The music identification service Shazam has been with us for a while now. This great service/app let’s you identify a piece of music playing in the background or on the radio just by holding up your phone and letting it ‘listen’ to the music for about 10-15 seconds. The app more often than not successfully
Continue reading »Category Archives: "DSP"
CCRMA Summer Workshops
The folks at CCRMA have released the timetable for their 2014 Summer Workshops Series. There’s a great mix of programs available. I’m especially interested in the Music Information Retrieval workshop since I have worked on similar projects in the past, but would be excited to learn the latest techniques and approaches in this field. MIR
Continue reading »The Fourier (Blog) Series Part 1 – Introducing The DFT
The FFT is one of the backbones of signal processing, allowing us to quickly transform a signal from time-domain to frequency-domain (and vice-versa via the inverse FFT). This allows us to analyze or manipulate the signal such as filtering, noise reduction, pitch detection or correction, time-stretching or even removing elements from the signal. The FFT
Continue reading »Understandability at 1 Bit
I recently had the opportunity to do some MUSHRA testing which is used to gather subjective qualitative data on codecs. MUSHRA stands for Multiple Stimuli with Hidden Reference and Anchor and compares several codecs and/or bitrates with the original source and an anchor, which is a low quality version of the original (usually bandlimited to
Continue reading »Good Vibrations in Stereo
Derry Fitzgerald at the Audio Research Group, Dublin Institute of Technology appeared on the John Murray Show on RTE Radio to talk about up-mixing ‘Good Vibrations’ into Stereo. We marked 50 years since the Beatles’s first single ‘Love Me Do’ last week, also in 1962 a new band called the Beach Boys were starting out
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