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Original thread:
Post 21 made on Saturday September 8, 2018 at 09:38
highfigh
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September 2004
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On September 7, 2018 at 04:49, buzz said...
I wouldn’t do this with a CDP-101 because they sounded so bad, but I would accept an audiophile “challenge” to compare an LP directly with a CD. This had to be done very carefully. I would pick the CD and LP. Obviously, they had to originate from the same recording session, and I had to use a high end turntable (properly set up, flat LP, hole in center, low wear stylus, low wear LP). For the audiophile this was going to be a piece of cake demo and their champion would win easily. I’d synchronize the start of both, then start an ‘A’, ‘B’, ... ‘B’ sequence. Out in the middle of it all, I’d get them mixed up and the LP would give itself away with a ‘tic’. The audiophile would stomp out at that point, mad, claiming some sort of trickery on my part. Perhaps so, but they were missing the point that at the high end of things, there is not much difference.

Later, when digital audio started becoming the rage, I had a little task for the listener. There were two different MP3 resolutions and a FLAC rendering of the same CD track. I asked the listener to rank them in order of preference. Regular folk got the correct ranking 80+%, self declared “audiophiles” were closer to 50% and I had to hold my giggles. The audiophile gave all sorts of excuses — low quality amp or speakers, the room, and on and on. The real problem was that their reputation was on the line and they were too tense to pay attention. At one point I presented this demo to a computer club. I was using a SONOS CONNECT:AMP and their speakers in a dreadful Community Center meeting room. Everything was simply thrown on a table. The audience was a haphazard collection of middle age and up nerds. Everyone got the ranking correct.

The best test is when the CD and LP have each been mastered for their own format. The CDs that used the LP master are the ones people hate. Another thing the record companies would do is occasionally change the speed of a track so they could add a song to the CD. Heard that a few times when I was learning some songs and playing along with the CD, with a guitar in standard tuning. I have at least one LP with a speed change, too- one happens in the middle of a long song.

WRT MP3 vs Red Book, Gene did a podcast with a recording engineer, who played some MP3 tracks in a way that only reveals the lost info and it was easy to hear which song was being played.

I had a customer call about the fact that the two cartridges he had bought sounded very different when he switched between the two turntables used to compare test pressings of his soon to be released album. He eliminated the switch and turntables as the culprit before calling the store and I told him they're not precision instruments, so differences will occur and the chance of this kind of comparison happening was very low because the vast majority of people would never do it, so I offered to bring several of the same model of cartridge to his house so the two which were most similar could be chosen. We found two that were very similar and once he was satisfied, he asked me for me to critique the sound, which tracks sounded best overall and which tracks sounded best at different positions of the vinyl since the beginning, middle and end don't sound the same. His LP and the CD did have different mastering and he's not a wannabe, he won a Grammy for his remaster of Stop Making Sense & has many other producing credits over the decades, as well as being the owner of a recording studio in California.

Last edited by highfigh on September 8, 2018 09:47.
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."


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