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Bas Krahmer

PROFILE

Bas Krahmer

Over a two-month period, contributed to Lightning-AI/torchmetrics by developing features that enhanced both classification metrics and text-to-speech evaluation workflows. In January, delivered a flexible classification metrics API in Python and PyTorch, allowing micro-averaging without requiring explicit num_classes, which improved usability and maintainability for users working with multiclass accuracy. In June, implemented a PESQ-based TTS Quality Evaluation Demo that enabled side-by-side audio comparisons using multiple speaker embeddings, and updated documentation with a Text-to-Speech Gallery to improve discoverability. The work demonstrated a focus on robust API design, audio processing, and clear documentation, supporting both technical and product-oriented use cases.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

2Total
Bugs
0
Commits
2
Features
2
Lines of code
188
Activity Months2

Work History

June 2025

1 Commits • 1 Features

Jun 1, 2025

June 2025 monthly summary: Delivered a PESQ-based TTS Quality Evaluation Demo in Lightning-AI/torchmetrics, demonstrating generation with multiple speaker embeddings and PESQ-based quality comparison against a target voice, with an audio playback UI for side-by-side assessment. Documentation updates added a Text-to-Speech Gallery (#2801) to improve discoverability and usage. This work strengthens TTS evaluation workflows, provides a concrete perceptual-quality example for stakeholders, and aligns with quality assurance and product storytelling.

January 2025

1 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for Lightning-AI/torchmetrics: Focused delivery of a robust, user-friendly classification metrics API with improvements to micro-averaging workflows. No major bugs fixed this month; emphasis on reliability, API ergonomics, and business value through cleaner usage and fewer configuration steps.

Activity

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Quality Metrics

Correctness95.0%
Maintainability90.0%
Architecture90.0%
Performance90.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

JinjaPython

Technical Skills

Audio ProcessingDocumentationMachine LearningPyTorchPythonSoftware Development

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

Lightning-AI/torchmetrics

Jan 2025 Jun 2025
2 Months active

Languages Used

PythonJinja

Technical Skills

Machine LearningPyTorchSoftware DevelopmentAudio ProcessingDocumentationPython