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John Doe[_2_] John Doe[_2_] is offline
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Default USB microphone to powered speaker?

Been using a Marantz Professional MPM-1000U connected to a PC
USB port, then out through the soundcard to JBL LSR305 active
monitors. Sounds great to me.

Question: What is required to connect such a USB microphone
directly to a powered speaker like the JBL LSR305?

Thanks.
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John Doe[_2_] John Doe[_2_] is offline
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Default USB microphone to powered speaker?

John Doe wrote:

Been using a Marantz Professional MPM-1000U connected to a PC
USB port, then out through the soundcard to JBL LSR305 active
monitors. Sounds great to me.

Question: What is required to connect such a USB microphone
directly to a powered speaker like the JBL LSR305?


BEHRINGER STUDIO 50USB

If those handle the Marantz microphone, that is the type of
speaker I would use. I will look further.
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Mike Rivers[_2_] Mike Rivers[_2_] is offline
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Default USB microphone to powered speaker?

On 2/24/2018 12:58 AM, John Doe wrote:
Question: What is required to connect such a USB microphone
directly to a powered speaker like the JBL LSR305?


In general, the answer is quite simple - you need a computer or
something equally smart, to serve as a "host" the microphone's USB
output. The computer processes the digital data from the microphone,
converts it to an analog signal, and send that out through the headphone
or line output of the computer. You can replace the computer with
certain smart phones, but not all phones have the connectivity or the
operating system extensions necessary to support USB audio.

There are a few USB microphones that have both a digital and an analog
output so you can use it either way, though unless the speaker has a
dedicated microphone input (some powered PA speakers do) you'd need a
microphone preamplifier between the microphone and speaker.

For the microphone that you presently have, you're stuck with connecting
it to a suitable USB host, which is something that's not built into any
powered speaker that I know of.



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Scott Dorsey Scott Dorsey is offline
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Default USB microphone to powered speaker?

John Doe wrote:
Been using a Marantz Professional MPM-1000U connected to a PC
USB port, then out through the soundcard to JBL LSR305 active
monitors. Sounds great to me.


Latency, though. Not a lot, but enough to make singing a problem.

Question: What is required to connect such a USB microphone
directly to a powered speaker like the JBL LSR305?


A computer. This is the problem with USB microphones, and it's why
I recommend people buy a conventional microphone and a computer interface
instead.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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johnw johnw is offline
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Default USB microphone to powered speaker?

On Sat, 24 Feb 2018 07:24:33 -0500, Mike Rivers wrote:

For the microphone that you presently have, you're stuck with connecting
it to a suitable USB host, which is something that's not built into any
powered speaker that I know of.


There are a few on sale on this side of the Atlantic which have USB
inputs, but they are not microphone capable, and will only read files off
USB memory sticks.



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Mike Rivers[_2_] Mike Rivers[_2_] is offline
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Default USB microphone to powered speaker?

On 2/25/2018 7:32 PM, John Doe wrote:
Shouldn't be much (if any) more of a problem than a USB card
input. Both must use the same digital signal.

BEHRINGER STUDIO 50USB --- appears to be an example


That Behringer USB speaker appears to be able to play digital audio
coming from a computer. The computer is the host for the speaker.
There's nothing to suggest that it can "play" audio from a digital
microphone that's designed to be connected to a computer. The microphone
needs a computer as its host. The speaker isn't smart enough to host it.

Prove me wrong.



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geoff geoff is offline
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Default USB microphone to powered speaker?

On 26/02/2018 3:30 PM, Mike Rivers wrote:
On 2/25/2018 7:32 PM, John Doe wrote:
Shouldn't be much (if any) more of a problem than a USB card
input. Both must use the same digital signal.

BEHRINGER STUDIO 50USB --- appears to be an example


That Behringer USB speaker appears to be able to play digital audio
coming from a computer. The computer is the host for the speaker.
There's nothing to suggest that it can "play" audio from a digital
microphone that's designed to be connected to a computer. The microphone
needs a computer as its host. The speaker isn't smart enough to host it.

Prove me wrong.





Needs a USB audio 'loopback' app ! Could be achieved several other ways
using software that is not designed primarily for that purpose. Any DAW
should do it. Maybe even the Windows mixer applet.

geoff
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Mike Rivers[_2_] Mike Rivers[_2_] is offline
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Default USB microphone to powered speaker?

On 2/26/2018 2:44 AM, geoff wrote:
Needs a USB audio 'loopback' app !Â* Could be achieved several other ways
using software that is not designed primarily for that purpose. Any DAW
should do it. Maybe even the Windows mixer applet.


That's pretty much what I've been saying. It would be possible to build
a USB audio host into the speaker, but they didn't.

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Scott Dorsey Scott Dorsey is offline
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Default USB microphone to powered speaker?

John Doe wrote:
Shouldn't be much (if any) more of a problem than a USB card
input. Both must use the same digital signal.


Nope, not even a little bit. The USB buss suppports all kinds of different
devices. The USB card is viewed as a mass storage device... the host machine
opens it up like a disk drive. The microphone is viewed as a streaming
realtime device.

Now, the hardware might be there to support such a device... but the internal
firmware isn't.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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