Noise when recording - Macbook - sound card problem?

Hi, I'm recording with Garageband on my Macbook, and everything sounds fine through the monitors, but once I start recording, it picks up this cyclical, scattered hiss (very hard to describe, kind of like a hiss rolling it's R's). It's not any of my plugged-in equipment, because it records this noise even when it is recording "nothing", with no mics or anything plugged in. It's very apparent on quiet tracks, not so much on busier compositions, but it makes doing any real instrument recording untenable. Is this a fault in the sound card? Is the program recording a vibration from the processor? The hard drive? I am flummoxed. Would a USB or Firewire audio device suffer from the same issue? Help!

I used to have this problem too. Try this: Just record like 10 seconds of seomthing, anything... even silence, with the macbook plugged to it's power source(ac-adapter) then do the same thing... but unplug it from its power source so that is is running solely on battery power. My prediction is that you will hear a significant difference. Turns out, the buzz of the computer charging, while very very very very slight, will be picked up. (if you dont notice this diference, then I am full of crap and cant help you)
So here's what you do: Get an interface that plugs into usb or firwire. I use the iMic. Very simple and works great.

Similar Messages

Audigy 2 sound card problems

I am hoping that someone out there can help me in a crucial situation.
I am using an Audigy 2 sound card with creative 5. speakers.
I also use Adobe Audition to edit, record sessions for my voice-over jobs.
Recently, I attempted to hook up a web cam so that I could see my grand daughter on the west coast.
After hooking up the web cam, I noticed my home studio environment changed drastically. I began having trouble with recording using my microphone through my Macki mixer. I began hearing a continuous hiss that I had never experienced before.
In fact after uninstalling the web cam, and restarting my computer, I got that horrible blue screen on my computer indicating the world was about to end! Smile
Long story short, I was able to finally get my computer back up, but I continue to experience problems recording "clean' audio".
Three things, after reinstalling Creative from disc several times and restarting my computer I receive a window stating Creative Media Source Detector.....Unable to load needed components....Please reinstall the application"
Also, when trying to test my sound hardware I get a message stating...Direct play voice setup..."an error occurred during direct play voice setup....error code 0x80004005
Last but not least I cannot access the "Creative diagnostic feature on my computer. I only get a small window for this feature that will not open up fully and allow me to run a diagnostic test!
I know this is a lot to absorb, but I cannot get anyone from Creative to address my problems because I am out of warranty and therefore not getting any love from this company.
Need your advice and or guidance on this.
Please respond when time allows.
Vopro

Re: Audigy 2 sound card problems? use add/remove programs and remove all creative software and drivers, then do the same for your web cam and unplug it
restart your pc
download and install [url="http://downloads.guru3d.com/Guru3D---Driver-Sweeper-%28Setup%29-download-655.html" rel="nofollow">driver sweeper[/url] and use it to clean up any left over creative bits and bobs and restart your pc when it asks you to
now download and install the [url="http://support.creative.com/Products/product_list.aspx?catID=&CatName=Sound+Blaster" rel="nofollow">latest audigy drivers[/url]
once your back in to windows try recording something and see if everything's back to normal
now reinstalling your web cam but don't reinstall using the cd that came with it
find the manufacturer's website and get the latest drivers
install cd's best avoided simply because the software and drivers they contain are typically the initial release versions, and so potentially very old
and i think we can all agree that old, buggy drivers can be a real pain

Logic Pro X and Eleven Rack Sound Card Problem. Intermittent? MacBook Pro Yosemite. Anyone having this issue too?

Ok,
Avid Eleven Rack Audio Interface with latest firmware into usb MacBook Pro running 10.10.3 (latest Yosemite)
Logic X and the sound card do not see the Eleven Rack all the time. *Intermittently*, but more often than not, I can't select the eleven rack as my interface either in Logic X Preferences>Audio>Devices or System Preferences>sound pref as the eleven rack does not show up in either list to be able to even select it.
Real pain when you are writing and have a flow of ideas and need to get a recording down. Anyone else having this issue? I have tried both usb ports in the macbook pro and the same results.
Of course I unplug and replug the usb cable. Still nothing. I have to quit Logic Pro X and restart to even get a chance for the eleven to even show up in either list.
Once I can select it then I also have a problem with being able to record (it records and gets input not prob) but on playback their is no output (with correct output selected) so I then have to use a Logic X template where the output is set exactly the same as what I am trying currently but for some reason it works with the template on the same exact settings. Mighty pain. Any help would be greatly appreciated. I am going to try my Eleven on another computer to see what happens too but thought I would ask here.
Thanks
ejh

First make sure you are using the latest drivers...
http://avid.force.com/pkb/articles/en_US/Download/Eleven-Rack-Drivers
However the latest ones are not yet confirmed as working to OS X 10.10.3 so you may need to wait for an update from Avid....
Test and see....
Note: It's always a good idea not to update OS X or Logic Pro until after you have checked if there are working drivers for your external hardware first.. especially, in my personal opinion... in the case of Avid hardware drivers which are know to lag behind in development..

Mid-2009 13" MacBook Pro emits high-frequency noise when engaged for sound

Recently I noticed that when the MacBook Pro activates the sound output device for built-in speakers, a high-pitched whine or noise begins, and does not stop until the card deactivates again.
The sound is not proportional to brightness, hard drive activity, CPU load, or anything else I've been able to try, except for sound output. When I plug in headphones it cuts out when the sound transfers to the headphones (it's on the same slight delay that the sound change is on). This MBP leads a relatively tame life, although it does travel sometimes. I can't figure out what would have started this sound, but I noticed it start within the last month, and I have confirmed that others hear it in the same quiet environment as I hear it in.

Give it two or three more weeks to get below 80% and stay there, then take it to an Apple Store for testing. As long as it's still above 80%, it's going to be considered "within spec," so make sure it's below 80% when you take it in.

HP Pavilion dv7-1130us IDT HD sound card problem: recording levels too high

I have been trying to get the IDT HD sound card in my HP Pavilion dv7-1130us laptop to allow me to switch from "microphone" to "Line In" input signal. I cannot find an option anywhere in the laptop do this. There is not a separate Line-In jack on the laptop. The mike jack is it.
The reason I'm trying to change the input setting is that I am using Audacity/Lame (the Win 7-compatible Beta version) to convert old cassettes to MP3. My laptop came with Vista but I upgraded to Windows 7 Professional (64-bit) earlier this year.
The problem is that recording levels are way too high using the mike input and so the recording comes out harsh and distorted. I have tried all possible recording level adjustments on the tape deck (no option), IDT sound card control panel, Windows device manager, etc.
From what I am reading on the online Audacity forums, using a mike input will cause the recording levels to be too high, and the setting has to be changed to "Line In" and not "microphone." Is there not a way to do that with this laptop and sound card?
The HP Support Assistant tells me that the driver for my sound card is up-to-date.
Thanks in advance for any help or suggestions. I've been trying to find a solution on my own for a couple days with no luck.

Hi Amanda,
Try the following.
Download the IDT Audio installer on the link below and save it to your Downloads folder.
http://ftp.hp.com/pub/softpaq/sp52501-53000/sp52658.exe
When done, open windows Control Panel, open Device Manager and open up Sound, Video and Game Controllers. Right click the IDT device and select Uninstall - you should also get a prompt to remove the current driver, tick the box to allow this and then proceed with the uninstall.
When complete, shut down the notebook, unplug the AC Adapter and then remove the battery. Hold down the Power button for 30 seconds. Re-insert the battery and plug in the AC Adapter.
Tap away at the esc key as you start the notebook to launch the Start-up Menu and then select f10 to enter the bios menu. Press f5 to load the defaults ( this is sometimes f9, but the menu at the bottom will show the correct key ), use the arrow keys to select 'Yes' and hit enter. Press f10 to save the setting and again use the arrow keys to select 'Yes' and hit enter.
Let Windows fully load - it will automatically load an audio driver, but just let this complete. Then open your Downloads folder, right click on the IDT installer and select 'Run as Administrator' to start the installation. When this has completed, right click the speaker icon in the Taskbar and select Playback Devices. Left click 'Speakers and Headphones' once to highlight it and then click the Set Default button - check if you now have audio.
Regards,
DP-K
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

Sound Card Problem in Macbook Pro

I recently bought a 15" Macbook Pro with Retina Display form Apple Store in Singapore. I am kind of clueless as to why the Sound Card goes undetected in few occasions after a reboot. It is running Yosemite OS X 10.10.2, with Intel i7 Quad-Core 2.2Ghz Processor, 16Gig Memory, 256Gig Flash Storage.
Any help would be much appreciated to prevent this little annoyance of Sound Card "disappearing" when I boot into OS X. Thanks.

System Preferences/Universal Access/Hearing.
Uncheck “Play stereo audio as mono”

Sound Card Problem, or Driver Problem? Games crash, when they didn't befo

Not sure what the problem is, but seems to be a sound problem of some sort. I have just re-installed Vista 64. And now when I try to play BF242, the game crashes before I even see any kind of gameplay. It also instantly crashes when I click on the audio options tab. I have installed the latest drivers from the site. I have even uninstalled them, and launched the game without any drivers, and the game runs perfectly fine, but only without sound.
But I've been able to play BF242 before, but it would evenutally crash after a while, but at least I was able to get into the game. So knowing that Ive been able to play before, and it played without any drivers, I dug up some drivers that I know I had working at one point when the game was playing. And it still crashes before it gets into the game.
So this makes me wonder, is this really a driver problem or a soundcard problem?
All sounds are perfectly fine elsware, music, movies, OS tones, web, etc. Crysis runs perfectly fine. Company of Heros Crashes, Quake Wars crashed about 0 mins into a game. Team Fortress 2 runs perfectly fine. Battlefield 2 instantly crashes.
Here's my specs:
Vista 64 Ultimate
Asus P5W DH Deluxe
Asus nVidia 8800 GTX
4gig Corsair XMS2 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel
Powersupply Antec True Power Trio TP3-550 550W ATX2V Power Supply with Three 2V Rails
Sound Blaster x-fi fatality (whatever the one that comes with the front computer interface)
Any help would be great. I'd hate to go buy a new sound card just to try it, unless I had a pretty good idea that it was the issue.

I think I found the problem. It was the physical card itself. I pulled my old Audialogy card out of my old machine, and swapped it. Now BF242 runs.
And mine never went to a black screen, and had to hard reset. It just dumped right to the desktop with a message "bf242.exe has stopped working."

High Pitched Noise When Recording From iSight Camera

I apologize if this has been asked before. I did a search on here as well as with Google.
Whenever I record a video clip using the built in iSight camera I notice that there is a constant high-pitched noise embedded in the clip. You don't hear the noise during recording, and otherwise the audio is crystal clear during playback, but I can't seem to figure out what is causing this noise. Video clips I import into iMovie don't have this problem. Has anyone else experienced this problem? How can I prevent this from happening with future recordings?

Hello obsidianspider
I am sorry to report that you are one of about ten people who have posted here about audio noises during video recordings with MacBooks. I listened to your YouTube clip, and I believe you are hearing something. I can hear the muffled "thumping" of background noises being amplified because there is no voice or other close sound being recorded in your video, but my old ears do not hear anything high pitched in your video (or anywhere else for that matter.)
I am sure Apple is aware of the issue, but with so small a number reporting this issue among thousands of MacBooks sold, I understand why there is not yet a kBase technical article on this subject.
I expect that Apple searches its warranty & repair work for quality issues and trends, but, if you have not (and do not) contact Apple or your retailer for service on this issue, please report your problem via MacBook Feedback so Apple can accurately record the magnitude of this problem. Unlike posting in this user forum, "Feedback" reports go directly to Apple.
We users who post here have found no solution yet, so the problem appears to require professional service for resolution.
However, if you are willing to try a test, please post back and tell us whether video or movie clip recording applications other than Apple's give the same audio noise you hear when using iSight with iMovie. Apple's QuickTime Pro has already been tested and found to exhibit the problem.
If you have access to an external microphone that can be located away from your Mac while you record video, you could also test to see whether you are recording a physical sound coming from your Mac or electronic noise being produced within your Mac's circuitry.
If you want to read the suggestions we have offered for minimizing your audio noise in video recordings, take a look at the suggestions offered in Eemma's thread, which was the first to report this problem. The suggestions for minimizing noise start here:
http://discussions.apple.com/thread.jspa?messageID=4483866&#4483866
If you want to read what other users who experience this (or similar noise) problem, you can find them in these two threads:
http://discussions.apple.com/thread.jspa?threadID=972540
http://discussions.apple.com/thread.jspa?threadID=1136286
If you or any other reader finds a solution, please share it.
EZ Jim
PowerBook 1.67 GHz w/Mac OS X (10.4.10) G5 DP 1.8 w/Mac OS X (10.5) External iSight

Crackling noise when recording

I am using an IMAC and the Steinberg CI2 interface to record and I am getting a crackling sound when recording. Does anyone know what this might be?
Thanks

i have a similar problem with a yamaha mw12cx usb mixer and a macbook pro. i set the audio preferences to the specifications in the owners manual 44.1 khz on the input and 48 khz on the output and the crackling noise immediately went away. this worked for about 15 minutes of recording a narration but when the crackling started again, i couldn't set the output at 48 khz, it would change right back to 44.1khz. am i going to have to break the recordings up into 10 minute pieces?

Sound card problem: static/crackling and no sound

I've had a late 2010 Macbook Air for over 3 years (February 2011). About a week or two ago I started hearing a strange popping noise every now and then while I was using headphones. I thought it was a problem with the headphones but then discovered the same thing when I used different external speakers. Almost simultaneously the internal speakers started periodically having no sound at all, even though it wasn't on mute. This was previously fixed by restarting the computer, but now the problem is permanent. The popping noise when using headphones has also rapidly worsened, and now crackles constantly and sometimes there is even very loud white noise. This occurs with any program on my computer - web browsers, spotify, itunes etc. As it's over three years old, I no longer have AppleCare. I'm not too keen on taking it into the Genius Bar unless I have some idea of how much it will cost beforehand, as I also need to replace my battery soon, which is going to be 129 euros. Does anyone know how to fix this problem, and if not, how much does it usually cost to replace the sound card? I'm using Mavericks but the problem started some time after I installed it.
After doing some googling to try to fix it I've tried:
- Turning it off and on again
- Installing AntiPop
- PRAM reset
- SMC reset
- Disabling and reinstalling Adobe on google chrome
- Resetting the sound card with terminal

Thanks Linc Davis. I thought I'd have to pay for the consultation at the Genius Bar, but you're quite right, it is free and you can decide not to go ahead if the quote they give is too much. Just thought I'd write what happened in case anyone else has the same problem. The cause was basically a small cable that needed to be repaired, which cost about 76 euros. I took it to an Apple Store in Paris and they fixed it within 24 hours, even though they estimated 3-5 days. He said another reason this problem might be occurring is because the Logic Board needs to be replaced which would have cost around 360 euros (probably not worth the money for a 3.5 year old laptop), but thankfully it was just the cable.

Mysterious noise when booting MacBook (White)

A friend of mine has one of the white plastic Apple MacBooks. It's having an issue where it sounds like either a fan or something is rubbing or the audio card/speakers are sounding a weird sound like it has some sort of glitch happening.
I can't fully tell where exactly the sound is coming from but it's fairly audible and something you can tell is NOT a normal function of this setup. I have recorded the sound for you to hear. Anyone know what this issue may be? I have seen other threads and youtube videos of Apple Laptop noises but none sound like this one. Any help?
here is the audio clip: http://rapidshare.com/files/446956467/DansComputerSound.mp3

Did they exchange yours? I'm having the same problem...
Plus:
I just got the Pro, so checked for updates, let them download click to restart, and... the grey installer progress-bar screen before shut-down suddenly quits and the machine shuts down abruptly.
Then it tries to re-start itself, but makes a loud (deep) beep noise, and the white sleep light blinks fast a number of times. It then loses power.
Same thing happens every time I try to start it up. After I leave it for a few minutes, I'm able to start it up. Then I check for the updates, the same two (firmware and Thunderbolt) appear... seems they weren't installed. I try again, same problem. I read around, it might be the RAM, or it might be the HDD, or who knows what...

Superdrive making clicking noise when my Macbook Pro is lifted

Hello all,
I recently had my New 13.3 in. Macbook Pro displayed replaced and now when I lift the Macbook, the superdrive makes a clicking noise similar to the sound when a dvd-rom can't read a disc. There is no dvd in the drive during this time. I was wondering if anyone else is experiencing this problem with their Macbook Pro.
I have another question, when I received my macbook with the replaced display, the display had several patches of dirt and an line scratch underneath the screen. Will apple replace the screen for me again or is it possible to have the entire macbook replaced? This is very frustrating to have to send in my brand new macbook for repairs twice in one month...
Thank you advance for your help.
David

DO NOT DOUBLE POST!
I posted this link in your first question as well.
http://discussions.apple.com/thread.jspa?threadID=2069071&tstart=0

[SOLVED] USB sound card problems and audio setup

I want to clarify and correctly set up my ThinkPad T61 sound system finally.
I'm running Arch64 + KDE.
There are two sound cards - the internal HDA Intel and external USB CM118.
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Set [C-Media USB Headphone Set], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
First of all, why are there both analog and digital subdevices?
I just need playback and/or recording support for these applications: opera, firefox, skype, clementine, mplayer, vmplayer. As high quality as possible.
Per-application sound control would be nice but if that adds too much clutter, I could live without it. No need for audio streaming or any other luxuries.
All the applications should use the USB card whenever it's plugged in. The internal SC should take over when CM118 is unplugged.
The problem is that most of the time it doesn't work. For example, if I plug out the USB card and then run some application like Clementine or Firefox there would be no sound ("connection refused" in Clementine).
Here is my asound.conf:
defaults.pcm.card 0
defaults.pcm.device 0
defaults.ctl.card 0
Also kMix/amix should switch the master channel from HDA Intel Master to C-Media Master automatically. The only way to do this is to write some kind of script, right?
AFAIK the following audio components are installed: ALSA, OSS (for some unknown reason), Phonon, Gstreamer.
I guess I can uninstall OSS without worries as no one seems to need it (checked with "whoneeds").
What about that Phonon? Would it override the asoud.conf if I set default device there? Why there are so many different devices in the Phonon configuration list:
C-Media USB Headphone Set, USB Audio (Default Audio Device)
C-Media USB Headphone Set (USB Audio)
C-Media USB Headphone Set, USB Audio (IECblablabla)
hw:1,0
hw:1,1
default
Intel Analog
Intel Digital
blablalba
And that C-Media triplet for every USB port the CM118 has been plugged in.
Too much confusion! All that mess for just two different cards.
So what is the proper way of setting primary and secondary sound cards in this situation?
Thank you!
Last edited by andrisll (2012-07-19 08:48:28)

I am sorry for my very late response and the lack of structure in my post.
I did some investigation and found a rather acceptable workaround for one of my problems described below.
Here is the basic functionality I need:
1. Automatic (on the fly) switching to the external sound card when it's plugged in and automatic fallback to the integrated SC when usb is unplugged.
2. Automatic (on the fly) switching of the kMix's master channel according to the changes mentioned above.
As for the first problem, I found this udev rule:
KERNEL=="pcmC[D0-9cp]*", ACTION=="add", PROGRAM="/bin/sh -c 'K=%k; K=$${K#pcmC}; K=$${K%%D*}; echo defaults.ctl.card $$K > /etc/asound.conf; echo defaults.pcm.card $$K >>/etc/asound.conf"
KERNEL=="pcmC[D0-9cp]*", ACTION=="remove", PROGRAM="/bin/sh -c 'echo defaults.ctl.card 0 > /etc/asound.conf; echo defaults.pcm.card 0 >>/etc/asound.conf'"
This solution has some disadvantages but it is acceptible. If you know of any better solution, please tell me.
For the second problem, I found this script which uses qdbus org.kde.kmix /Mixers org.kde.KMix.MixSet.setCurrentMaster method to set the master channel. However, I think that constant monitoring for the usb SC being plugged is not very effective. So I thought appending the following code to the second line of the previous udev rule would do the work:
, RUN+="/usr/bin/qdbus org.kde.kmix /Mixers org.kde.KMix.MixSet.setCurrentMaster "ALSA::C-Media_USB_Headphone_Set:1" "Speaker:0""
But that results in some weird behaviour: master channel stays the same but there would be three new tabs in the kMix window now: USB Set", USB Set# and USB Set$.
Here's what log messages tell us:
07/14/12 12:25:13 PM localhost kernel [10889.749048] usb 3-1: new full-speed USB device number 13 using uhci_hcd
07/14/12 12:25:14 PM localhost kernel [10889.914921] input: C-Media USB Headphone Set as /devices/pci0000:00/0000:00:1a.1/usb3/3-1/3-1:1.3/input/input21
07/14/12 12:25:14 PM localhost kernel [10889.915454] generic-usb 0003:0D8C:000C.000C: input,hidraw0: USB HID v1.00 Device [C-Media USB Headphone Set ] on usb-0000:00:1a.1-1/input3
07/14/12 12:25:14 PM localhost mtp-probe checking bus 3, device 13: "/sys/devices/pci0000:00/0000:00:1a.1/usb3/3-1"
07/14/12 12:25:14 PM localhost mtp-probe checking bus 3, device 13: "/sys/devices/pci0000:00/0000:00:1a.1/usb3/3-1"
07/14/12 12:25:14 PM localhost mtp-probe checking bus 3, device 13: "/sys/devices/pci0000:00/0000:00:1a.1/usb3/3-1"
07/14/12 12:25:14 PM localhost mtp-probe checking bus 3, device 13: "/sys/devices/pci0000:00/0000:00:1a.1/usb3/3-1"
07/14/12 12:25:14 PM localhost mtp-probe bus: 3, device: 13 was not an MTP device
07/14/12 12:25:14 PM localhost mtp-probe bus: 3, device: 13 was not an MTP device
07/14/12 12:25:14 PM localhost mtp-probe bus: 3, device: 13 was not an MTP device
07/14/12 12:25:14 PM localhost mtp-probe bus: 3, device: 13 was not an MTP device
You see, the probe thing is running multiple times!
And here is an excerpt from udev debugger:
starting '/usr/bin/qdbus org.kde.kmix /Mixers org.kde.KMix.MixSet.setCurrentMaster '
'/usr/bin/qdbus org.kde.kmix /Mixers org.kde.KMix.MixSet.setCurrentMaster '(err) 'Could not connect to D-Bus server: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11'
'/usr/bin/qdbus org.kde.kmix /Mixers org.kde.KMix.MixSet.setCurrentMaster ' [2769] exit with return code 1
'/usr/bin/qdbus org.kde.kmix /Mixers org.kde.KMix.MixSet.setCurrentMaster '(err) 'Could not connect to D-Bus server: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11'
Some kind of X11 problem... And also happening twice! Why?
Running the setCurrentMaster method in terminal works very nicely, so the problem must be the way udev runs it.
One last thing - sometimes the usb SC automatically reconnects (disconnects and connects). I read somewhere that most probably the usb device makes the trouble, but maybe there are other possiblities?
Last edited by andrisll (2012-07-14 10:04:16)

External Sound Card Problems

I've been enjoying my HP dv7-1025nr for the past few months with no problems. I recently decided to get into home audio recording and purchased an M-audio profire 2626 external sound card which connects through firewire. I've yet to get any sound from my computer through the device. I have downloaded and installed all the latest drivers several times (both for the profire and every other device on my computer). I've also updated the flash bios for my hp (which i'm still trying to figure out why there's no "advanced" tab in the menu...other users have resolved irq issues this way and it's not even an option for me). I have reinstalled my OS (several times). The M-audio tech support suggested purchasing a dedicated firewire card with a TI chipset to solve previous connectivity issues, so I got a Siig 2-port ExpressCard. My current problem is that even with the profire set as my default playback device, there seems to be a problem where windows is unable to send it any sounds. If I try to use itunes or windows media player, the timer won't even start when i press play. Everything works perfectly when i change the windows default playback device to anything else (laptop speakers, spdif out or nvidia hdmi out). I'm confident that everything on the profire's end is working correctly and there must be some form of harware or software conflict (windows services or otherwise). Device manager doesn't show and irq conflicts but i'm wondering if there could still be one. Windows is recognizing the device and the m-audio control utility is working. The profire also works perfectly through my other computer (a gateway laptop running xp). I have spent 2 weeks trouble shooting this problem and have come to the conclusion it cannot be fixed through normal trobleshooting means. I need a programmer to help me out with this one. Please help.

model external sound kard is e-mu 0404. it is unkhnown for may hp laptab

MIDI - problems with output sound / sound card problem?

Hi. Not sure if this is the right place to put this question, but anyway:
I bought the notation program Sibelius 4, which allows you to write notation and play it back with MIDI. With it comes a software program (Kontakt Silver) that you can use to playback the MIDI.
So, in choosing playback devices, I can choose between Kontakt Silver and "DLS Music Device", which was on the Mac from before, I'm guessing it's the sound card that comes with the PowerBook G4.
The problem is that playback is a bit out of sync, and in addition it produces a strange "screeching" sound that's not supposed to be there. It sounds as if the sound produced is echoed and filtered. This is very annoying and makes Sibelius useless for me.
The problem is the same if I choose to use Kontakt Silver as the playback device as if i choose DLS Music Device.
I have 15 GB free space on the harddisk and between 150-300 MB free RAM when using Sibelius (the memory is 1 GB DDR SDRAM). A 1.67 GHz G4 processor. So I don't think my computer is the problem.
All other sound is good on the Mac, I can play mp3s, wavs and aifs without problem. Sibelius is the only program I have that can play MIDI-files (I think).
So what might be the problem? Is there a driver I can download, is my soundcard broken? I need help. Thanks.

Korg Legacy and the XV are not critical to my workflow, just items I had invested on I would like to keep. I did not research compatibility with Snow Leopard vwery thoroughly for those two, but I certainly did with the interface, which IS critical. Focusrite has released brand-new drivers that are supposed to be compatible with Snow Leopard, as they loudly trumpet on their web site.
And by and large, they do work - there's just that incessant noise. And THAT's an issue, and somehow I doubt it has to do with the interface as, like I mentioned, the noise only appears during the bootup sequence when, I assume, the Firewire drivers are loaded.
Inputs?

Noise when recording - Macbook - sound card problem?

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