[caustic386]

Very promising, our engineers are working hard to make it happen

I'm a little confused on this, so in the meantime it's a 10 band until maybe a future firmware update?

 

[C4PPY]

Sorry,
In UAC mode, it does not support computer-driven mic,
In Bluetooth mode, can only use the BTR7 mic

Would that also mean using the CTIA mic via BT?

 

[Jeff Graw]

That doesn't look like an 84% difference. Either there's some weird optical illusion going on or I think someone's math is off lol.
I just did the math and it's a 58.4% difference. Larger a difference than it initially looks. Just by the eye test I would have said 25-30% so I can see why someone would say it's slightly larger.

Your math is wrong.

83.6 * 39.6 * 14.2 = 47009.952
72 * 32 * 11.2 = 25,804.8

100 * (1 - 47009.952 / 25,804.8) = 82.175%

Slight variance from previous 84% figure is because the picture shows 11.2mm for btr 5 depth, while the spec sheet lists 11.1mm.

 

[tudedude]

Your math is wrong.

83.6 * 39.6 * 14.2 = 47009.952
72 * 32 * 11.2 = 25,804.8

100 * (1 - 47009.952 / 25,804.8) = 82.175%

Slight variance from previous 84% figure is because the picture shows 11.2mm for btr 5 depth, while the spec sheet lists 11.1mm.

I used an online difference calculator and this is what it spit out:
Difference of 47009.952 and 25804.8 = |47009.952 - 25804.8|/((47009.952 + 25804.8)/2) = 21205.152/36407.376 = 0.58244109655142 = 58.244109655142%

https://www.calculator.net/percent-...par2=25,804.8&ctype=3&x=28&y=16#pctdifference

 

[EdgeDC]

I used an online difference calculator and this is what it spit out:
Difference of 47009.952 and 25804.8 = |47009.952 - 25804.8|/((47009.952 + 25804.8)/2) = 21205.152/36407.376 = 0.58244109655142 = 58.244109655142%

https://www.calculator.net/percent-calculator.html?c3par1=47009.952&c3par2=25,804.8&ctype=3&x=28&y=16#pctdifference

You're calculating a measurement of the delta vs the original size instead of simply the original size vs. the new size.

As much as I firmly disagree with Jeff Graw's assessment how big of a deal the size change is, I do agree with his math.

In terms of volume, the BTR7 is 84% larger than the BTR5 (when using the 11.1mm BTR5 spec sheet thickness).

The thing is, volume changes are affected by a multiplication of three dimensional changes, so it grows much faster than may seem apparent when holding the two devices. When you look at the dimensional changes individually, it's not as dramatic as 84%, but they collectively add up. From a previous comment of mine in this thread:

Looking at it another way, the BTR7 is:

• 16% longer
• 24% wider
• 28% thicker

...than the BTR5. It's not insignificant, no. Me though? I'll reserve judgement until I see it in person, or at least pics & video alongside a BTR5. It's a matter of relative perspective and personal priorities. The way I see it, the BTR7 is both notably better featured and more powerful than the BTR5, so I don't personally begrudge the size increase that is listed. You apparently do. Fair enough.

In any case, it's all academic - if you don't like the size, don't buy one, right?

Let's take a much simpler example, using a simple cube. If a cube is 10mm x 10mm x 10mm in dimension, then it has 1,000 cubic mm of volume (aka 1 cubic cm). Now, many people subconsciously think that by doubling all 3 dimensions, that's double the size, right? So... a 20mm x 20mm x 20mm cube. But in terms of volume, that is 8,000 cubic mm of volume, or 8 cubic cm... and is now 800% larger (in volume) than the original cube, not 100% larger.

So... yeah. Volume differences will grow very fast with relatively small changes in individual dimensions. That's why "84% larger" sounds scary but in reality, when you look at the individual dimension changes, it's noticeable, but not ridiculous.

 

[tudedude]

You're calculating a measurement of the delta vs the original size instead of simply the original size vs. the new size.

As much as I firmly disagree with Jeff Graw's assessment how big of a deal the size change is, I do agree with his math.

In terms of volume, the BTR7 is 84% larger than the BTR5.

The thing is, volume changes are affected by a multiplication of three dimensional changes, so it grows much faster than may seem apparent when holding the two devices. When you look at the dimensional changes individually, it's not as dramatic as 84%, but they collectively add up. From a previous comment of mine in this thread:

So what numbers would you input into the calculator? I inputted both volumes, original and new size in the calculator. If this requires a long math lesson then never mind and I'll just take your word for it.

 

[EdgeDC]

So what numbers would you input into the calculator? I inputted both volumes, original and new size in the calculator. If this requires a long math lesson then never mind and I'll just take your word for it.

Switch the numbers around in the calculator. You were calculating the decrease % of a BTR5 down from a BTR7. We were talking about the increase % of the BTR7 from a BTR5. Those percentages will not be the same (yeah, math works that way, because it depends where your starting point is).

 

[tudedude]

Switch the numbers around in the calculator. You were calculating the decrease % of a BTR5 down from a BTR7. We were talking about the increased size of the BTR7 from a BTR5. Those percentages will not be the same.

I wasn't calculating decrease/increase. I was calculating the difference percentage. The difference percent is the same both ways.

edit: I find this pretty interesting. So while an increase in volume of 82% may seem like a lot, it's also only a difference of 58% in volume. So i guess it's about how you perceive something. When I pick up two items, what do I immediately calculate in my mind, the difference in size or the increase in size?

 

[EdgeDC]

I wasn't calculating decrease/increase. I was calculating the difference percentage. The difference percent is the same both ways.

edit: I find this pretty interesting. So while an increase in volume of 82% may seem like a lot, it's also only a difference of 58% in volume. So i guess it's about how you perceive something. When I pick up two items, what do I immediately calculate in my mind, the difference in size or the increase in size?

If the percentage difference was the same both ways, then the calculation results would be the same regardless of which way you put them into the calculator.

Percentage increase is not the same as percentage decrease between the same two objects.

A 20 cm line is twice as long (100% longer) as a 10cm line.
A 10cm line is half as long (50% shorter) as a 20cm line.

100% and 50% are not the same percentages. It depends on which way you are calculating, and where your starting point is.

Put another way, using your numbers - the BTR7 is 82% larger than the BTR5. The BTR5 is 45% smaller than the BTR7. Both are true.

EDIT: Correction from 58% to 45% for the BTR5 being smaller than the BTR7.

 

[tudedude]

If the percentage difference was the same both ways, then the calculation results would be the same regardless of which way you put them into the calculator.

Percentage increase is not the same as percentage decrease between the same two objects.

A 20 cm line is twice as long (100% longer) as a 10cm line.
A 10cm line is half as long (50% shorter) as a 20cm line.

100% and 50% are not the same percentages. It depends on which way you are calculating, and where your starting point is.

Put another way, using your numbers - the BTR7 is 82% larger than the BTR5. The BTR5 is 58% smaller than the BTR7. Both are true.

Then you have to take this up with calculator.net because it's giving me the same percentage difference.

https://www.calculator.net/percent-...3par2=25804.8&ctype=3&x=17&y=29#pctdifference

Difference of 47009.952 and 25804.8 are 58.244109655142%
Steps:
Difference of 47009.952 and 25804.8 = |47009.952 - 25804.8|/((47009.952 + 25804.8)/2) = 21205.152/36407.376 = 0.58244109655142 = 58.244109655142%
25804.8 is a 45.107793345545% decrease of 47009.952.


https://www.calculator.net/percent-...ar2=47009.952&ctype=3&x=33&y=22#pctdifference
Difference of 25804.8 and 47009.952 are 58.244109655142%
Steps:
Difference of 25804.8 and 47009.952 = |25804.8 - 47009.952|/((25804.8 + 47009.952)/2) = 21205.152/36407.376 = 0.58244109655142 = 58.244109655142%
47009.952 is a 82.175223214286% increase of 25804.8.
Steps:
Percentage of increase = |25804.8 - 47009.952|/25804.8 = 21205.152/25804.8 = 0.82175223214286 = 82.175223214286%

 

[Andrew_WOT]

BTW, only 97 left now, was 105 when I was ordering.
https://www.aliexpress.com/item/1005004473518477.html

 

[LoryWiv]

Can anyone confirm that the BTR7 does multipoint like BTR5, i.e. - if connected to a Bluetooth music source and call comes in from paired pjhhone in range it will automatically switch to the call?

Related, a great feature of BTR5 is that when in use as a USB DAC to PC audio source, it also will automatically switch to a call via Bluetooth when incoming,. Same for BTR7?

 

[EdgeDC]

Then you have to take this up with calculator.net because it's giving me the same percentage difference.

https://www.calculator.net/percent-...3par2=25804.8&ctype=3&x=17&y=29#pctdifference

Difference of 47009.952 and 25804.8 are 58.244109655142%
Steps:
Difference of 47009.952 and 25804.8 = |47009.952 - 25804.8|/((47009.952 + 25804.8)/2) = 21205.152/36407.376 = 0.58244109655142 = 58.244109655142%
25804.8 is a 45.107793345545% decrease of 47009.952.


https://www.calculator.net/percent-...ar2=47009.952&ctype=3&x=33&y=22#pctdifference
Difference of 25804.8 and 47009.952 are 58.244109655142%
Steps:
Difference of 25804.8 and 47009.952 = |25804.8 - 47009.952|/((25804.8 + 47009.952)/2) = 21205.152/36407.376 = 0.58244109655142 = 58.244109655142%
47009.952 is a 82.175223214286% increase of 25804.8.
Steps:
Percentage of increase = |25804.8 - 47009.952|/25804.8 = 21205.152/25804.8 = 0.82175223214286 = 82.175223214286%

OK, let me try to put it this way.

We're not trying to calculate the "difference" here. We're trying to calculate the percentage increase in volume. That is not the same thing. Your very same calculator links also show exactly that. Right there, on both the page and your own quoted text:

"47009.952 is a 82.175223214286% increase of 25804.8".

Ergo: the volume of the BTR7 has increased 82% from the BTR5.

(BTW I misquoted the wrong number for the opposite - the volume of the BTR5 has decreased 45% from the BTR7. I have edited my previous comment above to correct that.)

 

[EdgeDC]

BTW, only 97 left now, was 105 when I was ordering.
https://www.aliexpress.com/item/1005004473518477.html

Now only 96 left, as I type this. Good to give people the heads up.

Side note - they are only offering the standard version right now, not the Apple Lightning version (I think it's really just an extra cable) for US$10 more. Maybe there's a delay on getting those cables ready?

Incidentally, I show an updated/changed link (which I think the old one redirects to anyway):

https://www.aliexpress.com/item/3256804287203725.html

One benefit of the new link though - the old one does not work unless you are already logged in to AliExpress. The new link above seems to work regardless of whether you are logged in yet or not.

 

[tudedude]

OK, let me try to put it this way.

We're not trying to calculate the "difference" here. We're trying to calculate the percentage increase in volume. That is not the same thing. Your very same calculator links also show exactly that. Right there, on both the page and your own

yeah i know, that's what I've been trying to say.