Hacker News·3 min read·medium
Less Is More: Why Audio on SoundCloud Looks Different
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✦AI Summary
SoundCloud has updated its audio encoding process to prioritize perceptual quality over high-frequency data retention. By using a low-pass filter to remove frequencies above 17 kHz, the platform allocates more bits to the audible range, resulting in a cleaner sound for listeners.
Last year, SoundCloud upgraded its AAC encoder for the first time in over a decade. The new one (Fraunhofer’s libfdk_aac) delivers higher perceptual audio quality across every metric we track.
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