Monthly Archives: October 2012

Festival Noise Pollution

This post was long in the making – the seeds of it sown during the recent Ganesh Chaturthi  celebrations, and now culminating in the Durga Pooja celebrations. This note is for the organizers of such festivals. Having been on both sides of the fence, I expect this post to be a balanced view. Indians love noise.  Let me begin by Indianizing the context – we love noise during festivals. Bustling preparations that set the whole household abuzz a week before […]

Acousticspeak : Things You Will Hear Acousticians Saying

Acousticians speak physics. They don’t speak convenience. :). But here’s a post outlining the basics of what you’ll hear them talk about. Loudness Yes, I know you know what loudness is. You may even know that we measure this in decibels. But what you should know is that the human ear perceives loudness logarithmically, not linearly. What does that mean to you? It means that we humans therefore use a logarithmic scale to measure loudness. And that means, that a […]

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Acoustics for Speech and Hearing Institutes

I’ve only just started freelancing on my own. Unlike the initial  romanticised impression of acoustics being the perfect mix of music, maths and physics, I really spend most of my day listening to noise :). So I thought I should get my hearing tested for two reasons: To have a point of reference for a ‘before’ and ‘after’ scenario of my hearing sensitivity. To understand what frequencies I am sensitive to, and any hearing losses I may have for other […]

Soundproofing Studios

Studios are critical listening spaces. The noise levels have to be as low as 10-20 dB.  The hum of the HVAC, the rumble of the ceiling fan, the structural vibrations of all the houses/buildings nearby, the rumble of trucks on the road, the cross talk through the HVAC duct, the hum of the machines, all make a rather big difference to the quality of the sound. Also, since most studios are rather small spaces, the the bass response must be […]

Soundproofing Jamming Rooms

  That gap on top of this post is intentional. Air Gaps are your friend when it comes to soundproofing! Every band dreams of practicing freely in a room without neighbours dropping in with a scowl on their faces. Similarly, every studio hopes to record the most subtle aspects of music without worrying about the surrounding urban noise.  These two places need soundproofing for opposite reasons – jamming rooms must prevent sound from going out, and studios need to prevent sound from […]