Post AzMjYMtk7gCi59l3hI by cliffordheath@mastodon.social
 (DIR) More posts by cliffordheath@mastodon.social
 (DIR) Post #AzMjYKgCN4BJCZPDJA by whitequark@mastodon.social
       2025-10-18T22:42:21Z
       
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       did you know ITU has a document with the exact frequencies of dialtones and busy tones for every region? https://www.itu.int/ITU-T/inr/forms/files/tones-0203.pdfvery useful for getting modem handshakes period- and region-correct
       
 (DIR) Post #AzMjYLngCjlAg3uhbk by whitequark@mastodon.social
       2025-10-18T22:44:25Z
       
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       i don't think i have perfect pitch or anything, but i can easily tell whether a recording i hear today matches a dialtone i've last heard 20 years ago or not
       
 (DIR) Post #AzMjYMtk7gCi59l3hI by cliffordheath@mastodon.social
       2025-10-19T00:01:26Z
       
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       @whitequark "Perfect pitch" is misnamed. It's pitch memory. Most people can remember a pitch, and anyone can train to extend the duration of that memory. I don't think anyone is born with it.
       
 (DIR) Post #AzMjYOCZHArA7pZbg8 by ignaloidas@not.acu.lt
       2025-10-19T11:34:55.608Z
       
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       @cliffordheath@mastodon.social @whitequark@mastodon.social From research, there's two kinds of "perfect pitch" IIRC? One though memory, and one through synestesia