Microphone orientation?

Harrycr

Member
Thread Starter
Joined
Apr 22, 2020
Messages
129
Hello
I have been looking online and appears (maybe the videos i have watched) say that 90 degrees for the mic is recommended.
Yet there are people that say 0 degrees is recommended.

This is assuming there is both calibartion files availabe.

Is there a standard yes or no?
 

ddude003

AV Addict
Joined
Aug 13, 2017
Messages
1,490
Location
Somewhere Northeast of Kansas City Missouri
More  
Preamp, Processor or Receiver
PrimaLuna Dialogue Premium TubePre (2 channel+sub)
Main Amp
McIntosh MC152 SS Amp (2 channel)
Additional Amp
Yamaha RX-A850 Pro (the other 5 channels lol)
Computer Audio
MacBook Pro, Custom i7 7700k De-lid 2xAsus1080ti GFX, Audirvana Studio, Hang Loose Convolver, Tone Projects Michelangelo, Pulsar Massive & 8200, LiquidSonics, SoX
DAC
Chord Electronics Ltd. Qutest
Universal / Blu-ray / CD Player
Sony UBP-X700 /M Ultra HD 4K HDR & PS5
Front Speakers
Martin Logan ElectroMotion ESL
Center Channel Speaker
Martin Logan Motion C2
Surround Speakers
Martin Logan Motion 4
Surround Back Speakers
Martin Logan Motion 4 (yes, another set of these)
Subwoofers
Martin Logan Dynamo 700
Other Speakers or Equipment
Cifte 12AU7 NOS & Genalex Gold Lion Tubes in Pre
Video Display Device
Samsung The Premiere LSP7T UST Laser Projector
Screen
Elite Screens Aeon CLR3 0.8 Gain 103-inch
Remote Control
PrimaLuna, Lumin iApp, Samsung & Yamaha
Streaming Equipment
Netgear Nighthawk S8000 Streaming Switch, Lumin U1 Mini Streamer Transport
Streaming Subscriptions
QoBuz Studio Premier, Amazon Prime & Netflix
Other Equipment
ThrowRug, SaddleBlankets, WideBand & Bass Traps...
A standard? Lol... There is no Good Housekeeping Seal of Approval here... Maybe some best practices...
The 0 deg calibration file is for Stereo and 2.1/2.2 systems... Point the microphone towards the sound source being measured or point the microphone to the center point between the 2 speakers... This is the so-called on-axis calibration file...
The 90 deg calibration is used for surround sound measurements in multichannel applications... Point the microphone towards the ceiling...
 

teyhyrh4r

Member
Joined
Aug 7, 2019
Messages
56
if it is 0 deg, it should be pointed directly to the source. if you point it at center between 2 the mic will capture a little less treble than there is
 

ddude003

AV Addict
Joined
Aug 13, 2017
Messages
1,490
Location
Somewhere Northeast of Kansas City Missouri
More  
Preamp, Processor or Receiver
PrimaLuna Dialogue Premium TubePre (2 channel+sub)
Main Amp
McIntosh MC152 SS Amp (2 channel)
Additional Amp
Yamaha RX-A850 Pro (the other 5 channels lol)
Computer Audio
MacBook Pro, Custom i7 7700k De-lid 2xAsus1080ti GFX, Audirvana Studio, Hang Loose Convolver, Tone Projects Michelangelo, Pulsar Massive & 8200, LiquidSonics, SoX
DAC
Chord Electronics Ltd. Qutest
Universal / Blu-ray / CD Player
Sony UBP-X700 /M Ultra HD 4K HDR & PS5
Front Speakers
Martin Logan ElectroMotion ESL
Center Channel Speaker
Martin Logan Motion C2
Surround Speakers
Martin Logan Motion 4
Surround Back Speakers
Martin Logan Motion 4 (yes, another set of these)
Subwoofers
Martin Logan Dynamo 700
Other Speakers or Equipment
Cifte 12AU7 NOS & Genalex Gold Lion Tubes in Pre
Video Display Device
Samsung The Premiere LSP7T UST Laser Projector
Screen
Elite Screens Aeon CLR3 0.8 Gain 103-inch
Remote Control
PrimaLuna, Lumin iApp, Samsung & Yamaha
Streaming Equipment
Netgear Nighthawk S8000 Streaming Switch, Lumin U1 Mini Streamer Transport
Streaming Subscriptions
QoBuz Studio Premier, Amazon Prime & Netflix
Other Equipment
ThrowRug, SaddleBlankets, WideBand & Bass Traps...
This is a direct quote from the folks at MiniDSP:

"We provide two calibration files to be used depending on your application.

- For stereo system (e.g. 2ch dirac live, single speaker measurement), use the 0deg file and point the UMIK-1 at the speakers
- For multichannel system (E.g. 5.1/7.1) or a surround application where multiple speakers are spreadout around the room, use the 90deg file and point the UMIK-1 at the ceiling."

Again, depends on the application... Since there is no "Standard" you are welcome to do as you please...
 

ddude003

AV Addict
Joined
Aug 13, 2017
Messages
1,490
Location
Somewhere Northeast of Kansas City Missouri
More  
Preamp, Processor or Receiver
PrimaLuna Dialogue Premium TubePre (2 channel+sub)
Main Amp
McIntosh MC152 SS Amp (2 channel)
Additional Amp
Yamaha RX-A850 Pro (the other 5 channels lol)
Computer Audio
MacBook Pro, Custom i7 7700k De-lid 2xAsus1080ti GFX, Audirvana Studio, Hang Loose Convolver, Tone Projects Michelangelo, Pulsar Massive & 8200, LiquidSonics, SoX
DAC
Chord Electronics Ltd. Qutest
Universal / Blu-ray / CD Player
Sony UBP-X700 /M Ultra HD 4K HDR & PS5
Front Speakers
Martin Logan ElectroMotion ESL
Center Channel Speaker
Martin Logan Motion C2
Surround Speakers
Martin Logan Motion 4
Surround Back Speakers
Martin Logan Motion 4 (yes, another set of these)
Subwoofers
Martin Logan Dynamo 700
Other Speakers or Equipment
Cifte 12AU7 NOS & Genalex Gold Lion Tubes in Pre
Video Display Device
Samsung The Premiere LSP7T UST Laser Projector
Screen
Elite Screens Aeon CLR3 0.8 Gain 103-inch
Remote Control
PrimaLuna, Lumin iApp, Samsung & Yamaha
Streaming Equipment
Netgear Nighthawk S8000 Streaming Switch, Lumin U1 Mini Streamer Transport
Streaming Subscriptions
QoBuz Studio Premier, Amazon Prime & Netflix
Other Equipment
ThrowRug, SaddleBlankets, WideBand & Bass Traps...
Maybe I am missing something here... What speaker is the mic pointing at (90 degrees) when one measures for a multichannel system? Maybe we need an application that can calculate the difference between 0 and 90 degrees calibration files for the in-between applications... :ponder:
 

teyhyrh4r

Member
Joined
Aug 7, 2019
Messages
56
Maybe I am missing something here... What speaker is the mic pointing at (90 degrees) when one measures for a multichannel system? Maybe we need an application that can calculate the difference between 0 and 90 degrees calibration files for the in-between applications... :ponder:

the ceiling, as you mentioned, is likely acceptable in that situation. However, I personally have concerns about accentuating the reflection from the ceiling. Nevertheless, the impact of this reflection is probably insignificant.

Personally, I prefer to readjust the microphone for each individual speaker (0 degrees). It's not just a matter of orientation, but I want the microphone to be positioned where my ear would be (left ear for the left speaker, right ear for the right speaker), rather than in the middle of my head.
 

ddude003

AV Addict
Joined
Aug 13, 2017
Messages
1,490
Location
Somewhere Northeast of Kansas City Missouri
More  
Preamp, Processor or Receiver
PrimaLuna Dialogue Premium TubePre (2 channel+sub)
Main Amp
McIntosh MC152 SS Amp (2 channel)
Additional Amp
Yamaha RX-A850 Pro (the other 5 channels lol)
Computer Audio
MacBook Pro, Custom i7 7700k De-lid 2xAsus1080ti GFX, Audirvana Studio, Hang Loose Convolver, Tone Projects Michelangelo, Pulsar Massive & 8200, LiquidSonics, SoX
DAC
Chord Electronics Ltd. Qutest
Universal / Blu-ray / CD Player
Sony UBP-X700 /M Ultra HD 4K HDR & PS5
Front Speakers
Martin Logan ElectroMotion ESL
Center Channel Speaker
Martin Logan Motion C2
Surround Speakers
Martin Logan Motion 4
Surround Back Speakers
Martin Logan Motion 4 (yes, another set of these)
Subwoofers
Martin Logan Dynamo 700
Other Speakers or Equipment
Cifte 12AU7 NOS & Genalex Gold Lion Tubes in Pre
Video Display Device
Samsung The Premiere LSP7T UST Laser Projector
Screen
Elite Screens Aeon CLR3 0.8 Gain 103-inch
Remote Control
PrimaLuna, Lumin iApp, Samsung & Yamaha
Streaming Equipment
Netgear Nighthawk S8000 Streaming Switch, Lumin U1 Mini Streamer Transport
Streaming Subscriptions
QoBuz Studio Premier, Amazon Prime & Netflix
Other Equipment
ThrowRug, SaddleBlankets, WideBand & Bass Traps...
I'm glad that works for you... I have tried both ways with my ML ESLs, a hybrid dipole design, and found in my room with my kit and my ears/brain pointing the microphone from the MLP to the center point between the 2 speakers, at ear level, gives me a nice room correction baseline for my convolver... Any additional tone shaping, sweeting, and/or additional EQing is done on the fly with either a Massive Passive or GML 8200 emulation plugin...
 
Last edited:

DanDan

Moderator
Staff member
Joined
Mar 10, 2018
Messages
755
Messy topic. If Mics were truly Omni the question would not arise. Clearly most mics hear most and best when pointed directly at source. Pointing at the ceiling (or a carpeted floor) hears all speakers equally but sub optimally.
 
Last edited:
Top Bottom