Multiple Audio Outputs

First off before I get to the point...
I would have submitted this through the iTunes feature request form, but it's been removed. "iTunes feedback" is now simply "what would you like to buy".
Anyway... I've got two audio outputs on my system - built in audio which goes to the internal speakers, and USB audio which goes to some better external speakers. I'd like to use the internal ones for regular stuff, and the external ones for "real" audio apps.
Most "real" audio apps are smart enough to detect external speakers, and let you select them explicitly, while non-audio apps just use the default, so it works fine...
Except iTunes doesn't support this.
Why can't I explicity select the Audio ouput I want to use. It's not a security/copyright thing, as I can already output to the device by setting it as the default output.
iTunes should spot multiple audio out devices, and pop them up in the Computer/airtunes button.
(actually Airtunes SHOULD be a regular audio device, and then this would all work as it should, but that's a different argument, which I'm not going to win).
Ian

You can select your sound outputs using system preferences. select sound , select device output.
or you can go into utilities and open audio midi setup and choose your system output.
Hope this helps:)
pH

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Send same stream to multiple audio outputs

Hi! I've just unsuccessfully tried to send the same output (an iTunes stream) to *headphones line out* and *usb conected speakers* (harman kardon). I've tried with "Soundflower" feature "aggregate audio devices" but I was only able to play from one single output. I also tried with *Audio Hijack pro* but with no luck, maybe because of my lack of experience with that program. Has anyone any clue about this situation? Thanks a lot!!
p.s.: I don't know if this is the right forum to post my question, moderators feel free to move it to the appropriate one.

Audio Hijack Pro will do it. Use "Sound" system preference to set output to one device you want. In Audio Hijack Pro's "Input" tab, set "Source Type" to "Application", select iTunes, click "Hijack", make sure "Mute" is off, go to the 'Effects" tab, click the top-left blank square to insert an effect, choose "Auxiliary Device Output" from "4FX Effect" and set "Device" to the other desired audio output. Use "In" gain on the effect to control its volume.

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Sound Bunny is a nice replacement for Detour, which got lost in the move from PPC years ago. Hoever, there is a small bug with sites with audio (auto-play audio, that is) in Safari 7 (at least). They return the error below and won't load. This happen on other sites, but if it happens on the Google site as well, then something is seriously wrong. The company tech support insists: "SoundBunny will not stop any website from loading. SoundBunny is a audio controlling software and does not control which websites to load." ~ Abu; Prosoft Engineering Customer Support
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Multiple audio outputs/inputs with OX Yosemite

Hi! I want to use 2 headphones (with each a microphone) at the same time to record a live radio show. However, with OX Yosemite, I can't seam to be able to select more than one output and input simultaneously. Is it possible to do that? If not, what should I do?
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If you need only multiple destinations, then you don't need to make an aggregate device. Create a Multi-Output Device in the "Audio MIDI Setup utility" (located in the Utilities folder inside the Application folder.
Add any Audio Interface to it. You can rename it if you want and then select that device in the GarageBand Preferences as your Audio Device.
Here is an experts from my manual "GarageBand X - How it Works" where I explain the app a little bit more.
Hope that helps
Edgar Rothermich
http://DingDingMusic.com/Manuals/
'I may receive some form of compensation, financial or otherwise, from my recommendation or link.'

Multiple audio output

I need a software that will give me user interactivity.To
swap movieclip and swap sound on keyboard events
I need one pc to be able to do this. However here is the
problem..
I can get as many movies playing as I like by fiddling around
with the stage and positioning mc's etc.(This was using flash) and
they swap and change properties etc when the relevant event occurs.
The sound is a big problem. I need to have each of these
movies with its own unique sound.So that lets say I have five
moveis each will have its own set of headphones. I will be using an
M Audio ten channel output sound card
and I need to be able to send sound seperately to each of
these headphones. That is five stereo channels.
Basically during authoring I need to be able to say play
"sound_1" on channel one of my audio interface..play "sound_2" on
channel two etc. I have been searching for a software solution to
this problem for a little while now and then remembered Director.
We used flash before and we had to mute and pan channels with
a sound object but this still only gave us two.
We cannot use a whole bunch of pc's to achieve this and
besides that just seems a cumbersome way to achieve the above.
If anyone knows if Director is cabable of doing that I would
be most gratefull to hear from them. Or even any software that will
work. If you have attempted or come across an answer to this
problem I would also be delighted to hear
Thanks in advance
Peter

Is there a way to choose the various sound cards on your
computer? The link you suggested only applies to Mac and I'm
looking for something cross platform.
I choose:
sound = trace(_sound.soundDeviceList)
and I just get
-- ["DirectSound", "MacroMix", "QT3Mix"]
Can I get the actal names of the sound cards attached to the
computer?
Thanks!

Multiple audio outputs - HDMI & Audio out

Hi all,
This is driving me a little nuts, so any help greatly appreciated! With the new Mac Mini models, you can have audio out via HDMI or the line out. I am thinking to hook the mini up to an LCD TV/monitor via HDMI (sound on the monitor) and also to my other TV/sound system via the mini DP and audio out.
I assume when the mini turns on it'll activate both displays (if they are turned on), and from what I understand you can have two displays running. I'd only want one at a time so I'd have the other display switched off. But can the mini output audio to either both, or whichever system I am using? I've read a lot of posts but can't find a definite answer. I only want audio (and video for that matter, but can turn off other screen) to one TV at a time, but do I have to go into the OS audio settings each time I want to swap between the two?
I'm also thinking of using Plex and keeping it open at all times, just sleeping the mini when not in use. Can the mini only output to one source, requiring manual switching to the other (i.e. going from HDMI to audio out)?
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I would consider using a switcher for the video. And use the osx sound output selection to change the audio.

How to chang audio-output-device(s) in Windwos 8

Hi,
currently I’m working on an application that starts by changing the audio-output-device and ends with re-setting the old one.
On Windows XP I do this by changing the Registry-entry “Sound-Mapper” and it works quite well.
I hopefully assume it works on all Windows Systems from XP to Windows 7.
The background is that our program is supposed to play certain multi-channel sounds over an external USB-multichannel-soundcard and it should switch to that device on start. To actually play the sounds we use the AxWindowsMediaPlayer-Class
to integrate the Windows-Media-Player in our application.
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Hi Kristin,
I think your reply pushed me in the right direction.
The waveOutOpen-function is part of the
winmm.dll-API and I think, that API is the solution to my Problem.
Unfortunately I am stuck at this point. I tried mciSendString and mciSendComand. Both are cappable of playing sound, but I am unable to change the output Device.
This is my c# code to open a WAV-File via mciSendCommand:
MCI_OPEN_PARMS open = new MCI_OPEN_PARMS();
open.wDeviceID = 0;//this is somehow ignored
open.lpstrDeviceType = Marshal.StringToHGlobalAnsi("waveaudio");
open.lpstrElementName = Marshal.StringToHGlobalAnsi(@"test.wav");
IntPtr ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(MCI_OPEN_PARMS)));
Marshal.StructureToPtr(open, ptr, false);
mciSendCommand(Convert.ToUInt32(textBox2.Text),
MCI_OPEN,
MCI_WAIT | MCI_OPEN_TYPE | MCI_OPEN_ELEMENT,
ptr);
Afterwards I use mciSendCommand to start the playing of the sound, which works fine, but no matter what I enter in the “open.wDeviceID”-Line, I always get sound over
the default output.
I use waveOutGetDevCaps to get the number and kind of the output-Devices and this works fine.
Regards, Marc

Audio output port moves and wont let me plug in my cable

Suddenly, when i try and put in the audio jack for my 2 speakers into my iMac it seems to not click in. When i shined a flash light at it the port it seemed to move when i plugged in the cable. This has all happened rather quickly which is making me confused. I use my iMac for gaming and never plug in cables with a heavy hand as i am young and i promised to look after this iMac. After understanding what has happened, i ask my parents what might have happened and they did not have a clue. My question is whether it is normal for the silver ring inside the port's hole usual moves and why my cable isn't clicking in.
EDIT:
- I have tested multiple audio output devices like speakers, earphones and headphones and it still wont click and it still moves.
- My iMac is running with 8gb of ram, Intel Iris Pro 1GB Graphics card and 2.7 GHz Intel Core i5 processor.
If you need any more details please request them.

Clean the lint/debris from the connector.

Multiple USB Audio Outputs?

Is it possible to set up the mac mini to have multiple USB audio out puts? I'm wanting to use a mini displayport + usb audio > hdmi cable to a plasma for computer use. But is I want to listen to just plain music use USB audio to a DAC into a 2 channel system. So for this system I would need to use 2 USB outputs for music.
Thanks

Sure,
You can output sound through more than one little external USB sound card, but probably not to more than one at a time. You'll have to select the Output in the Sound Preferences each time to switch them, too.
But don't overlook the Mini's internal sound output as one of your 2-channel or 5.1 audio outputs. The 2009 Mini has better audio output than the PPC Mini, that I also had and used an external USB sound card with (M-Audio Transit). Of course, now there are cheap little external USB sound cards that look like a little thumb drive for an added 2-channel audio output. So, I'd use the Mini's internal output and an Optical cable for 5.1 sound out, if I were going to use one of those cheap little sound cards. But you can go the other way, too, if you want, with a better USB dongle (like the M-Audio Transit) for your 5.1 sound.
Please let us all hear how it goes and what path works for your application.
Peace to you,
C. Livingstone

Problem with multiple applications using one audio output

Hey there, I'm having issues setting up my 5.1 headset seen here (http://www.sharkoon.com/?q=en/content/x-tatic-digital) to work with multiple applications.
Right now I have audio streaming from a flash video, when I try run "$ speaker-test -c 6" I get the following error:
speaker-test 1.0.25
Playback device is default
Stream parameters are 48000Hz, S16_LE, 6 channels
Using 16 octaves of pink noise
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave
Playback open error: -16,Device or resource busy
If I try open another application which uses this device, the first application has its sound cut off.
2 more things to note:
- My preference for setup would be audio output through S/PDIF and input through USB, with the USB output disabled (To not waste system resources).
- I unmuted all channels in ALSA, however when I ran the test only 2 channels seemed to be working (Front L&R), it may have been defaulting to the USB connection, in which case, that explains only 2 channels being in use, is there a method of setting the S/PDIF as default system wide?
Thanks in advance for any help given!

brebs wrote:It's put the comments on multiple lines - fix that.
Woops, I guess my paste messed up, new .asoundrc: http://pastie.org/3706033
I can run both at the same time, however I cannot hear any audio. Do I somehow have to change the default device, if so how can I do that?
Edit:
Restarted system now I get:
speaker-test 1.0.25
Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
Rate set to 48000Hz (requested 48000Hz)
Buffer size range from 2048 to 8192
Period size range from 1024 to 1024
Using max buffer size 8192
Periods = 4
was set period_size = 1024
was set buffer_size = 8192
0 - Front Left
Segmentation fault
(That's with both commands)
EDIT 2:
Interesting, apparently 2 audio streams are working, however the console thing still doesn't work..?
EDIT 3:
Didn't last long, now flash crashes and html 5 doesn't work -.-
EDIT 4:
Flash only works when other audio is active, however it has constant popping sound. I went through the system logs to get the errors of when flash crashes, it's audio crashing it, here's the error:
Apr 1 02:04:15 localhost kernel: [ 7057.499787] AudioThread[6227]: segfault at 7f2e2f7a8008 ip 00007f2e413a2786 sp 00007f2e33614ae8 error 7 in libasound.so.2.0.0[7f2e4131e000+eb000]
Last edited by B3NW (2012-04-01 01:11:04)

HT202000 Is there a way to have multiple audio sources sent to multiple outputs (i.e. communications with skype sent to headset, music sent to speakers )

Is there a way to have multiple audio sources sent to multiple outputs (i.e. communications with skype sent to headset, music sent to speakers ) I do this on my Windows but cannot find for mac. I am transitioning from Windows brain to Mac brain and having a little difficulty
OS Yosemite

Is there a way to have multiple audio sources sent to multiple outputs (i.e. communications with skype sent to headset, music sent to speakers ) I do this on my Windows but cannot find for mac. I am transitioning from Windows brain to Mac brain and having a little difficulty
OS Yosemite

Is there a way to have Firefox respect the default audio output device when it has been changed while Firefox is open?

I have been a Firefox user for many years and I still use it as my primary browser. One problem that has bothered me for years is the fact that when Firefox is open and I change my default audio output device, Firefox doesn't respect that change and continues playing audio through the device that was originally being used. Even if you stop the audio and continue playing, the output device doesn't change.
Is there any way this can be configured in Firefox? Now if I listen to music online (e.g. Soundcloud) I always use Chrome since it's respects the default audio output device change even while in the middle of playing audio.
Reproduce:
1. Start playing audio (e.g. from a YouTube video; HTML5 and Flash are affected)
2. Change your default audio output device
3. Audio will continue to play from original output device
Thanks!

This is the same issue that has plagued me for years. I always thought that this was a Flash plugin issue, but it does occur on HTML5 as well. A friend of mine verified that this does not occur in Linux, but only on Windows. It would be great to have this fixed, as it's honestly the only thing that's making me use Chrome all the time, as I don't want to have multiple browsers open.

Apple TV2 missing analog audio output for multi-zone system

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I have the same issue with a MacMini I use for music. My solution was to use an inexpensive optical splitter - one feed to the optical input of my receiver and the second to a DAC. Then run standard RCA audio cables from the DAC to the analog Zone 2 inputs.
Here is a link for a DAC
http://www.monoprice.com/products/product.asp?cid=104&cp_id=10423&cs_id=1042302&pid=6884&seq=1&format=2
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I'm looking for a hardware solution for my mid-2010 MBP w/ 2-4 audio outputs via USB or Firewire. On the software side, I want to have multiple media players open and playing simultaniously, but each output separately. I was told m-audio makes devices that allow this, but I am curious which may be the cheapest with this capability - or alternate manufacturers.

I think you'd have better luck going to the m-audio forums and asking your question.
http://forums.m-audio.com/
It would be hit or miss to find someone here who's an expert on your issue. Also, you might post your question to the Logic Studio forum here:
https://discussions.apple.com/community/professional_applications/logic_studio
There are a lot of sound people there who might point you in the right direction with a MacBook Pro.

How to play multiple audio tracks simultaneously?

Hi there,
I am having problem with playing multiple audio tracks. I want to play 2 or more audio tracks at exact time (without delay) - is it possible? how can it be done?

So, essentially, you're trying to take a recording of say, a singer and a guitar player, and end up with the singer in one file and the guitar in the other. Got it.
[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/Merge.html]
That sample will merge multiple input files into a single file. Because you want to play the files together rather than save them, just take the sample and strip out all of the DataSink stuff, and add the following line right after the Processor "outputProcessor" is realized...
outputProcessor.setContentDescriptor(null);
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