Acoustics Advent Week 3+ | The Sound Blog

Day 15

This is a selected cool sound instance of throwing a rock onto a frozen lack. In an ice sheet excessive frequencies transfer quickest and so arrive first, adopted by the slower, decrease frequencies. Throw a rock onto a frozen lack and also you get superb chirps. You get the same chirping sound if you happen to clap your palms on the entrance of an extended pipe. In that case it’s known as a Culvert Whistler. You can learn extra about this and different unusual echoes in Sonic Wonderland / The Sound Book.

Day 16

What occurs to the vocal anatomy if you sing a carol? Looking at an MRI of somebody singing is spell bounding. Who knew the tongue was so giant and versatile. Here is somebody singing #DeckTheHalls in an MRI scanner. Warning, the singing is flat, however it will probably’t be simple to sing contained in the machine.

Day 17

In 1650, Athanasius Kircher described an notorious piano the place cats shrieked to create a tune. Now a lacking web page from Kircher’s manuscript Musurgia Universalis has been unearthed revealing a sketch for a #SantaClausPiano. Alex Wilson from #SalfordAcoustic has recreated the instrument.

Day 18

Bruno Fazenda from Salford Uni and collaborators, have investigated whether or not cave work have been positioned the place there may be fascinating acoustics. Here is his fascinating paper on the topic or you may learn the weblog he wrote concerning the examine. We despatched trainee acoustican Santa to research additional …

Day 19

Today’s #AcousticsAdvent was a few tiny whoopee cushion in a Christmas cracker, which stared on this movie, alongside the World’s largest whoopee cushion. The giant cushions have been a prop for a science present, as a result of they’re pushed by the identical physics because the vocal chords. The rasping sound comes from a sequence of air puffs.

Day 20

Ghosts within the machine, as Christmas Images invaded my audio editor.
It’s like ‘[Equation]’ by AphexTwin! This is Granular Synth, utilizing demo code that I made for college students on Acoustical and Audio Engineering diploma at Salford. But you may use freeware like Coagula to do one thing comparable.

Day 21

What do your vocal chords look like when singing a carol? Amazing video of vocal folds opening and closing when singing. If you want to see how they get the camera in the throat this video from last year’s Royal Institution Christmas Lectures reveals all.

Day 22

An energy saving gadget for a tired Father Christmas. He only has to say one #Ho to get a #HoHoHoHoHoHoHoHo. Based on drawing by 17th century scholar Athanasius Kircher, who was obsessed with playing games with echoes.

Day 23

This Christmas angel has got some moves, but it’s disturbing when it hip thrusts. The video of the vibrating angel-shaped plate goes from low to high frequency and was made using a computer simulation.

Day 24

Listening out for Father Christmas in the 1930s? The Dutch personal parabola could amplify the sleigh bell jingle but became redundant once #ReindeerRadar was invented in the mid-1930s 🙂

Day 25

Coventry carol in venues with extreme reverberation. Including:

I think the Hamilton Mausoleum is best for this carol. You can read more on why we like reverb in this New Scientist article. Many theories in the article, and one is that the emotional impact of music increases the more listeners are surrounded by it. You can read more about places with extreme reverberation in Chapter 1 of Sonic Wonderland / The Sound Book. The video made using virtual auralisation.

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