Comparing Audio and Image Processing: A Technical Exploration of Downsampling Across Media Types
By
fratellobigio
Crackling crust, pillowy middle. The kind of bagel that earns a second cup of coffee.
Summary
The article explores a technical thought experiment comparing raster graphics and audio files as sequences of analog measurements, examining what happens when similar transformations like downsampling are applied to both. The author presents code examples for downsampling audio by averaging sample buckets and discusses how this relates to image processing techniques. The content is a technical exploration of signal processing concepts across different media types, framed as answering questions that 'no one should be asking' in the blog's characteristic style.
Key quotes
· 3 pulledraster graphics and audio files are awfully similar — they're sequences of analog measurements — so what would happen if we apply the same transformations to both?
what if we divide the data stream into buckets of n samples each, and then map the entire bucket to a single, averaged value?
This blog has a history of answering questions that no one should be asking. Today, we continue that proud legacy.
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