Recommend a stereo with digital input

Hi All,
I recently received an Airport Express for Christmas and now I want to upgrade my stereo with something that has a digital input. Is there something that you can recommend that has exceptional sound and is a good value for under $300 (including speakers)
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...

Similar Messages

Bluetooth adapter with digital input

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.
Since it will require multiple chassis, I think I will just wire Event 1 to each chassis and so shouldn't have to worry about any syncing problems? A colleague has been looking at PXIe-6544 and 6545, but I'm not sure this is the right tool, and hoping there is a less costly alternative.
Hopefully someone can give me a kickstart in the right direction.

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

Monitors with Digital Inputs

What monitors are available that accept the Toslink input directly? Do the keyboard and on-screen volume controls still work with this arrangement?

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!

Synchronize analogue inputs with digital inputs

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

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 ?

Quote
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.
Quote
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.

Measuring PWM duty cycle with Analog Input

Hello folks,
I have a NI 9205 module and was wondering if there was a way to measure the duty cycle of a PWM signal that I am generating with a separate microcontroller? I have found a lot of examples with Digital inputs but not analog.. Is this possible?
Thank you,
Bob

Hi Robert,
I'm not sure what that error is, try searching for it.
If you want to measure a PWM signal you would usually use a counter input. A counter is a dedicated piece of hardware that is used to measure digital signals. Since the NI 9205 is an analogue device and it doesn't have any counters onboard, you will not be able to select counter input.
I would recommend you get the right tools for the job and buy a digital acquisition device with an onboard counter. It will make reading PWM much easier for you. The NI 6008 has a counter onboard and is only £99. It will also offload processing from software to hardware since you don't have to calculate duty cycle.
If you still want to use analogue post back and we can look into why its not working for you. Tips to start you off: Voltage is the correct setting and Look in the manual and make sure you have connected it like you have configured it (differential, RSE, NRSE page 14)
Lewis Gear CLD
Check out my LabVIEW UAV

VI Logger: digital input?

Does the VI Logger software work with digital input, or only analog input?

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

How to connect Digital Optical Audio output iMac with Receiver Input

I have connected iMac with onkyo hts-3300 home theater system receiver through optical audio TosLink Cable.( http://www.amazon.com/Digital-Optical-Audio-TosLink-Cable/dp/B001ZU3G2I/ref=sr12?ie=UTF8&qid=1292865309&sr=8-2 ). Unfortunately there is no sound coming out from the Home theater system. I have verified the Receiver optical input is working fine by connecting with my TV optical audio digital out put and the it's working great. The only difference between TV and iMac is, on my TV, it has optical audio digital output and I can use this cable (http://www.amazon.com/Tripp-Lite-A102-02M-Digital-connectors/dp/B0002WPREU/ref=s r11?s=electronics&ie=UTF8&qid=1297320792&sr=1-1) to make it work. I can also verified my optical audio TosLink Cable working because I can see the red light coming out from the cable. So the only problem could be from iMac. I doubt I need to change the additional setting to configure iMac to use external optical audio setting instead of the buit in audio setting. Hoe can I able to do it? or my iMac(IMAC 21.5"/3.06/2X2GB/500GB/9400M-ITP
MB950ZP/A) doesn't support optical digital audio out put? I have follow this thread http://discussions.apple.com/thread.jspa?messageID=12769423&#12769423 and to my surprise which doesn't work out for me. I doubt that i need to change some setting, but when I got to setting>> sound I cannot change any setting. I was quite depressed aldy. Can someone answer my question as i m a newbie here. Thanks a lot

Thank you very much for your reply.
@Király : May i know how to Open Audio Midi Setup? Is this Audio Midi Setup is in the locatated in the Setting in Mac Snow Leapord OS? or how to locate this "Audio Midi Setup " in Mac enviroment. Is it possible to open this Audio Midi Setup in windows 7 enviroment also? I Just want to get the audio from my iMac in Hts-3300 onkyo home theatre. YOur help is much appreciated
@rkaufmann87 : Thank you very much for your sharing about this http://www.apple.com/airportexpress/ connection. for me what i understand is the digital audio output in airportexpress is the same as the audio out put in iMac in terms of details sepcs. So this airportexpress will only help you connect wirelessly to home theatre system, rather than waired connection. Other than that nothig much difference. So there is no point for me to spend extra bucks to attain the wireless connection. Unless the airportexpress have optical digital input, which i believe not. Correct me if I m worng, thanks

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

I was given an assingment, but have no idea where to begin. The assingment is to create a text file using notepad with all of my digital inputs and some how make those imputs show up on my digital indicators on my control pannel

I was given an assingment, but have no idea where to begin. The assingment is to create a text file using notepad with all of my digital inputs and some how make those imputs show up on my digital indicators on my control pannel.
When it was explained to me it didn't sound to hard of a task, I have no LabVIEW experience and the tutortial sucks.

StevenD: FYI, I did NOT give you the one star rating. I would never do that!
StevenD wrote:
Ow. Someone is grumpy today.
Well, this is an assignment, so it is probably homework.
Why else would anyone give HIM such an assigment, after all he has no LabVIEW experience and the tutorials are too hard for him?
This would make no sense unless all of it was just covered in class!
This is not a free homework service with instant gratification.
OK! Let's do it step by step. I assume you already have a VI with the digital indicators.
"...but have no idea where to begin".
open notepad.
decide on a format, possibly one line per indicator.
type the document.
close notepad.
open LabVIEW.
Open the existing VI with all the indicators.
(are you still following?)
look at the diagram.
Who made the program?
Does the code make sense so far?
Is it a statemachine or just a bunch of crisscrossed wires?
Where do you want to add the file read?
How should the file be read (after pressing a read button, at the start of the program ,etc.)
See how far you get!
Message Edited by altenbach on 06-24-2008 11:23 AM
LabVIEW Champion . Do more with less code and in less time .

Triggering an event with a digital input

Hello all,
I'm writing my first Labview program. I used an architecture I found on the forums here, and it has been very helpful in getting me started. This architecture uses two while loops, one containing an event structure and one containing a case structure. (This is a queued state machine architecture, I believe).
Part way through the programming, we decided we needed a sensor to make sure the part was in the test fixture during the test. If the part is removed during the test, we'd like to safely stop the test. So basically, I need to monitor a digital input (on an NI-USB-6525 module) and enter the "Stop" case if the digital input turns off. I would also like to make sure this digital input is on before entering the "Start" case. I don't care if the input changes state when the test is not running, nor do I care about its state during the "Exit" case.
I'm really not sure how to add this functionality to my "stop" case. I don't even know if it's possible. I've been researching DAQmx events, but I haven't found an example or answer that aligns with my particular problem.
I've attached my code. It's incomplete right now - I still have a large number of steps to add. I wanted to get this issue figured out before I programmed any more steps. A preview of the code showing the basic architecture is shown in the picture below.
Does anyone have any ideas or suggestions for me, or questions if my problem is unclear? Also, if you see anything else in my code that will be problematic, please let me know.
Thanks in advance!
Attachments:
Main_Loop_072412.vi ‏195 KB

I should also add that I looked into event dynamic registration, but it seemed incompatible with my issue. I don't want my top loop to run only when an event triggers it - I want it to run all the time so that it can immediately respond to button presses. Also, most of the triggering I found was based on value change. I care about the actual value, not just that it changed.
I don't want to do anything that will bog the code down too much since it is important that the system respond immediately to inputs, especially to the stop or exit button presses.
I'm sure I am missing something very basic here. I'm used to ladder logic, where everything is simple and straightforward.

Producer consumer with analog and digital inputs and outputs

Hi everyone,
I am working on a control system program for some practical test work. Currently I am working on the data acuisition component of the Labview program. My architecture is produced-consumer loops with a que. My system will have analog inputs, analog outputs, digital inputs and digital outputs. It's not a time critical sytem, but I would like all of the data acquisition to be synchronised. I have attached my program as it is at the moment. I am having trouble getting all of the data into the que since I have two data types. Also, I'm not sure if i've synchronised the four read/write sequences correctly. I would greatly appreciate if somebody could take a look at my program and give me some advice. Thanks in advance.
Solved!
Go to Solution.
Attachments:
control_v2_DAQ loop.vi ‏46 KB

Robert, the specific error that I get is:
Error -200462 occurred at DAQmx Start Task.vi:6
Possible reason(s):
Generation cannot be started because the output buffer is empty.
Write data before starting a buffered generation. The following actions can empty the buffer: changing the size of the buffer, unreserving a task, setting the Regeneration Mode property, changing the Sample Mode, or configuring retriggering.
Task Name: Heater testing lab digital outputs
This error occurs at the 'DAQmx write.vi' function. I just want to sent one sample per second, for each channel. I would like the producer and consumer loops to each run once every second.
I have attached part of my code with just the data acquisition and writing. Any help would be greatly appreciated.
Attachments:
control_v2_ML_simple.vi ‏83 KB

IPod Touch Digital Output to Stereo Digital Input

Is there a way to connect an iPod touch to the digital input of a stereo amplifier? All the iPod connectors I've seen, including those for the universal dock, connect to stereos using analog RCA plugs. I'm trying to find a true digital to digital connector cable - without spending hundreds of dollars for one of the digital docks I've seen advertised.

Is there a way to connect an iPod touch to the digital input of a stereo amplifier?
There is no digital output on any iPod including the iPod Touch. Both outputs (via headphone jack and dock connector) are analogue.

How to address digital input & output, analogue input & output when communicate with mitsubishi fx1n plc

dear all,
i am new to labview, how to code or address digital input & output, analogue input & output when communicate with mitsubishi fx1n plc or crouzet plc.
pls help.
HM

http://search.mywebsearch.com/mywebsearch/redirect.jhtml?searchfor=mitsubishi+fx1n&cb=ZO&p2=%5EZO%5E...
Try the above link. I know it is a screen-full, but is a search result for Matrikon. They have a whole slew of OPC servers/clients you can try out. Personally, I would go with their OPC server for the Mitsubishi, and use Labview Datasockets. That would be the simplest with the lowest learning curve.
Otherwise, if you wish to use Modbus, you would have to get the commands/syntax from Mitsubishi; might be in their user manual, but I wouldn't lay bets on it. With the Matrikon stuff, the syntax is all built in.
Good luck which ever way you decide to go.
Dave

Recommend a stereo with digital input

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