I've always liked the RV7000 reverb in Reason. There are some presets that I particularly like.
For a laugh, I decided to record a 'spike' through RV7000 and use it as an impulse in SIR. It was, as you'd expect, almost indistinguishable from RV7000. Which was cool, as it meant I could get a similar reverb for my tracks in Tracktion as well as the ReWired tracks.
Even though I own Reason, is it a bit... 'iffy'... to nick the impulses off the RV7000?
Impulse question. (SIR etc. and Reason).
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- AcousticHippie
- 4769 posts since 12 Mar, 2003
why should it be..... impulse responses from hardware reverbs aren't iffy either... and I think as long as you don't distribute them to non reason users there should be no prob at all....
for the rest try contacting the propheads if you're allowed to do that - it's the easiest way I guess
for the rest try contacting the propheads if you're allowed to do that - it's the easiest way I guess
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- KVRAF
- 3299 posts since 7 May, 2004 from Athens, Greece
Hi ceenda, can I ask you something? What's that "spike" . I have listened to some impulse wav files and it sounds like a short burst of noise. Care to share some details (or a link) about this procedure
Cheers
Cheers
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- KVRian
- Topic Starter
- 1022 posts since 7 Sep, 2004
multree: Yeah, the noisevault website has tons of hardware-recorded impulses. I wondered whether it was a similar system to game roms where you're supposed to have owned them before downloading them. I have to admit, I don't know what the situation is at all. It's just that in my line of work (programming) there's sometimes certain conditions related to content that prohibit it being used outside a certain context. I suppose the best thing to do is ask, like you say.
zeoy: Hiya. A 'spike' is literally a sound which is completely empty except for a 'hit' at the beginning which is usually just 1 sample long (and I mean sample as in DSP array sample, not WAV sample). In a wave editor, it would just look like an empty sample with one vertical line at the very start.
You then load this as either a sample in your track (turn off interpolation or anything, you literally want just the sample sent) and use the software reverb (RV7000, Ambience, Glaceverb, Freeverb etc.) as an insert, with throughput set to 100% (0dB) WET and 0% (-inf dB) DRY. Render the output to a file (MyImpulse.WAV). You want the reverb on it's own, not the original dry sample.
The procedure I've used is probably NOT how it should be done and hopefully someone will be able to correct me if I've made any mistakes with it. But it seems to sound pretty accurate to my ears.
zeoy: Hiya. A 'spike' is literally a sound which is completely empty except for a 'hit' at the beginning which is usually just 1 sample long (and I mean sample as in DSP array sample, not WAV sample). In a wave editor, it would just look like an empty sample with one vertical line at the very start.
You then load this as either a sample in your track (turn off interpolation or anything, you literally want just the sample sent) and use the software reverb (RV7000, Ambience, Glaceverb, Freeverb etc.) as an insert, with throughput set to 100% (0dB) WET and 0% (-inf dB) DRY. Render the output to a file (MyImpulse.WAV). You want the reverb on it's own, not the original dry sample.
The procedure I've used is probably NOT how it should be done and hopefully someone will be able to correct me if I've made any mistakes with it. But it seems to sound pretty accurate to my ears.
Last edited by ceenda on Fri Apr 15, 2005 10:15 am, edited 1 time in total.
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- KVRAF
- 1884 posts since 9 Feb, 2004 from Rochester, MN
Here's the spike. Load it in an audio track, add your VST reverb, and render the track. The rendered result can be used as an impulse in SIR or other convolution reverbs.
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- KVRAF
- 3299 posts since 7 May, 2004 from Athens, Greece
Thanx ceenda. So it's a very very short burst of noise. If I understand you correctly it should be 1/44100 sec long if you're working @44.1Khz. How do you make such a sample? Do you use any wav file, turn any snap off, zoom at sample level and keep just one sample? Should it be as loud as possible (0dB)?
If I go insane, please don't put your wires in my brain
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- KVRAF
- 3299 posts since 7 May, 2004 from Athens, Greece
Warmonger, your reply appeared as I was typing my additional questions to ceenda. Thanx to both of you guys. Time to sample my guitar ampWarmonger wrote:Here's the spike. Load it in an audio track, add your VST reverb, and render the track. The rendered result can be used as an impulse in SIR or other convolution reverbs.
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- KVRist
- 261 posts since 19 Jan, 2005
>>Do you use any wav file, turn any snap off, zoom at sample level and keep just one sample?<<
I did that, then normalized to 0dB. If you don't normalize, the impulse responses will be attenuated. (Or you could use the spike file provided above.) To get true-stereo impulse responses, I use two stereo impulse files, each with the spike on only one channel (L or R). The result is a pair of stereo responses, one for each channel of input audio. (Using these in SIR requires a bit of fiddling around.)
Just a warning in case you didn't know this:
Sampling a guitar amp will give you the frequency/phase response, resonance, etc. of the signal chain (including speaker+mic if that's what you mean, and reverb if there is one) at the level of the spike, which is great as far as it goes - but you can't properly capture distortion, because harmonic distortion is nonlinear, and the whole impulse response/convolution thing assumes a linear system.
I did that, then normalized to 0dB. If you don't normalize, the impulse responses will be attenuated. (Or you could use the spike file provided above.) To get true-stereo impulse responses, I use two stereo impulse files, each with the spike on only one channel (L or R). The result is a pair of stereo responses, one for each channel of input audio. (Using these in SIR requires a bit of fiddling around.)
Just a warning in case you didn't know this:
Sampling a guitar amp will give you the frequency/phase response, resonance, etc. of the signal chain (including speaker+mic if that's what you mean, and reverb if there is one) at the level of the spike, which is great as far as it goes - but you can't properly capture distortion, because harmonic distortion is nonlinear, and the whole impulse response/convolution thing assumes a linear system.