Become a Site Supporter and Never see Ads again!

Author Topic: What is going on here?  (Read 1031 times)

0 Members and 1 Guest are viewing this topic.

Offline vwmule

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1574
  • Gender: Male
What is going on here?
« on: November 07, 2017, 12:13:29 PM »
I recorded Oteil and Friends last night in Silver Spring, Md., outside Washington. Strong performance and the sound was probably the best I've heard at the Fillmore, no doubt helped by venue allowing us to set up DFC rather than off to the side of board as is standard.

Yet listening to the recording reveals some really strange, annoying sound fluctuations. The volume will suddenly increase or decrease, giving a sorta "wavy" feel to certain passages. It's a bear to listen to.

A good example is Bertha: https://archive.org/details/oteil2017-11-06/oteil2017-11-06.vwmule.t14.flac

I cannot figure out what is up.

- Doesn't seem to be a loose cable; I inspected L and R channels and the fluctuation is present in each.
- The recorder settings were not changed, though before the show I upgraded to the latest MixPre firmware.
- I noticed some swaying of the stand when the audience started dancing, but nothing extreme. Could it be phasing? If so, I've never experienced anything like that.
- Could it be the venue PA? I didn't notice it at the show.

I'd appreciate any observations, thoughts you might have.
« Last Edit: November 07, 2017, 12:48:59 PM by vwmule »

Offline lsd2525

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1689
  • Gender: Male
  • Eschew obfuscation
Re: What is going on here?
« Reply #1 on: November 07, 2017, 12:23:05 PM »
Paging Gordon. He reported similar issues with his Mix Pre at NMAS the other night. Not sure if he got it sorted out.
Mics: ADK A51s; AT4041; Superlux S502; CK91 active w/homebrew BB; AT853; Naiant X-X; Nak 300's
Recorders: M10; DR-60D; DR-70D

Offline IMPigpen

  • Trade Count: (0)
  • Taperssection Newbie
  • *
  • Posts: 24
Re: What is going on here?
« Reply #2 on: November 07, 2017, 12:34:34 PM »
I listened to the Bertha from your source and also the AKG C1000 source on archive and it's not a venue/PA issue since it's not present on the other source.  Very weird....
Mics: Neumann KM184s; Naiant X-R omnis
Recorders: Tascam DR-60Dmkii

Offline vwmule

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1574
  • Gender: Male
Re: What is going on here?
« Reply #3 on: November 07, 2017, 12:41:54 PM »
Thanks. I was waiting to compare with another source and hadn't seen that one.

You're right; it's not a venue thing.
« Last Edit: November 07, 2017, 12:50:01 PM by vwmule »

Offline Gutbucket

  • record > listen > revise technique
  • Trade Count: (13)
  • Needs to get out more...
  • *****
  • Posts: 11537
  • Gender: Male
Re: What is going on here?
« Reply #4 on: November 07, 2017, 12:55:53 PM »
Hey Alex, I suspect an issue with the Mixpre.  Maybe phantom power fluctuations.  It's not unlike the problem I and other folks were occasionally having a few years back with the Tascam DR-680, generally thought to be related to powering/overheating.  That firmware update is suspect to my way of thinking.

Bummer.  That recording sounds great otherwise.
volition > vibrations > voltages > numeric values | numeric values > voltages > vibrations > virtual teleportation time-machine experience

Offline vwmule

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1574
  • Gender: Male
Re: What is going on here?
« Reply #5 on: November 07, 2017, 01:12:59 PM »
Total bummer (I'm going to have the recording removed but wanted to allow others to inspect). I'll go back to the older firmware, which I had no issues with.

Any other thoughts?
« Last Edit: November 07, 2017, 01:18:13 PM by vwmule »

Offline dallman

  • Trade Count: (27)
  • Taperssection All-Star
  • ****
  • Posts: 1511
  • Gender: Male
    • Clifford Morse
Re: What is going on here?
« Reply #6 on: November 07, 2017, 01:36:03 PM »
Total bummer (I'm going to have the recording removed but wanted to allow others to inspect). I'll go back to the older firmware, which I had no issues with.

Any other thoughts?
I would contact Sound Devices . They are always actively involved and quick to respond. I am sure they would want to address an issue like this immediately.
Support Live Music: Tape A Show Today!
Deck>possibly something here> Mics

Offline Gordon

  • Trade Count: (18)
  • Needs to get out more...
  • *****
  • Posts: 10193
  • Gender: Male
    • my list
Re: What is going on here?
« Reply #7 on: November 07, 2017, 01:40:26 PM »
Exact same issues with both mine and jbells the other night! I'm out and about now but can post samples later when I get home. Gotta be firmware. I was thinking maybe channel linking but who knows. Where your channels linked?
Neumann ak40 > Nick mod lc3 > Naiant PFA or km140 > Sound Devices MixPre-6


http://www.archive.org/bookmarks/gordonlw

Offline Gordon

  • Trade Count: (18)
  • Needs to get out more...
  • *****
  • Posts: 10193
  • Gender: Male
    • my list
Re: What is going on here?
« Reply #8 on: November 07, 2017, 01:42:07 PM »
Total bummer (I'm going to have the recording removed but wanted to allow others to inspect). I'll go back to the older firmware, which I had no issues with.

Any other thoughts?

Fwi I painstakingly edited mine and it's not too bad but it took a while!  I sent Paul from SD a pm about it this morning.
Neumann ak40 > Nick mod lc3 > Naiant PFA or km140 > Sound Devices MixPre-6


http://www.archive.org/bookmarks/gordonlw

Offline vwmule

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1574
  • Gender: Male
Re: What is going on here?
« Reply #9 on: November 07, 2017, 01:54:43 PM »
> Exact same issues with both mine and jbells the other night! I'm out and about now but can post samples later when I get home. Gotta be firmware.

Were you using the latest firmware?

My settings show linked.

Offline dallman

  • Trade Count: (27)
  • Taperssection All-Star
  • ****
  • Posts: 1511
  • Gender: Male
    • Clifford Morse
Re: What is going on here?
« Reply #10 on: November 07, 2017, 01:56:21 PM »
Exact same issues with both mine and jbells the other night! I'm out and about now but can post samples later when I get home. Gotta be firmware. I was thinking maybe channel linking but who knows. Where your channels linked?
This could be an (the) issue. I unlinked my channels just before a show because I didn't like the way the meters looked. I was running the new firmware, and had no issues after. That does not prove anything, but it is a possibility unless others having the issue were not linked.
Support Live Music: Tape A Show Today!
Deck>possibly something here> Mics

Offline willndmb

  • Trade Count: (17)
  • Needs to get out more...
  • *****
  • Posts: 6533
  • Gender: Male
Re: What is going on here?
« Reply #11 on: November 07, 2017, 02:23:37 PM »
Are you guys using "proper powering"?
I.e. Green light and not orange
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline rippleish20

  • Trade Count: (6)
  • Taperssection Member
  • ***
  • Posts: 421
Re: What is going on here?
« Reply #12 on: November 07, 2017, 02:30:48 PM »
I recorded several shows in the last week and did not have this particular problem (I did have a strange issue one night where is decided it couldnt see my sd card when I hit record but..). I did not upgrade from 1.11 however ...
« Last Edit: November 07, 2017, 02:57:54 PM by rippleish20 »
MK22's / MK41's / MK41v's (for sale) / MK4v's / MK4's / AKG C480Bs+ck61, ck63 / Telefunken FET M60 Cards and Hypers (for sale) / AT853s (for sale)
KCY 250/5 and Nbob KCY (x2) > naiant PFA or IPA or Nbox  / SP-SPSB-11 Battery Box
Zoom F8 (for sale) / Sony M-10 / Mixpre-6 / Tascam DR-100mkIII

Offline vwmule

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1574
  • Gender: Male
Re: What is going on here?
« Reply #13 on: November 07, 2017, 02:35:07 PM »
> Are you guys using "proper powering"?

Mine is green, always has been.

Offline vwmule

  • Trade Count: (11)
  • Taperssection All-Star
  • ****
  • Posts: 1574
  • Gender: Male
Re: What is going on here?
« Reply #14 on: November 07, 2017, 02:52:03 PM »
As it happens, I'm seeing Oteil tomorrow in Baltimore and will run the MP6 with the previous firmware. Will also run mics into Zoom F8.

 

RSS | Mobile
Page created in 0.219 seconds with 37 queries.
© 2002-2017 Taperssection.com
Powered by SMF
Website Design by Foxtrot Media, Inc., a Baltimore Website Company