What Speakers with digital input?

Hi all, since with the nForce soundcard we now have decent drivers with proper support of 5.1, what set of speakers should i buy which use SPDIF ?

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Originally posted by djmorgan
And whilst this is not a forum for 'audio' I believe the 'modern' day intergrated systems have as good if not better specs than seperate systems, also with intergrated the componants are matched, by that, I mean you can have problems with an amplifyer from Sony and a receiver from Pioneer - you get the idea.
The 'purists' buy seperate systems because it 'looks' like you have a system.
Bollocks. You buy component Hi-Fi to be able to match each component to your exact tastes and requirements and be able to upgrade one component at a time.
If you want to 'look' like you have a system (whatever that means) it would seem to me that the integrated boxen you propose are the prime choice.
I don't want to diss all-in-one systems, they have their place in the market, but to suggest that they are by definition better than seperate component systems is nonsense. I can match a Pioneer DVD player to a Rotel amplifier and hook up ASW Cantius speakers, cause I know Pioneer is good at optical players, Rotel makes excellent amps and ASW makes top-notch speakers. Try that when buying integrated. On the downside, I'll end up paying significantly more money and having components that differ 10mm in width and use different color leds 'n stuff- it's up to me to decide whether that's worth it.
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I mean you can have problems with an amplifyer from Sony and a receiver from Pioneer - you get the idea.
Elaborate. Last time I checked, all cinch plugs were the same size.

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Well, Google found I think what you were mentioning:
http://www.roland.com/products/en/DM-2100/index.html
Thank you for letting me know about these! Pretty cool looking!

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I believe Tannoy make a set of the Elipse range of speaker with digital inputs as well. I have no idea why you would want to do this though. I suspect the gains in quality would be tiny if anything at all. You'd be better to spend more money on something less techy and get something that really sounds great!

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I'm interested to purchase a bose solo tv speaker together with a bluetooth adapter so that i can play music from my laptop using the bose speakers. Do you have any bluetooth adapters that I can plug into the digital input of the bose speakers instead of the RCA input so that I can enjoy better sound quality?

kelvinlim82 wrote:
If i were still like to look for a blue tooth adapter with digital input, are there any out there?
Rocketfish makes one with digital but there are issues with it's range, Belkin and Harmon Kardon make them, but they're analog only.All of them are in the same $50.00 price range.
But the connectivity doesn't matter, you will not be able to tell the difference in audio fidelity between analog or digital using bluetooth.
Bluetooth simply doesn't have the bandwidth to carry any type of audio that needs a higher bandwidth digital connection. Digital Stereo maxes out at 1.41 Mbps, Bluetooth A2DP which is the best option for audio right now, maxes out at 768kbps.
There's a nice and consice article here that briefly goes over the technical details:
http://soundexpert.org/news/-/blogs/bluetooth-audio-quality-a2dp

Measuring Velocity with Digital Input

I am not very familiar with digital inputs and so am having trouble picturing this system. I will be starting from scratch but will have PXI chassis' available. I will have about 381 events. Event 1 will trigger acquisition, and over the next 10 - 20 ms, I need to capture the next 380 events. I don't need to know how long each event stays high, only the time in relation to the first event. I would like to catch any event that stays high for at least 1 microsecond.
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Hi Deskpilot,
If you're looking at separate lines, then my previous idea would not scale so well (each X Series card only has 4 counters). I like the idea of using an R Series board to do this and would suggest posting over at the Real Time Measurement and Control forum to double-check the feasibility.
If you had to do this with M/X Series boards, then the more efficient solution would be to use the Digital Inputs instead of counters. The R Series should be more elegant but I thought I would type up the suggestion for M/X Series anyway:
We have a few M/X Series Boards that have 32 clocked digital lines (48 digital lines total, but only 32 support HW timing). Depending on the board selection, you could sample the digital lines at 1 MHz (PXI 6224, PXIe 6323) or 10 MHz (PXI 6254, PXIe 6353). Then, in software you could determine which sample the rising edge occurs on and use this to timestamp when the event occurs. The two options would respectively give you 1us or 100 ns resolution.
The X Series (623x) cards have built-in timing and triggering for the digital lines. The M Series cards (622x) need to take in the clock from another source (you can use a Counter Output to create a 1 MHz or 10 MHz clock which can be triggered by your first event).
At 381 lines you'd require 12 boards. Each board requires 2 terminal blocks for access to all of the lines.
Again, I recommend looking into the R Series board for your task, I just wanted to post another solution in case somebody comes along with a similar issue but with a few less lines.
Best Regards,
John Passiak

Recommend a stereo with digital input

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Thanks!

I find that all you need is a "Mini-plug audio input cable" (thanks Duane), and you can just plug your iTunes directly into your current stereo system via your Airport Express. Have you tried that? If so, have you experienced any loss in sound quality? Even though I love sound quality, I don't credit myself as an audiophile...

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Dear fellows
I am using NI-DAQ, PCI-MIO-16E-4 (new name is 6040-E, I guess) with LabView 7.0. I am working on neuro-physiological signal acquisition. I have 16 analogue input channels and one digital input channel. Digital input is acquiring a TTL level signal that is a reference to the onset of a particular event. I want to synchronise both analogue and digital signals.
Any suggestion?
Nabeel

Nabeel,
have a look on following KB:
http://digital.ni.com/public.nsf/websearch/851A80A7AB2885E086256F4D000610E6?OpenDocument
(it's similar with DI)
regards,
ThSa
http://www.newgistics.com

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Hi,
Are you saying that your woofer and speaker work independently? We should be looking for main Audio In Cable if woofer and speakers are connected to each other. Please provide me the make and model of the speaker set so that we can look for more information on this.
I work for HP.
Click on the BLUE KUDOS button on the left to say "Thanks".
Mark answer with 'Accept as Solution', if it solves your problem.

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Hello folks,
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Hi Robert,
I'm not sure what that error is, try searching for it.
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Hi Zack, you can only measure analog channels, but you can use digital lines as triggers for analog lines
http://digital.ni.com/public.nsf/websearch/86256F0E001DA9FD86256F660071FD6F?OpenDocument
Benjamin C
Senior Systems Engineer // CLA // CLED // CTD

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Thank you very much for your reply.
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Help. I have a Google Hangout in 40mins and my sound seems to have vanished. I went to Sys Prefs and it came up with Digital Out....and the Internal Speakers option is no longer there. How do I reboot, or fix this please?

help. I have a Google Hangout in 40mins and my sound seems to have vanished. I went to Sys Prefs and it came up with Digital Out....and the Internal Speakers option is no longer there. How do I reboot, or fix this please?

There are many possible causes for this issue. Take each of the following steps that you haven't already tried. Some may not apply to your model. Back up all data before making any changes.
1. Start with the steps recommended in this support article. Don't skip any of the steps. It's the starting point for further efforts to solve the problem.
2. Make sure you have a fully up-to-date installation of OS X.
3. If you've installed an application called "Memory Clean" or any other third-party software that is supposed to "clean" or "purge" memory automatically, remove it according to the developer's instructions and restart. You should do that even if the software is not causing the problem, because it's useless.
4. Other third-party software that has been reported to interfere with sound output includes "Boom" and "Samsung Kies." If applicable, uninstall according to the developer's instructions (not by dragging something to the Trash.)
5. If an AirPlay device is selected for sound output from iTunes (or from other applications via third-party software such as "Airfoil"), deselect it.
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7. If a red light is visible in the audio-out port when sound should be playing, the internal switch is stuck in the position for digital output. You may be able to free it by inserting and removing a mini-stereo jack of the proper size. If not, the machine needs to be serviced. Inserting any kind of tool in the port may cause damage that won't be covered by the warranty.
If there's no red light, the switch may still be stuck in the headphone position. Try to free it the same way.
8. Disconnect all wired peripherals except keyboard and mouse, if applicable. If more than one display is connected, disconnect all extra ones. Restart and test.
9. If you have a MacBook Air, turn off Bluetooth and restart.
10. Start up in safe mode. Don't log in; just restart as usual when the login screen appears. When you do, make sure the words "Safe Boot" do not appear in the login screen. If they do, the system is still in safe mode and sound won't work.
11. Reset the NVRAM.
12. Reset the SMC.
13. Triple-click anywhere in the line below on this page to select it:
/Library/Preferences/Audio
Right-click or control-click the highlighted line and select
Services ▹ Reveal in Finder (or just Reveal)
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How to acquire serial data on a digital input line with good performance?

Hello,
we have a performance problem with our realtime controller. Our objective is, to read a 24-bit long digital waveform from a digital input line. To do this, we supply a clock signal (236 KHz) to the PFI1 Line of our DAQ Board. On each rising edge of the clock, a new bit is set on the digital input DI0.
Our hardware which transmits the data, is triggered through a digital output from our realtime controller. On each edge on this output, the hardware starts a serial transmission of 24-Bits.
Everything works fine except the bad performance of our realtime controller. We want to acquire the 24-Bits in a 1ms timed loop. To measure performance we wrote a test program. In that, we only triggered the hardware and transfered the data to the realtime controller. The task which is doing this job, has a approx. CPU-Load of 30%, which is, in my humble opinion, very high. The task is not waiting for data or anything else! We have earlier implemented a control which is also using a 1ms timed loop. This control is sampling 2 analog input signals, 2 counters. Futhermore it's sending telegrams with CAN and doing many calculations. The strange thing is, this much huger program has a CPU-Load of 25%. Does anybody know where the problem is?
For the better understandig I attached our test-program to this text.
We're using:
PXI-8175 realtime controler
PXI-6221 Multifunction DAQ
Thanks!
Regards,
Crest!
Attachments:
dig_test.zip ‏51 KB

Hello,
First of all 30% CPU-Load is normal because the DAQmx-driver needs a lot of resources.
In your programm you should place a wait (for example with 1ms) into the while-loop which causes
lower CPU-Load.
If this is not enough you should build your vi like in the following example.
Regards,
Christian
Attachments:
Read Dig Port.vi ‏51 KB

What Speakers with digital input?

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