Ah, sorry for the confusion. I believe that the Linux ALSA driver is now USB Class 2 compliant, which is what I'll verify with the stock xmos board. There are reports of success with xmos as well as the Ayre QB-9 in async mode, so it seems likely to be OK.
I'm planning on getting an TP USB board when available for use under Linux as well and will report on that, but if history is any indication assuming that one will get in on the 'ground floor' of a desirable TP offering can be a poor bet
Hi Russ,
In a previous post you said the usb module will do stereo for the first rev ?
Does it mean that the first rev board will be upgradeable later to do multi channels or is it planed for another board ? That is, will we need new firmware for the usb xmos module or a new module ?
I am following my idea to go bi amplification or tri amplification with two or three boards. Does the usb module will be able to drive two boards (i think since it is possible to put two buffalo boards in parallel for one i2s) and what about three boards ?
Ok, the most important point is how to achieve bi amplification or tri amplification.
Thanks for your attention.
Lwi
In a previous post you said the usb module will do stereo for the first rev ?
Does it mean that the first rev board will be upgradeable later to do multi channels or is it planed for another board ? That is, will we need new firmware for the usb xmos module or a new module ?
I am following my idea to go bi amplification or tri amplification with two or three boards. Does the usb module will be able to drive two boards (i think since it is possible to put two buffalo boards in parallel for one i2s) and what about three boards ?
Ok, the most important point is how to achieve bi amplification or tri amplification.
Thanks for your attention.
Lwi
Hello,
This usb board is great news! I look forward to the outcome.
I would have a question though. Could you please give some details regarding the isolation method? I know there are several discussions regarding isolating usb on various threads here on diyaudio, but no viable solution emerged. Can you share some details?
Thanks and good luck with the development.
This usb board is great news! I look forward to the outcome.
I would have a question though. Could you please give some details regarding the isolation method? I know there are several discussions regarding isolating usb on various threads here on diyaudio, but no viable solution emerged. Can you share some details?
Thanks and good luck with the development.
Bluetooth usb dongle
Hi,
Russ, is it possible to integrate with your USB transport a Bluetooth sound gateway (like in new home cinema amplituners) using 1$ Bluetooth USB dongle available on ebay? - so we'll able tu use Buffalo DAC wireless!
Marek
P.S.With Bluetooth there is total galvanic isolation
Hi,
Russ, is it possible to integrate with your USB transport a Bluetooth sound gateway (like in new home cinema amplituners) using 1$ Bluetooth USB dongle available on ebay? - so we'll able tu use Buffalo DAC wireless!
Marek
P.S.With Bluetooth there is total galvanic isolation
I have seen an adapter that allows you to transport USB over Ethernet, transparent for the end devices (they see it as only an usb cable), so there should be similar solutions for bluetooth or wifi.
What scared me is the lowish data rate for bluetooth. Anybody knows what is the maximum data rate in an standard enviroment? I am not meaning in theory, but in practice.
Regards,
Regi
What scared me is the lowish data rate for bluetooth. Anybody knows what is the maximum data rate in an standard enviroment? I am not meaning in theory, but in practice.
Regards,
Regi
Popular Bluetooth v2.0 +EDR allow 3mbit/s which is sufficient for Red Book, hi-res tracks will require Bluetooth v3.0 (up to 24mbit/s).
Bluetooth - Wikipedia, the free encyclopedia
Bluetooth - Wikipedia, the free encyclopedia
The cool thing is that it will handle multiple protocols over one fiber. Should be in Macs at the beginning of the year. I imagine this would be ideal for digital audio. Just need chipsets. Then again there will probably be Light Peak to Firewire conversion chips etc.
Intel's Light Peak Rumored To Be Implemented On 2011 Mac's |
Intel's Light Peak Rumored To Be Implemented On 2011 Mac's |
Well...
I would not expect to ever get an accurate clock from a computer! This is why asynchronous computer interfaces (USB, FireWire, ethernet) are so important for audio: no reliance on the computer clocks whatsoever.
Light Peak will have a good advantage with isolation, but more speed/bandwidth is no advantage over what is already possible with USB2, Firewire, and ethernet. The question will become whether someone can implement an asynchronous audio interface through Light Peak.
I would not expect to ever get an accurate clock from a computer! This is why asynchronous computer interfaces (USB, FireWire, ethernet) are so important for audio: no reliance on the computer clocks whatsoever.
Light Peak will have a good advantage with isolation, but more speed/bandwidth is no advantage over what is already possible with USB2, Firewire, and ethernet. The question will become whether someone can implement an asynchronous audio interface through Light Peak.
If multiple protocols can be used over Light Peak then I imagine Firewire and USB will be among them along with their async modes . And if Apple is the first to have this I'm sure they're pushing the interface for audio/video production. Isolation is one of the advantages but so is distance. One can have their computer in another room away from the DAC.
A little idea...
You've probably already thought about this but in case you haven't here is my suggestion =)
Expose volume management to outside the chip, so that it could be used with hardware volume attenuator like for example the Joshua Tree.
Example use case of why:
Billy has an mpd setup for his audio, Billy uses his smartphone app as a remote but wants to change volume. Billy changes the volume through the smartphone app instead of picking up another remote to control volume with.
Another advantage would be that generic usb-based volume management gadgets could be used.
// Olle
You've probably already thought about this but in case you haven't here is my suggestion =)
Expose volume management to outside the chip, so that it could be used with hardware volume attenuator like for example the Joshua Tree.
Example use case of why:
Billy has an mpd setup for his audio, Billy uses his smartphone app as a remote but wants to change volume. Billy changes the volume through the smartphone app instead of picking up another remote to control volume with.
Another advantage would be that generic usb-based volume management gadgets could be used.
// Olle
It sounds expensive, at least initially. 10GB is insane BW, there are ISP backbones in this country that dont use this much BW
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