Those threads, and the incessantly repeating arguments are why I don't hang around here much anymore. Too many dead horses being beating.

Nobody said anything about you lying, or anybody lying. There is high value in subjective testing, in fact, it's the only way to ascertain the net audible impact. The problem is when subjective testing is uncontrolled, and bias is uncontrolled. It just results in data with a lot of errors in...

So you object to their requirement that users making statements about sound quality provide objective support of the claim? It's a Science-based forum, like this one. Subjective opinion will always be challenged, because it's so unreliable, even being influenced by input from other sense...

A personal DBT is not "controlled". Thanks.

I would challenge you to prove your point using a controlled DBT. No? OK, we're done. If there's such a huge and obvious improvement, there will be no problem picking the difference out in an ABX/DBT. I would anticipate that next comes a volley of anti DBT arguments, so we really have...

Sounds like you gave it your best as long as you could and now the situation is confined to incompetence. Not the first time, nor the last. It's a big leap for tech management to take advantage of on-site people with knowledge because that knowledge is hard to know and trust, and finding out...

Wow. Toa is uphill from that. And they aren't uphill from much. It's a way for a contractor to get a job by underbidding and cheaping out on the hardware. I'll be the speakers are work $15 each. So funny, because the cost of a distributed system is mostly labor anyway. So if cost was saved...

I fault the music service. Somewhere in their system there should be a mono mix method, either at the device output, or in the stream. And the setup instructions should have that problem taken care of. Or the sound system installer should have done it. So many opportunities to fix it, It's...

Time was, retail music was designed to stimulate the business, not entertain the customers and workers. That meant unfamiliar, or less familiar music programmed for pacing and feel. To that end, everything done today in retail music is completely wrong. Playing familiar songs stimulates...

Someone may already have had one there at some point. The covers get the provider around one level of licensing fees. I could get into a discussion of how background music is used and misused today, but it sounds like your company just bought a cheap service. Bigger chains cut corporate...

Yes, each SCA is one "station" with one program. In it's heyday, "storecasting" via SCA supported FM stations who hadn't collected any audience yet, and couldn't sell commercial time. The usage of reel-to-reels in stores was fairly limited, and really didn't happen all that much because it was...

Music licensing fees are paid by the entity supplying the music, in the case of anything on-air, the broadcaster. The fee is based on the market size, and "not for resale". It's illegal to play a radio station in a retail store as background music, though there are some store size limits to...

I believe you misunderstood the concept of SCA - Subsidiary Communications Authority. From a transmission standpoint, it's a sub-carrier at 67kHz and/or 92kHz, frequency modulated with audio or data. Newer methods include digital spread-spectrum modulation with audio or data with a well...

Having the technology and utilizing it well don't typically fall at the same point in the time line.

Philips noise shaping and 4X over sampling was an attempt to utilize 14 bit DAC chips in a world moving to 16 bit DACs. It only sort of worked, the players had OK SQ, but had so many other issues, particularly in the clunky control concept, that they became legendary, and not always in a good...

OK, but isolation fails at the rate of 6dB/octave with decreasing frequency, if you ignore resonances. That 20dB you get at 250hz will be more like nothing below 30Hz. LF isolation is a $$/dB ratio.

That's isolation, non cancellation. Isolation works by preventing the problem from occurring in the first place.

I cited an example of 250Hz. Still doesn't work in a situation with variable ear location.

Oh, bandwidth is an concern alright. Because at the higher frequencies the distances to a null are tiny. Just take 10kHz. A perfect null (not necessary for ANC, but it makes the point) is achieved when the cancellation signal and the noise signal are perfectly matched in phase (time) and...

Um...well, I'm afraid I have to disagree here. I have a pair of the Parrot Zik 3 headphones. They start with respectable isolation, then apply their own ANC. The ANC is quite good, and does not impact fidelity at all. You can turn it on and off, nothing changes except the background noise...

Adaptive beam-forming over 20-20kHz, 5 to 6 seats, differing head heights, using existing speaker locations and drivers. Might want to give that one a little more than 30 seconds of thought.

Don't bother. He just mentioned "flat earth" as a result of science when it was, in fact, a cultural belief that had nothing to do with science. Just like his audio beliefs. Again, don't bother. Just not worth it. And my previous post has just been proven true.

What you want to bet...this will have very little impact on anything. As much as I agree with his findings, this is like trying to stamp out a false religious belief. People believe because they want to, facts be damned, and this one is reinforced by "higher and more is better", even if it...

The results of Mark Waldrep's "HD Audio Challenge" are live.

Theatrical THX was never a possibility for the home. Small systems and rooms at 3000cu ft don't work like big theaters, dub stages, or screening rooms. Home THX (the original specs as written by Tom Holman) were specific to living room systems. The target was a timbre and presentation match...