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Here's What 'All Things Considered' Sounds Like — In Blackbird Song
Listen
• 2:33
AILSA CHANG, HOST:
While none of us will communicate with birds as well as singer Bobby Day with his "Rockin' Robin," this project just might get you close. Oona Raisanen is a Finnish programmer who built a speech-to-birdsong convertor, and it all started with a dream of a blackbird.
OONA RAISANEN: And he was talking in a human voice. And then I slowly woke up, and it was 5 am in the morning. And there was still a blackbird outside, but now it wasn't talking anymore, it was singing.
MARY LOUISE KELLY, HOST:
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And listening to that song, she perceived an inflection somewhat like human speech.
RAISANEN: I think it kind of had a sort of sentence structure in its song.
KELLY: As a signal-processing geek, she thought, why not write some computer code to transform speech into birdsong?
RAISANEN: Human voice is built up of these simpler tones that are put on top of each other to make vowels and consonants.
CHANG: But the tune of many songbirds, while still complicated to produce, often consists of a single harmonic tone rather than layers of harmonics like the human voice.
RAISANEN: So if I remove all of those tones from the human voice except for the one, it should become blackbird song. And it did.
CHANG: Here's how that sounded with Oona voice.
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(SOUNDBITE OF ARCHIVED RECORDING)
RAISANEN: At the tone, 16 hours, zero minutes.
(SOUNDBITE OF BIRDSONG)
RAISANEN: I don't think there's any use for it, per se - some silly ideas that I had. Maybe it could be used as a children's toy or - oh, yeah - you could entertain your cats.
KELLY: Well, in case you're wondering, no, it does not work the other way around. The tool cannot convert birdsong into human speech, so apologies to all you bird scientists out there.
CHANG: Darn. But there is one more application for this technology. We could convert the daily ALL THINGS CONSIDERED broadcast into birdsong. So if I say, hi, I'm Ailsa Chang, and I host ALL THINGS CONSIDERED, this is what that would sound like in birdsong.
(SOUNDBITE OF BIRDSONG)
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CHANG: (Laughter).
KELLY: (Laughter) I like it. OK, I'll try. If I say, I'm Mary Louise Kelly, and I also host ALL THINGS CONSIDERED, it would sound like...
(SOUNDBITE OF BIRDSONG)
KELLY: Charming, but it might make it maybe a little too hard to parse the daily news.
CHANG: (Laughter).
(SOUNDBITE OF SONG, "ROCKIN' ROBIN")
BOBBY DAY: (Singing) Tweedle-lee-dee-dee. Tweet. Tweet. Tweet. Tweet. He rocks in the tree tops all day long, boppin' and a-boppin' and a-singing his song. All the little birds on Jaybird Street love to hear the robin go tweet tweet tweet. Transcript provided by NPR, Copyright NPR.
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