Active LPs vs CDs Review – Part 4 – webpage 2.

Main Chariots of Fire brands

Keep in mind that the values ​​of any CD tracking are not as “good” given that the EAC digital ripping. This gives a sign of the difference between “real world” results and “theoretical” results.

Now clearly LP seems to be losing in dynamic numbers, in fact compared to CD tracking (contrasting the numbers inside the maximum RMS powerline – the lowest). This can become predictable, given the area of ​​sounds on LP (which is pretty clear for my system).

But before we consider this a “win” for CD, let’s take a closer look at the sonic ground, both on CD and LP recordings.

These are in fact the background noises of the CD recording (from inside the little “silencer” before the songs start):

The sound floor seems to hang over -88dB at 20kHz, then drop below -108dB (the root sound floor for sound cards).

In comparison, here is the recording on the LP for the same purpose:

We are able to understand why the data is “generally misleading”. LP’s sound floor is clearly very reasonable over much of the spectrum, ranging from -84dB around 1kHz to -96dB for wavelengths above 10kHz. In other words, the LP tracker has reduced background sound compared to CD recording in the most common range (frequencies below 2 kHz).

The exterior sound of LP, in fact it is in charge of the indegent dynamic range, is mainly targeted below 500Hz where in fact the noise level is around -50dB.

And that’s for a mass-produced industrial LP, bought second-hand from a thrift store for around $ 1!

The sound floor is further reduced for an “audiophile” pressing top quality plastic. This is the sound floor for a portable Fidelity “First Tracking Tracker” from Three that works best for jazz soloists.

As you can see, the sound floor is convincingly below -90dB down to 400Hz. As a result, it would appear that vinyl records have a reasonable dynamic range for the majority for the clear frequency variety.

Many vinyl fans have long claimed that they can listen “below” the sound floor of their LPs. My observations seem to support this claim in part: outside sounds are quite “structured” (this has a distinct “sound” rather than random noise) allowing all of our brains / ears to “filter” them aside and pay attention. from “music” entirely seriously to “real” fundamental sound floors that are similar to CD.

An even more fascinating statistic to consider is max – Average RMS Power. As I have mentioned in previous reports, this is an excellent sign of “relative characteristics”. Observe that the relative dynamics was a separate principle from the potent variety. The comparative characteristics will be the difference between the dB between any two elements of a waveform. The vibrating board is the difference between the loudest indication and the sound floor.

Here the LP really “wins” over the CD. The difference in LP between optimal and average is around 11.56dB, unlike recording on CD at 11.11dB and electronic rip at 11.35dB. Simply put, the overall dynamics of the LP’s “real community” are better than the CD’s “theoretical” performance.

You could now state: but aren’t the larger amounts of noise on LP probably the origin of the principles, and so the details of the email address aren’t mathematically significant?

To further our research, why not take a look at the real waveforms.

This is basically the waveform when it comes to electronic tearing (next we’ll explain the importance of the highlighted range around 30 seconds for the track):

CD tracking is pretty much the same:

And the same goes for tracking the LP:

Today, let’s zoom into the highlighted area. This is essentially the recording of the CD:

Note that the relatively quiet part at the start peaks around -24dB. The next highest point is around -18-12dB.

Comparing, here is the LP recording in the same place:

Be aware that although the initially quiet zone is normally around -24dB, the noisier section that follows actually has larger peaks, including -18-9dB! This is exactly despite the fact that both tracks have the same ordinary RMS electricity (quite simply, the same ordinary volume detected). In particular, the loud bit about 30 seconds of the track actually peaks at 3-4 dB more on LP than on CD!

This research supports my own personal subjective impressions of contrasting CD versus LP. I much prefer to hear the LP throughout the CD to my program. The CD looks dull, loaded, dirty, and with a lack of features. Basically turn up the volume, the noise turns out to be considerably serious and man-made. The LP having said that it sounds the most “dynamic” and “exciting”.

Now, why not evaluate the spectral panorama regarding the recordings. first of all paraguay online chat room CD tracking:

You may have realized that there is no spectral content above 20 kHz, due to the Nyquist cutoff at 22.05 kHz. The occasional few spikes are probably distortions of my personal setup.

In comparison, here is the LP recording:

The LP would seem to offer a much better regular response, with spectral components up to 48 kHz. But I caution against interpreting this graph (for now). I suspect that a lot of this spectral information is harmonic distortion and that there is not a lot of significantly beneficial regularity information above 20 kHz inside the initial main band. We will explore the functional regularity reaction of LP in detail below.

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