Sound output info

I am using Mac Labview 8.5.1 and it does not have the "Sound output info Vi".
Does the newest Mac Labview have this VI. I need to determine if a sound
is in progress so I can stop it and start another.

Ben,
johnsold is right, you could use notifiers to determine if the file is still playing (making use of the wait function). See an example here.
Hope this helps!
Misha

Similar Messages

Is there a way to force A Mini to recognize the HDMI as a sound output.

Is there a way to force the Mac mini to recognize the HDMI as a sound output? I have the HDMI going through a matrix switch and the video works fine but the audio is not recognized. My Apple TV has no problem with both audio and video through the same set up to a tv.

Some general checking:
Open System Information found in Applications->Utilities.
On the left side under hardware, click Audio. In the right
pane, Expand items if necessary to reveal the contents and
see if there is an HDMI listing. If so, click on it to get additional
info.
Also, have you connected the Mini directly to the TV? Narrows down
if it is actually the Mini or just how the Mini is working with the
switch.
Another possibility is that there is a power up sequencing issue.
Ran into a situation with my Yamaha receiver, Mini, and Samsung TV
that if things were not powered in the right sequence I could only
get two channel audio and sometimes only internal audio. With my
setup, I needed to power up the TV (waiting for it to come up completely
showing the searching for signal box), power up the Yamaha, then finally
power up the Mini. Also, after all this, if anything was switched, I would
end up having to reboot the Mini to get audio the way it should be.

Tecra S11 mini Dsiplayport - sound output

Hi,
I have read the user manual and I did not see anything about mini Displayport sound output.
Is Tecra S11 supports sound output via mini displayport?
Are there any mini displayport to HDMI cable which supports sound to send video and AUDIO to my LCD TV?
Thank You

Hey thank you for this info. In the past this port was used for Video signal only.
After your info about working sound Ive found info that audio support was added in 2009.
This added feature allows now connecting notebooks to modern HD TVs using mini display ports to HDMI cable. It is really nice that there is full video and audio functionality.
It is really interesting that just several Toshiba notebooks are offered with this port.

10.4.7 sound output source is broken

If I go to System Preferences -> Sound -> Sound Effects -> "Play alerts and sound effects through", the pulldown menu is grayed out.
Sometimes applications sounds completely disappear and do not play through the speakers. This happens to Mail and the Finder. I didn't have any problems like this before updating to 10.4.7.
Is anyone else experiencing this?

I just verified with 10.4.6, and 10.3.9 which I have backups of that you can only have one output source at a time. So that menu in Apple menu -> System Preferences -> Audio -> Sound Effects will always be grayed out, and auto update itself when you plug in something or remove something from the sound output port of the Mac. There is another bug that causes some programs to not give audio out in machines like yours and mine. Applications -> Utilities -> Audio Midi setup defaults itself to 96 Hz on machines with SPDIF out after certain updates including 10.4.7. Setting it for 44.1 Hz on Audio Output will fix the audio out problem on many a program and restarting. Sometimes you need to also zap the PRAM:
http://docs.info.apple.com/article.html?artnum=2238

[SOLVED] External sound output silent since upgrade to GNOME 3.16

Hi.
I just upgraded my machine to GNOME 3.16 (pacman log). Since then, sound output (whether the GNOME Sound applet test, or Clementine, or YouTube from Firefox)...
... works fine when outputting to the laptop speakers.
... is silent when I plug my external speakers to the computer's jack 3.5" out. I have two outputs, am using the same as before the upgrade but tried both nevertheless, and plugging an mp3 player works.
Here is my config:
laptop = Dell XPS 1645
uname -a = Linux x 3.19.3-3-ARCH #1 SMP PREEMPT Wed Apr 8 14:10:00 CEST 2015 x86_64 GNU/Linux
pulseaudio = pulseaudio 6.0-1
Any idea? Debug suggestions? Need more info? Thanks for the help.
EDIT: Problem solved after a second reboot :-/
Last edited by ronjouch (2015-04-10 09:56:41)

LeCrayonVert wrote:Removed both options...still the same thing.
I've tried to reinstall kernel26-lts...and even with this kernel, the same error occurs...It's most likely related to the mkinitcpio creation process.
Did you try the fallback initramfs?

Can´t get optical sound output from my brand new mini

have connected the MM to an optical input on my Yamaha RX-V659, but I can´t get no sound.
Mac-side: After connecting and turning on, "System Prefs -> Sound -> Output" has changed to Digital Output and says that no output controls are available for this output. I have tried playing from iTunes and DVD Player. In DVD player the option for selecting Digital Output had appeared, and I chose that. When I take a look at the end of the cable I plug into the receiver I see a constant red light.
Yamaha-side: I have tried 2 different optical inputs, and gone over my settings several times. The receiver does not seem to detect digital audio coming in. I tried the Signal Info menu on my receiver, and for another source it output:
PCM, 48kHz, 2.0, Analog
On the optical input it says:
---, ---, 2.0, Analog

I have a similar setup to a Kenwood receiver. You are correct that ALL system sounds (frontrow, system alerts, etc.) will play through to your stereo.
Have you tried switching Toslink cables and/or the toslink to miniplug adapter that is plugged into the mini?
I had a bad cable at one point in time, and a bad adapter at another point in the life of this system. You perhaps tried these things already but I only saw mention of trying 2 different inputs (I assume on the receiver) and made no mention of cables/adapters.
Let me know how you make out.
Message was edited by: CaptTB

Delayed digital sound output?

Presumably someone else has seen this already, but I could not find any such info in the FAQ or here.
I recently connected the SPDIF output to the stereo.
The sound output there, while good, is slightly offset from the analog output. When running with both analog and digital output active, the digital works as an "echo".
More annoying, when playing video, this means lips and voice are not in sync.
My guess is the offset is something like 0.1 - 0.2 secs.
Anyone seen(/heard) of this before?
WinXP, BIOS 2.4, APU 1.0 / audiodriver: 5.10.2826.0000

Hook,
All this is using the SPDIF output:
I just checked and the delay is greater (and is probably what you are noticing) when you enable the Dolby Digital encoding. If you output Stereo, that is PCM, it will be much smaller. The DD encoding/decoding process takes time.
Sill, you will notice some delay anyway WRT the analog, as your receiver has to process the PCM signal a little, but not as much as the DD signal.
If your problem is lip-sync, set your DVD player to output directly to SPDIF and not to 6 channel audio. Just think about it:
DD track ->SoftDecode to 6 channel->MCP encode to DD->SPDIF->Receiver decode to 6 channel
VS
DD Track->SPDIF->Receiver decode to 6 channel.
Hope this helps.
M.-

Apple TV status light dead & no video/sound output

After our move I hooked my entertainment center up and the Apple TV is dead. The status light won't illuminate even after plugging in. It will not respond to the remote as the status light does not respond. There is no video or sound output. I did a "restore" in iTunes (it recognized it so I know it "exists") but it is still unresponsive. I am working with known good cables and hardware. The only sign of "life" in the Apple TV is that I can see a red light eminating from the back of the unit around the optic audio port. There are no network lights (if there are any).
Thanks for your help,
Ben

Philly - I think you are confusing the Digital AV Adapter with something else. It is for use only with TV's and other video displays that have HDMI ports - not those that don't. Per Apple in their info on this device: "Watch slideshows and movies on the big screen in up to 720p by connecting your iPad, iPhone 4, or iPod touch (4th generation) to an HDTV or HDMI-compatible display."
http://store.apple.com/us/product/MC953ZM/A
http://www.apple.com/ipad/features/mirroring.html
As I said before, I've not tried this adapter, so I don't know if its ability to mirror the iPad's screen is somehow blocked by the HBO Go app. As Demo indicated, it seems like the app may be blocked this way as well. Personaly, I don't need to this as I have HBO and Cinemax On Demand through my cable supplier on all televisions in my home. I might try it when I visit relatives who have Internet access but not HBO. If so, I'll report back my experience.
In regard to why Apple TV does not support HBO Go, some additional research seems to suggest HBO may not like the level of content security provided by Airplay. Interestingly, while Apple TV can't stream it to a large screen, HBO Go is now available for use on televisions through the new Roku box -- provided one has an HBO subscription through a cable or satellite provider. There is still no way to get HBO other than through an authorized cable or satellite service.

[SOLVED] Sound output works, microphone doesn't, works in Ubuntu

SOLUTION: While I unmuted everything in ALSA, I missed this step from the ALSA wiki: "In order to record from a device, the device's "capture" switch must be set. To do so, run alsamixer, select your microphone and press space."
What sound card I have:
# From /proc/asound/card0/pcm0c/info
name: 92HD93BXX Analog
# From lshw
product: 7 Series/C210 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
configuration: driver=snd_hda_intel latency=0
I've tried:
Setting different models in /etc/modprobe.d/
Blacklisting snd_intel8x0m
Stopping PulseAudio and using ALSA directly
I've unmuted everything using alsamixer.
Sound output always worked regardless of what I tried, the mic never worked.
I'm not sure about the correct model and whether it must be specified in /etc/modprobe.d/. Looking at this list of models there is a STAC92HD83* but no STAC92HD93* (see output above). The laptop is a Dell Latitude E6530.
Interestingly, the mic is working fine in Ubuntu 13.04. Listing the snd-hda-intel parameters on both Ubuntu and Arch, it seems as if Ubuntu does not set a model.
Can anyone point me in the right direction to find the relevant settings that Ubuntu is using? Anything else I should do?
Last edited by Markus00000 (2013-08-30 09:51:38)

1. Reset the phone (no data loss): press botht the home and lock buttons, releasing when the Apple logo appears
2. Restore the iOS using iTunes, also restoring a backup
3. Restore using iTunes as new, without restoring a backup
Use iTunes to restore your iOS device to factory settings

Alsa: reroute sound output to line in?

Hello,
i've been on this for a week now, not getting anywhere.
but now i'm determined to crack the nut that is alsa.
a familiar problem: i want to use alsa's sound output - pcm or master - internally.
i have set up a loopback device now; it works with e.g. recordmydesktop, but the application i'm interested in seems to only chose the first capture channel of the default soundcard :-(
(it's sndpeek).
so, is it possible to duplicate & reroute the default card's pcm or master channel back into the default card's Line channel (Line in)?
of course i'm open to other suggestions.
thanks.
current .asoundrc (creates a 2nd sound card that i cannot access with sndpeek, but works otherwise)
pcm.!default { type asym
playback.pcm "LoopAndReal"
#capture.pcm "looprec"
capture.pcm "hw:0,0"
pcm.looprec { type hw
card "Loopback"
device 1
subdevice 0
pcm.LoopAndReal { type plug
slave.pcm mdev
route_policy "duplicate"
pcm.mdev { type multi
slaves.a.pcm pcm.MixReale
slaves.a.channels 2
slaves.b.pcm pcm.MixLoopback
slaves.b.channels 2
bindings.0.slave a
bindings.0.channel 0
bindings.1.slave a
bindings.1.channel 1
bindings.2.slave b
bindings.2.channel 0
bindings.3.slave b
bindings.3.channel 1
pcm.MixReale { type dmix
ipc_key 1024
slave { pcm "hw:0,0"
rate 48000
#rate 44100
periods 128
period_time 0
period_size 1024 # must be power of 2
buffer_size 8192
pcm.MixLoopback { type dmix
ipc_key 1025
slave { pcm "hw:Loopback,0,0"
rate 48000
#rate 44100
periods 128
period_time 0
period_size 1024 # must be power of 2
buffer_size 8192
- copied over from here.
the soundcard is a basic laptop intel chip.
$ dmesg|grep -i intel
[ 1.037761] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[ 19.315080] snd_hda_intel 0000:00:1b.0: irq 44 for MSI/MSI-X
[ 20.408741] input: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 20.408940] input: HDA Intel Line as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 20.409100] input: HDA Intel Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
thanks for any advice!
Last edited by ondoho (2013-11-07 19:37:46)

so, is it possible to duplicate & reroute the default card's pcm or master channel back into the default card's Line channel (Line in)?
If you're talking about the analog audio path the answer is maybe. But fair warning, you'll be spending many more hours (maybe) getting it to work while wallowing real deep in today's integrated audio hardware and ALSA if you want to use this method.
the soundcard is a basic laptop intel chip.
This is the first thing you need to learn. That chip is generic and found on almost all modern x86 motherboards. Where the audio magic actually happens is the "codec" chip and the vendor/model varies. The HDA Intel chip merely "talks" to the codec chip which sits "behind" the HDA Intel chip on the bus.
So the first step is to figure out which codec chip is installed and then determine if you can "manually" connect the "virtual wires" inside the codec to make a connection from the output (play) to the input (capture).
One way that you might find which codec you have is to enter:
less /proc/asound/cardX/codec#Y
where "X" is your card number and "Y" is the codec number
Just look for "Codec:" near the top. Also, there's gobs of other good info in that file that will be used in a moment.
The codec chip contains what I call "virtual wires" that connect it's internal components (amplifiers, mixers, ADCs, DACs, etc). ALSA gathers info from BIOS and determines which connections to enable, but I've found that most codec chips have many connections that are not enabled. More importantly in this case, I've also found that many chips have a connection from the output (play) to the input (capture), it's just not enabled... and that may (or may not) also be the case for your chip. I've been able to enable the internal connections in my chips to create a hardware loopback so that Line Out is connected to Line In... so what you hear in the speakers is also sent to ALSA's capture interface... and the capture level is independently adjustable.
So how would you inspect and change these "virtual wires"? With a program called hda-analyzer. It will use the data in the /proc/asound directory (and more) to show you how your codec is wired in both text and graphics form, along with allowing you to change it. One way to get it is by running this command:
wget -O run.py http://www.alsa-project.org/hda-analyzer.py
I'll leave it to you to figure out which dependency packages need to be installed, but once you install them, run:
python2 run.py
where it will download yet more code (possibly in the /dev/shm directory) and will barf because you either need to install yet more dependency packages to run hda_analyzer.py, or simply because it tried to automatically run it using python3 (because it's also a python2 program, so run it manually like: "python2 hda_analyzer.py").
Once you get it running, the confusion factor will probably kick into high gear. Take your time and poke around. Get your bearings somewhat by clicking on "Graph" to display the wiring layout and hover your mouse over the square blocks and the wires. As I said in a previous post, if you can download the datasheet for your codec chip, it may help if it includes an internal diagram:
https://bbs.archlinux.org/viewtopic.php?id=147208
https://bbs.archlinux.org/viewtopic.php … 3#p1089243
Any changes you make to the "wiring" are instantaneous (so you can try it while making changes) and will go away on a reboot. Clicking "Exp" will create a python script of your changes that you can run later to make those connections again from the command line.
Good luck, and I'll check back to help if I can find the time... that is if you're up for such a major challenge.
Last edited by pigiron (2013-11-10 04:31:25)

Sound output restricted to front speakers on 5.1 sound system

Since updating to 64bit newest iTunes (12.1.0.71) it only plays out of the front three speakers and subwoofer.
In itunes sound output options I do see "windows audio session" only. tried with several bitrates and 16/24 bit output to no avail.
Any ideas why it shuts down the rear speakers?
System info:
Win 8.1 64bit, asus realtek HD audio driver 6.0.1.7071
Amazon Music and other sound outputs working just fine with full 5.1

In addition to my last post: ac3 output on video is not available either. So this is really annoying ...

NO SOUND OUTPUT MS 6373 Nvida Board FIX

Recently assembled Nvida MS 6373 MB and went nutz trying to get the sound to work and discovered new info listed in Tiawan FTP site Motherboard manual that was not explained in the old manual that simply explains that you need to jumper JAUDIO2 Jumper set which is just to the right of the CNR Slot at the bottom left hand side of the board and jumper 0 0 0 0 Pins 5&6 and 9&10 to get rear audio output.
0 0 0 0 0
Pin 5 9 are just to the left and right of the Jumper that is skipped and jumping them will get analog sound output. Download the English Tiawan MB manual it has new info.

Were you trying to get on board sound or are you using an audio CNR card?? Cuz if you are trying to get on board sound then you don't even use the jumpers that you mentioned, you use JA1 and if you want front and back sound then both sides should be shorted.

No sound output in Messages

I'm running 10.8.2 on a MBP 2.66 ghz Intel Core 2 Duo.
When I go into the Messages preferences, the Sound output option is greyed out, similar to the Camera.
Microphone is working fine but I can't hear anything from the other side.
If I plug in some headphones, Sound output option changes to Headphones but remains greyed out and sound still doesn't work.
I've already tried resetting the PRAM with the Option-P-R trick but that hasn't helped.
Thanks in advance for helping to fix this.

HI,
Sound in Messages needs the Output device set in System Preference > Sound > Output in the first place.
This should then show up in the Messages Menu > Preference > Video Section in the output drop down (If there is only one choice in System Preferences then it will not be a drop down but just the greyed out name of the Output.
PRAM is OPT+CMD+P+R not just Option and the letters.
If you have sound in other apps like iTunes and the volume is actually set high enough then open the Connection Doctor in Messages > Video menu.
If you do this during a Chat then the incoming Video and Audio feeds are represented by two green bars.
Having a green bar fro audio doe snot actually mean anything is being sent from the other end.
But a lack of a green bar does mean they are not sending anything.
Get them to Check:-
They has set the mic and Volume in System Preferences > Sound > Input.
The volume needs to move the blue response bar at least halfway but not bang into the right hand end.
The Same mic or input device needs to be selected in Messages > Preferences> Video Section > Microphone Drop down.
It also needs to be "On" and ticked in Messages > Video menu > "Audio chat Enabled".
(IF they are using iChat then same Menu > "Microphone Enabled")
You can test to a certain point with several computers that Apple tend to keep on line as text accounts (they Auto answer with no human interaction)
Add appleu3test01 or appleu3test02 or appleu3test03 as Buddies to your AIM list.
Normally at least two are on line but as I type this is seems none of them are.
They tend to be playing Apple Adverts and the like.
8:53 PM Monday; January 28, 2013
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously

MBP Retina No Sound Output device found

I use my MBPR with thunderbolt monitor and often use the 'Display Audio' option when plugged into them. 2 days ago, when I unplugged the thunderbolt monitor, there was no longer an 'internal speakers' option in the sound prefs pane.
It does still show the 'Display Audio' option when plugged into the TB display, however that is the only audio option now, other than any available airplay devices in range.
I did SMC reset & PRam reset, multiple times to no avail. I then called apple support and they walked me thru the same things, as well as eventually deleting these 2 plists from the library > prefrences > audio folder:
com.apple.audio.SystemSettings
com.apple.audio.DeviceSettings
This also did not return the audio device to the sound prefs pane.
I had a friend with the same laptop, same specs, send me his version of those plists, as mine were missing sevral keys that his had. None of that worked. Wondering if anyone else has seen their internal audio device disappear on the MBPRs? I read up on HDMI audio threads, but the their problems seemed to be with MB Air & not very relevant to this problem.
Thanks.

Hi-
Does the G4 make the start up chime?
In System Preferences/Sound/Output, is the "Mute" button selected? Is the volume set?
Do you know that the internal speaker worked before you got the G4?
Have you tried headphones or speakers in the sound output jack?
If the output jack isn't shown in the preferences, and you have no chime on start up, you may have hardware problems.
Just for fun, try a PRAM/NVRAM reset:
http://docs.info.apple.com/article.html?artnum=2238
Maybe the sound problem is why the machine only cost you $20...........
G4 AGP(450)Sawtooth Mac OS X (10.4.8) 2ghzPPC,1.62gbSDRAM, ATI9800, DVR-109,(IntHD)120&160,LaCie160,23"Cinema Display

Can not change sound output. Help Please

Well, i've been digging all the forums lately in web. my problem is, i can't change my 'system' sound output to my sound card which is Native Instruments Audio8 Dj.
Let me explain my problem decently. I do the usual procedure, system preferences > sound > n then select the output. but nothing happens. it is always set on internal speakers or headphone or whatever plugged in to the *Built-in Output*. I try switching from audio-midi setup n that doesn't work as well. The system perfectly recognizes the sound card, i can get output from sound card with applications which have their own output settings. But i cant change the system output. I have the latest version of soundflower loaded(this might be causing the problem who knows), i used many soundcards before(or maybe even ex-drivers?) n they used to work until i updated to snow leopard. I also tried trashing the files in macintosh hd > library > preferences > audio >>
and those files *did not regenerate* after restart(like 10 times), so i had to copy them from my imac.(hehe). i tried resetting pram or nvram.(didn't do any good too)And also i tried trashing soundpref.plist which didn't do me any good neither. Now i need that sound card to give me my system output. I don't need drivers of any other ex-sound cards or whatever. My drivers are up to date. And im pretty sure this ain't an hardware fail.
So, any ideas? Thx.

I am having the exact same problem. I have spoken with Apple Care and they are having my case reviewed by "Engineers," apparently. Its very frustrating as I cannot listen to iTunes or any of my video games through my really nice monitor speakers. FYI, I had this problem without installing Sound Flower, since then I have installed it in the hopes that having something different to select it might work but no changes. If I hear any good news from Apple I will be back to let you know. This seems to be a very rare problem as I have only found one other post about this issue.

Sound output info

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