Methinks that some confuse "break in" with just plain "broken"
Or just "broke" if you buy esoteric cables
New RCA cables. Sound is horrible.
- Thread starter Bingy
- Start date
Or just "broke" if you buy esoteric cables
tadawson
Well-Known Member
"Brokeback cables"Or just "broke" if you buy esoteric cables
AudioAvarice
Super Member
You make it sound like buying decent cables is difficult, whereas it's just a case of not buying from China, eBay, or Amazon 
This thread is why I love cd's. Who'd have thought dragging a volcano-created rock through polyvinyl chloride embedded with tiny bumps would be a fussy and difficult medium?
Imagine my own fear when, after mounting and setting aside 3 years or so ago, my Shibata stylus and Shure V15 type 2 decided to not have a left channel.
I remounted the stylus. I tried all the usual grimy switches, cables, etc.
After spritzing where the wires mount at the end of the cart and into the tip that feeds into the arm, it came to life.
Vinyl is a huge asz-pain. I love it just like I love women, but yeah, total azz-pain.
Imagine my own fear when, after mounting and setting aside 3 years or so ago, my Shibata stylus and Shure V15 type 2 decided to not have a left channel.
I remounted the stylus. I tried all the usual grimy switches, cables, etc.
After spritzing where the wires mount at the end of the cart and into the tip that feeds into the arm, it came to life.
Vinyl is a huge asz-pain. I love it just like I love women, but yeah, total azz-pain.
It takes a lot of work but the payoff is amazing
Thomas_AA
Well-Known Member
Using a test record.
I'd still like for the OP to twist the copper strands in a leftover section of the new Mogami cable to confirm that it's not CCA (which would be fake). There's no mistaking CCA for solid copper when you twist the strands -- copper stays twisted, and CCA is pretty limp.
I was initially dismissive of this because LP test records don't grow on trees, but they are available -- so it's probably not a bad idea.
I was initially dismissive of this because LP test records don't grow on trees, but they are available -- so it's probably not a bad idea.
I have several test records, but did not realize I could use them to measure frequency response directly.
I guess you could do a digital recording of a frequency sweep from a low-use test record and then process it with something like Audacity to generate a plot?
Would your goal be to either refute or substantiate what the OP said he was hearing?
Personally, I might consider such an undertaking if I was concerned about a specific portion of the response. But if I was hearing gross distortion, I'd probably just trust my ears to tell me that I have a bigger problem than, for example, a roll-off occurring 500Hz sooner than spec.
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Play a vinyl test record containing "white" or "pink" noise and view the audio output of the preamp on a spectrum analyzer. This should give you a frequency plot across the band. You could use peak hold on the spectrum analyzer to generate a single line display.
Example:
tadawson
Well-Known Member
Actually, the REW software package (free for any platform) will give you just what you need . . .
www.roomeqwizard.com
REW room acoustics and audio device measurement and analysis software
REW is free software for room acoustic measurement, loudspeaker measurement and audio device measurement
www.roomeqwizard.com
Thomas_AA
Well-Known Member
Recording in Audacity and then use REW. For gross changes one can use pink noise and apply a calibration curve for pink noise in REW. Sweeps from Ortofon test record is quite accurate if one apply a certain correction first. Depends what test records you have.If only I had a spectrum analyzer!
Fortunately, my turntables sound pretty good to me. Enogh so that I don't want to know if they are deficient.
Measurements are good when tracking problems that needs to be fixed.
tadawson
Well-Known Member
????? Use your sound card and REW live, as it was meant to be used. No need to introduce Audacity into this . . .
(And pink noise, by it's very definition, should be flat in an analyzer with no tweaking . . . as I can confirm in SMAART and my hardware based RTA . . . *white* noise, however . . . )
(And pink noise, by it's very definition, should be flat in an analyzer with no tweaking . . . as I can confirm in SMAART and my hardware based RTA . . . *white* noise, however . . . )
Thomas_AA
Well-Known Member
no.
Pink Noise VS White Noise - What's The Difference? – Acoustic Fields
Pink noise is a type of noise that is commonly used in room acoustics to evaluate the performance of a space. It is named after the way it appears on a
www.acousticfields.com
tadawson
Well-Known Member
Then you need to argue the point with the measurement industry, since thier gear certainly thinks it it is . . . (and SMAART is one of the professional standards)no.
Pink Noise VS White Noise - What's The Difference? – Acoustic Fields
Pink noise is a type of noise that is commonly used in room acoustics to evaluate the performance of a space. It is named after the way it appears on a
I suspect that you are getting confused by the definitions, and how analyzers display. White is even energy across the linear spectrum (which analyzers do *NOT* typically display) and pink is equal energy *per octave* as in the way a graphic eq works and an analyzer displays. Heck, even the second image down in your link shows pink displaying flat on a octive based analyzer display . . .
White noise is basically useless for sound system testing, and isn't even typically offered as a test signal.
Why is My Noise Pink? White, Pink, and Red Noise Explained
Why is My Noise Pink? Noise Contours Explained In audio, Noise is perhaps the most ubiquitous test signal for making acoustic measurements. For different use-cases and scenarios, there are different types of noise (known as noise contours...
support.rationalacoustics.com
Thomas_AA
Well-Known Member
Well I am measuring it another way - I like storing things in wav - and importing a pink noise file into REW needs 10 dB/decade correction. Since not many records contain good sweeps or pink noise; I left those rather poor tracks long time ago for high quality sweeps (CA-TRS1007/Ortofon).
'
You do have one. You are typing on it right now. (don't tell me your computer has no sound card installed)
petehall347
the brandy coffee man
mine hasn't got one .. not all computers are the same .