Christian Luther
Author Archives: Christian Luther
Research & Development Engineer in the audio industry and the creator of The Science of Sound.
Christian Luther
Understanding Negative Feedback
Today we dive a littler deeper into electronics and look at an important technique used to keep nonlinear distortion in check: negative feedback!
Intersample Peaks And Beyond
Intersample peaks are one of those scary phenomena in audio that have been overlooked for a long time, until the awareness about the issue started to spread around the turn of the century. But what if there’s even worse issues with heavily compressed and limited music?
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High Resolution Audio – The State of the Debate
A recently published meta-study confirms that listeners are able to discriminate high resolution audio recordings from standard ones, at least to some degree. It pays to take a closer look.
How Does Oversampling Sound?
In the final part of the series about the ins and outs of oversampling, it’s time to look at the oversampling process itself and investigate how it affects the audio, even when no other processing is involved.
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Zero-Delay Feedback vs. Oversampling
In the third part of the oversampling series, we look at a case where oversampling is not necessarily the best answer. At the same time, we get a first glimpse at what all the “zero-delay feedback” fuss is about.
Oversampling In Digital Equalizers
We continue our tour through signal-processing algorithms that benefit from high sampling rates. This time we’ll look at what the oversampling option that can be found in many digital equalizer plugins does.
Oversampling In Distortion Effects
Loyal readers of The Science of Sound know I’m not a friend of super-high sampling rates for audio recording. But there are a couple of DSP processes that benefit from oversampling.
Understanding Time-Frequency Segmentation
Humans are great at identifying, localizing and separating different sound sources in a complex mixture, like music. The key to sound source separation is time-frequency segmentation. Sounds great, huh? Let’s shed some light on these buzzwords.
About This Null Test Business
Whenever it’s about the subtlest and most controversial issues in audio, the so-called null test or difference test isn’t far away. Therefor it surely deserves an article on The Science of Sound.
Sound Localization Basics
Creating an illusion of space is a key element of music and sound design. But to be convincing, we need to understand the mechanisms of spatial hearing. The most important component of that is sound localization.