Audio input setup with a USB audio interface

When i plug my USB audio interface into the USB port, GB gives me a message that it has been detected, and it shows up in the audio input preferences.
But it doesn't seem to be listening. Signals light up on the interface when i speak into the mike, but not on my GB.
I also switched to the device I'm using in my Mac input sound preferences.
Hints, anyone?

Nothing - it's a new project. Thought maybe I ought to get the input device working before starting.

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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

Any perfect audio hardware setup with the new Macbook Pro?

I'm still not sure if to go for the new Macbook Pro 2.8 ghz, or the 6 months earlier 2.5 ghz model (march 2008).
I love to go for the new Macbook Pro, but I'm not sure about my setup. Now I have:
- extern 7200 rpm bus powered LaCie firewire 800 hard drive
- Saffire with firewire 400 (thinking about moving to Apogee Duet)
Will the express card really help? I've read that if you connect a firewire 400 device to the express card, the firewire 800 won't work at 800 speed, but at 400? Also that a bus powered hard drive doesn't work, and that it needs it's own power to run with the express card?
Bottom line:
What would be the perfect audio hardware setup with the new Macbook Pro? I gladly invest in a different audio interface (or anything else) if it really fits and works as pro audio setup!

I've read that if you connect a firewire 400 device to the express card, the firewire 800 won't work at 800 speed, but at 400?
I don't think this is right. As I understand it, the advantage of having one of your devices on an express card slot is specifically so it is on its own bus.
Then both devices will operate on their own speed.
However, this is true for the older model Macbook Pros when you use both FW ports that are built in, because even though the machine has two ports, they each feed one firewire bus. So if you have a device plugged into each port, the one plugged into the 800 will only run at 400 speed because they're both on the same bus. Using an express card means both devices can operate at their own speed.
If you want the newer machine I think you should get it. Then you can buy a firewire 400 express card, plug your interface into that, and plug your FW 800 drive into the main firewire port. This will give you better performance from your peripherals than an older machine with both devices plugged into the built in FW ports.
Good Luck!

All audio input dead -- internal mic, USB mic

Hey folks, for some reason my iMac G5 suddenly will not recognize any sources of audio input.
In the Sound pref pane, the "internal microphone" option under the Input tab is not even there anymore. Only line-in.
In addition, when I check input levels with an external (USB) mic, I get zilch. Otherwise, the USB on this machine works fine, and furthermore this same mic works without a hitch on a G4 Powerbook.
Since this is happening on two very different hardware channels, it must be a software issue.
I've tried resetting the system's audio by restarting, running Garage Band, running Audacity, anything I could think of. Nothing works.
As to what could have triggered this change, three events happened recently around the same time involving audio on this machine: iTunes 10.0.1 update; Rogue Amoeba SoundSource update from 2.0 to 2.5; and a PRAM reset when I recently had all audio output also die. (The PRAM reset fixed the output issue.)
Any ideas?

Just to follow up, this thread was resolved here:
http://discussions.apple.com/thread.jspa?messageID=12433876#12433876

Does MacBook Air A1370 provide us with a USB audio signal?

I am a user of an 11-inch MacBook Air A1370 with OS X 1.7.5. To my mac, I want to connect my USB audio device, GoVibe XVert that converts USB audio signal to S/PDIF signal either of coaxial or light. The "radio" in The iTune on my mac shows me the BBC 3 station. What I want to do is to apply the BBC digital music signal direct to my pure digital power amplifier by connecting the converter to the amplifier. But I failed. No sound from the speakers at all even the very converter works for a Windows 7 PC.
Is my usage wrong while Mac outputs a USB audio signal? Or, the Macs of my type provide no USB audio signal as its specification?
Please help me.

The problem was solved. Just select a device for sound output from "Internal Speakers" to "Ti USB audio" that is the converter.

After sleep, audio turned on when using USB-Audio!

It seems that after the EFI update, the external USB Audio device is also on after standby and not muted as before!
I have a C-Media USB Headphone set (this means external speakers over an USB), normally muted.
After sleep it is unmuted and at full volume. (When i let it with low volume, after standby it is also at full, but the bars are displaying it as low).
Anyone same experience?

UPDATE:
I decided to try going through an Firewire Audio Interface instead. Keyboard-(MIDI)->MOTU Traveler-(Firewire)->MacBook Pro.
Same corruption/hiccups/choppy playback.

Audio Input Problems with Alesis MultiMix 8 USB Mixer

I have hooked up an Alesis MultiMix 8 USB mixer and condensor Microphone to my new iMac G5's USB port. When going into the Sound Control Panel my input slider for Audio in is grayed out and states that their are no input devices, (I chose the USB input device instead of internal mic.), yet it does pic up the sound from the mixer and mic. Also, I change my preferences in Garageband to use the USB mixer and Mic, but my Track Editor "wave forms at the bottom af Garageband are barely visible, no matter how loud I set the input volume. I used to have very large wave forms in the track editor when using my Logitech USB mic. The sound is fine when played back but it is a real pain when trying to edit in Garageband when I can barely see the wave forms in the track editor. I have tried this set up on my Powerbook also, with the same results. Can someone please help me with the settings using this mixer so I have GOOD usable wave forms in Garageband. Thanks -Swomper

gozo41 wrote:
i get the message: Can't enable track for recording; Track is in use.
Any suggestions?
as iSteveus said, you'll only be able to record 2 tracks at most. skim this tute for the solution to your error:
http://www.bulletsandbones.com/GB/Tutorials.html#bsqrecordmultipletracks
and this one for a little more on recording 2 tracks:
http://www.bulletsandbones.com/GB/Tutorials.html#bsqrecordmultipletracks

Only one channel of audio recorded with external USB audio interface on DV6604nr

I only get on channel of audio when i hookup my Behringer UCA202 to my dv6604nr
vista 32 sp2 . The Behringer takes analog 2 channel audio and converts it to a digital signal.
This is using the Audacity software. The hardware and software check fine, though i tested them with an xp system.
Are there trouble shooting tips for these issues. I've updated the Audacity software and the usb drivers say their up to date. (?)

Come on... It's just like a usb turntable, only a little better quality. What steps would you use to troubleshoot one of those?

No audio input to Garageband from USB mixer

I have a macbook duo core running 10.6.8 and a Behringer X1622 usb mixer. I get no input signal no matter what I do. Ant ideas?

you seem to have set the computer up properly which appears to point to the mixing console as the issue.
are you familiar with mixing consoles? i don't have an x1622 to play with to point out specifics, but things like attenuation have to be up along with the volume fader, any Sends, if the console has them, must be set right...
best bet is to check the owner's manual to make sure you have it actually sending a signal to the computer

Using USB on MacBook Pro for audio input

I have a turntable that outputs audio via USB for conversion from LPs to digital sound on my MacBook. It comes with Audacity software for control of the process. When I use my daughter's 5 year old Gateway I am presented, within Audacity, with a drop down of audio input choices - including the USB ports. When I try to use my MacBook the only option for audio input is the Microphone jack.
I'm pretty sure that I should be able to use the USB port for audio input but am unsure how to make it happen. I'm comfortable using GarageBand if the Audacity software is the problem.
Can anyone help me with this?

The previous answer is CRAP, your turntable already provides you digital audio over USB.
You just have to select USB Audio as the default audio input.
Under OSX this is not done inside Audacity, as is done under Windows. It must be done on the System Preferences, Audio.
There you will be able to select the USB interface as your default sound input.
After this, launch Audacity, and there you will see that the USB audio is now the only available option...

How to connect Digital Optical Audio output iMac with Receiver Input

I have connected iMac with onkyo hts-3300 home theater system receiver through optical audio TosLink Cable.( http://www.amazon.com/Digital-Optical-Audio-TosLink-Cable/dp/B001ZU3G2I/ref=sr12?ie=UTF8&qid=1292865309&sr=8-2 ). Unfortunately there is no sound coming out from the Home theater system. I have verified the Receiver optical input is working fine by connecting with my TV optical audio digital out put and the it's working great. The only difference between TV and iMac is, on my TV, it has optical audio digital output and I can use this cable (http://www.amazon.com/Tripp-Lite-A102-02M-Digital-connectors/dp/B0002WPREU/ref=s r11?s=electronics&ie=UTF8&qid=1297320792&sr=1-1) to make it work. I can also verified my optical audio TosLink Cable working because I can see the red light coming out from the cable. So the only problem could be from iMac. I doubt I need to change the additional setting to configure iMac to use external optical audio setting instead of the buit in audio setting. Hoe can I able to do it? or my iMac(IMAC 21.5"/3.06/2X2GB/500GB/9400M-ITP
MB950ZP/A) doesn't support optical digital audio out put? I have follow this thread http://discussions.apple.com/thread.jspa?messageID=12769423&#12769423 and to my surprise which doesn't work out for me. I doubt that i need to change some setting, but when I got to setting>> sound I cannot change any setting. I was quite depressed aldy. Can someone answer my question as i m a newbie here. Thanks a lot

Thank you very much for your reply.
@Király : May i know how to Open Audio Midi Setup? Is this Audio Midi Setup is in the locatated in the Setting in Mac Snow Leapord OS? or how to locate this "Audio Midi Setup " in Mac enviroment. Is it possible to open this Audio Midi Setup in windows 7 enviroment also? I Just want to get the audio from my iMac in Hts-3300 onkyo home theatre. YOur help is much appreciated
@rkaufmann87 : Thank you very much for your sharing about this http://www.apple.com/airportexpress/ connection. for me what i understand is the digital audio output in airportexpress is the same as the audio out put in iMac in terms of details sepcs. So this airportexpress will only help you connect wirelessly to home theatre system, rather than waired connection. Other than that nothig much difference. So there is no point for me to spend extra bucks to attain the wireless connection. Unless the airportexpress have optical digital input, which i believe not. Correct me if I m worng, thanks

Distorted recording with QuickTime 7 using USB Audio CODEC

I am running Mac OS X Tiger 10.4.8 with all the latest update from Software Update which includes QuickTime 7.1.3.
I am using QuickTime Broadcaster to stream back to itself (loopback) and record to disk at the same time. The input audio device is set to USB Audio CODEC (the default driver that comes with Mac OS X Tiger, and I am using an Alesis MultiMix 16USB mixer on a PowerMac Dual Core G5). I am using MPEG-4 Audio compression (no Video) of 16-bit, 44.1kHz and 128kbps (stereo).
The problem is that sometimes I get recordings (ranging from 1.5 hours to 2.75hours long) with distortion. Here is a short 20-second audio clip with distortion-free audio for about 6 seconds and then distortion sets in:
http://www.netmedia.com.sg/files/SampleDistortion20s.mov
Whether it overlays on top of the original audio or replaces it, I cannot tell, but the transition is instant and smooth with no audible clicks or pops. The distortion can come in and go randomly. For example, I had one recording with distortion coming in at about 2 minutes plus and it remained until about 2hr10min when the distortion went away. Sometimes it didn't go away; other times it came in about an hour later. I also had once where the distortion last only for about 6 minutes somewhere in the middle of a 2.25 hours recording...all in all, it occurs at random. And I do get distortion-free recordings.
This problem also occurs on an iMac G5 with a Alesis MultiMix 12USB mixer, and in another Vara Software's Videocue PRO software which uses QuickTime for recording and playback. QuickTime 7.0.x and all versions of 7.1 also had this problem.
Because of this problem, I may need to use a convoluted method to stream and record to disk via QuickTime. By the way, I also tried streaming to another local subnet IP address just as a troubleshooting without success.

I too am having distortion problem (Sorry no solution here).
Using OS 10.4.8, QT7.1.3, & Adobe Premiere 6.5 on a G4.
After I down loaded QT 7.1.3, my problems started. Is this when your problems started too?
Audio is in "slow motion" sound when editing. On rare occations, it sounds correct for 10 sec or so but sync is out and eventually reverts to "slow motion" sound. Even more bazar, when viewing a clip in a thumbnail preview, it works fine. So I know the orginal is good.
My contention is QT is causing this. All I want is my previous version of QT back. I think this might fix your problem too. Unfortunately, there is no reinstall that I can find that takes QT 7.1.3 off and puts QT 7.1.1or2. The reinstall QT 7.0.3 which is on the Apple website will not restall.
Looking for a reintall that will take QT 7.1.3 off, help anyone?

Bad noise from USB audio input

Using Roland UA-30 USB audio input device with ibook 1.2ghz with Logic Pro 7.
Getting nasty noise. Any other ways of getting audio into my ibook without the fuzz and buzz ?

ok first of all to help your ibook 1.2ghz's power, upgrade your rams, atleast 1.5GB, safer side will be 2.5GB
2) get the pro app if you haven't done so
http://www.apple.com/support/downloads/proapplicationsupport30macosx1039.html
3) I was gonna say get the latest update for the UA-30 but it comes with OSX
4) try not to set you buffer size too high, try around 128-256 or better 512
5) make sure your cables are good/pro cables
6) record using other applications to see if its logic or just the card itself
stash

Distorted recording with QuickTime using USB Audio CODEC

I am running Mac OS X Tiger 10.4.6 with all the latest update from Software Update which includes QuickTime 7.1.1.
I am using QuickTime Broadcaster to stream back to itself (loopback) and record to disk at the same time. The input audio device is set to USB Audio CODEC (the default driver that comes with Mac OS X Tiger, and I am using an Alesis MultiMix 16USB mixer on a PowerMac Dual Core G5). I am using MPEG-4 Audio compression (no Video) of 16-bit, 44.1kHz and 128kbps (stereo).
The problem is that I usually get recordings (ranging from 1.5 hours to 2.75hours long) with distortion. The distortion sounds like audio going through Logic Pro's BitCrusher plug-in, that is, audio recorded with less than 8-bit resolution but kept at 44.1kHz sample rate. Whether it overlays on top of the original audio or replaces it, I cannot tell, but the transition is instant and smooth with no audible clicks or pops. The distortion can come in and go randomly. For example, I had one recording with distortion coming in at about 2 minutes plus and it remained until about 2hr10min when the distortion went away. Sometimes it didn't go away; other times it came in about an hour later. I also had once where the distortion last only for about 6 minutes somewhere in the middle of a 2.25 hours recording...all in all, it occurs at random. And I do on rare occasions had distortion-free recordings.
This problem also occurs on an iMac G5 with a Alesis MultiMix 12USB mixer, and in another Vara Software's Videocue PRO software which uses QuickTime for recording and playback. QuickTime 7.0.x and 7.1 also had this problem.
Because of this problem, I may need to use a convoluted method to stream and record to disk via QuickTime. By the way, I also tried streaming to another local subnet IP address just as a troubleshooting without success.

I too am having distortion problem (Sorry no solution here).
Using OS 10.4.8, QT7.1.3, & Adobe Premiere 6.5 on a G4.
After I down loaded QT 7.1.3, my problems started. Is this when your problems started too?
Audio is in "slow motion" sound when editing. On rare occations, it sounds correct for 10 sec or so but sync is out and eventually reverts to "slow motion" sound. Even more bazar, when viewing a clip in a thumbnail preview, it works fine. So I know the orginal is good.
My contention is QT is causing this. All I want is my previous version of QT back. I think this might fix your problem too. Unfortunately, there is no reinstall that I can find that takes QT 7.1.3 off and puts QT 7.1.1or2. The reinstall QT 7.0.3 which is on the Apple website will not restall.
Looking for a reintall that will take QT 7.1.3 off, help anyone?

SM-58/audio input problem

Hi. I don't know if this is the right forum, but it's worth a shot. I am at my wit's end.
I have an SM-58 vocal mic, which I used to use through my macbook with a Blue Icicle interface. I then purchased a Line 6 UX1 guitar interface, with PodFarm software, which I then linked to GarageBand. At first I had no problem recording in GarageBand using my SM-58 routed through the UX1. At some point, however, the computer stopped receiving a signal from the mic.
At this point, I no longer receive any input signal from my mic, whether I'm in GarageBand, PodFarm, or simply in the system preferences>sound input window. And the thing, is I know the mic is fine - it works fine through analog gear. I know all the other equipment is fine, too, since it works with my guitar. So what happened to my mic sound? Why does the computer no longer pick anything up? If anyone can help, I would be extremely grateful... I'm lost.

But when I plug the output of the Radio Shack controller into the audio input of the iMac, it captures only one end (my end) of the conversation.
Where did you previously connect that output, when it works properly?
Is it coming over only on the left or right channel?
You may be able to control the audio input more precisely using the +Audio Midi Setup+ utility (in the Utilities folder).

Audio input setup with a USB audio interface

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