Help! no sound input/output devices

Help! error message in garageband = Core Audio Selected Driver not found. (-10202) In system profiler, it shows Intel High Definition Audio:
Device ID: 0x106B00A2
Audio ID: 0
I've never used the garageband app before, but went into it and ran updates for the first time. This is around the same time the audio stopped working. It's been a few weeks now and I'm going crazy without my sound!
macbook air1,1 Mac OS X (10.5.8)

Maybe check your settings in the following locations:
• Sound Preference Pane in System Preferences
• Audio Midi Setup in Utilities folder
• Garage Band Preferenes (Audio/MIDI)

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Setting up audio input/output devices

I'm running AA3 with an Alesis USB 2.0 mixer attached to my computer. I want the mixer to act as my audio input device, and the computer's soundcard to act as the output. Now, when using AA1.5, I could simply set the audio input device as the USB mixer, and the output device as the soundcard, and I could record and playback without any issue. However, when I go to set the mixer as my input device, AA3 also seems to want to make this my output device. I do not want the mixer to act as the output, I want all output to go through the soundcard. How can I make this distinction in AA3? Let me know if you need more information, I'll be happy to provide it.
Cheers!
Sean

>So, while working in AA1.5, I'd arm a track for recording, hit record, and it would record the sound source I plugged into the mixer. Then I'd hit play, and it would play what I just recorded through my speakers, which are hooked into my soundcard. Then, I'd arm a different track for recording, and once I hit record, I would hear the track I'd just recorded playing through my speakers, while recording a new track, which was being brought in through the mixer. I'm still not entirely clear on why this isn't possible in AA3, or if it is, and I'm just missing something.
That's a different issue. And it's perfectly possible in 3.0, assuming that you have your sound device set up correctly to use ASIO, and Audition's input and output assignments set to use what's available in it. In fact there are more options in 2.0 and 3.0, because if you use the ASIO driver directly, you can use real-time monitoring
through Audition rather than through the mixer direct path (which is the usual way). The advantage is that you can add channel effects like reverb to the monitor mix, which often helps singers. This only applies to the monitor feed though - what's actually recorded is 'dry', so you still have all of the effects options available afterwards. To use this mode set the monitoring to 'Audition Mix'.
But however you look at it, the overall monitoring situation works fine - or believe me, just about every user going would have complained about it by now!
So, you can't really compare AA1.5 and 3.0 from a monitoring point of view - the ASIO situation makes them look somewhat different. 1.5 effectively ignores monitoring - it just uses the Windows APIs and DLLs to record, which is essentially what's provided by the operating system. And that's why it works with any sound device that the OS recognises. But with 2.0 and 3.0 you are entirely reliant on a system that bypasses most of the OS in order to work faster (lower latency).
One of the snags with this is that a lot of sound device providers that aren't producing what might be described as 'pro' devices - in other words the providers of on-board sound chips, and a few more besides - don't always provide anything like an acceptable ASIO driver for their devices, and that's why ASIO4ALL was developed.

Help! No Audio Output device is installed

My speaker in bottom right for My sound say "No Audio Output Device Is Installed" and i have tried to go through many things to solve such as go into device manager and enable or update through there etc...to no avail.
I stumbled across a thing that worked for most people. Recovery Manager. but. I don't have it on my computer to try so i have no other options to turn to. Can someone please help on how to fix this issue

Dear Customer,
Welcome to the HP Consumer Support Forum!!
To isolate the issue please perform the steps below:
1. Restart the computer.
2. Check the Sound icon in the taskbar.
3. If the icon has an X in the lower corner, click the Sound icon in the taskbar or
4. Right-click the icon, and then click Troubleshoot sound problems.
5. The audio troubleshooter checks for sound problems. When the troubleshooter finishes, it displays the results.
6. If the computer has sound, the issue is resolved.
Install Original Realtek High Definition Audio Driver from the link below:
http://support.hp.com/us-en/drivers/selfservice/HP-Pavilion-Slimline-s5000-Desktop-PC-series/3942804...
From the above link click on Driver-Original > Original Realtek High Definition Audio Driver > Download and install the same.
In case the issue still persists and if the audio was working fine earlier, you may perform system restore to previous working condition using the steps mentioned in the link below:
http://bertk.mvps.org/html/restoresysv.html
Hope this helps, for any further queries reply to the post and feel free to join us again.
**Click the KUDOS star on left to say Thanks**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
GR1
Although I am an HP employee, I am speaking for myself and not for HP

Problem with sound input/output settings

Hello--
Last night, my iBook suddenly stopped playing any sounds at all: itunes, CDs, etc, won't play at all. I looked in system preferences/sound, and the computer told me that there are no input or output devices at all. What's more, the sound seems to me on permanent mute, and it won't allow me to change it at all (F4 and F5 functions just show a "mute" sign under the volume bar). Is this a problem with the software, hardware, or what? Thanks in advance for any advice,
JB Coleman

here is a set of weird but probable solutions. Good luck
Solutions

Audio: no input - output devices macbook pro late 2011

My computer has no audio input or output devices anymore.
This problem appeared after I had used a software oscilloscope to test an amplifier. The amp was connected through the mic input. It worked for a couple of minutes and then the audio went mute. I'm suspecting, that the circuits took a hit although the input power wasn't excessive.
I have reinstalled the OS, restarted the coreaudio daemons, plugged-in / out a mini jack, reinitialized the audio preference files but all with no results. The audio is dead... as if the relative circuits where non existant .
The Apple hardware test doesn't seem to see the audio circuits and ends with a "all ok".
I'm left with the following questions :
Is there a hardware test for audio ? Is there a fuse / protection circuit for the audio circuit ?
Thank's for any ideas.
See sig. for hardware

Hi,
I have exactly the same problem and It happened in a similar situation.
Did you find a solution?
Thanks

Sound: Changing output device

Turned on my machine and discovered that it had self assigned a program as the sound out put device. It's CD spin doctor from Toast; no audio on it. I removed Toast, emptied the trash and shut down then restarted. It's still listed as the output device. I can't change the device - there's no list - I can't delete it or add another device. any thoughts on how to fix this problem? I have no audio at all.

if there is no audio at all, could be hardware issue.
somebody recommends deleting following preference files:
/Library/Preference/com.apple.audio.DeviceSettings.plist
/Library/Preferences/com.apple.audio.SystemSettings.plist
http://discussions.apple.com/thread.jspa?messageID=10500893
best case it's just corrupted preference files

No Sound - Audio Output Device has stopped working

Hi.
I've recently bought a new HP Pavilion 15 Notebook PC Product Number F4T62EA#ABU with Windows 8 64-bit. The audio device is a Realtek High Definition Audio device.
All was working fine until a few days ago when the audio device stopped working. Here is the device status:
"Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)".
I've tried to update the driver for the device but it is already up to date. Can anyone let me know how this can be fixed please?

Hi mailman1326,
Welcome to the HP forum!
Thank you for your inquiry, I am happy to help!
I understand that you are getting the error "Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)".
Have you made any changes? Did you update to Windows 8.1?
Here is a link to the software and driver page for you computer. HP Pavilion 15-n098sa Notebook PC Drivers. You can use Windows restore to go back in time to when it was working correctly. Using Microsoft System Restore (Windows Vista). You can do a Performing an HP System Recovery (Windows 8) to restore back to factory. You could also run the built in troubleshooter to help.
Follow these steps
a. Press Windows key + C to open charms
b. type in troubleshoot sound
c. select troubleshoot sound on computer and follow the on screen prompts.
Another suggestion is to run the HP Support Assistant. Please let me know the results.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

NEED HELP: No Sound / Audio "No Devices Found". Tried many solutions, none work

I have had this issue two months back, where my internal speakers just stopped working. I have tried all alternatives and what solved my problem was resetting SMC. This time around, I have been watching some videos when all of a sudden my laptop started acting really slow and was responding in delays for about 10-15 seconds and there was no sound. I quit Safari but that didn't help, so I restarted my laptop. After the restart, it keeps showing as "mute" whenever I try to increase/decrease the sound level.
I have tried the following:
Restarting
Inserting Headphones
Restarting again
Resetting PRAM
Resetting SMC
Deleting com.apple.BezelServices.plist
Shutting down coreaudiod in the Activity Monitor
Disabling Adobe Flash Player,
Re-installing OSX using the Command + R during startup
Also tried typing this in the Terminal:
sudo kextunload /System/Library/Extensions/AppleHDA.kext
sudo kextload /System/Library/Extensions/AppleHDA.kext
And restarting it another few times for a good measure.
I've got Mid-2012 Macbook Air and I do not have Boom.
This is getting pretty frustrating now.

Also tried typing this in the Terminal:
sudo kextunload /System/Library/Extensions/AppleHDA.kext
sudo kextload /System/Library/Extensions/AppleHDA.kext

Sound Multi Output Device

Hello All, I have used Audio MIDI Setup to establish a bluetooth stereo with the internal speakers on my iMac. However the audio output's are out of synch. The iMac speakers are slightly ahead of the bluetooth speaker. Is there a correction?

Thank for your reply, however it didn't solve my problem.
I can send surround sound over hdmi to TV, and then TV can send it to the amplifier.
What I can not do is to send surround sound directly from Mac Mini to TV (via HDMI) + amplifier (via toslink) - so that I can switch off TV and have sound on amplifier.
I also have the multichannel options options greyed out (as described in this thread: https://discussions.apple.com/message/19584051). But what I am talking about is sending sound as Dolby (which can be done with VLC), not PCM.

Is it Possible to Use a Laptop as input/output device with X11 Server?

I have a dedicated server for which I have no monitor/mouse/keyboard, but I can connect my laptop to it with an Ethernet cable. Would it be possible to somehow use the laptop as if it was the screen/input of the server by connecting them over LAN?
Last edited by error17 (2010-04-02 23:15:49)

Yeah, I should definitely look into X forwarding.
tomk wrote:You didn't say if the server is running X or not (servers don't need X, btw). If it's not, plain and simple ssh is the way to go.
heh, alright. Since SSH is what I used to control servers very far away, I figured there would be a more elegant way to do this when the machine is just 4 meters away with LAN connectivity. I also find it convenient to have a GUI when doing anything major on the server.
As I do not want X11 running all the time, I'm guessing that I would first need to have plain-SSH that I could use for minor stuff.
If I then want to do anything major, I'd use the SSH to start the X11 server and then connect a second time but with X11-SSH.
Last edited by error17 (2010-04-03 00:15:30)

Where is the ROM memory, input and output devices located on personal computers (laptops)

I have an assignment due that requires I locate the ROM memory and input/output devices. Where can i find these items?
Amanda

If this is your homework, please complete it yourself. We're not here to help you avoid studying.

I am trying to run my electric guitar in garageband 11 but there is no options to modify the inputs/outputs to built

There is no option to modify the sound input/output to built-in input or built-in output. I'm guessing the electric guitar is not being registered. I am using a 1/8" mono -1/4" mono cable to go directly from the output jack on my electric to the headphone jack on a macbook pro. How can I get this to work?

When you use an external device for input, GB often automatically selects that same device for output. It's an ease-of-use feature for most external devices. If your device doesn't give you the option to output to speakers/headphones, you don't want GB to do that.
Within GB, go to GB>Preferences, Select the Audio/Midi tab. In the Drop-down under output, choose "Built-in Output" and connect your external speakers/headphones to the Mac's headphone port (Alternately, you could use system preferences to direct your Mac's audio-output to your speakers and select "System Setting" in GB Prefs. The Mac's own speakers aren't going to be nearly as much fun as running it to your big speakers/headphones).
Hope that makes sense...

Macbook Air Audio Output Device Gone

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.
    Sound output may be stuck in the digital mode.
3. Reset PRAM. http://support.apple.com/kb/PH4405
4. Reset SMC.     http://support.apple.com/kb/HT3964
    Choose the method for:
    "Resetting SMC on portables with a battery you should not remove on your own".
5. Applications > Utilities > Audio MIDI Setup
    Audio Devices window
    Side Bar
    Click the Built-in Output.
    Under Mute any of the boxes checked? If so, uncheck it.

Utility to switch between Bluetooth headset and built-in audio input/output

I'm looking for a utility that will switch the Sound preference settings between my Mac's built-in audio input/output device and my Bluetooth headset for use with applications such as Skype.
The way I envision it working is that I would click an icon at the top of the screen and it would toggle the Sound preferences settings from
Output = Line Out (or Digital Out)
Input = Line In (or Digital In)
to
Output = (my Bluetooth headset)
Input = (my Bluetooth headset)
or vice-versa.
That's it. It doesn't need to automatically detect my headset as I might be using the headset on another device. Just a button that would toggle between the built-in and Bluetooth device settings.
Has anyone seen anything like this?

Thanks, it works great.
It would be even better if one could define device groups. e.g. Headset, built-in devices, etc. I'll drop a note to the developer.

How can I get my audio input and output devices back? I have no sound and cannot see any of the devices in Audio MIDI Setup..??

Hi, I tried to set up a new output audio device on my mac that would have multiple outputs (iBox Twist speaker and my internal speaker) but when I went to click onto one of the iBox Twist (there were 2 options available: iBox Twist and iBox Twist Stereo), Audio MIDI Setup crashed and when I finally got that back open, I found that there were no audio input or output devices to be found. My sound is working, as when I turn on my iMac, the starting sound still plays, however the volume control in the menu bar is no longer a black colour, but grey and when I try to change the sound on my keyboard it does not change. This already happened to me once, and after 3 hours I managed to fix it very simply (switching off Mac, unplugging power cord, leaving for 15 seconds, plug power cord back in and switch Mac back on, holding Alt, Cmd, P and R keys until you hear the Starting Up sound twice) however this same technique that fixed it once before is not working this time and I am still stuck without sound. I have tried Repair Permissions, rebooting in Safe Mode, Hardware Test and checking for Software Updates. Has anyone else had this problem and managed to fix it?
Thanks in advance for any help anyone can give me!

In case anyone has had the same problem as me, I have just managed to fix this by doing the following:
Switch off Mac
Switch back on in Safe Mode (Hit power button, then hold Shift key until a loading bar appears at the bottom of the screen).
Switch off Mac again
Remove power cord and wait 15 seconds
Plug power cord back in and hold down the keys alt, cmd, p, r all at the same time until you hear Starting chime for a second time and hopefully your audio will back.

Help! no sound input/output devices

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