USB Microphone cut's out

This is the second USB microphone I bought (a Blue USB Microphone) to go with my iMage USB camera.
Everthing works great except for when the sound on the mic stops working, having to unplug and re plug in the USB connection to have the mic start working again.
Seems to be software related since this happened on 2 different mics, anyone else have any trouble like this?
Thanks, JohnnyB

Hi johnnywashere,
DOes the Mic show up in System Preferences > Sound > Input tab ?
Is the volume set high enough (to get a response at least 1/2 way with iChat ?
In iChat > Preferences > Video section > Microphone Drop down is the same Mic selected ?
In iChat > Video menu (may read Audio) does the Microphone Enabled item have a Tick ?
In iChat > View Menu is Show Audio Status ticked ?
(err..... Is it turned on. Mine has an On/Off switch)
4:19 PM Sunday; April 1, 2007

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USB Microphone cuts out all sound

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Thanks,
Michael

I do not have your exact computer model or sound driver, but I can tell you what I did that fixed my microphone issues almost instantly for my G780!
My microphone also cut out during voip calls (such as Skype, G+ hangouts, etc) but my audio when using any type of recording software was fine!
So apparently for my laptop, there was a bit of additional software that was installed called Smart Audio which is also by Coaxant.
If you have this program, this is probably what is causing all the sporadic quality changes.
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USB Microphone fades out with RealPresense

We use Polycom RealPresense for desktop video conferencing. If the microphone gain is set to a high level (usually needed) and it hears a loud noise the microphone gain is reduced (looking in control panel>sound>recording>microphone>levels).
The gain then does not recover when the background noise has reduced. Eventually the gain drops to 29% where it stays.
This only happens with USB microphones and several have been tried. The drivers have been updated to the latest. It behaves the same with older versions of the application as well as the latest. It happens with Windows 7, both X86 and X64 versions.
We have not tried other versions of Windows, as these would be irrelevant.
It also happens with other communication software, but not if only Windows is running.
Has anyone else met with and resolved this problem?
If this is the wrong forum to post this question I would be grateful if a moderator could move it and then let me know.

Its something not related to Windows then. May be application or drivers ?
Arnav Sharma | http://arnavsharma.net/ Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading
the thread.

Fails to recognize USB microphone

Just yesterday I was able to use my Logitech USB microphone in the Voice Over mode. I could select it from the pull down menu within the Voice Over window and very easily record scratch narration. Today? Nada. It's not available as a choice in Voice Over. It's like the computer doesn't even see it. I have rebooted the computer and restarted Final Cut, all to no avail. I even plugged the device into the USB port in the back of the computer. Nothing works. Any idea on how I can get this mic to show up again in Voice Over so I can use it?
Thanks,
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Okay, problem solved. First, thanks so much to everyone who responded to this cunundrum. I think the culprit was downloading software updates yesterday. Because, I just now downloaded another small batch of software updates. As soon as I rebooted after the download installations, I looked in the System Preference Control Panels under Audio. And behold! The computer recognized the USB mic device. When I opened my Final Cut project, the Voice Over window gave me the mic as a input device. It works now just fine. So, that software download stuff can cut both ways. It could be that I needed to download yesterdays batch before I had access to today's batch. But, just availing myself of yesterday's batch appears to have rendered the device unrecognizeable. the latetest update appears to have solved the problem. In any event, thanks again to everyone for trying to bail me out. Hopefully, my problem and this response can help someone else with a similar problem in the future.
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Blue Yeti USB microphone not working in ALSA/PulseAudio

Hi all,
I recently bought a Blue Yeti USB microphone. It is supposed to require no drivers for Windows and OS X, and so far, it works well under Windows, but I cannot seem to get it to function on Arch Linux. As fair warning, although I am relatively experienced with Linux, I don't know much about the internals of ALSA/PA --- up until now, it has just "always worked", so this is my first real foray into the area. I've tried for many days, with no success, to get this thing working.
So, let's start off first with my configuration.
I have a few audio devices:
An on-board audio solution that I don't typically use. For testing, I have connected an old, crappy pair of headphones, but normally I keep this disabled. It has one capture device. (Analog stereo [or 5.1/7.1/etc] duplex)
An external DAC that is connected via USB and is output-only. So, no capture devices on that. (Digital/IEC958 output)
The Blue Yeti itself, which is connected via USB and supports output (it has an internal DAC) as well as input. So, one capture device here. (Digital stereo output and analog stereo input???)
The HDMI-out stuff for nvidia, which I never use
Here is the output of "arecord -l":
**** List of CAPTURE Hardware Devices ****
card 1: Microphone [Yeti Stereo Microphone], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 2: ALC892 Alt Analog [ALC892 Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Here is the the output of "arecord -L":
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Default ALSA Output (currently PulseAudio Sound Server)
sysdefault:CARD=Microphone
Yeti Stereo Microphone, USB Audio
Default Audio Device
front:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
Front speakers
surround40:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
4.0 Surround output to Front and Rear speakers
surround41:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Microphone,DEV=0
Yeti Stereo Microphone, USB Audio
IEC958 (S/PDIF) Digital Audio Output
sysdefault:CARD=PCH
HDA Intel PCH, ALC892 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC892 Analog
Front speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC892 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC892 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC892 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC892 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC892 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
Here is the output of "aplay -l" (for completeness):
**** List of PLAYBACK Hardware Devices ****
card 0: Audio [USB2.0 High-Speed True HD Audio], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Microphone [Yeti Stereo Microphone], device 0: USB Audio [USB Audio]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 0: ALC892 Analog [ALC892 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 2: PCH [HDA Intel PCH], device 1: ALC892 Digital [ALC892 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 3: NVidia [HDA NVidia], device 9: HDMI 3 [HDMI 3]
Subdevices: 1/1
Subdevice #0: subdevice #0
If the output of "aplay -L" is needed, let me know, but it's not all that different from arecord -L.
Here is my /etc/asound.conf:
defaults.pcm.rate_converter "samplerate_best"
pcm.!default {
type pulse
fallback "sysdefault"
hint {
show on
description "Default ALSA Output (currently PulseAudio Sound Server)"
ctl.!default {
type pulse
fallback "sysdefault"
# vim:set ft=alsaconf:
I don't remember where the bulk of that came from; maybe it was installed like that or maybe I put it in there. Here is another useful command showing non-commented-out/non-blank lines in the pulseaudio conf:
$ egrep -v '^;|^#|^$' /etc/pulse/*.conf
/etc/pulse/client.conf:autospawn=no
/etc/pulse/daemon.conf:exit-idle-time=0
/etc/pulse/daemon.conf:default-sample-rate = 192000
So, there's not much I've done there. Here's the contents of /proc/asound/cards:
0 [Audio ]: USB-Audio - USB2.0 High-Speed True HD Audio
CMEDIA USB2.0 High-Speed True HD Audio at usb-0000:00:1d.0-1.7, high speed
1 [Microphone ]: USB-Audio - Yeti Stereo Microphone
Blue Microphones Yeti Stereo Microphone at usb-0000:00:1d.0-1.8, full speed
2 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7530000 irq 52
3 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xf7080000 irq 17
And here's the contents of /proc/asound/modules:
0 snd_usb_audio
1 snd_usb_audio
2 snd_hda_intel
3 snd_hda_intel
Now, here is the output of "pactl list sources" (the Blue Yeti is last in the list):
Source #3
State: RUNNING
Name: alsa_input.pci-0000_00_1b.0.analog-stereo
Description: Built-in Audio Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 192000Hz
Channel Map: front-left,front-right
Owner Module: 7
Mute: yes
Volume: front-left: 17972 / 27% / -33.71 dB, front-right: 17972 / 27% / -33.71 dB
balance 0.00
Base Volume: 6554 / 10% / -60.00 dB
Monitor of Sink: n/a
Latency: 610 usec, configured 100000 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "ALC892 Analog"
alsa.id = "ALC892 Analog"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "2"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf7530000 irq 52"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card2"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1e20"
device.product.name = "7 Series/C210 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "front:2"
device.buffering.buffer_size = "76800"
device.buffering.fragment_size = "19200"
device.access_mode = "mmap"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Built-in Audio Analog Stereo"
alsa.mixer_name = "Realtek ALC892"
alsa.components = "HDA:10ec0892,10438436,00100302"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
Ports:
analog-input-front-mic: Front Microphone (priority: 8500, not available)
analog-input-rear-mic: Rear Microphone (priority: 8200, available)
analog-input-linein: Line In (priority: 8100, not available)
Active Port: analog-input-rear-mic
Formats:
pcm
Source #11
State: RUNNING
Name: alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
Description: Monitor of Built-in Audio Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 192000Hz
Channel Map: front-left,front-right
Owner Module: 7
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor of Sink: alsa_output.pci-0000_00_1b.0.analog-stereo
Latency: 0 usec, configured 100000 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of Built-in Audio Analog Stereo"
device.class = "monitor"
alsa.card = "2"
alsa.card_name = "HDA Intel PCH"
alsa.long_card_name = "HDA Intel PCH at 0xf7530000 irq 52"
alsa.driver_name = "snd_hda_intel"
device.bus_path = "pci-0000:00:1b.0"
sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card2"
device.bus = "pci"
device.vendor.id = "8086"
device.vendor.name = "Intel Corporation"
device.product.id = "1e20"
device.product.name = "7 Series/C210 Series Chipset Family High Definition Audio Controller"
device.form_factor = "internal"
device.string = "2"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-pci"
Formats:
pcm
Source #15
State: RUNNING
Name: alsa_output.usb-CMEDIA_USB2.0_High-Speed_True_HD_Audio-00-Audio.iec958-stereo.monitor
Description: Monitor of USB2.0 High-Speed True HD Audio Digital Stereo (IEC958)
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 192000Hz
Channel Map: front-left,front-right
Owner Module: 8
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor of Sink: alsa_output.usb-CMEDIA_USB2.0_High-Speed_True_HD_Audio-00-Audio.iec958-stereo
Latency: 0 usec, configured 100000 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of USB2.0 High-Speed True HD Audio Digital Stereo (IEC958)"
device.class = "monitor"
alsa.card = "0"
alsa.card_name = "USB2.0 High-Speed True HD Audio"
alsa.long_card_name = "CMEDIA USB2.0 High-Speed True HD Audio at usb-0000:00:1d.0-1.7, high speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1d.0-usb-0:1.7:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1.7/6-1.7:1.0/sound/card0"
udev.id = "usb-CMEDIA_USB2.0_High-Speed_True_HD_Audio-00-Audio"
device.bus = "usb"
device.vendor.id = "0d8c"
device.vendor.name = "C-Media Electronics, Inc."
device.product.id = "0319"
device.product.name = "USB2.0 High-Speed True HD Audio"
device.serial = "CMEDIA_USB2.0_High-Speed_True_HD_Audio"
device.string = "0"
module-udev-detect.discovered = "1"
device.icon_name = "audio-card-usb"
Formats:
pcm
Source #19
State: RUNNING
Name: alsa_output.usb-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00-Microphone.iec958-stereo.monitor
Description: Monitor of Integrated Rate Matching Hub Digital Stereo (IEC958)
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 48000Hz
Channel Map: front-left,front-right
Owner Module: 9
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 65536 / 100% / 0.00 dB
Monitor of Sink: alsa_output.usb-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00-Microphone.iec958-stereo
Latency: 0 usec, configured 100000 usec
Flags: DECIBEL_VOLUME LATENCY
Properties:
device.description = "Monitor of Integrated Rate Matching Hub Digital Stereo (IEC958)"
device.class = "monitor"
alsa.card = "1"
alsa.card_name = "Yeti Stereo Microphone"
alsa.long_card_name = "Blue Microphones Yeti Stereo Microphone at usb-0000:00:1d.0-1.8, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1d.0-usb-0:1.8:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1.8/6-1.8:1.0/sound/card1"
udev.id = "usb-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00-Microphone"
device.bus = "usb"
device.vendor.id = "b58e"
device.vendor.name = "Intel Corp."
device.product.id = "9e84"
device.product.name = "Integrated Rate Matching Hub"
device.serial = "Blue_Microphones_Yeti_Stereo_Microphone_REV8"
device.form_factor = "microphone"
device.string = "1"
module-udev-detect.discovered = "1"
device.icon_name = "audio-input-microphone-usb"
Formats:
pcm
Source #23
State: RUNNING
Name: alsa_input.usb-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00-Microphone.analog-stereo
Description: Integrated Rate Matching Hub Analog Stereo
Driver: module-alsa-card.c
Sample Specification: s16le 2ch 48000Hz
Channel Map: front-left,front-right
Owner Module: 9
Mute: no
Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB
balance 0.00
Base Volume: 17775 / 27% / -34.00 dB
Monitor of Sink: n/a
Latency: 949811526 usec, configured 100000 usec
Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY
Properties:
alsa.resolution_bits = "16"
device.api = "alsa"
device.class = "sound"
alsa.class = "generic"
alsa.subclass = "generic-mix"
alsa.name = "USB Audio"
alsa.id = "USB Audio"
alsa.subdevice = "0"
alsa.subdevice_name = "subdevice #0"
alsa.device = "0"
alsa.card = "1"
alsa.card_name = "Yeti Stereo Microphone"
alsa.long_card_name = "Blue Microphones Yeti Stereo Microphone at usb-0000:00:1d.0-1.8, full speed"
alsa.driver_name = "snd_usb_audio"
device.bus_path = "pci-0000:00:1d.0-usb-0:1.8:1.0"
sysfs.path = "/devices/pci0000:00/0000:00:1d.0/usb6/6-1/6-1.8/6-1.8:1.0/sound/card1"
udev.id = "usb-Blue_Microphones_Yeti_Stereo_Microphone_REV8-00-Microphone"
device.bus = "usb"
device.vendor.id = "b58e"
device.vendor.name = "Intel Corp."
device.product.id = "9e84"
device.product.name = "Integrated Rate Matching Hub"
device.serial = "Blue_Microphones_Yeti_Stereo_Microphone_REV8"
device.form_factor = "microphone"
device.string = "front:1"
device.buffering.buffer_size = "19200"
device.buffering.fragment_size = "4800"
device.access_mode = "mmap"
device.profile.name = "analog-stereo"
device.profile.description = "Analog Stereo"
device.description = "Integrated Rate Matching Hub Analog Stereo"
alsa.mixer_name = "USB Mixer"
alsa.components = "USBb58e:9e84"
module-udev-detect.discovered = "1"
device.icon_name = "audio-input-microphone-usb"
Ports:
analog-input-mic: Microphone (priority: 8700)
Active Port: analog-input-mic
Formats:
pcm
Honestly, I think that's about all of the configuration info I can give. Here are some screenshots of pavucontrol, though, in case you are not yet sated: http://imgur.com/a/ngyLl
Now, on to the debugging stuff. First: everything except Blue Yeti recording works. The external DAC works, the on-board audio (both input and output) work, using the DAC in the Blue Yeti to play music/monitor the microphone works (so it works as an output). The only thing that doesn't work is actual recording from the Blue Yeti itself.
When I try to record from the Blue Yeti with parecord -v, I get very strange behavior. Essentially, the "latency" of the microphone measured is exactly the same as the time it has been recording. That is, if it has been recording for 5 sec, then the latency is 5000000 usec. Also, if I try to record something in Audacity, I get no result except for a message box that says "Latency Correction has caused the recorded audio to be hidden before zero. Audacity has brought it back to start at zero." Also, pavucontrol doesn't show an input volume bar for the Blue Yeti, as in the above screenshots, whereas it normally will for microphones that are getting input. The Yeti is not muted, either, so it should be picking up ambient fan noise and such.
Does anyone have any ideas? Is there some configuration error I've made? Typically, this sort of stuff simply works out of the box for me, so I am somewhat stuck on what to do. Could it be a driver-level bug?

I'm not sure what you mean by "mixed with audio in Alsamixer". Can you clarify?
With that said, my problem did mysteriously fix itself after some update (presumably to alsa). Unfortunately, I noticed it in passing one day while I was changing the volume of something in pavucontrol, so I don't remember the exact update that caused it to work. But yes, my current setup does work now: I can listen to audio through my DAC and use the Yeti for recording. However, I have found that use of the Yeti crashes Google Hangouts, although it works perfectly in every other program I've tried.
As documentation, here is my current working setup (it is very similar to the above): in PulseAudio, the DAC is set to be a Digital Stereo (IEC958) output. The Yeti (called an 'Integrated Rate Matching Hub' in pavucontrol) is set to be an Analog Stereo Input. In the input devices section, I have the Yeti's volume set to around 58% (-14.31 dB), which is past the base volume a fair ways but produces decent levels for recording. The DAC's volume is set to 100% (0dB gain, the DAC takes care of the level). In alsamixer, I have the mic level for the Yeti set to 40.
Edit: This is a long-time-later edit, but let me say that when you have multiple USB audio devices, what USB hub and in what order they are connected seems to matter a great deal. If you can't get your Blue Yeti to work, try moving it to a different set of USB ports (controlled by a different controller) on your motherboard. This magically fixes the issue for me.
Last edited by rwiggins (2014-12-14 00:26:39)

How can you get a non-usb microphone to work?

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You will need a mic interface, you can get a pretty decent one for around $100, check this one out! http://www.amazon.com/Focusrite-Scarlett-Solo-Compact-Interface/dp/B00MTXU2DG/re f=sr_1_2?ie=UTF8&qid=1426555875&sr=8-2&k… or an adapter from http://www.amazon.com/IK-Multimedia-instrument-microphone-interface/dp/B00C68MZX E/ref=sr_1_1?ie=UTF8&qid=1426555978&sr=8… Sorry there is no other way around it.

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Performance tip: Keep the Desktop clutter-free (empty, if possible)
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http://www.apple.com/pro/tips/immaculate_desktop.html

How do I plug a non-USB microphone into a Mac Pro?

Question from an audio newbie....I've got a 2009 Mac Pro desktop computer. I just bought a microphone headset. The headset has a two-pronged plug in, a green one for the headset (speakers) and a pink one for the microphone. My Mac Pro has two speaker ports - one in front and one in back - but I can't find anyhwere to attach the microphone plug.
I don't want a USB headset because my USB ports are already maxed out. How can I attach this non-USB microphone and get it to work?

Look at your back side. Look at the booklet too that it came with or from support page manual.
www.apple.com/support/macpro
there are digital out audio and microphone on the backside.

IBook G4 - Seeking Compatible USB Microphone

Both of our iBook G4 (1.33 and 1.42 GHz) computers have dead internal microphones (located on right side of LCD panel). I'm hesitant to take the time to replace them, due to risk of damage to other components. As many of you know, there is no audio input jack on the iBook G4; only audio output.
We've been looking at various external USB microphones that are totally encapsulated within the USB stick. We found one out there that could do the job, but we are wondering if there is something else out there that could serve as another option. All we want to be able to do is set up audio for Skype on the 1.33 GHz machine, for now.
We believe that the USB ports are USB 1.0 and are not powered (i.e., 2.0) but could be wrong.
Advice would be greatly appreciated.
Here's the link to the only compact USB microphone stick we were able to find, by the Sound Professionals:
http://www.soundprofessionals.com/cgi-bin/gold/item/SP-USB-MIC-1
Thanks in advance!
-- Chris

I am pretty sure that the USB ports on your computer would be 2.0, but I think you can test this. Try plugging in a USB storage device (Made fairly recently). Then go to the Apple Menu, and click About This Mac. Then click More Info. When System profiler opens, click down the Triangle next to hardware and select USB. You probably have 2.0 if under the device you plugged in it says up to 480mbs per second. You should have USB 2.0, because my iBook G4 is older than yours and it has USB 2.
For Skype, I would think that any microphone for Mac OS X should work. Not sure, but it would be my best guess.
Hope that at least helped!
TheMacKid

Bought AKG 120 USB microphone - Picks up to much background noise

How can I reduce the hum? I bought the AKG 120 USB microphone for voiceover. I used a Seinnheiser ew100 G3 before - which worked okay. But I guess a condenser microphone is even more powerful and picks up more of what I did not want. When I compare the recordings the Seinnheiser is deeper and the AKG 120 picks up more hum and background noise.
Is there a software that can help me adjust the AKG 120? Right now it is picking up to much noise.

Hi Lillian83,
Final Cut Pro X has the ability to analyze audio for hum during import and while editing.
The relevant sections of the manual below will show you how:
http://manuals.info.apple.com/en_US/final_cut_pro_x_user_guide.pdf
Page 46 - Analyze Your Media
Audio analysis options
Final Cut Pro provides automatic analysis options that can fix common audio problems, analyze and group audio channels, and remove silent channels. You can analyze audio during import, or analyze video clips with audio issues in the Event Browser or in the Timeline.
Analyze and fix audio problems: Analyzes the audio for hum, noise, and loudness. Final Cut Pro automatically fixes problems that are considered severe (marked in red) and flags problems that are considered moderate (marked in yellow). For more information, see Enhance audio on page 199.
Page 199 - 201 Audio Tools and Techniques
To show the Audio Enhancements inspector, do one of the following:
• Choose Window > Go To > Audio Enhancements (or press Command-8).
• Choose Show Audio Enhancements from the Enhancements pop-up menu in the toolbar.
• In the Audio inspector, click the Audio Enhancements Inspector button next to Audio
Analysis in the Audio Enhancements section. (After you make any adjustments, the button
changes color.)
To turn on an enhancement, click its icon or select its checkbox (when the enhancement is turned on, its checkbox is blue).
Blue checkbox
To remove hum: Select either 50 Hz or 60 Hz for Hum Removal.
To close the Audio Enhancements inspector, click the back button .
Hope this information helps!
Judy

USB microphone for Vocals?

so i just picked up my macbook and im really liking garage band. Now usually im just a natural voice and acoustic guitar kind of guy but im going to give recording a shot. I've been doing some research and it seems like i have two options, buy a preamp and a nice condenser microphone orr a USB microphone. This sounds iffy to me.. I guess what im asking is will i get good sound quality out of it? Would it be better for me to to just get a mic. form the apple store like the blue bird or the snowball orrr just get a preamp from the local music shop or even the icicle xlr to USB converter thats also in the itunes store. Opinions of anyone who has had this predicament would be much obliged... thank you !!

half of it depends on your budget, the other half depends on your expectations. you should be able to get _really good_ results with a top quality USB mic like the ones shown here:
http://www.bulletsandbones.com/GB/Microphones.html
if you have a large budget, something like the Shure condenser in the above list is really top notch (my fav), however, if you then skimp on the interface, you'd be wasting money. iow, the cost has to include the mic AND an interface with excellent mic PREs, something like the PreSonus or Apogee interfaces here:
http://www.bulletsandbones.com/GB/Interfaces.html
personally, i'd suggest the USB mic as a starting point. you could always sell it in a year or two if you feel you've improved your recording skills enough to warrant it.

High pitched noise when recording w/ M-Audio Producer USB Microphone

hello,
I have an M-Audio Producer USB Microphone. Recording with GarageBand, nothing else connected, using an the Apple AC power cord (three pronged ground).
When I record with it plugged into the USB port closest to my FireWire port there is a constant high pitched noise.
When I record with it plugged into the USB port furthest from the FireWire port there is no noise at all (as it should be).
What's wrong with my USB port closest to the FireWire?

I am having major problems with iMovie (and iDVD) ever since I upgraded to OS.X.10.5.6. I had to scrap my last promo-video. I am now recreating it very gingerly saving as I go but I am now stuck again. I am getting the digital audio screeching under my video clips when I extract the audio and under insert titles and transitions. Does this describe your 'crickets'?
I have clean video and audio signal from my camcorder. Check your cam' playback to verify. After three attempts I do have clean material in iMovie but cannot proceed until I resolve this issue. I ruined my last video when I extracted the audio and ended up with a garbled rumble which I could not reverse.
I have another question elsewhere regarding burning to DVD but I now need to resolve this before I can get to test the recommendations in the reply.
I hope I have helped focus your symptoms. I also hope there is an answer out there for this issue.
BTW, Canon ZR-60 Firewire
Cheers,
Denny

Help Routing USB Microphones

I'm trying to use a USB mic with Logic Express.
To do this I believe the Channel on "Audio MIDI Setup.app" for my mic should be activated as "Channel 1" for LogicEx to recognise it as "Input 1" on it's I/O channel strip.
Is this mad belief correct? If so, how do I change the Channel on "Audio MIDI setup.app" from "Master" to "1"?
Hope I'm clear,
Cheers,
DariusC

Here you can see the screenshot of "Audio MIDI Setup" with the USB microphone:*
http://img.skitch.com/20091105-bu87st5mucfri9qtkf9a4mpddd.jpg*
If you look to the bottom right of the picture, you will see a table with columns headed "Ch", "Volume", "Value", "dB"...
Now, if you look at the channels, the master channel is activated, leaving channel 1 grayed out.
Here is the built-in microphone with channels 1&2 activated.
http://img.skitch.com/20091105-rwhdir47yq2yy78h6wgai5ki8b.jpg
Like the built-in mic, I want to use channel 1 or 2 for the USB mic.
The problem is, I can't find a way to activate channel 1 for the USB mic.
Cheers,
DariusC
Message was edited by: DariusC

Two USB Microphones.

Hi guys,
Could someone who is a lot cleverer than me help me out? I am trying to use 2 USB microphones (Pro Sound A99JB HQ Podcast Microphone) for a podcast however I can only ever get sound from one. I have tried to create a aggregate device but this hasn't changed my situation (maybe I haven't done it correctly). It seems like I need to assign a mic to different inputs. Is what I am doing even possible? I am using Logic Pro 9.
Any help would be very welcome. I would also throw in a free portrait on the Draw Something App, tempting I know

Just as further information about this issue, here is what appears for the two microphones in the System Profiler:
Blue Snowball :
Product ID: 0x0005
Vendor ID: 0x0d8c (C-MEDIA ELECTRONICS INC.)
Version: 1.00
Serial Number: 201011
Speed: Up to 12 Mb/sec
Manufacturer: BLUE MICROPHONE
Location ID: 0x06400000
Current Available (mA): 500
Current Required (mA): 100
Blue Snowball :
Product ID: 0x0005
Vendor ID: 0x0d8c (C-MEDIA ELECTRONICS INC.)
Version: 1.00
Serial Number: 201011
Speed: Up to 12 Mb/sec
Manufacturer: BLUE MICROPHONE
Location ID: 0x04100000
Current Available (mA): 500
Current Required (mA): 100
Steve

USB Microphone settings

Can someone please clue me in on the proper settings to get my new SAMSON USB microphone to work? I got it to work once, by luck I suspect, by messing with the settings in Audio/MIDI set up, Garage band preferences and the sound settings in my system prefs. There is some holy combo that I can not recreate.
Extra special thanks if you can help me figure out how to have both the voice (from the mic) and my guitar can be recorded at the same time.

You can check AMS to make sure the mic is set to 41000 sample rate and a bit depth of 16, but other than that, all you have to do is select the USB mic in GB's prefs. What have you done in GB? Have you created a New Basic Track?
For the guitar when you have AMS running, open its help and search for "Aggregate Device". You may be able to create one which includes the USB Mic and the line-In. The you'd select the Aggy Device in GB's prefs, and select which channels to record on which tracks in Track Info.

USB Microphone cut's out

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