Blog Archives

ACA Tools

Work­ing on my Mas­ters project, I ended up writ­ing a lot of Mat­lab code in scripts for Audio Con­tent Analy­sis. This online repos­i­tory at GitHub is the result of a deci­sion to clean up and doc­u­ment my own code, with

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Genre Identification

Start­ing off as a mini-project for a class, it turned out to be a project to help me get learn and explore Weka, a data min­ing frame­work and using MEX func­tions in Mat­lab. I used the GZTAN genre dataset as

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fLoop

fLoop : Navigation Interface

Audio retrieval by tim­bral and rhyth­mic sim­i­lar­ity fLoop attempts to solve a com­mon issue faced by artists who com­pose with audio loops; which loop can fol­low the cur­rent one? fLoop is an audio file nav­i­ga­tion tool that pro­vides a sim­ple inter­face

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Speaker Identification in Reverberant Environments

This project was an explo­ration into Com­pu­ta­tional Audi­tory Scene Analy­sis (CASA), Blind Source Sep­a­ra­tion (BSS), Multi-Resolution Analy­sis, Speaker Iden­ti­fi­ca­tion, Neural Net­works and Speech Syn­the­sis. It was per­formed as a group of four stu­dents, for a class in DSP for Music. An

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HRTF’s and Reverberation

This project aimed to study Bin­au­ral Room Impulse responses, sim­u­late the impulse response of a shoe­box room using the image method. The image method was pro­posed by Allen and Berke­ley, access the paper here. Read on for a crash course in

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Binaural Spatial Audio

Work­ing under KVS Hari at the Indian Insti­tute of Sci­ence (IISc) as a sum­mer intern, I had the oppor­tu­nity to explore bin­au­ral spa­tial audio. This was my first expe­ri­ence with spa­tial audio and Head Related Trans­fer Func­tions (HRTF’s), which I

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Wireless Sensor Networks

As a sum­mer Intern at the Indian Insti­tute of Sci­ence under K.V.S Hari, I worked on an iner­tial nav­i­ga­tional sys­tem using a pair of wire­less Cross­bow® TelosB Mote’s. The TelosB mote is built on the MSP430 plat­form with an accelerom­e­ter,

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Brainwave Entrainment with Binaural Beats

I’ve been inter­ested in bin­au­ral beats since I first heard of their pro­posed ben­e­fits years ago. My per­sonal expe­ri­ence with them, how­ever, never yielded any results. I sus­pected ‘ben­e­fits’ like study aid were place­bos, and effects like decreased stress seemed

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Compressed Sensing

A comparison of the reconstruction performance of various sparsifying bases

I had the oppor­tu­nity to study Com­pressed Sens­ing for my Under­grad­u­ate the­sis under K.V.S Hari and Chan­dra Sekhar See­la­man­tula at the Indian Insti­tute of Sci­ence. The Shannon-Nyquist the­o­rem has been the cor­ner­stone of Infor­ma­tion The­ory for over 80 years. It

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