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Scanning thousands of native English clips with synchronized subtitles and exact timestamps.
Pronunciation Guide
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Listen to native speakers pronounce “upsweep” in real conversational contexts with synchronized timestamps and subtitles.
slowing down-- a submarine, or a ship, or something like that. It's not. Those sound very different. They look very different on a spectrogram. So, this is also officiallyunsolved. Here's one called "the upsweep."These are all sped up 16 times. These are all subsonic.