USB output devices and GarageBand 08

I have seen several posts discussing that Garage Band 08 does not use the USB Companion 5 speakers as an output. Does anyone know if there is a way to get Garage Band to use USB as an output? Additionally does anyone know if Apple has any plans to support USB output? I have some expensive speakers going to waste with Garage Band.

Not from what I have seen in the threads and throught my own personal experience. My Itunes plays great through the Bose Speakers. In Garage Band if I choose Built in as the Audio Output Channel...no probs...if I change it to USB Bose or Match Systems settings which are also USB....Garage band hangs and I get the rainbow wheel of death when I do anything.
http://discussions.apple.com/thread.jspa?messageID=6118937
http://discussions.apple.com/thread.jspa?messageID=6315926&#6315926

Similar Messages

Output Device and Format issues in Background?

Hi, all:
I have a issue. when I run the job as the background. whatever I choose which Output Device and Output Format. after finishing job. double click on the spool number. the Output Device is always LP01. Format is X_PAPER.
Anybody knows what happend in SAP.
Thanks in advance.

Hi Yunfa Zhang,
what is defined as ABAP program in the Job's step? Maybe it ignores whatever you specify and reads the LP01 from somwwhere else, i.e. your user settings.
Regards,
Clemens

HT2518 How do I export mail from windows xp to my mac? Can I just copy all my windows mail to a USB storage device and plug it into my mac?

How do I export mail from windows xp to my mac? Can I just copy all my windows mail to a USB storage device and plug it into my mac?

Select "export' while in Windoz/Outlook and cerate an export file, then while in MacOS/Outlook select "import" and select the same file to import. You can use a thumb drive to sneakernet the file.

Recently I've been getting repeating static noise through USB connected devices in GarageBand

I've been using GarageBand for recording for the past year. Only recently have I encountered an issue with the use of ANY usb connected device. I'm using a Macbook Pro Retina 15" and the connected devices I've encountered the issue with are a Blue Snowball Mic, M-Audio Axiom 49 Midi Controller, and guitars plugged in via a Rocksmith Cable... pretty much any time I record through USB I get a repeating static noise approximately every 35 seconds that lasts for 2-3 seconds. The noise is very prevalent and sounds very much like what cell signal noise sounds like. I tested putting my iPhone into Airplane mode hoping that would solve the issue but to no avail.
I've been using this same exact setup for over a year and only in the last month has there been any problem like this.
Anyone else seeing this problem and does anyone know of a solution... it's pretty much rendered GarageBand useless for recording at this point for me.

Fixed my own problem... if anyone else has this issue and sees this all I had to do was update to ML 10.8.3 and it took care of what ever bug was in the system.

USB Audio Devices and Intel iMac

With the release of 10.4.10 and the subsequent Intel audio update to suppress the "popping" noise, Apple managed to break my output of audio through an external USB sound card (in my case a Yamaha DP-U50). The device is still recognized as an input device and works fine for that purpose -- output is simply not available.
What's more frustrating is that the device works fine with my PowerBook G4 (in both Tiger and Leopard), so it appears to be Intel specific.
From the forums then, the problem also appeared to affect many other's input devices as well.
It doesn't appear that anyone ever managed to find a fix for this issue in 10.4.10 and consequently, I'd been expecting Apple to simply fix the bug in Leopard.
Well...I installed Leopard 2 days ago and there's been no change. The device is still recognized as an output device by the G4 PowerBook and not by the Intel iMac.
If anyone has gotten such a device to work with either Leopard or 10.4.10, I'd really appreciate some troubleshooting tips.

I do have a Yamaha AP-U70 attached via USB to a PowerBook G4. It did work as audio input and output device in tiger (up to 10.4.11) but is now in leopard only visible as input device.
I would be very happy if someone finds a hack to reenable it.
regards,
André

Conflict with the output device and the page format.

Hi Experts,
I have two output device, one as "deskjet_printer" and one as "EPSON". Page format is "ZJV". Now, when I am taking a print preview with "deskjet _printer" output device, it is working fine, but when I am taking it with "EPSON", it gives me an error message as "Table TEMPLATE1 does not fit into window". We need to take a printuot with EPSON output device. I think we need to attach sometthing with it and I am missing something somewhere.
How to achieve this issue. Please help me in this. Appreciate your inputs on this.
Thanks in advance.

Increase the size of window or reduce the width or height og Template1 in smartform.

Multiple usb interface devices in Garageband

Here is the question.
we are a church trying to utilize an H4n recording device to tape all services.
This can go onto an sd card then copied over and edited in Garageband. What we wish to do is utilize the H4n to record directly to Garageband but it only uses the two channels to do so once USB is setup for it. What we would like to to perhaps use 2 devices connected to the macbook via a usb hub, this would in theory give us the option of recording via built in mics on H4n on one and channels 1&2 on the other.
Is this feasible or should we use atmoshpere mics connected via the soundboard and go that route??
Regards and thanks

brentmills wrote:
would like to to perhaps use 2 devices connected to the macbook via a usb hub
you can create an aggregate device from them:
http://www.bulletsandbones.com/GB/Tutorials.html#allaboutaggregatedevices

Input problem with UCA202 usb audio interface and Garageband

Hello, i've tried to connect my guitar in my UCA202 Bheringer audio Interface, and the sound goes fine for few minutes and after i get a noisy distorsioned sound with a big delay...
I dont know if the problem comes from the MacBook, the sound card, Garageband or else...
it come only from input guitar device.
Thanks to help.
Alex

There are other posts concerning this problem. I also have a UCA202 and a Peavey PV10 USB mixer. It seams that anything using the 10.4.11 or 10.5.1 mac USB drivers are having this issue. I had to go back to 10.4.10 to resolve at this point. My recordings are clean when going back. There is 10.5.2 comming soon and it is not known if this will fix it. Check this thread for updates.
http://discussions.apple.com/message.jspa?messageID=5964474#5964474

I have a USB internet device and every time I connect it, the MacBook restarts. What do I do?

My MacBool restarts every time I connect my USB internet deivce to it. What do I do?

Or, get the proper drivers from wherever you got the device.

USB External Device and Tiger

I just upgraded to Tiger from Panther. When booting I had to have my Plextor drive turned on to be recognized. (USB 1.1) With Tiger, same procedure is followed, sometimes computer boots fine, sometimes I get the dread multi-language black box prompting a restart. Eventually computer does come up, but either way, it crashes when a CD burn is complete.
There are no issues when computer is booted with burner off, other than the fact I can't burn a disk because the device is not recognized.
??

dennisdster
As far as I know Plextors are not directly
supported
by OS X. you may want to download
http://www.versiontracker.com/dyn/moreinfo/macosx/2510
0>patch burn which will help apple oriented
applications "see" it. BTW, how do you connect the
drive to your mac?
Thanks for your response!
The URL you provided for the patch gets "The page you
tried was not found"
The drive is connected via USB at the back of the
tower.
Excuse the Sunday morning stupidity - burner is connected via SCSI

How to set and test a USB keypad device in VISA Raw mode

I can setup a simplified USB keypad device using NI-VISA Raw mode but I can't seem to read interupt data from the device. Basically, I want to be able to push a button on the USB keypad device and then read the output hex code using LabVIEW. Do I have to further configure my device through NI-VISA in order to read the device output?

This example shows how to get the interrupt from your USB device.
InterruptUSB.vi
Let me know if this helps!
Shawn B.
National Instruments
Use NI products on Linux? Come join the NI Linux Users Community

10.6.8 - No Audio/Output Devices!!

I've had countless computer problems lately, but have traced the roots of these problems to the audio files.
My mac detects no output devices, and I have attempted all *simple* suggested solutions to fix that. I still get a startup sound. I do get sound through my USB headset, and have found that Skype DOES NOT work unless this headset is plugged in. Skype will crash when the headset is not plugged in.
I also have an unusually slow boot-up time, and after running it in verbose mode, have found that it gets stuck on some AppleHDA.kext files, as well as some com.AppleAudio~~~ files. The names disappear before I can write down the specifics.
Is there a way to find a solid set of completely new audio files and install those? What should be present as far as Audio kext files and com.appleaudiowhatever files? Anyone have any advice? A clean reinstall of OS X did nothing.

From what I've read, an OS installation will not usually fix these problems. I'm not super Mac savvy, so I wouldn't know why that is, but I know that an alteration of some files HAS been helpful for some people. I just don't know enough to know what in specific to do. I have found that some of my audio related kext files haven't been in the right place etc. (AFTER the reinstall), and given that information, maybe those aren't replaced during a reinstallation and that's why.
Anyway, I've done an SMC reset, PRAM reset, NVRAM reset, checked sound preferences, checked the Audio Midi Setup, plugged headphones in and out several times, opened Garageband, checked the System Profiler in which built-in audio input&output were listed, started from safe mode, used a root account, opened (booted from the OS X CD) Utility Disk and did all possible repairs, and followed all of the instructions listed here. I found, however, as many people suggested:
"I deleted the Audio dir and created a new one as root in the terminal. Can do it like this:
sudo mkdir /Library/Preferences/Audio
then set permissions, er owner:
sudo chown -R _coreaudiod:admin /Library/Preferences/Audio
Then change the input in the sound pref pane using an admin account. Should create the file."
I found that the "chown" command was always an illegal option.
Basically, I've determined that this isn't a logic board problem because the startup sound operates normally, and the System Profiler lists the audio devices. I just need the computer to recognize/utilize/whatever the internal speakers&mic.
I go to college in a few days and am desperate to solve this.

Generic "usb midi device" in 10.9 / Mavericks

What does Mavericks need to use the product string from the USB descriptor as the name of the MIDI port? I have an assortment of USB Audio Class 2.0 compliant audio + MIDI interfaces. Some behave as they do in Mountain Lion and earlier: If manufacturer Foo makes a product Bar with audio and MIDI interfaces, then the Audio Midi Setup windows will show an audio interface named Bar, and a MIDI port named Bar. If you double-click on the MIDI port, it shows the Model, "Bar," and additional information, including the manufacturer Foo, as retrieved from the USB descriptor. This is expected and desired, especially with devices that unlock features in non-free software.
However, with Mavericks, some devices (staying with the Foo/Bar example), though the audio interface gets named Bar, show up in the MIDI Studio window of AMS as "USB MIDI Device," and double-clicking reveals the manufacturer and model to be "Generic" and "USB MIDI Device," respectively. If you use the drop down menu at the top of this window to switch to a different configuration, or define a new one, while the device is connected, it appears in the second configuration as Bar, with the correct manufacturer.
Now, according to https://developer.apple.com/library/mac/technotes/tn2274/_index.html, the Interface Association Descriptor needs to group all the audio descriptors together, they need to be contiguous, and they need to be ordered by Audio Control, then Audio Streaming, then MIDI streaming. The device that isn't coming up correctly meets those criteria, so I wonder what else is missing.
Here's a dump:
Information for device Bar (VID=0x0f00 PID=0x0baa):
Connection Information:
Connection status: Device connected
Device actual bus speed: High
Device is hub: No
Device address: 0x0001
Current configuration value: 0x01
Number of open pipes: 5
Device Descriptor:
0x12    bLength
0x01    bDescriptorType
0x0200    bcdUSB
0xEF    bDeviceClass   (Miscellaneous device)
0x02    bDeviceSubClass
0x01    bDeviceProtocol
0x40    bMaxPacketSize0   (64 Bytes)
0x0f00    idVendor
0x0baa    idProduct
0x0010    bcdDevice
0x01    iManufacturer   "Foo"
0x03    iProduct   "Bar"
0x00    iSerialNumber
0x02    bNumConfigurations
Device Qualifier Descriptor:
0x0A    bLength
0x06    bDescriptorType
0x0200    bcdUSB
0x00    bDeviceClass
0x00    bDeviceSubClass
0x00    bDeviceProtocol
0x40    bMaxPacketSize0   (64 Bytes)
0x01    bNumConfigurations
0x00    bReserved
Configuration Descriptor:
0x09    bLength
0x02    bDescriptorType
0x0169    wTotalLength
0x05    bNumInterfaces
0x01    bConfigurationValue
0x00    iConfiguration
0x80    bmAttributes   (Bus-powered Device)
0xFA    bMaxPower   (500 mA)
Interface Association Descriptor:
0x08    bLength
0x0B    bDescriptorType
0x00    bFirstInterface
0x04    bInterfaceCount
0x01    bFunctionClass   (Audio Device Class)
0x00    bFunctionSubClass
0x20    bFunctionProtocol
0x00    iFunction
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x00    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x01    bInterfaceSubClass   (Audio Control Interface)
0x20    bInterfaceProtocol
0x00    iInterface
AC Interface Header Descriptor:
0x09    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x0200    bcdADC
0x08    bCategory
0x0087    wTotalLength
0x00    bmControls
AC Clock Source Descriptor:
0x08    bLength
0x24    bDescriptorType
0x0A    bDescriptorSubtype
0x29    bClockID
0x03    bmAttributes
0x07    bmControls
0x00    bAssocTerminal
0x0E    iClockSource   "Foo Internal Clock"
AC Clock Selector Descriptor:
0x08    bLength
0x24    bDescriptorType
0x0B    bDescriptorSubtype
0x28    bClockID
0x01    bNrInPins
0x29    baCSourceID(1)
0x03    bmControls
0x0D    iClockSelector   "Foo Clock Selector"
AC Input Terminal Descriptor:
0x11    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x02    bTerminalID
0x0101    wTerminalType   (USB Streaming)
0x00    bAssocTerminal
0x28    bCSourceID
0x04    bNrChannels
0x00000000    bmChannelConfig
0x12    iChannelNames
0x00    bmControls
0x06    iTerminal   "Bar "
AC Feature Unit Descriptor:
0x1A    bLength
0x24    bDescriptorType
0x06    bDescriptorSubtype
0x0A    bUnitID
0x02    bSourceID
0x0000000F    bmaControls(0)
0x0000000F    bmaControls(1)
0x0000000F    bmaControls(2)
0x0000000F    bmaControls(3)
0x0000000F    bmaControls(4)
0x00    iFeature
AC Output Terminal Descriptor:
0x0C    bLength
0x24    bDescriptorType
0x03    bDescriptorSubtype
0x14    bTerminalID
0x0301    wTerminalType   (Speaker)
0x00    bAssocTerminal
0x0A    bSourceID
0x28    bCSourceID
0x0000    bmControls
0x00    iTerminal
AC Input Terminal Descriptor:
0x11    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bTerminalID
0x0201    wTerminalType   (Microphone)
0x00    bAssocTerminal
0x28    bCSourceID
0x04    bNrChannels
0x00000000    bmChannelConfig
0x16    iChannelNames
0x00    bmControls
0x00    iTerminal
AC Feature Unit Descriptor:
0x1A    bLength
0x24    bDescriptorType
0x06    bDescriptorSubtype
0x0B    bUnitID
0x01    bSourceID
0x0000000F    bmaControls(0)
0x0000000F    bmaControls(1)
0x0000000F    bmaControls(2)
0x0000000F    bmaControls(3)
0x0000000F    bmaControls(4)
0x00    iFeature
AC Output Terminal Descriptor:
0x0C    bLength
0x24    bDescriptorType
0x03    bDescriptorSubtype
0x16    bTerminalID
0x0101    wTerminalType   (USB Streaming)
0x00    bAssocTerminal
0x0B    bSourceID
0x28    bCSourceID
0x0000    bmControls
0x07    iTerminal   "Bar "
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x01    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x01    bInterfaceNumber
0x01    bAlternateSetting
0x02    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
AS Interface Descriptor:
0x10    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x02    bTerminalLink
0x00    bmControls
0x01    bFormatType
0x00000001    bmFormats
0x04    bNrChannels
0x00000000    bmChannelConfig
0x12    iChannelNames
AS Format Type 1 Descriptor:
0x06    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bFormatType
0x04    bSubslotSize
0x18    bBitResolution   (24 Bits/sample)
Endpoint Descriptor:
0x07    bLength
0x05    bDescriptorType
0x01    bEndpointAddress   (OUT Endpoint)
0x05    bmAttributes    (Transfer: Isochronous / Synch: Asynchronous / Usage: Data)
0x00D0    wMaxPacketSize   (208 Bytes)
0x01    bInterval
AS Isochronous Data Endpoint Descriptor:
0x08    bLength
0x25    bDescriptorType
0x01    bDescriptorSubtype
0x00    bmAttributes
0x00    bmControls
0x02    bLockDelayUnits   (Decoded PCM samples)
0x0008    wLockDelay
Endpoint Descriptor:
0x07    bLength
0x05    bDescriptorType
0x81    bEndpointAddress   (IN Endpoint)
0x11    bmAttributes    (Transfer: Isochronous / Synch: None / Usage: Feedback)
0x0004    wMaxPacketSize   (4 Bytes)
0x04    bInterval
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x02    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x02    bInterfaceNumber
0x01    bAlternateSetting
0x01    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
AS Interface Descriptor:
0x10    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x16    bTerminalLink
0x00    bmControls
0x01    bFormatType
0x00000001    bmFormats
0x04    bNrChannels
0x00000000    bmChannelConfig
0x16    iChannelNames
AS Format Type 1 Descriptor:
0x06    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bFormatType
0x04    bSubslotSize
0x18    bBitResolution   (24 Bits/sample)
Endpoint Descriptor:
0x07    bLength
0x05    bDescriptorType
0x82    bEndpointAddress   (IN Endpoint)
0x05    bmAttributes    (Transfer: Isochronous / Synch: Asynchronous / Usage: Data)
0x00D0    wMaxPacketSize   (208 Bytes)
0x01    bInterval
AS Isochronous Data Endpoint Descriptor:
0x08    bLength
0x25    bDescriptorType
0x01    bDescriptorSubtype
0x00    bmAttributes
0x00    bmControls
0x02    bLockDelayUnits   (Decoded PCM samples)
0x0008    wLockDelay
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x03    bInterfaceNumber
0x00    bAlternateSetting
0x02    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x03    bInterfaceSubClass   (MIDI Streaming Interface)
0x00    bInterfaceProtocol
0x00    iInterface
MS Interface Header Descriptor:
0x07    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x0100    bcdMSC
0x0041    wTotalLength
MS MIDI IN Jack Descriptor:
0x06    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bJackType
0x01    bJackID
0x00    iJack
MS MIDI IN Jack Descriptor:
0x06    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x02    bJackType
0x02    bJackID
0x00    iJack
MS MIDI OUT Jack Descriptor:
0x09    bLength
0x24    bDescriptorType
0x03    bDescriptorSubtype
0x01    bJackType
0x03    bJackID
0x01    bNrInputPins
0x02    baSourceID(1)
0x01    baSourcePin(1)
0x00    iJack
MS MIDI OUT Jack Descriptor:
0x09    bLength
0x24    bDescriptorType
0x03    bDescriptorSubtype
0x02    bJackType
0x04    bJackID
0x01    bNrInputPins
0x01    baSourceID(1)
0x01    baSourcePin(1)
0x00    iJack
Endpoint Descriptor (Audio/MIDI):
0x09    bLength
0x05    bDescriptorType
0x02    bEndpointAddress   (OUT Endpoint)
0x02    bmAttributes    (Transfer: Bulk / Synch: None / Usage: Data)
0x0200    wMaxPacketSize   (512 Bytes)
0x00    bInterval
0x00    bRefresh
0x00    bSynchAddress
MS Bulk Data Endpoint Descriptor:
0x05    bLength
0x25    bDescriptorType
0x01    bDescriptorSubtype
0x01    bNumEmbMIDIJack
0x01    baAssocJackID(1)
Endpoint Descriptor (Audio/MIDI):
0x09    bLength
0x05    bDescriptorType
0x83    bEndpointAddress   (IN Endpoint)
0x02    bmAttributes    (Transfer: Bulk / Synch: None / Usage: Data)
0x0200    wMaxPacketSize   (512 Bytes)
0x00    bInterval
0x00    bRefresh
0x00    bSynchAddress
MS Bulk Data Endpoint Descriptor:
0x05    bLength
0x25    bDescriptorType
0x01    bDescriptorSubtype
0x01    bNumEmbMIDIJack
0x03    baAssocJackID(1)
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x04    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0xFE    bInterfaceClass   (Application Specific)
0x01    bInterfaceSubClass
0x01    bInterfaceProtocol
0x0F    iInterface   "Foo DFU"
Configuration Descriptor:
0x09    bLength
0x02    bDescriptorType
0x0169    wTotalLength
0x05    bNumInterfaces
0x01    bConfigurationValue
0x00    iConfiguration
0x80    bmAttributes   (Bus-powered Device)
0xFA    bMaxPower   (500 mA)
Interface Association Descriptor:
0x08    bLength
0x0B    bDescriptorType
0x00    bFirstInterface
0x04    bInterfaceCount
0x01    bFunctionClass   (Audio Device Class)
0x00    bFunctionSubClass
0x20    bFunctionProtocol
0x00    iFunction
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x00    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x01    bInterfaceSubClass   (Audio Control Interface)
0x20    bInterfaceProtocol
0x00    iInterface
AC Interface Header Descriptor:
0x09    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x0200    bcdADC
0x08    bCategory
0x0087    wTotalLength
0x00    bmControls
AC Clock Source Descriptor:
0x08    bLength
0x24    bDescriptorType
0x0A    bDescriptorSubtype
0x29    bClockID
0x03    bmAttributes
0x07    bmControls
0x00    bAssocTerminal
0x0E    iClockSource   "Foo Internal Clock"
AC Clock Selector Descriptor:
0x08    bLength
0x24    bDescriptorType
0x0B    bDescriptorSubtype
0x28    bClockID
0x01    bNrInPins
0x29    baCSourceID(1)
0x03    bmControls
0x0D    iClockSelector   "Foo Clock Selector"
AC Input Terminal Descriptor:
0x11    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x02    bTerminalID
0x0101    wTerminalType   (USB Streaming)
0x00    bAssocTerminal
0x28    bCSourceID
0x04    bNrChannels
0x00000000    bmChannelConfig
0x12    iChannelNames
0x00    bmControls
0x06    iTerminal   "Bar "
AC Feature Unit Descriptor:
0x1A    bLength
0x24    bDescriptorType
0x06    bDescriptorSubtype
0x0A    bUnitID
0x02    bSourceID
0x0000000F    bmaControls(0)
0x0000000F    bmaControls(1)
0x0000000F    bmaControls(2)
0x0000000F    bmaControls(3)
0x0000000F    bmaControls(4)
0x00    iFeature
AC Output Terminal Descriptor:
0x0C    bLength
0x24    bDescriptorType
0x03    bDescriptorSubtype
0x14    bTerminalID
0x0301    wTerminalType   (Speaker)
0x00    bAssocTerminal
0x0A    bSourceID
0x28    bCSourceID
0x0000    bmControls
0x00    iTerminal
AC Input Terminal Descriptor:
0x11    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bTerminalID
0x0201    wTerminalType   (Microphone)
0x00    bAssocTerminal
0x28    bCSourceID
0x04    bNrChannels
0x00000000    bmChannelConfig
0x16    iChannelNames
0x00    bmControls
0x00    iTerminal
AC Feature Unit Descriptor:
0x1A    bLength
0x24    bDescriptorType
0x06    bDescriptorSubtype
0x0B    bUnitID
0x01    bSourceID
0x0000000F    bmaControls(0)
0x0000000F    bmaControls(1)
0x0000000F    bmaControls(2)
0x0000000F    bmaControls(3)
0x0000000F    bmaControls(4)
0x00    iFeature
AC Output Terminal Descriptor:
0x0C    bLength
0x24    bDescriptorType
0x03    bDescriptorSubtype
0x16    bTerminalID
0x0101    wTerminalType   (USB Streaming)
0x00    bAssocTerminal
0x0B    bSourceID
0x28    bCSourceID
0x0000    bmControls
0x07    iTerminal   "Bar "
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x01    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x01    bInterfaceNumber
0x01    bAlternateSetting
0x02    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
AS Interface Descriptor:
0x10    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x02    bTerminalLink
0x00    bmControls
0x01    bFormatType
0x00000001    bmFormats
0x04    bNrChannels
0x00000000    bmChannelConfig
0x12    iChannelNames
AS Format Type 1 Descriptor:
0x06    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bFormatType
0x04    bSubslotSize
0x18    bBitResolution   (24 Bits/sample)
Endpoint Descriptor:
0x07    bLength
0x05    bDescriptorType
0x01    bEndpointAddress   (OUT Endpoint)
0x05    bmAttributes    (Transfer: Isochronous / Synch: Asynchronous / Usage: Data)
0x00D0    wMaxPacketSize   (208 Bytes)
0x01    bInterval
AS Isochronous Data Endpoint Descriptor:
0x08    bLength
0x25    bDescriptorType
0x01    bDescriptorSubtype
0x00    bmAttributes
0x00    bmControls
0x02    bLockDelayUnits   (Decoded PCM samples)
0x0008    wLockDelay
Endpoint Descriptor:
0x07    bLength
0x05    bDescriptorType
0x81    bEndpointAddress   (IN Endpoint)
0x11    bmAttributes    (Transfer: Isochronous / Synch: None / Usage: Feedback)
0x0004    wMaxPacketSize   (4 Bytes)
0x04    bInterval
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x02    bInterfaceNumber
0x00    bAlternateSetting
0x00    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
Interface Descriptor:
0x09    bLength
0x04    bDescriptorType
0x02    bInterfaceNumber
0x01    bAlternateSetting
0x01    bNumEndPoints
0x01    bInterfaceClass   (Audio Device Class)
0x02    bInterfaceSubClass   (Audio Streaming Interface)
0x20    bInterfaceProtocol
0x00    iInterface
AS Interface Descriptor:
0x10    bLength
0x24    bDescriptorType
0x01    bDescriptorSubtype
0x16    bTerminalLink
0x00    bmControls
0x01    bFormatType
0x00000001    bmFormats
0x04    bNrChannels
0x00000000    bmChannelConfig
0x16    iChannelNames
AS Format Type 1 Descriptor:
0x06    bLength
0x24    bDescriptorType
0x02    bDescriptorSubtype
0x01    bFormatType
0x04    bSubslotSize
0x18    bBitResolution   (24 Bits/sample)
Endpoint Descriptor:
0x07    bLength
0x05    bDescriptorType
0x82    bEndpoin

Hi,
I have same issue with my device, but what's strange is that it's correctly detected under Yosemite but not under 10.9.4,
It's always detected as Generic Midi device under 10.9.4
Do you find the reason ?
Thx

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.
However, on Windows 8, it is possible to set multiple Audio-Outputs and the Windows-Media-player has a setting to choose from them (under Options). I was unable to use the Registry-trick to switch the output-device and I could not find
a way to programmatically tell the AxWindowsMediaPlayer to choose the USB-soundcard as an output.
Is there a Way to programmatically(c#) ether change the audio-output-device(s) in Windos8 or to tell
AxWindowsMediaPlayer to use a certain device?
Thank you.

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

Lost input or output device for sound

In system preferance went to hardware clicked on sound to choose input and or output device and when booting Garage band error core device misiing..?

It it may be that you are running either an outdated BT software or the firmware of the card is not up to date.
What version is your BT software? Is it later than 1.5?
http://support.apple.com/kb/DL1209
Firmware:
http://support.apple.com/kb/DL354
Along with the firmware, it is likely that the headphones require a later BT revision than you are running. The headphones need rev.2.
You may need to move to Leopard for support.
http://support.apple.com/kb/DL889
It also may be that headphone support is limited to iChat or the like in Tiger.....
If you go to a USB BT dongle, D-Link often gets the nod as having native compatibility in OS X.

USB output devices and GarageBand 08

Similar Messages

Maybe you are looking for