Eryk Walczak
Markets | Data Science | Research | Innovation | Digital Finance
- London, UK
- Bank of England
- Github
- Google Scholar
- ORCID
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Preparing for and passing BCS Foundation Certificate in Business Analysis (v4)
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Last week I passed the BCS Business Analysis Foundation exam. Preparation took me about a week, with a good deal of cramming over one weekend — though I'd already covered a lot of the material on an earlier project management... Read more
PostcodesioR 0.1.1 is on CRAN
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Introduction The latest stable version of my UK geocoder package has finally made it to CRAN . PostcodesioR is a wrapper for postcodes.io and it provides multiple functions to work with UK geospatial data. The package draws exclusively on open... Read more
Extracting pitch track from audio files into a data frame
1 minute read
Published:
My task was to extract pitch values from a long list of audio files. Previously I'd used Praat and R for this, but looping in R was rather slow, so I went looking for another approach. I developed the following... Read more
Automatic splitting of audio files on silence in Python
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In my previous post , I described how to split audio files into chunks in R. This time I wanted to use Python to prepare long audio files (. mp3 ) for further analysis. The typical use case is splitting... Read more