The Secret Military Origins of the Sound Spectrograph

The sound spectrogram is a playable audio format, even though it’s usually meant to be seen and not heard.  Most spectrograms represent types of content that are readily accessible in other, more convenient formats.  But if we want to hear what the secret speech-scrambling technologies of the Second World War sounded like, spectrograms printed in…

What is Paleospectrophony?

I coined the word paleospectrophony in the fall of 2008 to refer to a new method I’d worked out for educing or “playing” historical representations of sound.  After first introducing it on my Phonozoic website (here), I used it during a presentation I gave at the 2011 ARSC conference (here) and again in my book/CD…