing corpus designed for singing voice synthesis (SVS). The corpus consists of 100 popular Mandarin songs performed by a female professional singer. Audio files are recorded with studio quality at a sampling rate of 44,100 Hz and the corresponding lyrics and musical scores are provided. All singing recordings have been phonetically annotated with phoneme boundaries and syllable (note) boundaries. To demonstrate the reliability of the released data and to provide a baseline for future research, we built baseline deep neural network-based SVS models and evaluated them with both objective metrics and subjective mean opinion score (MOS) measure. Experimental results show that the best SVS model trained on our database achieves 3.70 MOS, indicating the reliability of the provided corpus. Opencpop is released to the open-source community WeNet, and the corpus, as well as synthesized demos, can be found on the project homepage.

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Cited by 3 Pith papers

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

  1. MPEcho: A Melody and Phoneme-Aware Generative Framework for Controllable Cover Song Generation

    cs.SD 2026-07 conditional novelty 6.0 of 10

    Adding SVS-style phoneme conditioning and a length regulator to melody-guided cover generation cuts phoneme error rate from 45.6% to 18.7% while holding melody metrics.

  2. STARS: A Unified Framework for Singing Transcription, Alignment, and Refined Style Annotation

    cs.SD 2025-07 conditional novelty 6.0 of 10

    STARS unifies lyric alignment, note transcription, vocal technique detection, and global style prediction into one multi-level neural model that matches or beats several single-task baselines.

  3. SmoothSinger: A Conditional Diffusion Model for Singing Voice Synthesis with Multi-Resolution Architecture

    cs.SD 2025-06 conditional novelty 5.0 of 10

    A reference-guided diffusion model with a low-frequency upsampling module achieves marginal quality improvements over prior SVS baselines on Opencpop, with significant caveats about statistical significance and reprod...

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