Difference between revisions of "2025:RenCon"

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= RenCon 2025: Expressive Performance Rendering Competition =
  
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Welcome to the official MIREX wiki page for RenCon 2025, a new task on expressive musical rendering from symbolic scores. This task is part of the MIREX 2025 evaluation campaign and will culminate with a live contest at ISMIR 2025 in Daejeon, Korea. For updates, templates, and examples, please visit our official site: https://ren-con2025.vercel.app
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Here is a short summary of the important information:
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== Task Overview ==
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RenCon challenges participants to develop systems that generate expressive musical audio renderings based on symbolic input (e.g., MIDI, MusicXML). Submissions are evaluated in two phases:
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* Phase 1 – Preliminary Round (Online):
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Systems submit rendered audio (and optionally symbolic outputs) for both required and free-choice pieces. No real-time constraint is imposed.
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* Phase 2 – Live Contest (Onsite at ISMIR):
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Top systems will be invited to render a surprise piece using their system in real time at ISMIR. The audience will vote to determine the winner.
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== Timeline ==
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* '''May 30 – Aug 20, 2025''': Submission period for preliminary round
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* '''Aug 26, 2025''': Preliminary round results released
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* '''Sept 10, 2025''': Online evaluation results + invitation to live contest
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* '''Sept 2025 (TBD)''': Live contest at ISMIR 2025
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== Submission Requirements ==
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Each submission should include:
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* Code and checkpoint of your system
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* Symbolic inputs and audio outputs for:
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* At least 2 out of 3 required pieces
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* One free-choice piece (≤1 min 30 sec; max 4 pieces, 5 min total)
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* A technical report, including dataset details and post-processing notes
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== Evaluation ==
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* Online round: Human evaluation and technical inspection
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* Live round: Real-time rendering, judged by ISMIR audience
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* Objective metrics (e.g., alignment, timing, velocity) are used for analysis but not ranking
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== Datasets ==
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No restriction on datasets (public, private, internal allowed), but transparency is required.
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== Post-Processing ==
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Systems must report any post-processing:
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* Symbolic-to-audio systems: Describe synthesizers, soundfonts, or piano models used
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* Direct audio systems: Note EQ, compression, or other effects
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* Interventions: If prompts or editing were used, clarify in your report
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* MIDI cleanup: Describe if quantization, editing, or timing correction applied
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Minimal human intervention is encouraged unless well-justified.
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== Organizers ==
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* Huan Zhang (Task Captain, QMUL)
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* Junyan Jiang (NYU)
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* Simon Dixon (QMUL)
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* Gus Xia (MBZUAI)
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* Akira Maezawa (Yamaha)
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Contact: huan.zhang@qmul.ac.uk

Latest revision as of 15:47, 18 May 2025

RenCon 2025: Expressive Performance Rendering Competition

Welcome to the official MIREX wiki page for RenCon 2025, a new task on expressive musical rendering from symbolic scores. This task is part of the MIREX 2025 evaluation campaign and will culminate with a live contest at ISMIR 2025 in Daejeon, Korea. For updates, templates, and examples, please visit our official site: https://ren-con2025.vercel.app

Here is a short summary of the important information:

Task Overview

RenCon challenges participants to develop systems that generate expressive musical audio renderings based on symbolic input (e.g., MIDI, MusicXML). Submissions are evaluated in two phases:

  • Phase 1 – Preliminary Round (Online):

Systems submit rendered audio (and optionally symbolic outputs) for both required and free-choice pieces. No real-time constraint is imposed.

  • Phase 2 – Live Contest (Onsite at ISMIR):

Top systems will be invited to render a surprise piece using their system in real time at ISMIR. The audience will vote to determine the winner.

Timeline

  • May 30 – Aug 20, 2025: Submission period for preliminary round
  • Aug 26, 2025: Preliminary round results released
  • Sept 10, 2025: Online evaluation results + invitation to live contest
  • Sept 2025 (TBD): Live contest at ISMIR 2025

Submission Requirements

Each submission should include:

  • Code and checkpoint of your system
  • Symbolic inputs and audio outputs for:
  • At least 2 out of 3 required pieces
  • One free-choice piece (≤1 min 30 sec; max 4 pieces, 5 min total)
  • A technical report, including dataset details and post-processing notes


Evaluation

  • Online round: Human evaluation and technical inspection
  • Live round: Real-time rendering, judged by ISMIR audience
  • Objective metrics (e.g., alignment, timing, velocity) are used for analysis but not ranking

Datasets

No restriction on datasets (public, private, internal allowed), but transparency is required.

Post-Processing

Systems must report any post-processing:

  • Symbolic-to-audio systems: Describe synthesizers, soundfonts, or piano models used
  • Direct audio systems: Note EQ, compression, or other effects
  • Interventions: If prompts or editing were used, clarify in your report
  • MIDI cleanup: Describe if quantization, editing, or timing correction applied

Minimal human intervention is encouraged unless well-justified.


Organizers

  • Huan Zhang (Task Captain, QMUL)
  • Junyan Jiang (NYU)
  • Simon Dixon (QMUL)
  • Gus Xia (MBZUAI)
  • Akira Maezawa (Yamaha)

Contact: huan.zhang@qmul.ac.uk