Dear HTShack-mites
I am about top start sound calibration of my first HT.Before I start thread of my own just need some inputs to get my basics right for calibration process.
1) For sound clalibration ,do you take readings from individual speakers(L,C,R etc) or just from Right speaker
2) My front speakers are full range but I would cut over them at 80 hz for movies and would run them full range for music.Do you calibrate front left and right full range or only as bass limited speaker or should I do both?
3) Mostly I have seen people working on low frequencies an applying filters etc but what about high range frequencies between 200 Hz and 20000 Hz? How do you make them flat. Do you EQ them as well or absorption is the answer?
4) I have a velodyne SPL 1200R which has inbuilt parametric Equalizer, Do I still need BFD?
5) I am running pre and pro and have adjusted the power amps individual gain level to sound at 75 DB with receivers sound level set to 0 DB. All my speakers are now sounding(Pink Noise from CD) 75 Db at 0 Db of receiver.Is that a right approach?
6) when I had set Levels using REWS, the SPL meters output gain is so low that I have to increase receivers volume to +7db for SPL meter to show 75 DB.Now my Test CD adjustments and REWS Level adjustments are 7 DB apart. Which one should use as reference for 75 DB volume?
7) I am using Radio shack SPL meter and when I generate measurement tone from REWS I get different sound pressure level as compared to what I get If I run test tone CD.Which is the right approach?
So far I have calibrated my Creative x-fI sound card, set the levels and calibrated SPL reading between shack meter and REWS.
Thanks,
Puneet
I am about top start sound calibration of my first HT.Before I start thread of my own just need some inputs to get my basics right for calibration process.
1) For sound clalibration ,do you take readings from individual speakers(L,C,R etc) or just from Right speaker
2) My front speakers are full range but I would cut over them at 80 hz for movies and would run them full range for music.Do you calibrate front left and right full range or only as bass limited speaker or should I do both?
3) Mostly I have seen people working on low frequencies an applying filters etc but what about high range frequencies between 200 Hz and 20000 Hz? How do you make them flat. Do you EQ them as well or absorption is the answer?
4) I have a velodyne SPL 1200R which has inbuilt parametric Equalizer, Do I still need BFD?
5) I am running pre and pro and have adjusted the power amps individual gain level to sound at 75 DB with receivers sound level set to 0 DB. All my speakers are now sounding(Pink Noise from CD) 75 Db at 0 Db of receiver.Is that a right approach?
6) when I had set Levels using REWS, the SPL meters output gain is so low that I have to increase receivers volume to +7db for SPL meter to show 75 DB.Now my Test CD adjustments and REWS Level adjustments are 7 DB apart. Which one should use as reference for 75 DB volume?
7) I am using Radio shack SPL meter and when I generate measurement tone from REWS I get different sound pressure level as compared to what I get If I run test tone CD.Which is the right approach?
So far I have calibrated my Creative x-fI sound card, set the levels and calibrated SPL reading between shack meter and REWS.
Thanks,
Puneet