Two simultaneous sound outputs by using external USB sound card

Hi
I have a MacBook Pro running Mac OS X 10.4.1
I've also bought a Griffin iMic as my second sound card.
Mac OS X shows my internal sound card as well as the external USB one and I can
easily switch between them. I was wondering if there is a way of using both at the same time, say, the internal speakers play song X and the headphone connected to iMic play sound Y.
Do I need a special software for this ?
Is iTunes capable of doing this ?
Any input is appreciated.
thanks
Ahoora

hi i just like to say i had a similar fault though i would be surprised if it causing yours,but you never know,my fault was my laptop lid, [9 months old] it contains the mic ,and when the lid was in a certain angle crackles could be heard worse when i had my external sound card in, it was a faulty membrane [ lid to body] easily missed by engineer because it was the same angle all the time it happened,good luck, PS you English is very good
Message was edited by: sido1

Similar Messages

External Usb Audio Card Popping and Cracking sound with Satellite L500

Greetings,
My name is Boyan and I am from Bulgaria and about an year ago I've bought a satellite laptop from the l500 series ( i can not state which exactly is the model at the moment because my computer is not currently with me and on my user manual the only thing which is stated is that it is for L500/L505/ L500D / L505D . But by memory I think it was the Satellite L500D-ST5506 which is currently not at my dispossal because I gave it for repair for the same problem which I will state down below)
The problem with my laptop is that when I plug a Usb Audio card in my laptop I have a cracking sound when live sound is played trough the speakers/headphones from the external card. I've tried numerous audio cards and speakers/headpohnes which work perfectly fine with other computer, including laptops but the same problem keeps on showing up in the headphones/speakers of my laptop when I am using an external audio card to connect them to the laptop.
The problem is prominent only when the sound signal passes trough an external audio card and it is very annyoing since I use my laptop to create music and i've bought an expenssive audio card and speakers which can not be used with the laptop. I've tried 3 models of audio cards:
M-Audio Fast Track Pro
Behringer uca 222
and a simple external 3d sound usb audio card and the problem still appears.
At first I thought that the problem should be software and I should install new drivers although windows 7 automaticaly recognizes and intalls the drivers for the devices and I have sound in them (but with cracks and popps) so i tried using the official drivers sold to me with the audio cards but with no luck: The problem was still there. I tried finding new drivers of the audio cards on the official distributors websited and i've downloaded them but the problem was still there. Then i tried to delete every audio driver on my computer and just use the external audio card for sound but this dint help eighter. I've updated my drivers for my build-in audio card as well but again - no luck.
After that.the frist thing I did when (2 weeks after i bought the laptop) was to contact the store from which i bought my audio card and they stated that the problem may be eighter latency or high voltage from the laptop so they adviced me to try to lower the latency from the settings or to try and see if the problem remains if my laptop is only running on battery. I've tried both things and they didn't help. The audio cards worked without a problem on every other computer I've tried them on except mine. So they said to me that the problem couldnt possibly be from the audio cards .
What I did next was I gave my laptop to the official distributor of toshiba in my country so they can fix my problem. What they said to me was that the problem is caused from the version of windows which was pre-installed on my laptop and that it wasnt compitable with the audio cards (which was bizzar sounding because I've tried them on the same windows and they've worked, just on other computers). So I got back my laptop and changed my operating sistem from Windows 7 Home Premium 64bit to Windows 7 Ultimate Edition 64bit to Windows 7 Ultimate Edition 32bit and on all of those versions the problem was there: whenever I activate a Usb Audio Card and audio signal passes trough it I heard cracks and popps. I even tried isntalling Windows XP but the laptop wants spesific SATA drivers for the installation of Windows XP which although i did find - they didnt help me install XP and I didn't want to go in to the BIOS of the computer to try to put a new one and so on because I am not so sure about that and I could lose my warranty so I said to the official repair store for Toshiba in my town to put XP on my computer to fix the problem but they can't because they are not liscened to operate with software which doesn't have a recipt for its purchase ( which i didnt because i bought my windows xp long ago and i've lost the recipt)
I gave it for repair for the second time telling them that the change of my operating system did not solve my problem and what they did was they changed the whole motherboard on my computer, stating that the build in realtek audio device on my computer is not good enough to support an usb audio card or it maybe broken and they have to change the whole motherboard because the build in card is glued to it, so they did that but my problem wasn't solved. They told me that although I am using and external usb audio card the signal still passes trough my internal one and I have to disable it so i tried disabling it trough the control panel but this did not solve the problem and i do not have an option from BIOS to disable my build-in audio card. Another thing which I thought maybe causing the problem is that the two audio cards aren't working on the same bit rate and Hertz so I set both cards to 16 bit 48000hz DVD Quality (Also tried other options on the 3 cards i have) but...the same thing happend.
They told me that this is just my luck and that the build in audio card doesn't support this external audio cards and I should had been more careful when choosing my laptop at first.
I couldn't accept this awnser for several reasons:
1) This audio cards work on lower version of windows and are supported by much older models of Realtek and much older computers (one of them was bought 2000!!!!! and my laptop is from 2010!!)
2) The guys who were fixing the problem apperantley didn't go in so deep in to my problem because they didn't know what actually the problem was they just knew that there is a problem with the audio card and the computer interacting with eachother, they didnt know that there is cracking during live play from the external audio card.
3) I can not accept the fact that Toshiba is manufacturing models with chipset audio cards which can not support a simple external Usb Audio Card. This is totally unacceptable for me and I truly hope this is not the case!
4)They didn't try my audiocards on an other laptop from the same series stating that they do not have one at their dispossal at the moment so I will go tomorrow to a local store and try the audio cards by my self on the same computer in the store.
What I did now was I gave back my laptop for repair asking for a statement of the problem in wrtting with all details of the problem so I can go to court or ask for a new laptop but I will be charged with some money because according to them there is no problem in the laptop and the problem is that my external audio cards arent compitable with the build in internal chipset audio card. If I give my laptop for repair and there is no hardware problem I will have to pay some money. I will do this but I am now mad, since this will not solve my problem and I am loosing time and money.
What I am asking here is, if you can not help me solve my problem and advice me what to do to fix it, please provide me the details of the chipset build in audiocard on my motherboard, so i can investigate if it is compitable with my external audio cards and contact the audio card dealers to ask them for their opinion. Or if you can tell me with what it is compitable with and with what not, it would be great. I personally think that this laptop should have no problems at all with running a simple external usb audio card but I am asking you, if you know something more about that.
If the problem is from the build in chipset then Toshiba is manufacturing (or at least selling) audiocards which aren't at a normal standart but sadly I cant do nothing about it except complain to Toshiba and never deal whith such productgs anymore. In the other case if this is not true, then my laptop has a problem which is different and I will have to go to court with the repair mans for not fixing my laptop or not giving a new one when I have warranty which will not be Toshiba's fault and It will in a way solve my problem.
I hope you understand how Important this is for me and I hope I resolve the problem as soon as possible.
P.S
I would like to state that I am well aware of the grammar mistakes I have made in the text below and I would like to ask for your apologies as I am not a native English language speaker.

hi i just like to say i had a similar fault though i would be surprised if it causing yours,but you never know,my fault was my laptop lid, [9 months old] it contains the mic ,and when the lid was in a certain angle crackles could be heard worse when i had my external sound card in, it was a faulty membrane [ lid to body] easily missed by engineer because it was the same angle all the time it happened,good luck, PS you English is very good
Message was edited by: sido1

System preferences -Sound does not see external USB speakers

The computer internal speakers are working OK but the problems come when I try to use external USB speakers. The previous volume problem of the imnternal speakers resolved itself.
I have now purchased a new USB set of speakers (BOSE Companion 20) but now they will only work through the "headphone" slot at the rear of my Imac and then only thru one speaker.(right)
I have reset the PRAM - anyway I followed all the instructions and it was not solved.
In "Sounds" in system preferences the Imac cannot see the USB speakers - it only recognises the internal speakers for output.
I think until "sounds" recognises the USB Speakers I will not get both speakers working.
I insert the USB speaker wiring pin in the Headphones slot at the back of the Imac and as mentioned sound only comes thru the right USB speaker -nothing works when I put the pin in the speakers slot alongside the Headphones slot.
Any help apprecaited

The computer internal speakers are working OK but the problems come when I try to use external USB speakers. The previous volume problem of the imnternal speakers resolved itself.
I have now purchased a new USB set of speakers (BOSE Companion 20) but now they will only work through the "headphone" slot at the rear of my Imac and then only thru one speaker.(right)
I have reset the PRAM - anyway I followed all the instructions and it was not solved.
In "Sounds" in system preferences the Imac cannot see the USB speakers - it only recognises the internal speakers for output.
I think until "sounds" recognises the USB Speakers I will not get both speakers working.
I insert the USB speaker wiring pin in the Headphones slot at the back of the Imac and as mentioned sound only comes thru the right USB speaker -nothing works when I put the pin in the speakers slot alongside the Headphones slot.
Any help apprecaited

External usb sound card is not working correctly

When my computer usb sound card is working correctly. If your computer to sleep and wake up the sound card is working correctly. If you disable the sound card and connect again, it appears extraneous sound on the background music playing. Each time the sound is different. The sound is very similar to not match the sampling frequency. If the computer is rebooted, then the sound card is working properly again.
Soundcard Infra-sonic.com model Amon.
I have not experienced problems when using the same card with Mac OS 10.5.8 with the drivers for Mac OS 10.5
Manufacturer issued driver for Snow Leopard, but the card still does not work correctly.
Also such problems, other users complain about an external USB audio card. None of the users can not find a solution to this problem.

Contact Infra-Sonic tech support.

External USB sound device with SPDIF In?

Hi all,
I would like to know if Creative has any external USB sound cards with a SPDIF interface that works with Windows 7. I have an Extigy, and as I know it, it will not work with anything newer than XP.
I need a USB card with SPDIF input to bridge my Astro b.yond 5. SPDIF audio to my 5. speaker kit. For various reasons I cannot change the existing sound card in the computer.
Please help.

I don't know that sound card or application software, but the usual reason for this is that somehow you have reverted to the Microsoft wdm drivers rather than the asio ones you need for multi channel use.
This sometimes happens with some usb interfaces if you have connected the interface originally before installing any drivers. Removing any drivers associated with usb audio and then re-installing them might be worth a try.

Notebook hangs if there's an app actively using external USB disk

...right before going into sleep mode.
I have this notebook and an external USB SATA drive hooked up to it. When I put the laptop into sleep mode, then resume its work, after a while I'll get a blank screen that essentially looks a lot like tty1, all black background and gray symbols all over the screen. Essentially, the message I get is the following:
Dec 7 11:29:18 localhost kernel: [67351.155834] ESI: f6447e80 EDI: f46b05f0 EBP: f15a7e58 ESP: f15a7e40
Dec 7 11:29:18 localhost kernel: [67351.155834] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Dec 7 11:29:18 localhost kernel: [67351.155834] Process transmission-gt (pid: 2302, ti=f15a6000 task=f1255a40 task.ti=f15a6000)
Dec 7 11:29:18 localhost kernel: [67351.155834] Stack:
Dec 7 11:29:18 localhost kernel: [67351.155834] f15a7eac f46b05e0 f6447e80 f1255a40 f6447e80 f46b05f0 f15a7e6c c10d4f48
Dec 7 11:29:18 localhost kernel: [67351.155834] 00000010 f6447e80 f46b05e0 f15a7e84 c113be2c 00000000 efa3b930 ef1f4400
Dec 7 11:29:18 localhost kernel: [67351.155834] 00000000 f15a7e90 c113befa f1141600 f15a7eb4 f8046f1e f1141600 f804b3e4
Dec 7 11:29:18 localhost kernel: [67351.155834] Call Trace:
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c10d4f48>] account_page_dirtied+0x68/0x90
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113be2c>] __set_page_dirty+0x3c/0xb0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113befa>] mark_buffer_dirty+0x5a/0x90
Dec 7 11:29:18 localhost kernel: [67351.155834] [<f8046f1e>] ext2_sync_super+0x6e/0xd0 [ext2]
Dec 7 11:29:18 localhost kernel: [67351.155834] [<f8046fd1>] ext2_sync_fs+0x51/0x60 [ext2]
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1157640>] ? dquot_get_dqblk+0x180/0x180
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113a4ca>] __sync_filesystem+0x5a/0x80
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c113a539>] sync_filesystem+0x29/0x50
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c111656e>] generic_shutdown_super+0x2e/0xe0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1116649>] kill_block_super+0x29/0x70
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c111693d>] deactivate_locked_super+0x3d/0x60
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c11171f7>] deactivate_super+0x47/0x60
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c112ecd7>] mntput_no_expire+0x87/0xd0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c112ed38>] mntput+0x18/0x30
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1116154>] fput+0x134/0x1e0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1112d14>] filp_close+0x54/0x80
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1112db4>] sys_close+0x74/0xc0
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c134c11f>] sysenter_do_call+0x12/0x28
Dec 7 11:29:18 localhost kernel: [67351.155834] [<c1340000>] ? setup_local_APIC+0x2c9/0x3b8
Dec 7 11:29:18 localhost kernel: [67351.155834] Code: eb ce 8d 76 00 8d bc 27 00 00 00 00 55 89 e5 83 ec 18 89 5d f4 89 c3 89 e0 25 00 e0 ff ff 89 75 f8 89 7d fc 83 40 14 01 8b 43 14
Dec 7 11:29:18 localhost [67351.155834] 8b 30 89 f7 c1 ff 1f 01 d6 89 45 f0 8b 45 08 11 cf 89 c2 c1
Dec 7 11:29:18 localhost kernel: [67351.155834] EIP: [<c11cf02f>] __percpu_counter_add+0x1f/0xe0 SS:ESP 0068:f15a7e40
Dec 7 11:29:18 localhost kernel: [67351.155834] CR2: 00000000342da000
Dec 7 11:29:18 localhost kernel: [67351.155834] ---[ end trace a7afafe94ef537f4 ]---
Dec 7 11:29:18 localhost kernel: [67351.182781] note: transmission-gt[2302] exited with preempt_count 2
By playing around I learned that if I kill transmission and any app that actively uses the USB disk prior to the sleep mode, and then start them after resume is finished and the disk is mounted (I use GNOME 3 in fallback mode, so it automounts the disk) everything works fine.
Now, I could ignore those messages but it gets worse. Mostly laptop will hang at a random point in time after printing that wall of text on tty1. It might take hours, or even days before this happens. Sometimes I'll find transmission in a freezed state and I may survive a couple of sleep and resume cycles but I almost never will go as far as 4 days and more in a row. The laptop will hang eventually. And the only way to avoid this is to kill off apps that use external USB drive prior to going into sleep mode.
Any ideas what's going on and how to fix this?
% uname -a
Linux host 2.6.39-ARCH #1 SMP PREEMPT Tue Jun 7 05:49:02 UTC 2011 i686 Intel(R) Core(TM) Duo CPU T2250 @ 1.73GHz GenuineIntel GNU/Linux

karol wrote:https://bbs.archlinux.org/viewtopic.php?id=131527
Thanks, however, my problem isn't speed, it's stability of the system.

Is Creative Sound Blaster Audigy 2 NX USB sound card compatible with Dell deskt

Im considering buying the Creative Sound Blaster Audigy 2 NX USB sound card to use with a Dell desktop XPS 40, but recently read a forum message on another page that there was a issue with installing on a Dell Tower but no problems with installing on a laptop
any help is appreciated if there are any compatibility issues with using this sound card on a Dell desktop, Thanks
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joaolfb,
Audigy 2 NX will need to be connected with the power adaptor inorder to run. USB will not be enough to sustain the power consumption of the sound card.
Jason

Why is my external USB audio card not found after Lion install

Above says it all. Since installing Lion my external USB audio card is not recognized. This is a very plain vanilla card. I worked fine with Snow Leopard. No additional drivers required. But with Lion, nada. Any help would be greatly appreciated.

It just happened to me. Exactly as Ritcho described. After install fine, after restart, gone. FYI for anyone with the same issue as I had. I was using a Diamond USB dongle to connect my external monitor to the iMac, it was legacy from when I was running a couple of external monitors from my MacBook Pro using them. I took the dongle out of the chain and replaced with a standard Apple DVI to Mini DVI adapter and plugged it into the mini dvi port in the iMac and I was golden. Now to sell the Diamond dongles.

External USB Sound Card and 6-channel 5.1 SS speakers not working

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If anyone has any suggestions I would appreciate the help.

I'm almost certain it is because of the lack of a mac driver for this particular sound card. <gasp> This setup works great under XP when using BootCamp. If I'm dead in the water with sound card, are there reliable alternatives I look for?
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[SOLVED] Kernel panic when using external USB hard drive

I have a desktop PC with a 64 bit arch install, on a Core2 Duo 6320 CPU. I have been using (and continue using right now) a 500 GB "Iomega Desktop Hard Drive" external USB hard disk without problems. But I have just bought a 3 TB "Seagate Expansion" external USB hard drive and I'm unable to use it from my Arch install. Each time I try to format it or to copy data from the PC, Arch freezes with a kernel panic. Sometimes it freezes faster and I cannot see anything, but others I am able to see the following kernel messages, repeating several times:
[11701.205071] sd 3:0:0:0: [sdf] uas_eh_abort_handler ffff880014e13380 tag 29, inflight: CMD
[11701.221297] sd 3:0:0:0: [sdf] abort completed
[11701.221313] scsi host3: uas_eh_task_mgmt: ABORT TASK failed (wrong tag 0/256)
[11701.221323] sd 3:0:0:0: [sdf] uas_eh_abort_handler ffff880014e13500 tag 30, inflight: CMD
[11701.237550] sd 3:0:0:0: [sdf] abort completed
[11701.237567] scsi host3: uas_eh_task_mgmt: ABORT TASK failed (wrong tag 0/256)
[11701.237576] sd 3:0:0:0: [sdf] uas_eh_abort_handler ffff880014e13680 tag 31, inflight: CMD
[11701.253922] sd 3:0:0:0: [sdf] abort completed
[11701.253936] scsi host3: uas_eh_task_mgmt: ABORT TASK failed (wrong tag 0/256)
[11701.253956] sd 3:0:0:0: uas_eh_device_reset_handler
[11704.252182] scsi host3: uas_eh_task_mgmt: LOGICAL UNIT RESET timed out
[11704.252196] scsi host3: uas_eh_bus_reset_handler start
[11704.252443] usb 5-6: stat urb: killed, stream 0
[11704.358882] usb 5-6: reset high-speed USB device number 3 using ehci-pci
[11704.483206] scsi host3: uas_eh_bus_reset_handler success
Strange enough, the drive is listed by lsusb command as a 2TB but I don't think this is related to the problem (as the OS sees the 3 TB). This is the lsusb output:
Bus 001 Device 003: ID 0bc2:3312 Seagate RSS LLC SRD00F2 [Expansion Desktop Drive 2TB]
I have tried the drive on other PCs and it works flawlessly. Also tried booting Windows 8 on the same PC I have Arch installed in, and in Windows it also works perfect. I have tried using ext2 and NTFS filesystems. Tried also changing the USB cable without success. And right now I'm out of ideas. Any suggestions?
Last edited by doragasu (2014-07-03 11:06:25)

looks like it could be the UAS module , check https://bbs.archlinux.org/viewtopic.php?id=183190

Transfering iTunes files to new computer using external USB hard drive

Thought this could be useful:
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3) Create two new folders in your external hard drive (you can name them LIBRARY Backup and PLAYLISTS Backup).
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5) Open another Windows Explorer or My PC window; open the iTunes Music folder (usually located in C:\Documents and Settings\Owner\My documents\My music\iTunes).
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7) Close both the LIBRARY Backup folder from your USB external hard drive and the iTunes Music folder.
8) Open the PLAYLISTS Backup folder from your USB external hard drive
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10) Close all the windows and extract your USB external hard drive from your PC ()
11) Install iTunes in your new computer.
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14) Open the LIBRARY Backup folder and copy all of its contents (only the contents, not the whole folder) to the iTunes Music folder in your new computer. After the copying is complete, close this folder.
15) Copy the PLAYLISTS Backup folder to you new computer’s desktop.
16) Close Windows Explorer and extract USB hard drive.
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PC Windows XP Owner of 5th Generation iPod

Type "move itunes library" into the Google search bar.
Type "ipod touch not recognized by itunes" into the search bar at the top of this page by "Support"

N86: charging using external usb battery

Hi all,
I was wondering if anyone found a solution for charging the N86 using an external USB battery. I have two such batteries and my N86 refuses to charge from either of them. One of them works flawlessly with the iPhone so I know it's supplying at least 1000mA.
I was wondering if we need a special USB cable other than the one supplied by Nokia.
Any pointers would be appreciated.

USB charging is a lower voltage charge but I think you should still unplug the player after it's been fully charged. While tranferring tracks or organizing the music it won't really make a difference. I know that a couple nights ago I charged a player over night (Meaning it was plugged in for like 5 hours with a full charge) and the battery's charge seemed to drain a little more quickly. I know this is highly anecdotal but just some thoughts.
I don't see the need to rate the music on the player (most of my music is ripped straight from CD so it's all pretty good) and for what most people use a Mass Storage Device for personal files or maybe a few movies and 2 gigs is more than enough.

2 Apple TV's and no sound output when using AirPlay/mirroring?

Hi,
Bought my first apple tv and when air mirroring was able to go to my system preferences and choose sound output for it and it worked beautifully when I wanted to play a movie on my computer and send it to the TV. Bought a second apple tv for the bedroom, both are connected over wifi. Using Mountain Lion on my iMac. Now it won't play any sound on either and will not let me choose which apple tv in system preferences - sound. Any help would be appreciated
Sue
I have tried turning Apple TV on first, then choosing sound output before turning on air mirroring. Problem is it won't let me choose, stays on internal speakers.
This fix won't work for me.

Might I recommend the following sample code instead?
[http://www.jsresources.org/examples/MidiNote.html]

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How to set correct audio output while using external screen for presentation purposes over a wire

while trying to make a presentation or simply playing a video from my MacBookAir over thunderbolt/HDMI table to large screen I am experiencing problems with audio only being played from the MBA and not the soundsystem built in to that screen (unless using a VLS application and manually selecting the audio output target).
Please help in finding how to steer audio output device using 2in1 cable such as thunderbolt?

Hi jar9,
If you are not hearing audio over your HDMI/Thunderbolt connection, you may want to see if it is showing up as a selectable audio output as outlined in the following article:
OS X Mavericks: If you can’t hear sound from your speakers
http://support.apple.com/kb/PH13841
Regards,
- Brenden

Two simultaneous sound outputs by using external USB sound card

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