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slow VU meters on Sony STR-V6
MacGeek:
FM interstation noise (which is close to white noise-less bass than pink noise, but usable for a test) might be a quick way to test the meters, without setting up a full blown pink noise test. What the meters indicate will depend on what the circuit was designed to do. The old MACs were designed to indicate rated power at +3db (or 1/2 power at 0db).
I do agree with your comment that the meters are mostly for entertainment value (I love watching mine in the dark). If the music doesn't mesmerize me, the meters do. However, knowing how they are intended to operate can make them useful tools for setting balance, measuring frequency response, etc.
papabearjew:
I have a Stereophile Test CD that in addition to a dozen test 1/3 octave warble tones from 20Hz to 1kHz for testing speakers and rooms and other cool stuff, includes 2:15 (time) of pink noise. I find this really valuable for comparing source to monitoring on tape decks. I tried to attach photos of it but the server said my files were too big and I don't know how to change them.
MacGeek:
I don't have the Stereophile disc, does it have any other useful signals? I do have a Sheffield A2TB test disc, as well as MoFi "Sound Check" disc and a Denon "Audio Technical" CD. I think they all have some version of 1/3 octave and broad band pink noise as well as more, other test signals than any ordinary person might ever use. When I have time, I prefer to set up the RANE (pink noise, calibrated mike, RTA, etc.), but usually don't get that involved unless I want to tinker with the EQ. I do like some of the sweep tones on the test CDs to check speakers (and my room) for cabinet vibrations and resonance (found a loose screw that way once and not the one in my head:).
Maybe we should make copies for each other (and others?). There is at least one unique test on each of the discs I have. I also have test LPs to set up phono carts, a CD with reference tones to set up tape recording and who knows what else.
papabearjew:
other than what I've already posted it does have a channel phasing track and 14 various symphonies suitable for some listening tests. I can email you the back of it listing what's on it if you want. I don't know how to copy stuff but when BJ is back when he has time maybe he'll do it.
MacGeek:
No hurry, no worries. I'll try to learn how to copy what I have as well. I always have trouble with file size when trying to post pics. Resolution is another possible problem. there is always the old photo copy and US mail.
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