Recent content by Nicholas Bedworth
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Bit Perfect Audio
My own experience so far with JPLAY is that is enormously resource intensive. The integration with JRMC 15 was quite smooth, but the default settings are likely to cause your PC to function in a rather leisurely fashion. To the extent that one has a very (electrically) noisy PC, and a mediocre...- Nicholas Bedworth
- Post #11
- Forum: Computer Based Music Server Forum
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Do you use cables to 'tune' the sonics of your system?
The MIT "interfaces" really seem quite different, in a positive sense, than all the other cables that have gone through my systems. And many of them have been very good indee. Bruce suggests that this interfaces are optimized at a number of frequencies, and my subjective experience is that this...- Nicholas Bedworth
- Post #28
- Forum: Audio Cable Forum
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Stage III Concepts Magnus Prime interconnect review
Stage III Concepts Magnus Prime Analog Interconnects Nicholas Bedworth Introduction The voicing of a reference-grade sound system derives from the personality of keycomponents. While it’s certainly natural to think of “big ticket” items, such as amps, DACs, and speakers, dominating the...- Nicholas Bedworth
- Thread
- Replies: 1
- Forum: Audio Cable Forum
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I2S and 16 to 24 and 32 bit conversion LSB extension errors
Yes, and the ESS guys are really, really smart. The delta-sigma is really not the point in their products, it's more the signal processing that allows them to greatly reduce jitter, state variable noise and all those interesting things. -
I2S and 16 to 24 and 32 bit conversion LSB extension errors
http://www.esstech.com/PDF/sabrewp.pdf This White Paper seems pretty detailed. -
I2S and 16 to 24 and 32 bit conversion LSB extension errors
One quick input... an ESS DAC refers to the SABRE 32 bit designs. They're widely used in mid-range audio DACs. -
I2S and 16 to 24 and 32 bit conversion LSB extension errors
Don, Thanks for the constructive dialogue and experimental findings... Note how a "simple" effect gets quite complex when we examine all the details. By "handling", my meaning was that the ESS type DACs do things completely differently "inside" than, say, an MSB-style ladder DAC. So it... -
I2S and 16 to 24 and 32 bit conversion LSB extension errors
Don... Fascinating! So the result of improper LSB extension is certainly measureable, and few or no spurs are always better, so the issue is, firstly, whether such artefacts are audibile if they "survive" all the way through the DAC process, and secondly, a related question, do the spurs... -
I2S and 16 to 24 and 32 bit conversion LSB extension errors
Hello Ray, Thanks for the correction... My 2's complement arithmetic is a little rusty. I was aware that the error only affected the negative polarity part of the signal... as the first two examples show. But for the last example, of course you're correct, it shows a positive number with bit... -
I2S and 16 to 24 and 32 bit conversion LSB extension errors
Apparently many DACs that use I2S architecture and related chipsets do not correctly convert 16 bit samples to 24 or 32 bit words prior to conversion. What measures are typically taken to correct this problem, as described below? Which chipsets and DAC architectures are more subject to it...- Nicholas Bedworth
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- 24 and 32 bit samples i2s lsb bit extension
- Replies: 24
- Forum: Digital Audio Forum: DAC, Transports, Digital Processing Forum
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The most transparent speakers in the world
Vincent et al., What do you think the glass in the Perfect8 speakers might be? There's a pair in my living room right now, and they're simply divine. It seems to me that their dipole technology has a lot to do with the results; the room seems to be much less involved, and the speakers...- Nicholas Bedworth
- Post #25
- Forum: General Audio Forum
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Audiogon's new face
They're getting there. They need to attend to the critical issues first, namely responsiveness. The levels of scamming seem very high since the new software was put up. They say to e-mail the member name and they'll kill it immediately. So these scammers are signing up as new members to get in...- Nicholas Bedworth
- Post #155
- Forum: General Audio Forum
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Audiogon's new face
Just make it obvious how to contact you in the body of the ad. :) They can't read all the ads, and don't use obvious HTML tags. So far, it hasn't been possible for me to post reviews or respond to threads, although others seem to be able to do it. Authentication works OK for the ads part.- Nicholas Bedworth
- Post #91
- Forum: General Audio Forum
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Audiogon's new face
You might have some e-mails generated by Audiogon with the person's username, and with that, you could be able to contact him, assuming the member look up part of the site is working. :) Yeah, it's a mess right now...- Nicholas Bedworth
- Post #79
- Forum: General Audio Forum
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Amir's CES 2012 Picture Thread
Hi Jack, At least it wasn't a gecko! The smell of roasting lizard would be interesting... :) NB
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