Audio port automatically changes to digital out

Hi,
I want to record audio from my MiniDisc unit to a 13" MacBook (Mac OS X 10.6.8) using GarageBand, Audacity or similar.
The MD unit is a Sony RH1, which has a Line out port. I connected this via a 3,5mm TRS connector to the combined Audio port of my MacBook.
The problem is that as soon as I plug in the other end of the 3,5mm cable into the Mac's Audio port, the computer's settings switch automatically to "Use audio port for digital out". I cannot choose to use it for input anymore. Using a Mini-TOSLINK cable instead didn't solve the problem.
How can I use the Line-in option of the MacBook to record audio in real-time?
Thanks in advance!

Talked to Tech Support about this when my machine locked up in this same fashion. There's a little "door" inside the headphone jack that can get stuck in the open position and keep the audio from switching back to the internal speakers / stuck in the digital (optical) output position...
The solution: the iPick... It's a toothpick, but if you use it to poke around inside the headphone jack until the little door gets unstuck, it becomes an iPick, and a box of them are very expensive, but they come in lovely colors and are very intuitive to use...
I'm not kidding... Stick a toothpick (or other non-conductive small stick) in the headphone jack and joog it around until it releases the little door...

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My audio out automaticly switches to digital out

When I start my computer my headphones audioout works fine for about 5-10min. then it automatic changes to S/P-DIF and I don't now why. The choice "headphones" in systempref. sound menu dissapears and replaces itself with Digital out.
Can you please help me.

Make sure the earphone jack is pushed all the way in. On iDevices it takes more force than typically.
To rule out hardware issues, check your headphones with another audio source. Check your iPad with a different set of headphones.

HT1338 audio output defaults to optical digital-out port

M audio out defaults to optical digital-out port; I cannot select internal speakers - it is not in the preferences menu

I experienced this same problem yesterday on my MacBook Pro, still searching for a solution, several other posts here indicate people have been experiencing this since at lease 2007. I have yet to find a clear solution.
It appears that occasionally inserting headphone causes this, it turns on the Optical digital-out port feature (red light glows inside the headphone port) and takes away the internal speakers option. Restarting did not restore it, but for some reason after sitting asleep overnight the sound started working again and the internal speaker option return in the Sound - Output Window, and the Optical Digital-out option went away.
Here is another post with some ideas on this
https://discussions.apple.com/message/4160477#4160477

Audio output changed to 'Digital Out' and speakers don't work! Please help!

I'm not exactly sure what's happened, but after starting up my macbook pro, my speakers/audio haven't worked.
The volume control in the menu bar is inactive (looks light grey) and in the Sound menu, I have no option for output devices except for 'Digital Out' - there is no other option for 'external speakers' (as per usual) or anything!
I can plug earphones in, and sound comes out fine... I don't know what may have happened, but I'm really worried - I use my MBP for home & work; I need my speakers to work!!
If anyone can offer any advice, I'd be really grateful. Thank you in advance.

Talked to Tech Support about this when my machine locked up in this same fashion. There's a little "door" inside the headphone jack that can get stuck in the open position and keep the audio from switching back to the internal speakers / stuck in the digital (optical) output position...
The solution: the iPick... It's a toothpick, but if you use it to poke around inside the headphone jack until the little door gets unstuck, it becomes an iPick, and a box of them are very expensive, but they come in lovely colors and are very intuitive to use...
I'm not kidding... Stick a toothpick (or other non-conductive small stick) in the headphone jack and joog it around until it releases the little door...

SoundBlaster X-Fi Xtreme Audio: mic not working with digital out

I don't know if it is a design problem or a software problem, but with the digital output enabled, I cannot get the front panel mic input to work. Does anyone know the answer to this?

does anyone know since what version this has changed? Seem like the design is going backwards

Audio Console to default 96kHz Digital Out?

+Does anyone know how to get the Audio Console to default 96kHz SPDIF output sampling rate instead of 48kHz? each time I restart the PC or return from sleep, it defaults back to 48kHz. Would this be a manual registry changeI am running windows 7 x64 w/ Audigy 2 Platinum. Thanks.

Yes of course, here is the specs of my amp
Exceptionally high dynamic power and overall performance with 92kHz/24-bit D/A converters, 2 Surround Programs and 3 digital inputs.
5.-channel, 550W powerful surround sound (0W x 5 Max)
92kHz/24-bit D/A converters for all channels
Analog mixdown
Quad-Field and Tri-Field CINEMA DSP
Dolby Digital EX Matrix 6. and DTS-ES Matrix 6. compatibility plus Dolby Pro Logic II decoding
4 surround programs
Night Listening mode and SILENT CINEMA
Powerful 32-bit Yamaha LSI (YSS-938) for CINEMA DSP processing
Easy setup and operation (Basic Menu)
5-band center graphic equalizer
Speaker A or B selection
Wide-range frequency response for DVD-Audio/SA-CD compatibility
Program name and sound field indications
6-channel external decoder input
Preset remote control unit
[url"]http://www.yamaha.co.jp/english/product/av/products/ht/rxv350.html[/url]
So yep, can do up to 92hz according to that.

Buzz or Hum in Audio Port

My MacBook Pro has a low-level hum or buzz coming out the audio port
whenever sound is coming out of it, and for 25 seconds more. Then it stops.
The noise sounds a bit like the 60-Hz hum or 120-Hz buzz from tube amps,
but it occurs even when my MacBook is running on its batttery,
unplugged from its power supply.
The buzz is constant, independent of orientation of my computer, and sounds
about the same in all locations I've tried.
I can't hear it from the computer's speakers, but that's probably because
the built-in speakers' frequency response drops off above the most prominent
frequencies in this buzz. I can hear it through Apple's earbuds faintly.
The buzz is most annoying through audiophile headphones or external speakers.
The buzz occurs with any application that makes sound. Even system
bleeps will cause it. After the sound stops, the buzz continues for 25 seconds.
Then the buzz stops.
I took my computer to the Genius Bar, but it was so noisy there that neither of us
could hear the buzz. He took it in back where he used Apple earbuds, then reported
that the machine is "in spec". Well, foo.
Any idea what happens inside the computer 25 seconds after the music stops?
I suppose I could try USB sound output. Any recommendations?
--Gil

Hi, fane_j--
What MBP are you talking about?
Well, System Profiler puts it this way:
Model Name:
MacBook Pro
Model Identifier:
MacBookPro5,5
Processor Name:
Intel Core 2 Duo
Processor Speed:
2.53 GHz
Number Of Processors:
1
Total Number Of Cores:
2
L2 Cache:
3 MB
Memory:
4 GB
Bus Speed:
1.07 GHz
Boot ROM Version:
MBP55.00AC.B03
SMC Version (system):
1.47f2
It has just one 3.5mm + S/PDIF audio port, called "Combination Output" by System Profiler, used for either input or output, depending...
Intel High Definition Audio:
Audio ID:    77
Headphone:
Connection:    Combination Output
Speaker:
Connection:    Internal
Line Input:
Connection:    Combination Input
Internal Microphone:
Connection:    Internal
S/PDIF Optical Digital Audio Output:
Connection:    Combination Output
External Microphone / iPhone Headset:
Connection:    Combination Output
Headphone:
Connection:    Combination Output
Speaker:
Connection:    Internal
Line Input:
Connection:    Combination Input
Internal Microphone:
Connection:    Internal
S/PDIF Optical Digital Audio Output:
Connection:    Combination Output
External Microphone / iPhone Headset:
Connection:    Combination Output
Does this answer your question?
--Gil

My MacBook Pro has no audio. Sounds preferences showing output is Optical digital-out port. How do I change this to built-in speakers?

My MacBook Pro has no audio. Sounds preferences showing output is Optical digital-out port. How do I change this to built-in speakers?

I experienced this same problem yesterday on my MacBook Pro, still searching for a solution, several other posts here indicate people have been experiencing this since at lease 2007. I have yet to find a clear solution.
It appears that occasionally inserting headphone causes this, it turns on the Optical digital-out port feature (red light glows inside the headphone port) and takes away the internal speakers option. Restarting did not restore it, but for some reason after sitting asleep overnight the sound started working again and the internal speaker option return in the Sound - Output Window, and the Optical Digital-out option went away.
Here is another post with some ideas on this
https://discussions.apple.com/message/4160477#4160477

TS5150 Does the optical digital audio port send out a Dolby Digital signal

Does the optical digital audio port send out a Dolby Digital signal

Yes if the media has such an audio track available it can do so.
There is a setting for audio and video allowing DD output to be set for Auto (on/off if connected HDMI device can decode DD), On or Off.
AC

No sound out of my MAC PRO Optical Digital audio port

I own a Mac Pro early 2007, running MAC OS X Ver 10.6.7
I also have a set of Logitech Speakers Z5500 connected to the Optical digital port
No problem ever until now
Suddenly I am not getting any sound out my Mac Pro.
The speaker are testing fine, the volume is set correctly and in the system preferences, in the Sound function the device is selected for Digital Out.
I am at my rope's end.
Any help will be appreciated
Thanks
Carlos

sircolio:
I took my apple to teh Apple Store and one of the geniuses analyzed to be a hardware problem.
It will cost me $500.00 to have fixed. Thanks but not thanks

[Forum FAQ] How to tell if the DAC port is automatically changed or not

Introduction
Per Books Online:
http://msdn.microsoft.com/en-us/library/ms189595.aspx
SQL Server listens for the DAC on TCP port 1434 if available or a TCP port dynamically assigned upon Database Engine startup.
Also, we can go to the following registry to specify the DAC port number manually:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQLServer\SuperSocketNetLib\AdminConnection\Tcp
The error log contains the port number the DAC is listening on. Besides looking at the error log, how to find which port is used by DAC connection and how to tell if the DAC port is manually set by us or assigned automatically by SQL Server?
Solution
The following query can be used to check if there is an existing DAC connection and it also give us the port number used by dedicated admin connection.
SELECT name,local_tcp_port FROM sys.dm_exec_connections ec
join sys.endpoints e
on (ec.endpoint_id=e.endpoint_id)
WHERE e.name='Dedicated Admin Connection'
Here is the scenario to test if the DAC port is automatically changed or not.
There are two instances are running on one server. I specified the same DAC port number 5555 for the two SQL Server instances by modifying the registry
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL11.MSSQLSERVER\MSSQLServer\SuperSocketNetLib\AdminConnection\Tcp
Opened the DAC connection to instance 1. Executed the above query, it returns the result:
name
local_tcp_port
Dedicated Admin Connection 5555
Then, opened a DAC connection to instance 2. It throw out the following error message:
Sqlcmd: Error: Microsoft SQL Server Native Client 11.0 : Client unable to establish connection because an error was encountered during handshakes before login.
Common causes include client attempting to connect to an unsupported version of SQL Server, server too busy to accept new connections or a resource limitation (memory or maximum allowed connections) on the server..
Sqlcmd: Error: Microsoft SQL Server Native Client 11.0 : TCP Provider: An established connection was aborted by the software in your host machine..
Sqlcmd: Error: Microsoft SQL Server Native Client 11.0 : Client unable to establish connection.
Sqlcmd: Error: Microsoft SQL Server Native Client 11.0 : Client unable to establish connection due to prelogin failure.
The above error message was thrown out because the DAC port number 5555 was not available for instance 2 which was occupying by instance 1. After restarting the SQL Server engine service of instance 2, if checking in the registry, you would see a new DAC port
number has been assigned to the second instance.
Then, the DAC connection to instance 2 succeed this time and executed the above query, it returned the same port number which is same as the one in the registry key and the port number was assigned automatically.
DAC port will not change even SQL Server service is restarted only if the TCP port is available.
More Information
http://msdn.microsoft.com/en-us/library/ms189595.aspx
Applies to
SQL Server 2012
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.

I tested your script after
establishing a DAC connection from SSMS 2014. It worked as described. Thank you.
SELECT name,local_tcp_port FROM sys.dm_exec_connections ec
join sys.endpoints e
on (ec.endpoint_id=e.endpoint_id)
WHERE e.name='Dedicated Admin Connection'
name local_tcp_port
Dedicated Admin Connection 1434
Kalman Toth Database & OLAP Architect
SQL Server 2014 Design & Programming
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

2009 Mac Pro no audio out from Line Out and/or Digital Out.

Hey guys, I recently bought a new tv which has an optical input and thought I'd buy an optical cable to connect it to my Mac Pro's (4.1 model 2009 I believe) digital out port which I have never used before .
The issue I'm facing since is that I can't get out from my mac pro to my tv. I also bought a cable to direct sound from my mac pro's line out, to my tv's red/white stero audio ports.That didn't work either.
When I select Digital out as the default audio output in Sound preferences the OS says that there are not default audio controls for that device and the sound icon in the menu bar is greyed out while when I switch to line out output I can control volume but no audio is coming from my TV.
I've been searching on forums and didn't find any relevant answer so if someone knows what may cause this that'd be really helpful.
*ALSO: I've got windows 8 instaleld on my mac pro as well. The digital out doesn't work there as well although the line out does send sound to the TV.
** I also have soundflower installed and perian although I don't think any of them would mess things up like that.
Do you think this is a problem with my Mac or is this a common Mavericks issue (sorry forgot to mention I'm on 10.9.2)
Many Thanks,
Thanos.

When I select Digital out as the default audio output in Sound preferences the OS says that there are not default audio controls for that device and the sound icon in the menu bar is greyed out
That's normal. Is the correct audio input selected on the TV?

Digital audio port?

I'm a newbie with this stuff... and I'm wondering about the "digital audio" port on my G5 dual-core. What does it do, and should I be using it? Right now I have my keyboard/mixer combo going into the normal "audio-in" port.

I don't think I've ever heard of an Optical-Out (that's what it really is) on a keyboard, they are generally analogue and/or MIDI (Digital).
As for the mixer, it would be labeled or at least be in the manual if it had it. I would be very surprised if it were a "hidden" feature.
I must confess to not being too well versed in Optical Ins/Outs because like most of the people here I use FireWire and USB devices instead, but everything I've seen that had them clearly labeled the fact.

M-Audio Studiophile AV 40 monitors with imac optical digital out

I'm looking to purchase these monitors for my imac or ones very similar to them and was wondering how I go about hooking them up to the imac. I've read that I would have to use a mini-TOSLink cable to use the optical digital out, but how do I go from that to the RCA on the back of the monitors? Do they make a mini-TOSLink cable to RCA cable? Any help would be greatly appreciated.

aberrant_soul wrote:
I've read that I would have to use a mini-TOSLink cable to use the optical digital out,
but how do I go from that to the RCA on the back of the monitors?
No, the AV 40 inputs are line-level analog RCA; they 'don't understand' digital audio,
and the conversion requires more than a cable -- you'd need an D-to-A converter.
You could run an analog signal to the monitors with just a cheap miniplug-to-RCA
(analog) adaptor from Radio Shack; but if you want to use the iMac's digital output,
you'll need some sort of external digital-to-analog conversion hardware.
I don't know of any inexpensive stand-alone TOSLINK-to-analog converters, but
there are many USB-to-audio products that would allow you to feed digital audio
from the iMac to the AV 40's -- but through a USB port, rather than TOSLINK.
Search for "USB audio" on amazon.com and/or newegg.com.
Looby

When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

When I unplug Apple headphones from my MacBook Pro sond from internal speakers not work, and system soud preferences displayed: Output: optical digital out port only

If you see a red light in the audio output port, then the internal switch is stuck. Insert the earphone plug a few times and see if you can trip the switch. If that fails, insert a cocktail stirrer and the like and jiggle it around inside. If that fails, take it to an Apple store and have the technicians at the genius bar do it for you.
Ciao.

Audio port automatically changes to digital out

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