| View previous topic :: View next topic |
| Author |
|Message |
JJ Semple Voice Talent

Joined: 18 Feb 2008 Posts: 17
|
Posted: Wed Jun 04, 2008, 20:42 (GMT) Post subject: Distortion |
|
|
So now I have distortion. What about the buzz? Was that better? Could the distortion be the preamp settings or the compression I added in post? I certainly wasn't screaming in the mic.
I'm adding an unprocessed version of the file.
I'm not an audio pro like you guys, but I do want to set up a home studio for recording audiobooks. Thanks to everyone!
| Description: |
|
 Download |
| Filename: |
SM7bTestShort02.mp3 |
| Filesize: |
201.4 KB |
| Downloaded: |
53 Time(s) |
|
|
| Back to top |
|
John Weeks Voice Talent

Joined: 04 Jun 2005 Posts: 186
|
Posted: Wed Jun 04, 2008, 21:07 (GMT) Post subject: |
|
|
The distortion sounds better on this file. I don't hear a buzz, only a good bit of hiss.
_________________ John Weeks
www.johnweeksaudio.com |
|
| Back to top |
|
Josh Mahler Voice Talent
Joined: 03 Oct 2005 Posts: 44
|
Posted: Wed Jun 04, 2008, 21:37 (GMT) Post subject: |
|
|
Yeah, I also still hear some funky stuff going on. How about posting a sample with the Summit out of the equation? Just the mic straight to one of the MOTU pre's. That will let us know if the Summit pre is contributing to the problem.
I ask you to do that because at a time I had a problem with my Safesound creating some weirdness. It turned out to be a grounding problem and a 3 prong to 2 prong adapter on the power cord helped.
_________________ http://www.vocalvoodoo.com
http://www.myspace.com/Vocalvoodoo |
|
| Back to top |
|
Eddie Eagle Voice Talent - Voice Seeker

Joined: 15 Sep 2004 Posts: 25
|
Posted: Thu Jun 05, 2008, 18:24 (GMT) Post subject: |
|
|
Here's a trailer I put together for a fictional movie. I did a mix of 2 mics together. MKH415 and NTK.
| Description: |
|
 Download |
| Filename: |
WOD2.mp3 |
| Filesize: |
2.71 MB |
| Downloaded: |
56 Time(s) |
|
|
| Back to top |
|
JJ Semple Voice Talent

Joined: 18 Feb 2008 Posts: 17
|
Posted: Thu Jun 05, 2008, 21:53 (GMT) Post subject: |
|
|
Here are two tests: one without the Summit preamp and one with. The test with the MOTU alone (no preamp) has two samples because the MOTU gain is limited to +24dB. So I included a sample that has compression and gain added. Otherwise, the level is very low because the mic, which is spec'd at -60dB, doesn't get enough power. I don't know how to get anymore out of it without a preamp.
And that's why I have the Summit because it has both Mic and Tube gains. Only problem is, I now have all the hiss and buzz I can handle.
The MOTU alone, even with compression and gain added seems quieter, even though it was recorded in a noisier room. I don't think that lowering the gain on the Summit will help diminish the noise.
I never had a problem with the Summit before and am not sure what to do about it. It would be nice if it was only a "3 prong to 2 prong adapter" issue.
| Description: |
|
 Download |
| Filename: |
SM7bTest03b.mp3 |
| Filesize: |
700.41 KB |
| Downloaded: |
64 Time(s) |
| Description: |
| SM7b > MOTU with compression |
|
 Download |
| Filename: |
SM7bTest03dComp02.mp3 |
| Filesize: |
742.86 KB |
| Downloaded: |
50 Time(s) |
| Description: |
| SM7b > MOTU | raw, no compression |
|
 Download |
| Filename: |
SM7bTest03d.mp3 |
| Filesize: |
755.51 KB |
| Downloaded: |
52 Time(s) |
|
|
| Back to top |
|
Lance Blair Voice Talent - Voice Seeker

Joined: 25 Apr 2005 Posts: 591
|
|
| Back to top |
|
JJ Semple Voice Talent

Joined: 18 Feb 2008 Posts: 17
|
Posted: Fri Jun 06, 2008, 00:26 (GMT) Post subject: Settings |
|
|
For the Summit recording I had the:
Tube gain = 3:00 O'Clock
Mic gain = 5:00
Impedance = 8:30
Hi-Pass = 12:00
Shure SM7b > via XLR balanced cable > mic input on back of Summit; Summit XLR +4dB (bal) output > via XLR to 1/4" balanced (tip/ring/sleeve) cable > 1/4" +4dB (bal) #5 input of MOTU Ultralite.
The same mic cable was used in the recording that bypassed the Summit.
|
|
| Back to top |
|
Lance Blair Voice Talent - Voice Seeker

Joined: 25 Apr 2005 Posts: 591
|
|
| Back to top |
|
Josh Mahler Voice Talent
Joined: 03 Oct 2005 Posts: 44
|
Posted: Fri Jun 06, 2008, 04:47 (GMT) Post subject: |
|
|
There was a slight buzz with the Summit which wasn't there with just the MOTU. What about trying the Summit with just solid state gain and no tube gain? I'd like to hear that if you get a chance. Maybe a bad tube could be causing buzz?
Somehing to keep in mind. While the solid state stage may not have enough gain to push the SM7b to 0db, that's ok. When going digital, especially 24bit, you don't need to record even close to that hot. -18 to -12db should be fine sonically. That way you're cutting down on preamp noise because you're not pushing it so hard.
I agree with checking the cables. If the mic cable doesn't change anything, I'd go ahead and check the cables from the Summit to the MOTU also.
_________________ http://www.vocalvoodoo.com
http://www.myspace.com/Vocalvoodoo |
|
| Back to top |
|
JJ Semple Voice Talent

Joined: 18 Feb 2008 Posts: 17
|
Posted: Fri Jun 06, 2008, 18:48 (GMT) Post subject: Solid State Gain Only |
|
|
I enclose a solid state gain only test. NO Tube gain! No compression, no post processing.
Low levels but a lot cleaner. Would it be usable if skillfully mastered?
Am interested to hear your comments. Thanks, JJ
| Description: |
|
 Download |
| Filename: |
SM7bTest03e02.mp3 |
| Filesize: |
470.13 KB |
| Downloaded: |
44 Time(s) |
|
|
| Back to top |
|
Rick Blade Voice Talent

Joined: 10 Aug 2005 Posts: 1
|
|
| Back to top |
|
Don Capone Voice Talent

Joined: 13 Jul 2007 Posts: 89
|
|
| Back to top |
|
John Weeks Voice Talent

Joined: 04 Jun 2005 Posts: 186
|
Posted: Sat Jun 07, 2008, 23:01 (GMT) Post subject: |
|
|
JJ:
Distortion is gone now. You just need more level going in. That should lower the noise floor. I don't think recording at this low a level and then bringing it up in mastering is the answer. It will bring the noise up as well. You just need more juice on the input of the preamp.
Good Luck!
Rick and Don:
I'm still loving my AK-47!
_________________ John Weeks
www.johnweeksaudio.com |
|
| Back to top |
|
Lance Blair Voice Talent - Voice Seeker

Joined: 25 Apr 2005 Posts: 591
|
|
| Back to top |
|
JJ Semple Voice Talent

Joined: 18 Feb 2008 Posts: 17
|
Posted: Tue Jun 10, 2008, 13:37 (GMT) Post subject: Samples for Josh Mahler |
|
|
Josh,
I posted a sample as per your suggestion. Several members have said the level is too low, but I haven't heard from you. Since you had the original idea of recording at a lower level with Tube gain only -- which I did -- I'd like to hear from you. Your idea was that boosting the levels in post could make a take acceptable, especially in digital. Do you think the -12dB level in this recording is sufficient to make an acceptable master.
I ask this because the humm seems to be coming from the Tube gain, so without it there's not much level, even with the SS gain all the way up. If it's a bad tube, I can get Summit on the case, but I'd like to get your feedback on this first...
I enclose two samples:
1) without post processing
2) with compression and added gain
Am I getting there? Or are there still issues?
Thanks, JJ
| Description: |
| With compression and gain added |
|
 Download |
| Filename: |
SM7bTest03eb.mp3 |
| Filesize: |
713.06 KB |
| Downloaded: |
34 Time(s) |
| Description: |
|
 Download |
| Filename: |
SM7bTest03e02.mp3 |
| Filesize: |
470.13 KB |
| Downloaded: |
30 Time(s) |
|
|
| Back to top |
|
|