I'm Josh Meyer. I've spent the last decade building speech and AI systems — from co-founding a startup and releasing open-source models with 6M+ monthly downloads, to leading applied AI teams shipping LLM and multimodal products. I have a PhD in automatic speech recognition. Currently I'm a founding engineer at Veris AI, building simulation environments for LLM agents.
Below are tutorials and write-ups from along the way.
Speech Recognition
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An Overview of Multi-Task Learning in Speech Recognition
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My INTERSPEECH Schedule
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Kaldi Troubleshooting Head-to-Toe
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Kaldi Hyperparameter Cheatsheet
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Kaldi nnet3 notes
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Kaldi on AWS
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Josh's Speaker ID Challenge
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Seminal Papers in ASR
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How to use an Existing DNN Recognizer for Decoding in Kaldi
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How to Visualize a Word Lattice with Kaldi
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How to Train a Deep Neural Net Acoustic Model with Kaldi
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How to use an Existing GMM Recognizer for Decoding in Kaldi
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Some Kaldi Notes
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CMU-Sphinx Cheatsheet
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Installing Kaldi
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The CMU-Sphinx Speech Recognition Toolkit: First Steps
Speech Synthesis
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Create New Voice with Ossian & Merlin
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Getting started with the Merlin Speech Synthesis Toolkit
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Let's make a Chuvash voice! : Moscow Higher School of Economics Speech Synthesis Workshop
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eSpeak NG Notes
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How to Add a Language to eSpeak NG
Machine Learning
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How to Train practically any Model from practically any Data with TensorFlow
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Maximum Likelihood Estimation of Gaussian Parameters
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A TensorFlow Tutorial: Email Classification
Miscellaneous
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Watercolor Shaders for Ghostty
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How we added Kyrgyz to Mozilla's Common Voice project
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Some Linux Text Processing Notes
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A List of Other Blogs
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Some SoX(I) Notes
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Soricut & Och (2015): Unsupervised Morphology Induction Using Word Embeddings
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Installing Praat on Ubuntu - getting sound to work
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