MacBook's Audio outputs for deejaying problem.

OK. Here's the scenario.
As you all know, the MacBook has one audio output that also serves as a digital output, so it's one or the other. I have that output connected to an amplifier via the digital option. Since I'm going to use the laptop for deejaying, I also bought USB headphones to use as the cue for the DJ software (Torq). The problem I'm having is I can't put two different sources for the Master and the Cue. I can, however, choose one source and specify the channels. For example, I can use channel 1 for Master and channel 2 for Cue and have two mono channels. This doesn't help either because I'm using the digital option for the output to my amplifier. I've also tried SoundFlower to no avail because in the DJ program, there are 2 sources for SoundFlower, one with (2ch) and the other with (16ch).
Any suggestions or anything that will help me solve this problem will be appreciated.
If there are external sound cards or anything of the sort please tell me.

dvobgo92 wrote:
No help whatsoever? Disappointing.
Hi,
I just saw this.
Yes... there are many, many audio devices available that will give you the options you need.
There are both Firewire and USB options.
However, you may be able to get this going with what you have.
In AudioMIDI setup, (in Utilities folder) create a new Aggregate device.
I'm hoping the USB headphones show up there as an audio device.
Basically, you create a new aggregate device, use built-in audio for the Input Device, make it clock master, include all of your output devices then name the Aggregate device.
It should show up in your audio programs and allow you to select what outputs you need.
Don't know if it will work but worth a try.
pancenter-

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Hello! I have an iMac that I lose the audio output for certain profiles. The audio output will work on one profile, but when switching to another profile, I lose the audio output. I've reset the NVRAM/PRAM and that hasn't solved the problem. Help!

Hello!
I have an iMac (running iOS 10.6.8, not upgraded to Lion) that I'm having audio issues with. I have 5 profiles on this machine. The audio output will work fine out of one profile, then when switched to another, the profile will not have any audio output at all. Rebooting the machine will occasionally solve the problem. Administrator permissions are not the issue since this has also manifested itself on the administrator profile. I've also reset the NVRAM/PRAM and that hasn't helped. All my software is up to date and I recently upgraded the RAM to 2x2GB sticks. This problem was existing prior to the RAM upgrade.
Any suggestions? Thanks in advance!

Hi Tony,
Long shot, but...
Open Audio Midi Setup in Applications>Utilities, see the input & output options & KHz setting there, some things will change it for their own use, then not set it back.

HOW TO: HDMI Audio Output for Zotac Media Box with nVidia ION :)

I've been fighting with my recently purchased Zotac mini-PC for about 2 months now trying to get the HDMI audio output to work. I tried extensive modifications of /etc/asound.conf, different versions of ALSA, and even OSS without success. I've finally succeeded using ALSA and GNOME.
First I installed ALSA according to the Arch wiki.
Next I verified that ALSA detected my sound card(s):
cat /proc/asound/cards
0 [Intel ]: HDA-Intel - HDA Intel
HDA Intel at 0xfe9fc000 irq 28
1 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfcf7c000 irq 18
Next I checked which sound card had the HDMI jack:
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC888 Analog [ALC888 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC888 Digital [ALC888 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: NVIDIA HDMI [NVIDIA HDMI]
Subdevices: 1/1
Subdevice #0: subdevice #0
From these two commands, I concluded that I have 2 sound cards (important later on) and that my HDMI sound card was card 1 (NVidia) and that it had 4 possible devices (3,7,8, and 9). To determine which device must be used, I ran the following command for each device (for example, to test card X and device Y, use' plughw:X,Y'):
aplay /usr/share/sounds/alsa/Front_Center.wav -D plughw:1,7
Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
I tried each device and got the best sound from device 7 (8 and 9 also worked, device 3 gave static...).
Now, since I had 2 sound cards, I needed to change the default ALSA device. My default ALSA device was card 0 (the Intel card), which wasn't plugged in, so I needed to change the default card to be card 1 (the HDMI card). After reading the ALSA FAQ, I found that modifying /usr/share/alsa.conf should work, though modifying /etc/asound.conf should have also worked. For whatever reason, I couldn't get my modifications to /etc/asound.conf to work, so I edited /usr/share/alsa/alsa.conf. In the "# defaults" section I replaced the following:
defaults.ctl.card NVidia
defaults.pcm.card NVidia
defaults.pcm.device 7
I opted to use the key NVidia rather than the card number (1) since I've read in numerous places that the card index can change unexpectedly after a reboot/update. The key can be checked with cat /proc/asound/cards as shown above.
After this, I reloaded ALSA (/etc/rc.d/alsa restart) and verified that the sound worked through the default channel:
aplay /usr/share/sounds/alsa/Front_Center.wav -D default
Playing WAVE '/usr/share/sounds/alsa/Front_Center.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Mono
Finally, I rebooted, chose the HDA NVidia (ALSA Mixer) option from gnome-volume-control, and loaded a movie in gnome-mplayer. I was pleased to hear crystal clear sound with functioning volume control
I Hope this helps someone else, I found it very hard to piece together how to diagnose and resolve this problem. Here are some of the resources I found useful:
Arch Wiki ALSA Page
ALSA FAQ for how to change default sound card
ALSA FAQ
XBMC Troubleshooting for ION HDMI

@sprince09 Can you hear sound through HDMI when you run aplay /usr/share/sounds/alsa/Front_Center.wav -D plughw:1,7 ?
(8 and 9 also worked, device 3 gave static...)
- what does it mean? How do you know that they are working?
What options do you have for snd_hda_intel in /etc/modprobe.d/ ? Can you play the following:
mplayer -ao alsa:device=hw=1,7 file.wav
BTW, can you hear sound form video files in xine? If yes, can you post your ~/.xine/config ?
Last edited by knedlyk (2012-01-21 23:41:57)

No variable audio output for Cisco CHS 435HDC set top box.

Background: Until the other day I had my stb connectected to a TV, using TV sound, with an HDMI cable. The P265v2 remote volume control changed the TV volume. No problems.
My new TV & home theater system was recently installed. We don't use the TV speakers. While my first preference was to program the Verizon remote to change the volume on my Onkyo receiver, this did not appear to be an option on the remote's programming instruction page on the Verizon website. Instead, I am directed to change a setting on the remote that makes the Verizon remote change the stb output volume vs the tv volume. I changed the setting on the remote and ensured the stb box was set up for "variabe" audio output.
Problem: Using the stb variable audio settings, volume settings 1 through 30 produce the same volume. (Volume setting 0 produces no volume, as one would hope.) It appears the "variable" setting isn't producing a variable output as it should be on this unit.
Thinking that maybe the receiver was complicating the sitation, I tried connecting the stb to the old TV and the new TV directly and had the same results.
Now, while I am watching TV, I need to have the receiver remote at hand in addition to the Verizon remote. It would be nice to have the volume be adjustable as it should be while using the Verizon remote. I don't like the idea of using a seperate universal remote because then I would lose some of the functionality that the Verizon remote provides when watching TV, using the DVR, watching on demand, etc.
I would like to know if this is a problem just with my unit, or if it exists with all of these units, which would hopefully be fixed with a Cisco/Verizon firmware update soon, hopefully.
Thank you.

soups230 wrote:
Having same issues with hdmi and optical. Any fix to this.
Hello,
In order to control the volume on your home theater system, you'll need a FiOS TV Universal Remote that has the 4-buttons on the top for 'DVD', 'Aux'iliary, 'TV' and 'STB'. The audio receiver would have to be programmed into the FIOS TV Remote, and controlled using the 'Aux'iliary button.
Verizon's 4-Button Universal Remote Controls are available for purchase:
a) online via www.verizon.com/fiosaccessories
OR
b) at a local FiOS TV store (call first to check if they have them in stock). For a list of stores: http://www22.verizon.com/support/residential/tv/fiostv/general+support/account+issues/questionsone/8...
Presently, the default remotes for new set top boxes are the 2-button P-265 (newer version) remotes.
Regarding a problem with HDMI/optical on Cisco 435 STBs, check out the following:
Go to this webpage: http://www22.verizon.com/Support/Residential/TV/FiOSTV/Receivers/Equipment+Issues/QuestionsOne/12839...
Click on the link for 'Cisco CHS 435 HD DVR User Guide'.
Open the PDF and go to page 22 for 'Connecting to a Home Theater System...'.
Hope this helps!

Digital Audio output for W series - Alternatives

There's a thread talking about the displayport does not have audio-output. Its true and some people get victimized by ill-trained sales people who think their displayport is standard. There's no literature on Lenovo website warning users about the audio issue either - such thread is closed with the fact that (some) other manufacturers in the same period does have have audio either and Lenovo think they should be in the same boat.
Let's not go into the blamish again, but discuss what we can do with existing options with alternative digital audio out and line-in that the W series really really missed.
We have (1) mini-dock and (2) USB soundcard listed as options
I currently use a USB DAC (digital to analog) system and it do really good in terms of stereo music enjoyment. However my particular system does not have digital manupilated sound like 3-D surround or multi-channel output and not suprisely, laptop USB generally produce greater latency than desktop USB ports.
Besides USB, we have 1394 and express card 34 as expansion options.
What's your setup for digital audio out? Anyone know any internal soundcard that fits the slots of Wireless USB/Turbo memory PCI ports that all W-series have?

Other alternatives include
I know on mackbooks I've seen firewire used as an input for a Weiss Dac if you're into two channel audio. Do any reiceivers take firewire as an input for hometheater? Has anyone tested Firewire outputs on their W series? I'm told that firewire is sometimes preferable to USB, I'm not sure why this would be, can USB support passthrough of DTS encoded signals?
In the case that firewire works and you Do not have a firewire source, maybe something like this would be of value It converts firewire to digital coaxial s/pdif and allows passthrough of DTS and AC3.
http://www.m-audio.com/images/global/manuals/FireWire-Audiophile_Manual.pdf
As I'm into audio the critical thing here (and what you're paying for when you purchase blue-ray, is maintaining the digital information from the disk in an unconverted form. You want a direct bit pass through, and you want as little jitter introduced to the signal as possible. You most certainly don't want the sound card getting in the way, Digtital to Analog converting and then reverse packaging it up and putting it out over the soundcard digital out. My problem is I'm not familiar enough with computer audio to know how exactly the sounds is transmitted from your blue ray drive to the digital interface you've chosen.
Anyone know why USB digital out would not be a prefered method?
Moderator note; comment removed which contravened forum rules

Using built in optical digital audio output for 5.1

So, lets say i want to mix something in 5.1 using logic or soundtrack pro, can i use the optical digital audio output of my macbook to send the signal to a home theather or something to mix it?, or i need a special hardware card for this?
Thanks a lot!!

Hi alece,
Just to clarify something;
When using an optical cable there are several standards of audio that can pass through the cable:
S/PDIF - a stereo signal - http://en.wikipedia.org/wiki/Spdif
AC3 or Dolby Digital - up to 5.1 surround - http://en.wikipedia.org/wiki/Ac3
Dolby Digital Plus - up to 7.1 surround - http://en.wikipedia.org/wiki/DolbyDigitalPlus
ADAT Optical - up to 8 channels of audio - http://en.wikipedia.org/wiki/ADAT_Lightpipe
MADI - up to 64 channels of audio - http://en.wikipedia.org/wiki/MADI
I´m sure other people can add more to the list if they want to, my point is that these signals can pass through the exact same kind of optical cable.
The important bit to know is what does your equipment and software support... in theory your question is quite logical, a software can play 5.1 surround to a optical output like Apple DVD Player does with the built-in sound card of a modern mac. However, Logic does not support live encoding of AC3. That is why you have to output the surround mix in Logic to a sound card with at least 6 channels (5+1 as in 5.1) connected to your speaker system. Typically this would be 5 active studio monitors plus a sub. If you were thinking to use an existing stereo I would not recommend it since most consumer speakers have no limiters to protect them from damage (but may be possible depending on your amplifiers inputs)
I hope this answered your question
Cheers Espen
http://www.midiamore.com.au/

Optical digital audio output for mac book?

Hello, I am wondering if MacBook pro Retina version has the Optical digital audio output or thunderbolt adapter? so i can use optical cable to do output for my music.

Hi alece,
Just to clarify something;
When using an optical cable there are several standards of audio that can pass through the cable:
S/PDIF - a stereo signal - http://en.wikipedia.org/wiki/Spdif
AC3 or Dolby Digital - up to 5.1 surround - http://en.wikipedia.org/wiki/Ac3
Dolby Digital Plus - up to 7.1 surround - http://en.wikipedia.org/wiki/DolbyDigitalPlus
ADAT Optical - up to 8 channels of audio - http://en.wikipedia.org/wiki/ADAT_Lightpipe
MADI - up to 64 channels of audio - http://en.wikipedia.org/wiki/MADI
I´m sure other people can add more to the list if they want to, my point is that these signals can pass through the exact same kind of optical cable.
The important bit to know is what does your equipment and software support... in theory your question is quite logical, a software can play 5.1 surround to a optical output like Apple DVD Player does with the built-in sound card of a modern mac. However, Logic does not support live encoding of AC3. That is why you have to output the surround mix in Logic to a sound card with at least 6 channels (5+1 as in 5.1) connected to your speaker system. Typically this would be 5 active studio monitors plus a sub. If you were thinking to use an existing stereo I would not recommend it since most consumer speakers have no limiters to protect them from damage (but may be possible depending on your amplifiers inputs)
I hope this answered your question
Cheers Espen
http://www.midiamore.com.au/

Apple TV2 missing analog audio output for multi-zone system

Found out the hard way that most receivers can't support digital audio in multiple zones (i.e., Zone 2). Since Apple TV2 (ATV2) dispensed with any analog output, if you have a whole-house system that depends on mult-zone to distribute audio to various speakers, you won't be able to use ATV2 to stream music to anything other than Zone 1. The only outputs are HDMI and optical (both digital audio). I think I found a work around (which, of course costs more money) which is a "de-embedding" device from Atlona that takes HDMI in and splits out the audio to analog and passes the HDMI through to the receiver. The analog audio output then lets me connect to the analog in on the receiver so it can stream to all zones. I figure Apple just didn't have enough real estate on the new product to make room for analog, but it's a pain. Hope this helps someone. If anyone knows a better work-around, I'd love to hear it.

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
They should have the splitter as well.

USB Audio output for a intel Mac Mini

Is there a USB Audio output device I can get for the Intel Mac Mini, that works in both Mac OS X and Windows XP Home?
I took my Mini apart to put in a hard drive, and now the sound sometimes doesn't work (Internal or External).
-Locutus

This?
http://www.griffintechnology.com/products/imic

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My sound on my mid 2013 MBA has gone. Under prefeerences, there is nothing under device output. I have restarted several times; no luck. I looked under Mac HD, library, prefs, audio,; but could not find any audio files to delete as per one thread. Under utitlites went to audio midi etc, but could not find any listed audio output device list. I have repaired disk permissions. Done a shut down and restart. But still audio is greyed out, and no devices show up under system prefs, sounds, for output device. PLEASE HELP... I am in Zambia and closest apple dealer is in S.Africa. Thank you.

Go step by step and test.
1. System Preference > Sound > Output > Internal Speakers
    Highlight Internal Speakers / Headphones
    Make sure that Mute is not enabled.
2. Remove the headphone.
    If you see red light in the headphone port, plug the headphone
    in and out of the port 5 or 6 times to flip the microswitch inside.
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3. Reset PRAM. http://support.apple.com/kb/PH4405
4. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
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Optical audio output for IMAC

My new IMAC 2.66gh 24" is coming. Just wondering if the IMAC can output true bit stream audio signal through the toslink cable. I have a Logitec 5400 THX 5.1 Speaker system support THX, Dolby Digital, DTS hard decode. What I heard from other website saying is IMAC can only output 2.1 channel audio sound through optical. If that is true then my 5.1 speaker system is useless.

Hi Kl2999
Welcome to Apple Discussions
Have a look at the > [iMac Audio System Audio Developer Notes|http://developer.apple.com/documentation/Hardware/Conceptual/HWTechAudio/Articles/Audio_implementation.html#//apple_ref/doc/uid/TP40003978-SW281200331167]
+*S/PDIF Optical Digital Output*+
+The S/PDIF optical digital output is automatically selected when an S/PDIF optical digital output device is detected on the external combo audio port. The S/PDIF optical digital output supports PCM and AC-3 audio formats with the following stereo data stream characteristics:+
+PCM: 16, 20, or 24 bits per sample at sample rates of 44.1 kHz, 48 kHz, or 96 kHz+
+AC-3: 16 bits per sample at sample rates of 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, or 192 kHz+
+The S/PDIF optical output channel status conforms to IEC 60958-3 consumer mode digital audio.+
+During playback of a 1 kHz sine wave (S/PDIF output format at 0 dBFS output level, 44.1 kHz sample rate, 24-bit sample depth, unless otherwise specified) the digital audio output has the following nominal specifications:+
+Jack type: 3.5 mm (1/8”) stereo combo+
+Digital audio signal-to-noise ratio (SNR): > 130 dB+
+Digital audio total harmonic distortion + noise (THD+N): < -130 dB (0.00003%)+
Dennis

Dual monitor use audio output for movie and other for MBP

is it possible im watching a movie on one and wated to answer factime call or watch youtube on my mbp and just screamed out my tv speakers.....i want fual monitoring but separate audio any help?

Other alternatives include
I know on mackbooks I've seen firewire used as an input for a Weiss Dac if you're into two channel audio. Do any reiceivers take firewire as an input for hometheater? Has anyone tested Firewire outputs on their W series? I'm told that firewire is sometimes preferable to USB, I'm not sure why this would be, can USB support passthrough of DTS encoded signals?
In the case that firewire works and you Do not have a firewire source, maybe something like this would be of value It converts firewire to digital coaxial s/pdif and allows passthrough of DTS and AC3.
http://www.m-audio.com/images/global/manuals/FireWire-Audiophile_Manual.pdf
As I'm into audio the critical thing here (and what you're paying for when you purchase blue-ray, is maintaining the digital information from the disk in an unconverted form. You want a direct bit pass through, and you want as little jitter introduced to the signal as possible. You most certainly don't want the sound card getting in the way, Digtital to Analog converting and then reverse packaging it up and putting it out over the soundcard digital out. My problem is I'm not familiar enough with computer audio to know how exactly the sounds is transmitted from your blue ray drive to the digital interface you've chosen.
Anyone know why USB digital out would not be a prefered method?
Moderator note; comment removed which contravened forum rules

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CPU: T2400 1.83GHz Core 2 Duo
RAM: 2x 1GB Nanya PC5300 DDR2 667MHz
Hello,
I've been trying to get two new computers running using these Mobile Core 2 Duo motherboards. I have had 2 of 3 motherboards exhibit the same problem with detecting audio jack activity - when no activity is actually happening.
In the first failure, the board never worked at all. It never detected that a jack was plugged in. In this second one, it worked right for about 2 hours, then flashed some messages saying "Audio Jack has been unplugged", and then it has never worked since.
The Realtek Audio configuration tool now indicates no jack is plugged in when I insert a speaker plug into the light green colored jack. Conversely, the one board of the three that is working correctly highlights this jack in the software app when it detects the plug.
I hate to keep sending these boards back to the seller, but it looks like I have to send another one back. Are these boards prone to having audio jack problems? Is there an easy fix for this? Is it just a connector problem?
Thanks,
James

To reproduce the problem, I just have to leave the machine on for an hour or so. After the driver is installed, a Realtek Audio applet is constantly running, shown in the bottom right corner of the task bar. This applet automatically pops up a windows when it detects any jack activity.
Unfortunately, it just pops up (rapidly, about five times in a row) detecting random jack unplugging and plugging in, when I'm not even touching the machine and not running anything (Windows idle). As soon as I acknowledge the event by clicking 'OK', it pops up another window, and another, until it has finally decided that a jack is not present. Then the sound no longer functions because it thinks no plug is inserted into the analog output jack.
Thanks,
James

How do I set the default audio output for all users

Here's the story. I have a Mac Pro in a classroom that is connected to the audio system via the digital (Toslink) output. The systems are bound to AD and OD with some minor management being performed via MCX (printers, login, etc...)
When a new user authenticates to the system the output defaults to the internal speakers not the Digital Out.
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However it seems that new users are still generated with the Internal Speakers which is AppleHDAEngineOutput:1B,0,1,2:0.
Is there somewhere else that I can configure that default such that all users will default to the Digital Out, AppleHDAEngineOutput:1B,0,1,4:2? Or am I perhaps not configuring the SystemSettings plist correctly?
Most of these tasks were previously taken care of by another technician but he has left and I'm quickly trying to pickup the slack for configuration of our Macintosh environment.
Thanks,
-alex-

Best answer I could find: [https://mike.kaply.com/2012/03/16/customizing-firefox-autoconfig-files/#comment-132668]
If you can figure out how to add the printer name, this can be used to lock the margins.

MacBook's Audio outputs for deejaying problem.

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