Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: DeathBeforeDishonor1; All

A better paragraph format.(Don’t know what happened with the previous post)

Like anything else recorded it depends on the engineering and what the individual likes and prefers...even sound techs and audio producers.

I hate record surface noise, crackles and the ear fatigue that the low and sub bass rumble in the disc and platter (and perhaps a slight warp in the record) cause when listening over an hour or so. Records have a practical dynamic range of 60 to 70 db which drops to 40 to 50 db at the end of the tracks(the center of the record) because the grooves have to be cut and squeezed to accommodate at least 30 minutes to a side on your average long play 33.3 rpm records(record track velocity is slower in the center and faster at the edges so the tracks have to be cut with that in mind and the frequency spectra altered). I often find that the bass at the end of the record has been filtered and the music bright and tinny because reducing the bass decreases the width of the swing of the track and allows more time/music. The Needle and cartridge allows generally 30 to 40 db of stereo separation but a lot of channel cross talk occurs with l-r and r-l mono mixing in both channels. This mixing often causes a pleasant sense of warmer ambiance that sounds pleasant and more enveloping with two speakers but this may not have been the original intent of the producers. That l-r and r-l audio mixing during the stereo signal extraction process and the narrow dynamic range can sound easier and more mellow on some ears and allows a consistent volume to be set without having to constantly jump up to turn the volume up or down.

The records scratch easily. It used to be the practice of many record owners like myself to record the first pass of a record onto high quality cassette tape on a middle of the road to high end cassette deck with dolbHX, Dolby C, or DBX(the best noise reduction for tapes but came late as did dolby c). The tapes by then could withstand hundreds of plays without too much loss in fidelity while the record could be stored and protected. The cassette heads had the same sorts of pleasant sounding crosstalk despite their excellent stereo separation since it recorded the record from the signal from the needle and cartridge.

Now I think a lot of analog sourced music recorded directly to digital( tube powered audio pre-amps and such like it or analog tape then to digital media) can sound really wonderful or digital music played thru tube amplifiers. The digital recording of analog sources also allow for the lifting of the dynamic range restrictions that have to be imposed on vinyl records especially for wide range orchestral music. Obviously pop, rock, and folk music are generally recorded in a more restricted range anyway.
Records generally sound better with a two speaker set up or a 4 speaker set up with the rear speakers wired in a hafler circuit to take more advantage of the l-r and r-l ambiance locked in the discs.

Records played through more modern 5.1 surround systems can be a mixed bag and their recording imperfections show up almost immediately depending on the various matrix surround modes one may use, specific to the brand of receiver to play the record back. Best surround modes to my ears to use are the dolby prologic surround modes found in most modern multichannel receivers with the subwoofer set to process all the low bass.

Avoid special artificial cinema modes or stadium effects for records though height effects channels with dolby prologic can sound pretty decent when playing records. Neural X does well will processed pop vinyl. The main drawback with multichannel play back of records is that record noise and sub bass rumble is that, it is all magnified in all 5 to 7 to 9 channels depending on the size of your reciever.

Instruments and voices can come from odd directions and mono narrations can sound like they are coming from one side of the room(front and back!) and not the center.(especially older records) Heavily multimixed and multitracked stereo records can behave unpredictably though old matrix quad records often sound great...especially in Prologic..since they were mixed to play well in mono, stereo or in quad.(SQ and QS matrixed records do well... sometimes quite startlingly well)


34 posted on 07/10/2022 4:11:40 AM PDT by mdmathis6 (A horrible historic indictment: Biden Democrats plunging the world into war to hide their crimes!)
[ Post Reply | Private Reply | To 6 | View Replies ]


To: mdmathis6
"....This mixing often causes a pleasant sense of warmer ambiance that sounds pleasant and more enveloping with two speakers but this may not have been the original intent of the producers."

Awesome analysis.

That "warmer ambiance" is one of the things I love about vinyl, but nice to know its true origins - thanks!

37 posted on 07/10/2022 4:50:54 AM PDT by Psalm 73 ("You'll never hear surf music again" - J. Hendrix)
[ Post Reply | Private Reply | To 34 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson