Tonight, I was re-calibrating my turntable using a record with sine wave test tones. I usually don't record this, but tonight I decided to. And what I found is that recordings of sine waves made with my Sound Blaster X-FI Titanium card have a whole bunch of harmonics added. A 1K tone sounds fine when I'm monitoring it, but once recorded, it now has harmonics that I can hear at 2K 4K 8K etc, decreasing in strength as it goes up the harmonic sequence (the spectral frequency display is useful here). For comparrison purposes, I tried recording the sine waves through the RealTek audio card built into my motherboard and got the same result.
Is there something that can be done for this? I'd consider buying another sound card, but the THD spec for the Sound Blaster is 0.004%. Apparently, this spec isn't of much value so I don't know how to be sure I'm buying a sound card that won't have the same problem.
J. D.
Is there something that can be done for this? I'd consider buying another sound card, but the THD spec for the Sound Blaster is 0.004%. Apparently, this spec isn't of much value so I don't know how to be sure I'm buying a sound card that won't have the same problem.
J. D.