I often find I need to EQ sounds to remove a spike at around 150hz.. sometimes it's 160, sometimes 155, sometimes 148-ish...
the fact that it happens often makes me worry... it means a possibilty of a few things:
1. I'm consistently recording spikes through the combination of my recording techniques & equipment
2. I'm consistently playing back spikes with my system (including the less-than-ideal room I'm listening in)
3. My ears create spikes at 150hz! (no, because then EVERYTHING I'd ever hear in day to day life would be that way, and I wouldn't notice any differences)
It's probably a little bit of #1, but I'm quite sure it's mostly #2 because listening back on headphones, there's no jump in frequency that I'd call a spike... I mean, I can still hear a little something, but definitely not a spike
I should mention, this spike is present on things recorded from various locations (ie-not only things tracked in the same room I'm mixing), which further shows me that it's not #1 (my tracking)
Anyway, please download the following WAV (roughly 1.7MB)... It's the bass gtr soloed... playing a line in 4 beats per pitch...recorded in a church:
Download wav here (right click "save as" for PC, or control click "download linked file" for Mac)
the second group of 4 beats (the second pitch) is where I hear a ridiculous spike mostly around 150HZ-160HZ... It is very obvious... do you guys hear it? It seems like this overtone is present throughout the clip, and comes to the forefront when certain notes are played (when it vibrates in sympathy with the overtone, in other words)
If you guys can't hear this spike, that's good in a way, it means at least my tracking is good and I just need to improve my listing conditions... kind of nerve-wracking though that there's uncertainty to what I'm listening
----
How should I go about fixing this problem?
I'm in a mostly-bright attic. Wood floor, plaster and drywall walls...
About 15 feet long by 12 feet wide by 7.5 feet tall, with the slanted ceiling running lengthwise (see attached image below...this is simplified)
the audio monitors are a little close to the wall behind them. Could pull out a foot, but will that do much? (FYI: they're Yorkville YSM1P, with "normal" and 1/4 room switches enabled... that keeps the top end flat and attenuates -2db below 80hz)
I've tried decoupling them by putting them on four 1/2 inch sheets of blue foam (cut up from the foam mattress you sleep on for camping), but maybe this foam is too dense and doesn't do enough. What foam is best?
As for the walls, egg crate foam won't do anything for such a low frequency spike... I need some sort of bass trap... a resonating one, right? Any suggestions on where to find plans for building one? And would I build only one? And where would I place it?
Thanks for your help & patience
Sincerely
Pietro
the fact that it happens often makes me worry... it means a possibilty of a few things:
1. I'm consistently recording spikes through the combination of my recording techniques & equipment
2. I'm consistently playing back spikes with my system (including the less-than-ideal room I'm listening in)
3. My ears create spikes at 150hz! (no, because then EVERYTHING I'd ever hear in day to day life would be that way, and I wouldn't notice any differences)
It's probably a little bit of #1, but I'm quite sure it's mostly #2 because listening back on headphones, there's no jump in frequency that I'd call a spike... I mean, I can still hear a little something, but definitely not a spike
I should mention, this spike is present on things recorded from various locations (ie-not only things tracked in the same room I'm mixing), which further shows me that it's not #1 (my tracking)
Anyway, please download the following WAV (roughly 1.7MB)... It's the bass gtr soloed... playing a line in 4 beats per pitch...recorded in a church:
Download wav here (right click "save as" for PC, or control click "download linked file" for Mac)
the second group of 4 beats (the second pitch) is where I hear a ridiculous spike mostly around 150HZ-160HZ... It is very obvious... do you guys hear it? It seems like this overtone is present throughout the clip, and comes to the forefront when certain notes are played (when it vibrates in sympathy with the overtone, in other words)
If you guys can't hear this spike, that's good in a way, it means at least my tracking is good and I just need to improve my listing conditions... kind of nerve-wracking though that there's uncertainty to what I'm listening
----
How should I go about fixing this problem?
I'm in a mostly-bright attic. Wood floor, plaster and drywall walls...
About 15 feet long by 12 feet wide by 7.5 feet tall, with the slanted ceiling running lengthwise (see attached image below...this is simplified)
the audio monitors are a little close to the wall behind them. Could pull out a foot, but will that do much? (FYI: they're Yorkville YSM1P, with "normal" and 1/4 room switches enabled... that keeps the top end flat and attenuates -2db below 80hz)
I've tried decoupling them by putting them on four 1/2 inch sheets of blue foam (cut up from the foam mattress you sleep on for camping), but maybe this foam is too dense and doesn't do enough. What foam is best?
As for the walls, egg crate foam won't do anything for such a low frequency spike... I need some sort of bass trap... a resonating one, right? Any suggestions on where to find plans for building one? And would I build only one? And where would I place it?
Thanks for your help & patience
Sincerely
Pietro
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