MysteryMan
Prominent Member
I have a suspicion that my HiFi speakers are not playing sounds consistently across the frequency range, so, I am trying to investigate. However, I am wondering if my lack of some basic knowledge about sounds is causing me problems! I will explain what I am planning to do.....
I have got a copy of a program called NCH Tone Generator, which allows me to specify a frequency and then save a .wav file with a tone of that frequency playing for 10 seconds. I have laboriously gone through and created files from 10Hz to 400Hz in 10Hz steps.
Armed with a sound meter I plan to play the tones through my system and record what the decibel level is for each frequency to see if there are any obvious areas that it is lacking.
Assuming I am in the range that my speakers can reproduce would you expect them all to be at a similar level or do different frequencies play back at different levels?
The reason I ask I is that I have just played them back on my PC speakers and the level is in the 60s from 60-200 and then jumps to 80s 200-360 and then 74 at 380 and 78 at 400.
Would you expect this sort of variation as you move up the frequency range?
I have got a copy of a program called NCH Tone Generator, which allows me to specify a frequency and then save a .wav file with a tone of that frequency playing for 10 seconds. I have laboriously gone through and created files from 10Hz to 400Hz in 10Hz steps.
Armed with a sound meter I plan to play the tones through my system and record what the decibel level is for each frequency to see if there are any obvious areas that it is lacking.
Assuming I am in the range that my speakers can reproduce would you expect them all to be at a similar level or do different frequencies play back at different levels?
The reason I ask I is that I have just played them back on my PC speakers and the level is in the 60s from 60-200 and then jumps to 80s 200-360 and then 74 at 380 and 78 at 400.
Would you expect this sort of variation as you move up the frequency range?