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Old 14th November 2011, 10:26 PM   #1
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Default Wireless Audio

How do I do the following? (Cost is no object, quality is.)

Business case: In the summer, I would like to listen to my battery powered speakers in my field where there is no power and wires are not possible.

PC --> Digital Wireless Transmitter --> Air (channel) -->
  • Digital Receiver1 --> Digital Audio Amplifier1 --> Speaker1 (Left)
  • Digital Receiver2 --> Digital Audio Amplifier2 --> Speaker2 (Right)
Issues:
  • How do I broadcast lossless digital audio?
  • How do I synch up the two independent speakers given there are no wires going to Left or Right?
Possible Solutions:
  • Use small pc's in each speaker and use WiFi. How do I sync Left and Right?
  • Use bluetooth. Not great quality and limited distance.

Ideas?

Mike
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Old 15th November 2011, 04:53 AM   #2
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Get an iPad2, send all your stored content to the Cloud and plug your battery powered speakers into the iPad....done.
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Old 15th November 2011, 01:05 PM   #3
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Some analog video transmitter/receivers can transmit SPDIF. It can be as easy as just feeding the SPDIF signal into the video input.
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Old 15th November 2011, 04:13 PM   #4
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Quote:
Originally Posted by theAnonymous1 View Post
Some analog video transmitter/receivers can transmit SPDIF. It can be as easy as just feeding the SPDIF signal into the video input.
So use RCA/SPDIF out to RCA/SPIDF in?
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Old 15th November 2011, 04:31 PM   #5
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Why go digital? Cheap FM transmiters/receivers can be had for peanuts and the quality is good enough for open air. Power draw on these receivers is also low enough to give you a pretty good uptime.
If left and right output speakers are far from each other just use two receivers and ignore one channel.
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Old 15th November 2011, 05:56 PM   #6
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I use the CC8520solution fro Texas Intruments at home for something similar. Got this small kit this summer and use it to stream from my laptop over USB to my stereo. In my setup it's a cable replacement only but multiple receivers can be synced automatically for your setup (you will need two kits though).

Super happy with the solution and the quality is good (48kHz and 16 bit).
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Old 15th November 2011, 09:48 PM   #7
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Quote:
Originally Posted by Salamanteiga View Post
Why go digital? Cheap FM transmiters/receivers can be had for peanuts and the quality is good enough for open air. Power draw on these receivers is also low enough to give you a pretty good uptime.
If left and right output speakers are far from each other just use two receivers and ignore one channel.
So, analog over FM? Are you talking about something like a pro audio wireless FM transmitter or cheep audio/video FM transmitters for tv?
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Old 16th November 2011, 01:04 AM   #8
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Quote:
Originally Posted by lillahimmel View Post
I use the CC8520solution fro Texas Intruments at home for something similar. Got this small kit this summer and use it to stream from my laptop over USB to my stereo. In my setup it's a cable replacement only but multiple receivers can be synced automatically for your setup (you will need two kits though).

Super happy with the solution and the quality is good (48kHz and 16 bit).
Are there any other dev boards with higher sampling rates?
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Old 16th November 2011, 01:09 AM   #9
imix500 is offline imix500  United States
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Take a look at this:
TM400
If it's good enough for a measurement mic it's probably good enough for music.
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Old 16th November 2011, 05:36 AM   #10
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Quote:
Originally Posted by imix500 View Post
Take a look at this:
TM400
If it's good enough for a measurement mic it's probably good enough for music.
So just plugin a xlr from the pc to where the mic would be?
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