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View Full Version : Does synchronized playing use more network bandwidth thanplaying to a single player?



Arran & Skye
2004-04-28, 13:23
I have just brought my first two Squeezeboxs. Excellent products!

My question is whether playing sychronised music on both the boxes uses
extra bandwidth on the network?

I note that the Slim FAQ states that ;
--QUOTE
While streaming music, Squeezebox will use some network bandwidth. The
amount of bandwidth depends on the bitrate of the audio file. MP3 files
use up to 320k bits per second, AIFF, WAV, AAC and other formats may
use up to 1.5M bits per second. A solid 802.11b network can generally
support around 5M bits per second of data, even though it's rated for
11M bits per second. This means that you can support more than one
Squeezebox on an 802.11 network, but the number depends on the audio
data rate.
--UNQUOTE

So if playing a MP3 on a single squeezebox used 320k per second, does
playing the same MP3 on two sychronised squeezeboxs use 640k?

More importantly, if I add another couple of squeezebox so that the
whole house is set-up for sound, will the throughput be 4 times 320k,
so 1280k per second?

I am worried that I might exceed the capacity of my wireless network.

Any ideas?

Thanks
Simon

dean
2004-04-28, 15:59
Hi Simon,

On Apr 28, 2004, at 1:23 PM, Arran & Skye wrote:
> I have just brought my first two Squeezeboxs. Excellent products!
Thanks!

> My question is whether playing sychronised music on both the boxes
> uses extra bandwidth on the network?
Yes. The amount of bandwidth doubles when you add another synced
squeezebox.

> I am worried that I might exceed the capacity of my wireless network.
That could happen, depending on the speed of your network and the other
traffic on it.

-dean

Arran & Skye
2004-04-28, 16:35
Thanks Dean for your very quick reply.

I guess the final question then would be whether a normal wireless
network would be likely to be able to cope with 3 or maybe 4 players
all synchronised, playing MP3's at very high quality levels say 250kbps
to 320kbps

I am presuming that that would use around 1280k on the network,
compared to the likely network capacity suggested in the FAQ of 5M "A
solid 802.11b network can generally support around 5M bits per second".
So 1.3M compared to capacity of 5M. Sounds ok in theory, but in
practice?

Thanks & Regards
Simon

On 28 Apr 2004, at 23:59, dean blackketter wrote:

> Hi Simon,
>
> On Apr 28, 2004, at 1:23 PM, Arran & Skye wrote:
>> I have just brought my first two Squeezeboxs. Excellent products!
> Thanks!
>
>> My question is whether playing sychronised music on both the boxes
>> uses extra bandwidth on the network?
> Yes. The amount of bandwidth doubles when you add another synced
> squeezebox.
>
>> I am worried that I might exceed the capacity of my wireless network.
> That could happen, depending on the speed of your network and the
> other traffic on it.
>
> -dean
>
>

dean
2004-04-28, 16:59
On Apr 28, 2004, at 4:35 PM, Arran & Skye wrote:

> Thanks Dean for your very quick reply.
>
> I guess the final question then would be whether a normal wireless
> network would be likely to be able to cope with 3 or maybe 4 players
> all synchronised, playing MP3's at very high quality levels say
> 250kbps to 320kbps
>
> I am presuming that that would use around 1280k on the network,
> compared to the likely network capacity suggested in the FAQ of 5M "A
> solid 802.11b network can generally support around 5M bits per
> second".
> So 1.3M compared to capacity of 5M. Sounds ok in theory, but in
> practice?
It really depends on the quality of your network signal and devices.
I'd hate to predict, it's the kind of thing you need to try.

-dean






> On 28 Apr 2004, at 23:59, dean blackketter wrote:
>
>> Hi Simon,
>>
>> On Apr 28, 2004, at 1:23 PM, Arran & Skye wrote:
>>> I have just brought my first two Squeezeboxs. Excellent products!
>> Thanks!
>>
>>> My question is whether playing sychronised music on both the boxes
>>> uses extra bandwidth on the network?
>> Yes. The amount of bandwidth doubles when you add another synced
>> squeezebox.
>>
>>> I am worried that I might exceed the capacity of my wireless network.
>> That could happen, depending on the speed of your network and the
>> other traffic on it.
>>
>> -dean
>>
>>