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Author Topic: Need an opinion on a small live room acoustics plan (3D sketch included)  (Read 23816 times)

woodnote

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Hi, i have a 3 x 3 meters room, and i want to turn it into a live recording room (just for recording, not mixing). i know the room size is bad and its kind of a cube, but thats what i got. also, unfortunately the closet you see must stay there.
all of the acoustic treatment is going to be DIY.

the room is going to be used for acoustic guitar and vocals.

the things you see on the walls with the horizontal lines represent QRD 1 dimensional deiffusers, and the other ones are rockwool absorbers. the diffusers would be with a design frequency of about 700-900Hz.

what do you think about the diffusers? will it help or am i better off with more absorbers instead? also, i can add more absorbers to this plan.

here are the sketches:



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Thomas@Northward

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You should check the modal response with one of the many online tools ... It may well be that the main resonances in a 3/3 room are just in the middle of the lower voice frequencies. In that case, you'll have no other choice but heavily treat the room.
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woodnote

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You should check the modal response with one of the many online tools ... It may well be that the main resonances in a 3/3 room are just in the middle of the lower voice frequencies. In that case, you'll have no other choice but heavily treat the room.

On another forum someone suggested that the best treatment for this kind of room is tuned slot walls on two adjacent walls and absorption the other two (after testing for the needed frequencies). do you think the same? i just wanna get another opinion.
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boggy

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I agree with Thomas, you may heavily treat your room, if you find recordings unacceptable from this room without treatment.
After heavy treatment, if you still need some liveliness in your recordings use binary diffusers over your heavy absorption treatment.
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woodnote

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I agree with Thomas, you may heavily treat your room, if you find recordings unacceptable from this room without treatment.
After heavy treatment, if you still need some liveliness in your recordings use binary diffusers over your heavy absorption treatment.

What are binary diffusers? i only heard of QRD 1 and 2 dimensional diffusers. what makes the binary ones suitable for my situation?
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boggy

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What are binary diffusers? i only heard of QRD 1 and 2 dimensional diffusers. what makes the binary ones suitable for my situation?






1D binary diffusers are usually formed with slats mounted over absorptive surface. They may be useful to bring some liveliness in room that become too dead to someone's taste, because (necessary) low frequency absorption. I use MLS (a pseudorandom sequence) for their positioning, as you can see on attached pictures:


Ceiling:





Walls and ceiling:




There are a different and more complicated construction described in our white paper about MyRoom acoustic design where air-transparent diffusers, based on Manfred Schroeder design, are fundamental part, this is a better solution but also more expensive.

And yes, available commercial 2D binary diffusers are BAD panels from RPG inc.

I repeat, they are needed IF you like more liveliness in your recordings after you make your room sounding "dead" because low frequency treatment.
But if you find your recordings acceptable, even in (possibly) too "dead" room, you don't need any diffusers.
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woodnote

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1D binary diffusers are usually formed with slats mounted over absorptive surface. They may be useful to bring some liveliness in room that become too dead to someone's taste, because (necessary) low frequency absorption. I use MLS (a pseudorandom sequence) for their positioning, as you can see on attached pictures:

There are a different and more complicated construction described in our white paper about MyRoom acoustic design where air-transparent diffusers, based on Manfred Schroeder design, are fundamental, this is a better solution but also more expensive.

And yes, available commercial 2D binary diffusers are BAD panels from RPG inc.

I repeat, they are needed IF you like more liveliness in your recordings after you make your room sounding "dead" because low frequency treatment.
But if you find your recordings are acceptable even in (possibly) too "dead" room, you don't need any diffusers.

Cheers

Boggy

Ok. but does these diffusers need to be tuned (designed) for the problematic frequencies in the room, or is there a standard? if yes, how do i do that? what part of the diffuser is dependent on the problematic frequency (fin width, well width, well depth)?

also, whats the advantage of these diffusers over QRD diffusers, are they better for small rooms (no minimum sitting distance)?
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boggy

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Ok. but does these diffusers need to be tuned (designed) for the problematic frequencies in the room, or is there a standard?
No needs for precise tuning, however, they can't target your problematic frequencies in this room, they are only needed to bring back some liveliness in your room and not affect your low frequency absorption.
I use slats from 1"-2", and gap between slats is from 1/8" to 1/4". Slat thickness is from 1/8"-1/2". Slats are (always) wooden.
if yes, how do i do that? what part of the diffuser is dependent on the problematic frequency (fin width, well width, well depth)?
Slat width define maximum affected frequency for diffusion. Effect of diffusion is pretty weak and you don't really need to take care about any calculations.
Use some MLS pseudorandom sequence, if you don't have one, I can post it here.
also, whats the advantage of these diffusers over QRD diffusers, are they better for small rooms (no minimum sitting distance)?
Advantage is cost (they are cheaper), and construction (easier to build).
They are usually constructed with thin slats (they don't go too low with difusion), then there isn't a real problem with minimum sitting distance.
Binary diffusers can make a pleasant listening experience in the room, but they aren't a diffusers with "spectacular" diffusing characteristics.
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woodnote

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No needs for precise tuning, however, they can't target your problematic frequencies in this room, they are only needed to bring back some liveliness in your room and not affect your low frequency absorption.
I use slats from 1"-2", and gap between slats is from 1/8" to 1/4". Slat thickness is from 1/8"-1/2". Slats are (always) wooden.Slat width define maximum affected frequency for diffusion. Effect of diffusion is pretty weak and you don't really need to take care about any calculations.
Use some MLS pseudorandom sequence, if you don't have one, I can post it here.Advantage is cost (they are cheaper), and construction (easier to build).
They are usually constructed with thin slats (they don't go too low with difusion), then there isn't a real problem with minimum sitting distance.
Binary diffusers can make a pleasant listening experience in the room, but they aren't a diffusers with "spectacular" diffusing characteristics.

Oh so there are no "wells" i just put the wood stripes on top the absorption?
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woodnote

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Oh so there are no "wells", i just put the wood stripes on top the absorption?
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boggy

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Oh so there are no "wells" i just put the wood stripes on top the absorption?


Yes :)
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woodnote

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boggy

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Thanks!


NP,
part of MLS sequence we use:

Code: [Select]
position:126 ***** 1
position:125 ***** 0
position:124 ***** 0
position:123 ***** 0
position:122 ***** 0
position:121 ***** 0
position:120 ***** 0
position:119 ***** 1
position:118 ***** 0
position:117 ***** 0
position:116 ***** 0
position:115 ***** 0
position:114 ***** 0
position:113 ***** 1
position:112 ***** 1
position:111 ***** 0
position:110 ***** 0
position:109 ***** 0
position:108 ***** 0
position:107 ***** 1
position:106 ***** 0
position:105 ***** 1
position:104 ***** 0
position:103 ***** 0
position:102 ***** 0
position:101 ***** 1
position:100 ***** 1
position:099 ***** 1
position:098 ***** 1
position:097 ***** 0
position:096 ***** 0
position:095 ***** 1
position:094 ***** 0
position:093 ***** 0
position:092 ***** 0
position:091 ***** 1
position:090 ***** 0
position:089 ***** 1
position:088 ***** 1
position:087 ***** 0
position:086 ***** 0
position:085 ***** 1
position:084 ***** 1
position:083 ***** 1
position:082 ***** 0
position:081 ***** 1
position:080 ***** 0
position:079 ***** 1
position:078 ***** 0
position:077 ***** 0
position:076 ***** 1
position:075 ***** 1
position:074 ***** 1
position:073 ***** 1
position:072 ***** 1
position:071 ***** 0
position:070 ***** 1
position:069 ***** 0
position:068 ***** 0
position:067 ***** 0
position:066 ***** 0
position:065 ***** 1
position:064 ***** 1
position:063 ***** 1
position:062 ***** 0
position:061 ***** 0
position:060 ***** 0
position:059 ***** 1
position:058 ***** 0
position:057 ***** 0
position:056 ***** 1
position:055 ***** 0
position:054 ***** 0
position:053 ***** 1
position:052 ***** 1
position:051 ***** 0
position:050 ***** 1
position:049 ***** 1
position:048 ***** 0
position:047 ***** 1
position:046 ***** 0
position:045 ***** 1
position:044 ***** 1
position:043 ***** 0
position:042 ***** 1
position:041 ***** 1
position:040 ***** 1
position:039 ***** 1
position:038 ***** 0
position:037 ***** 1
position:036 ***** 1
position:035 ***** 0
position:034 ***** 0
position:033 ***** 0
position:032 ***** 1
position:031 ***** 1
position:030 ***** 0
position:029 ***** 1
position:028 ***** 0
position:027 ***** 0
position:026 ***** 1
position:025 ***** 0
position:024 ***** 1
position:023 ***** 1
position:022 ***** 1
position:021 ***** 0
position:020 ***** 1
position:019 ***** 1
position:018 ***** 1
position:017 ***** 0
position:016 ***** 0
position:015 ***** 1
position:014 ***** 1
position:013 ***** 0
position:012 ***** 0
position:011 ***** 1
position:010 ***** 0
position:009 ***** 1
position:008 ***** 0
position:007 ***** 1
position:006 ***** 0
position:005 ***** 1
position:004 ***** 1
position:003 ***** 1
position:002 ***** 1
position:001 ***** 1
position:000 ***** 1
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woodnote

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NP,
part of MLS sequence we use:

Code: [Select]
position:126 ***** 1
position:125 ***** 0
position:124 ***** 0
position:123 ***** 0
position:122 ***** 0
position:121 ***** 0
position:120 ***** 0
position:119 ***** 1
position:118 ***** 0
position:117 ***** 0
position:116 ***** 0
position:115 ***** 0
position:114 ***** 0
position:113 ***** 1
position:112 ***** 1
position:111 ***** 0
position:110 ***** 0
position:109 ***** 0
position:108 ***** 0
position:107 ***** 1
position:106 ***** 0
position:105 ***** 1
position:104 ***** 0
position:103 ***** 0
position:102 ***** 0
position:101 ***** 1
position:100 ***** 1
position:099 ***** 1
position:098 ***** 1
position:097 ***** 0
position:096 ***** 0
position:095 ***** 1
position:094 ***** 0
position:093 ***** 0
position:092 ***** 0
position:091 ***** 1
position:090 ***** 0
position:089 ***** 1
position:088 ***** 1
position:087 ***** 0
position:086 ***** 0
position:085 ***** 1
position:084 ***** 1
position:083 ***** 1
position:082 ***** 0
position:081 ***** 1
position:080 ***** 0
position:079 ***** 1
position:078 ***** 0
position:077 ***** 0
position:076 ***** 1
position:075 ***** 1
position:074 ***** 1
position:073 ***** 1
position:072 ***** 1
position:071 ***** 0
position:070 ***** 1
position:069 ***** 0
position:068 ***** 0
position:067 ***** 0
position:066 ***** 0
position:065 ***** 1
position:064 ***** 1
position:063 ***** 1
position:062 ***** 0
position:061 ***** 0
position:060 ***** 0
position:059 ***** 1
position:058 ***** 0
position:057 ***** 0
position:056 ***** 1
position:055 ***** 0
position:054 ***** 0
position:053 ***** 1
position:052 ***** 1
position:051 ***** 0
position:050 ***** 1
position:049 ***** 1
position:048 ***** 0
position:047 ***** 1
position:046 ***** 0
position:045 ***** 1
position:044 ***** 1
position:043 ***** 0
position:042 ***** 1
position:041 ***** 1
position:040 ***** 1
position:039 ***** 1
position:038 ***** 0
position:037 ***** 1
position:036 ***** 1
position:035 ***** 0
position:034 ***** 0
position:033 ***** 0
position:032 ***** 1
position:031 ***** 1
position:030 ***** 0
position:029 ***** 1
position:028 ***** 0
position:027 ***** 0
position:026 ***** 1
position:025 ***** 0
position:024 ***** 1
position:023 ***** 1
position:022 ***** 1
position:021 ***** 0
position:020 ***** 1
position:019 ***** 1
position:018 ***** 1
position:017 ***** 0
position:016 ***** 0
position:015 ***** 1
position:014 ***** 1
position:013 ***** 0
position:012 ***** 0
position:011 ***** 1
position:010 ***** 0
position:009 ***** 1
position:008 ***** 0
position:007 ***** 1
position:006 ***** 0
position:005 ***** 1
position:004 ***** 1
position:003 ***** 1
position:002 ***** 1
position:001 ***** 1
position:000 ***** 1

There are some stuff i don't understand, can you please explain these to me?

- first of all, i don't know how to read/use this sequence. i read the wiki page but it didn't make it any clearer. does these numbers help me determine the size of the gap between the wood slats? or the wood slats width?

- you said you use slats from 1"-2", did you mean wood slats width?

- you said that the gap between slats is from 1/8" to 1/4", but in the pictures i see slats with almost no gap between them, looks even like their touching each other.

- you said that the slat thickness is from 1/8"-1/2". but in the pictures the thickness seems fixed and equal in all slats.
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boggy

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There are some stuff i don't understand, can you please explain these to me?
Yes

- first of all, i don't know how to read/use this sequence. i read the wiki page but it didn't make it any clearer. does these numbers help me determine the size of the gap between the wood slats? or the wood slats width?
For example, "0" mean non-existance of slat (strip), "1" mean existance of slat. You may start from first position (000) and build your diffuser following sequence from 000 to 127. When you finish (and you may finish at any position), you may continue sequence at second absorber.

- you said you use slats from 1"-2", did you mean wood slats width?
yes

- you said that the gap between slats is from 1/8" to 1/4", but in the pictures i see slats with almost no gap between them, looks even like their touching each other.
It is possible to build successfull binary diffuser without gaps, but gaps enables more air circulation, and slightly more expressed slat absorber characteristic.

- you said that the slat thickness is from 1/8"-1/2". but in the pictures the thickness seems fixed and equal in all slats.
Yes and yes. I choose slats thickness from 1/8"-1/2" (something what I can find on the market in some area), and I don't change chosen thickness in one particular binary diffuser... binary diffusers don't have different thickness of slats. To be clear, diffusers of this construction may have different thickness of slats, but they can't be named "binary" anymore.
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woodnote

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Yes
For example, "0" mean non-existance of slat (strip), "1" mean existance of slat. You may start from first position (000) and build your diffuser following sequence from 000 to 127. When you finish (and you may finish at any position), you may continue sequence at second absorber.
yes
It is possible to build successfull binary diffuser without gaps, but gaps enables more air circulation, and slightly more expressed slat absorber characteristic.
Yes and yes. I choose slats thickness from 1/8"-1/2" (what i can find on the market in some area), and I don't change chosen thickness in one particular binary diffuser... binary diffusers don't have different thickness of slats. To be clear, diffusers of this construction may have different thickness of slats, but they can't be named "binary" anymore.

Thanks, its all clear now. so i decide on a slat width and that will be a single unit. if i multiply it by 127, that will be the width of the whole diffuser.

how would you suggest mounting the slats on the absorption material? glue? or just make the whole diffuser frame tight enough to hold it all together?

i want to ask for your opinion on something i just bumped into: "The helmholtz resonator", i assume you already know what it is. its similar to what you're suggesting in the design, and in the fact that it both absorbs and diffuses. the absorption material not as visible as in yours and the wood slats take much more surface area. every wood slat is in another width so its tuned to different frequencies. so you can have a variety of slat widths in the same frame so it can be tuned to a whole range of frequencies.

i wanted to know what do you think of this helmholtz resonator comparing to what you're suggesting for my situation (small room, dyi..).

a picture of the helmholtz resonator:


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boggy

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Thanks, its all clear now. so i decide on a slat width and that will be a single unit. if i multiply it by 127, that will be the width of the whole diffuser.
127 members of sequence is only part of sequence, number of it is inifinity. I hope that 127 can be enough for most applications, then you don't need to use it all. Find wooden strips that you like, and start to mount it... it's not needed to mount all 127, you can cut sequence where you need.

how would you suggest mounting the slats on the absorption material? glue? or just make the whole diffuser frame tight enough to hold it all together?
I always build wooden frame in front of absorber, then i cover absorber and frame with  (air transparent) fabric, then i fix wooden strips to wooden frame under fabric. You can use nails, screws...

i want to ask for your opinion on something i just bumped into: "The helmholtz resonator", i assume you already know what it is. its similar to what you're suggesting in the design, and in the fact that it both absorbs and diffuses. the absorption material not as visible as in yours and the wood slats takes much more surface area. every wood slat is in another width so its tuned to different frequencies. so you can have a variety of slot width in the same frame so it can be tuned to a whole range of frequencies.
Yes... I understand

i wanted to know what fo you think of this helmholtz resonator comparing to what you're suggesting for my situation (small room, dyi..).

Honestly, I don't believe this construction is much applicable and/or effective in small rooms, then I never used it.
Binary diffusers can have a large air-transparent area, more than 50% with gap applied, then I'm sure that wideband, low frequency absorber isn't much degraded.
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woodnote

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I always build wooden frame in front of absorber, then i cover absorber and frame with  (air transparent) fabric, then i fix wooden strips to wooden frame under fabric. You can use nails, screws...

So does it matter if the wooden stripes are touching the fabric (that wraps the fiberglass) or if there's a little gap (2-4mm) between the stripes and the fabric?
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boggy

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So does it matter if the wooden stripes are touching the fabric (that wraps the fiberglass) or if there's a little gap (2-4mm) between the stripes and the fabric?
You are right, small gap between fabric and slats is better.
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woodnote

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You are right, small gap between fabric and slats is better.

Thank you, you've been very helpful and provided an answer for every little question i had.
i appreciate it very much!
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #20 on: August 01, 2011, 08:43:59 am »

You are right, small gap between fabric and slats is better.
^i only quoted so you'll get a notification^

A question:

When i'm making those absorbers with the wooden stripes on top, should i make an air cavity as part of the panel (wooden closed space behind the panel)? or should i just make it as a regular absorber with a gap from the wall?
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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #21 on: August 01, 2011, 10:51:33 am »

^i only quoted so you'll get a notification^

A question:

When i'm making those absorbers with the wooden stripes on top, should i make an air cavity as part of the panel (wooden closed space behind the panel)? or should i just make it as a regular absorber with a gap from the wall?
Do this in a easier way to you, there may be differences, but I believe that they are negligible.
Small gap between strips and fabric is needed to avoid noise that wooden strips may produce when touch fabric, because of vibrations (free fabric streched on the frame may vibrate too!)... it's not a problem if you have one small wooden strip in studio that vibrate and touch something near... but if you have hundreds... that may be a problem
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #22 on: August 01, 2011, 10:57:30 am »

Do this in a easier way to you, there may be differences, but I believe that they are negligible.
Small gap between strips and fabric is needed to avoid noise that wooden strips may produce when touch fabric, because of vibrations (free fabric streched on the frame may vibrate too!)... it's not a problem if you have one small wooden strip in studio that vibrate and touch something near... but if you have hundreds... that may be a problem

oh sorry you didn't understand, i wasn't asking about this, i was just quoting your comment so you get a notification and see my reply.

i wanted to know if i need to do a sealed air cavity behind the while panel, or just do it like a regular absorber panel with a gap from the wall.
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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #23 on: August 01, 2011, 11:07:45 am »

oh sorry you didn't understand, i wasn't asking about this, i was just quoting your comment so you get a notification and see my reply.

i wanted to know if i need to do a sealed air cavity behind the while panel, or just do it like a regular absorber panel with a gap from the wall.
I see no need for any sealing.
Mount your absorbing panel as you planned, with or without gap from wall.
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #24 on: August 01, 2011, 11:10:44 am »

I see no need for any sealing.
Mount your absorbing panel as you planned, with or without gap from wall.

Ok thanks!
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #25 on: August 02, 2011, 10:51:33 am »

127 members of sequence is only part of sequence, number of it is inifinity. I hope that 127 can be enough for most applications, then you don't need to use it all. Find wooden strips that you like, and start to mount it... it's not needed to mount all 127, you can cut sequence where you need.

A question about this. i'm making two panels, so on the second panel should i start the sequence from the beginning or can i also continue from the middle of the sequence?

Another thing, i'm thinking of doing a third wide panel (120x60cm instead of 60x120cm - WxH). so should i do the slats vertical (more slats, but short ones) or horizontal (less slats, but longer ones)?
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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #26 on: August 02, 2011, 11:05:50 am »

A question about this. i'm making two panels, so on the second panel should i start the sequence from the beginning or can i also continue from the middle of the sequence?
Continue from the point where you ended with previous.
Start from your acoustic listening axis, and go to left and right symmetrically.
You may use same sequence symmetrical to listening axis, but try not to use same sequence in only one side, if you need more than 127 positions, please ask, we will try to make longer sequence.

Another thing, i'm thinking of doing a third wide panel (120x60cm instead of 60x120cm - WxH). so should i do the slats vertical (more slats, but short ones) or horizontal (less slats, but longer ones)?
If you like full acoustical functionality use vertical orientation for front, back, left and right wall absorbers. If you like aesthetic go horizontal for all of it.
For ceiling use horizontal orientation (when you sit at listening position, look at speakers, then look up at ceiling)


EDIT: If you not sure, draw simplified situation in Sketchup, and attach picture here, i will check it.
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #27 on: August 02, 2011, 11:16:11 am »

EDIT: If you not sure, draw simplified situation in Sketchup, and attach picture here, i will check it.

yeh that's exactly what i'm doing. i understood what you said about my second question but not the first. wait i'll make it clearer with the sketch.
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #28 on: August 02, 2011, 11:38:43 am »

EDIT: If you not sure, draw simplified situation in Sketchup, and attach picture here, i will check it.

Here is how i thought it should be.

Lets say the sequence is:
Code: [Select]
position 000: 1
position 001: 1
position 002: 0
position 003: 1
position 004: 0
position 005: 0
position 006: 1
position 007: 0

Here is a picture and the skatchup file.
I did the slats very wide so its easier for us to see.

Download MLS.skp

EDIT: if you want to see the whole room plan, i did an accurate sketch (the slats are in a random order in this room sketch). don't mind the mixing spot, just the recording spot: Download myroom.skp



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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #29 on: August 02, 2011, 12:53:19 pm »

Here it is.
You start from your right (for example) absorber and count to right. Also you start your left side absorber and count to left, same as right but mirrored.
If you have absorbers behind your loudspeakers, then do same, but start from this absorbers.
If you build soffit, it's same, you always start from first absorber at your right or left side, and count to right or left respectively.
Don't repeat sequence on one whole side, when you finish sequence on one absorber, then continue sequence on the next.
Your left and your right side in room must be symmetrical, and your binary diffuser slats may be mirrored.

EDIT:
.skp file isnt allowed as attachment here, zip, rar, 7z too.
I used "your" upload service

here are a modified .skp file
http://solidfiles.com/d/e1197/


EDIT2:
If you don't need binary diffusers for control room, but for recording room, it's not needed to follow symmetry, start from where you like, and count around whole room.
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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #30 on: August 02, 2011, 01:06:32 pm »

... may be deleted
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #31 on: August 02, 2011, 01:21:04 pm »

Here it is.
You start from your right (for example) absorber and count to right. Also you start your left side absorber to count to left, same as right but mirrored really.
If you have absorbers behind your loudspeakers, then do same, but start from this absorbers.
Don't repeat sequence on one whole side, when you finish sequence on one absorber, then continue sequence on the next.
Your left and your right side in room must be symmetrical, and your binary diffuser slats may be mirrored.

Oh i understand thanks!

I'm using them for a recording room, in my room (you can see the sketch, i added it to my previous post) i was planning on putting the panels in front of the recording position and a bit angled in order to break the parallel walls a bit. so its not as simple as parallel left and right..
so should i count in the directions like in this picture?

EDIT: or maybe you think that i should use them to my left and right and put regular absorbers in front of me?



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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #32 on: August 02, 2011, 01:26:52 pm »

Oh i understand thanks!

I'm using them for a recording room, in my room (you can see the sketch, i added it to my previous post) i was planning on putting the panels in front of the recording position and a bit angled in order to break the parallel walls a bit. so its not as simple as parallel left and right..
so should i count in the directions like in this picture?

If you don't have listening symmetry for stereo and surround monitoring it's not needed to follow symmetry.
From only recording room, count from left to right ... no matter that panels will be slightly different because binary diffuser, this is desirable.
Also check my edits in previous post...
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woodnote

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #33 on: August 02, 2011, 01:33:26 pm »

If you don't have listening symmetry for stereo and surround monitoring it's not needed to follow symmetry.
From only recording room, count from left to right ... no matter that panels will be slightly different because binary diffuser, this is desirable.
Also check my edits in previous post...

Ok, that makes sense. so i'll just count from left to right on all panels, and when i start the next panel i'll continue from where i stopped in the sequence.

Thanks for everything.
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boggy

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Re: Need an opinion on a small live room acoustics plan (3D sketch included)
« Reply #34 on: August 02, 2011, 01:35:10 pm »

Ok, that makes sense. so i'll just count from left to right on all panels, and when i start the next panel i'll continue from where i stopped in the sequence.
Yes

Thanks for everything.
NP, good luck! :)
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