On the Audibility of Phase
This post is nothing so much as some extended thinking aloud on the subject of the audibility of phase. I have written before about how phase relationships can profoundly affect the actual waveform of...
View ArticleNot Patently Obvious
It is surprising how little-understood patents are. Ever since 1989 I have managed to find myself responsible, at one time or another, for the patent portfolios of each of the companies I have worked...
View ArticleDSD vs Class-D
There was a post the other day on the Audio Review web site by Brent Butterworth. In it, he laments how on one hand audiophiles are falling over themselves swooning over DSD, while at the same time...
View ArticleThe Story of The "New" Beethoven From Japan.
Here is a beautifully written piece about a present-day composing sensation from Japan. Deaf, like Beethoven, and a second-generation survivor of Hiroshima, and something of a cultish figure in his own...
View ArticleiTunes 12.1.2
We have been using the latest iTunes (12.1.2) and OS X (10.10.3) updates with BitPerfect for several hours, and everything seems to be working.
View ArticleTarnishing your Brand
It is one of the latest business-speak jargon phrases. We are warned against doing such-and-such a thing because it may end up “tarnishing your brand”. Why do we need this phrase? After all, we used...
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Announcing DSD Master v1.1
After a successful first year we are finally announcing our first update to DSD Master. This update is mainly a spin out of minor bug fixes, but it also includes a major under-the-hood revision of our...
View ArticleGreen Socks
Imagine Fred. He received a pair of green socks as a present from his wife, to reflect their shared interest in the environment and green technology. He was very pleased with them, and immediately...
View ArticleMore Green Socks
OK, so Fred, as you recall, discovered that wearing green socks resulted in an improvement in his car’s fuel economy, only to be put down and mocked by friends and colleagues alike who for the most...
View ArticleHow does Sample Rate Conversion work?
I wrote post this mainly to address the following question: If I have a choice of sample rates available, which one should I choose? I get asked this often, and the answer, like all things pertaining...
View ArticleDmitri Shostakovich - Symphony No 7 ’Leningrad’
I first heard the seventh symphony by Russian composer Dmitri Shostakovich on television back in the 1970’s. It must have been a televised Prom Concert, but I cannot really be sure. I had learned to...
View ArticleThe 747 Bus
A lot is made of the differences between IIR and FIR filters for high-end audio applications. FIR stands for Finite Impulse Response, and IIR stands for Infinite Impulse Response. It is perhaps not...
View ArticleHappiness Is A Warm Bun
At least it can be, when that bun is freshly baked and straight from the oven. And, happily for me, my wife bakes a pretty mean bun! But can you quantify just how good that bun is? And does it...
View ArticleYes, but is it Art?
Most aspects of modern life at the personal level tend to operate on the basis of meritocracy. The better you are at something, the more likely you are to be recognized and rewarded for it. Of...
View ArticleDark Mode Icons
Is anybody out there experienced in designing menu bar icons for OS X Yosemite's 'Dark Mode'? We are having a spot of trouble and need some sage advice. E-mail me.
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Dynamic Compression
Most computer users will be familiar with data compression. This was a godsend at the dawn of the internet age when internet connections were achieved via dial-up modems with bandwidths restricted to...
View ArticleDay One - Intellectual Property
I have mentioned before that I subscribe to B&W’s Society of Sound, and have done so for the last five years. It costs me $60 for a 12-month subscription for which I get to download 24...
View ArticleOn DSD vs PCM … again
Mark Waldrep (aka ‘Dr. AIX’) has put a couple of DSD posts on his RealHD-Audio web site this month. Mark writes quite knowledgeably on audiophile matters, but is prone to a...
View ArticleHow Do DACs Work?
All digital audio– whether PCM or DSD– stores the analog audio signal as a stream of numbers, each one representing an instantaneous snapshot of its continuously evolving value. With either format,...
View ArticleThings that lurk below the Bit Depth
In digital audio Bit Depth governs the Dynamic Range and Signal-to-Noise Ratio (SNR), but the relationships often lead to confusion. I thought it was worth a quick discussion to see if I can maybe...
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