The context is important, IIRC it was counter to the levels of feedback common at the time which were exactly in the region to likely cause instability/distortions?
No we can't; at least not before you and your next of audio kin have a crash course in feedback principles and math and can subsequently have an educated conversation about (assuming it would be needed, which would already be an extraordinary situation). And consider the same negative feedback is used to retrieve -160dB signals from the Deep Space Network and reproduce them with no distortions to speak of. Or control LIGO, essentially a 200dB gain parametric amplifier.
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I wonder if your browser is viewing an alternate universe? You don't seem to be reading the same forum as me...
He is right. All the twoddle on spectral regrowth is due to too little feedback. Either use none or lots. 6dB NFB is not a sensible amount.
I read the article as wilful nonsense. After my teenage years, I stopped listening to contemporary pop music altogether, because there is, always was, and always will be incredibly good music to find out there.
The real culprit of so called musical illiteracy is a lack of investment in children's education in the arts and music - otherwise deemed as 'frivolous' activities. It has been consistently proven all over the world that irrespective of a child's artistic or musical ability, creative activity improves academic achievement, encourages social bonding, and teaches children that life can be fun, as well as hard work.
ToS
Not to mention - what is "pop" anyway? I'm always suspicious of genre classifications, usually means someone is trying to influence your thinking an a bad way...
may be 'pop music' helps sustain music industry in a small way ?
• Music album consumption in the U.S. by genre 2018 | Statistic
• Music album consumption in the U.S. by genre 2018 | Statistic
@Scott, my data points are from Tomlinson Holman's 'Dynamic Range Requirements of Phonographic Preamplifiers' (Audio, July 1977).
I don't doubt that the spectral energy in music drops off quickly at HF or that looking at this data in the time domain might give one an alternative insight into what is going on.
I've used the Holman paper as a reference wrt worst case phono amp levels getting back into this audio stuff for about 15 years ago. The Holman paper talks about 'hot' records i.e. ones that are cut at high levels and/or have high levels of HF from e.g. cymbal crashes (see Table 1). Separately, two records were measured that showed peak outputs of 80cm/sec at c. 2.8 kHz and the second 105 cm/sec at c. 7 kHz.
The minimum overload capability recommended in the paper is 100mV at 1kHz - so c. 33x or 30 dB for a typical 3mV output MM cart. The overload figure reference signal levels on the record at LF are even higher at 35mV to account for worst case warp and resonances. These figures (1kHz and LF) were arrived at by looking at levels across many records.
I don't doubt that the spectral energy in music drops off quickly at HF or that looking at this data in the time domain might give one an alternative insight into what is going on.
I've used the Holman paper as a reference wrt worst case phono amp levels getting back into this audio stuff for about 15 years ago. The Holman paper talks about 'hot' records i.e. ones that are cut at high levels and/or have high levels of HF from e.g. cymbal crashes (see Table 1). Separately, two records were measured that showed peak outputs of 80cm/sec at c. 2.8 kHz and the second 105 cm/sec at c. 7 kHz.
The minimum overload capability recommended in the paper is 100mV at 1kHz - so c. 33x or 30 dB for a typical 3mV output MM cart. The overload figure reference signal levels on the record at LF are even higher at 35mV to account for worst case warp and resonances. These figures (1kHz and LF) were arrived at by looking at levels across many records.
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Which are picked from an obscure publication most of us have never heard of and no one has bothered to try and replicate since...
OK, a warm crumb ........ pop music is whatever you leave behind from an extended childhood. I happen to like pop music, I just don't listen to it anymore. At the moment I am listening to Miwon, later I will be listening to Glenn Gould, tomorrow I shall be listening to Paco Osuna. Whatever takes my fancy, makes me think, or just get up and dance.
Yes, I'm such a bad person - nothing going down for me as a social justice warrior, eh? Enjoy your discussion, and next time try not to quote me out of context.
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The best phono preamps i heard of had +-43/ +-35v power supply with less than 100mv dc offset at the output before the coupling capacitor measured after 3 decades since they were manufactured.You can't use their output to get into any sound card without a compressor or a noise gate.
Yet the usual +-17...18v without dc offset control can give you enough quality if you keep the records clean.
Unfortunately this is a bit difficult for most of us.
More on this i'm buying into Scott's soft compression if it works as in valve preamps.
Yet the usual +-17...18v without dc offset control can give you enough quality if you keep the records clean.
Unfortunately this is a bit difficult for most of us.
More on this i'm buying into Scott's soft compression if it works as in valve preamps.
I didn't quote you out of context. You referred to pop music, so I commented on the concept of genres... I said nothing bad about you...
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