E
Elly
New member
Can you help me identify this strange low rumble I seem to be getting in my recordings?
I noticed it when I was editing. On silent bits, the waveform sometimes seemed to be very lively. Peaking up to even -3db. I couldn't hear anything, there was no actual noise there, just these strange peaks. Then the silences would go back to just their normal peaking at -30/-25db ambient background. It turns out, you can actually hear it if you turn up the volume. It's a kind of a low rumble. With headphones, it sort of sounds like the workings of my inner ear. Weird. So must be a low frequency thing.
I have uploaded a sample from when I was about to start recording today and was getting some roomtone. It was particularly noticeable. You'll hear a couple of bits of me talking to myself (!) in this recording. And, at the end, I've just cut in a very short piece of my actual recording I did today, so you can hear what my set up sounds like when I'm recording something. It's for an audio book (not music).
MY EQUIPMENT
Microphone: Sontronics STC-2 Cardioid Condenser
Amp: ART Tube MP Tube Mic Pre-Amp
Soundcard: Creative Soundblaster X-fi Titanium HD
Software: Adobe Audition 3.0
Connections: XLR, apart from two phonos into the soundcard
SET UP
Recording in a separate room from the computer (due to fan noise). Shielded cable runs out of one window into another (it says Canford HST on it, recommended by a BBC engineer)
Microphone sits in a cradle (the one that came with it) on a tablestand
Monitoring via remote desktop over wi-fi via MacbookAir, plugged into mains
One reading lamp (LED, but was same with my old lightbulb lamp), plugged into mains
Kindle to read from on battery power
Everything else in the room unplugged from the mains apart from two table lamps over the other side of the room which are turned off
Sound dampening supplied by a homemade "tent" made of felt material and suspended over two clothes racks
Would be grateful if you could give me some pointers.
Jane
I noticed it when I was editing. On silent bits, the waveform sometimes seemed to be very lively. Peaking up to even -3db. I couldn't hear anything, there was no actual noise there, just these strange peaks. Then the silences would go back to just their normal peaking at -30/-25db ambient background. It turns out, you can actually hear it if you turn up the volume. It's a kind of a low rumble. With headphones, it sort of sounds like the workings of my inner ear. Weird. So must be a low frequency thing.
I have uploaded a sample from when I was about to start recording today and was getting some roomtone. It was particularly noticeable. You'll hear a couple of bits of me talking to myself (!) in this recording. And, at the end, I've just cut in a very short piece of my actual recording I did today, so you can hear what my set up sounds like when I'm recording something. It's for an audio book (not music).
MY EQUIPMENT
Microphone: Sontronics STC-2 Cardioid Condenser
Amp: ART Tube MP Tube Mic Pre-Amp
Soundcard: Creative Soundblaster X-fi Titanium HD
Software: Adobe Audition 3.0
Connections: XLR, apart from two phonos into the soundcard
SET UP
Recording in a separate room from the computer (due to fan noise). Shielded cable runs out of one window into another (it says Canford HST on it, recommended by a BBC engineer)
Microphone sits in a cradle (the one that came with it) on a tablestand
Monitoring via remote desktop over wi-fi via MacbookAir, plugged into mains
One reading lamp (LED, but was same with my old lightbulb lamp), plugged into mains
Kindle to read from on battery power
Everything else in the room unplugged from the mains apart from two table lamps over the other side of the room which are turned off
Sound dampening supplied by a homemade "tent" made of felt material and suspended over two clothes racks
Would be grateful if you could give me some pointers.
Jane