I just bought an SPL meter. I have had the Stereophile CD for awhile but am not sure if it will work. It has a bunch of music but it also has varying frequencies at 20DdB. For instance:
Track 4- 200Hz 1 3 Octave warble tone at 20 dB
Track 5- 160Hz 1 3 Octave warble tone at 20dB
this continues to track14 which is
Track 14- 20Hz 1 3 Octave warble tone at 20dB
Also a test tone that I don't know stats about and some white noise.
What frequeny and dB level do test CD's use. Can I use any of these? All of these? Sorry, I got the CD off Ebay and there are no instructions with it. If this doesn't work I will buy one. AVIA or Digital Video Essentials? What are pro's and con's of each? Also, if I can use this CD, will someone just give me a quick low-down on the procedure. I understand most of it, just not sure where to put my volume knob (negative dB Denon). I tried playing around with some test tone, sounded like a higher pitched humm. I had my SPL at 70 (radio shack) and my center put the needle right at zero at about -10dB on the master volume. The sound was coming from all front speakers, so I turned the channel dB level down on Fl, Fr so only sound was coming from center. Next I turned the center to -12 dB and turned up the Fl to 0 dB, but now the needle barely reads, even with the master volume at 0. Should I just keep turning up the volume until the SPL hits zero, even though I never listen to my speakers at more than about -15dB. Sorry this is so long. Thanks
Roly
Track 4- 200Hz 1 3 Octave warble tone at 20 dB
Track 5- 160Hz 1 3 Octave warble tone at 20dB
this continues to track14 which is
Track 14- 20Hz 1 3 Octave warble tone at 20dB
Also a test tone that I don't know stats about and some white noise.
What frequeny and dB level do test CD's use. Can I use any of these? All of these? Sorry, I got the CD off Ebay and there are no instructions with it. If this doesn't work I will buy one. AVIA or Digital Video Essentials? What are pro's and con's of each? Also, if I can use this CD, will someone just give me a quick low-down on the procedure. I understand most of it, just not sure where to put my volume knob (negative dB Denon). I tried playing around with some test tone, sounded like a higher pitched humm. I had my SPL at 70 (radio shack) and my center put the needle right at zero at about -10dB on the master volume. The sound was coming from all front speakers, so I turned the channel dB level down on Fl, Fr so only sound was coming from center. Next I turned the center to -12 dB and turned up the Fl to 0 dB, but now the needle barely reads, even with the master volume at 0. Should I just keep turning up the volume until the SPL hits zero, even though I never listen to my speakers at more than about -15dB. Sorry this is so long. Thanks
Roly
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