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

Similar Messages

Independent recognition of two usb microphones (same make and model)

Hi Folks,
The issue described here was already nicely described in a different post during a response to a different question. I reproduce it here, since it seems to warrant some independent attention. The original post was from "Points East" and the link is:
http://discussions.apple.com/thread.jspa?messageID=13127891&#13127891
Here is what was posted by "Points East":
"I'm trying to use two Blue Snowball usb mics for audio input to GarageBand. When I connect them I can see both in the System Profiler (one on each hub with different location ID's) but when I go to the Audio Midi Setup utility to create an Aggregate Device I only see one listed."
I, too, am having this same issue. Let me add more detail:
* I can plug the two BLUE Snowball microphones either into the two USB ports on my MacBook (running 10.6.7) or into two ports on a powered USB hub, which is then plugged into 1 of my USB ports on my MacBook
* I can see these listed as two separate USB devices in the System Profiler
* However, in "System Preferences"->"Sound" only one of the two microphones appears listed as a USB device and only one (the first one plugged in) is responsive when exposed to sound (tapping on the mic).
* Also, in the "Audio MIDI Setup" the microphone model is only listed once and seems to correspond only to one of the two plugged in microphones
* Separately plugging in one mic at a time shows that both independently work find and record sound. It is only when they are plugged in at the same time that one of them doesn't get listed in "System Preferences"->"Sound" or in "Audio MIDI Setup" and thus I cannot actually use both mics to record.
Is anyone else having this problem, and if so, has anyone either solved it or have some idea about where to begin testing?
Regards,
Steve

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

Hook-up Two USB mics to iMac

Is there any easy way to hook two USB microphones into an iMac through USB ports? Particularly if you're an idiot?

just plug them in but using them at the same time is another matter
pretty sure the general system only support 1 at the time so it's up to the app to support more
in my sounds settings I have
Internal Microphone
line In
soundflower 16ch
soundflower 2ch
Nokia BH-503 (this is the mic in my bluetooth headset)
Logitech camera (this is the build in mic in my extre logitech usb webcam)
all can be used by the system but only 1 at the time
if you want support for more then one then I believe you have to depend on the music recording app supporting it

Recording two USB mics at the same time

Is there any kind of special set up needed to record two usb microphones into Garageband at the same time – and so they record onto two different tracks.
Thanks,
Ray

Is that in System Preferences or is it an app in
Applications?
It's an App in /Applications/Utilities/
Can you give some more details?
Launch Audio MIDI Setup and check the Help.
I would not have ever thought to
look at MIDI settings to record vocals from a mic.
Well it is Audio MIDI Setup B-)>
guess I thought maybe I would be able to select each
mic just using GarageBand.
GarageBand only allows you to choose a single device for Input.
--HangTime [Will Compute for Food] B-|>

GarageBand 10.0.3 won't detect my USB microphones

I've been running into an issue with the new Yosemite 10.10 and Garageband 10.0.3 combo. Garageband won't recognize either of my two USB microphones, even though they show up listed as audio devices through the OS X system. You can select them in Gargageband, but once you start recording you get an alert pop up that says "no input source selected!"
Anyone know what's going on?

You can select them in Gargageband, but once you start recording you get an alert pop up that says "no input source selected!"
Have you selected the microphone in the Smart Controls of the Track - the Info panel?

I have three Blue Yeti USB Microphones, and when I try to create an aggregate device in Audio MIDI on my MBP it lets me select two microphones but not the third. I need all three for a podcast, any solutions?

I have three Blue Yeti USB Microphones, and when I try to create an aggregate device in Audio MIDI on my MBP it lets me select two microphones but not the third. At first I thought maybe the third microphone was just defected or something but I tested the mic individually and it works fine. It'll let me use two Blue Yeti's and another microphone but not three Yeti's at once.

David Boroditsky wrote:
The problem is that the mac chokes on having 2 identical mics attached at the same time.
Ive had 2 identical USB AT2020 mics connected at the same time on both macbook pro and macbook Air.
The "Yeti" mics, are, lets say undesirable, and low to mid computer consumer mics.

Blue Microphones icicle: two USB-in interfaces?

Hey folks,
I'm new to the Adobe Audition software, and I'm working on putting together a podcasting setup. For starting, I'm using a Blue Microphones "Spark" XLR mic with the blue icicle preamp. I would like to add another microphone to my setup, and I went to the FAQ for the icicle and noticed this under the FAQ section.
Can I use more than one Icicle at a time?
Some audio editing software allows for multiple USB connections. Check with your software vendor-- they should have technical support staff who can answer all of your questions about their product.
So i'm curious, anyone have experience successfully using multiple USB-ins with audition? I'm using CC, if that helps.
Thanks so much for ya'lls time,
Quin

If multiple instances of the same device only show up once to the operating system, then Audition won't be able to do much about that. But on both platforms there are solutions to facilitate multiple USB audio inputs. As Bob mentioned, OS X offers "Aggregate Devices" which allow you to create a virtual audio device with both selected as inputs. You can then setup Audition to use this Aggregate Device as it's primary audio device, and configure your recordings to use each of the usb devices contained within.
On Windows, it's possible using ASIO4ALL which can perform a similar function. By selecting both of the USB microphones as input devices and your standard audio as the output device, you can use this virtual device in Audition and each usb microphone should be available as a separate input channel option.
Where things might get tricky is synchronization. Over time, subtle differences in the device clock speeds can result in shifting sync problems. Not much we can do about this as it's inherent to the nature of these devices, but for non-music purposes, it shouldn't be too noticeable. In any case, it's worth a shot. ASIO4ALL is a free download from www.asio4all.com.

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.

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.

USb Microphone Help - clicking so

About two months ago I purchased a USB Logitech desktop microphone (as seen here: http://www.newegg.com/Product/Product.asp?Item=N82E683660). It worked fine up to two days ago... Now, everything it records gets overlayed with a persistent clicking sound.
I saw another user post a similar problem, but for a non-USB microphone, hence my separate post as USB takes the sound card out of the equation. Just for kicks though, I'm using a SB X-Fi. I have tried muting the input options on that, but don't see how that could conflict as the USB microphone installs itself as AK#### and that is what is selected as the recording device.
Anyone have any idea?
Thanks in advance!

Info for headphones (in case that is what you were referring to).
If your iPod headphones aren't working, try connecting them to your computer's audio output or another audio device that has a 3.5 mm stereo headphone jack. If the issue persists, use the form below to order replacement iPod headphones.
http://depot.info.apple.com/ipod/

Logitech USB microphone does not work with OS 10.4.11

My logitech USB microphone was working fine, at one time. Now it does not function. In the sound prefs setup, it shows a level reading, as if it is hearing the input, but there is no output. I have tried every setting I could find in Audio Midi Setup as well, and nothing seems to work, and the "thru" option is not available. Can somebody help me here?

Hi stuntmedia, and a warm welcome to the forums!
See if it's the Mute button first...
http://www.macosxhints.com/article.php?story=20070714102116127
If that doesn't work, LineIn should...
http://www.rogueamoeba.com/freebies/

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)

Is it possible to have two USB drives for the IPad? I want to bring RAW photo files from my camera, through the IPad and back to an external hard drive. One of my cameras does not use an SD card. How can I do this?

Is it possible to have two USB drives for the IPad? I want to bring RAW files from my camera through the IPad and out to an external hard drive. One of my cameras has an SD card but the other one doesn't have a card that would fit in any of the camera devices I've seen on line. Realted to this, I bought the IPad camera accessory. Can I put the SD card in the device and also hook the external hard drive to the USB port of the accessory and download from the camera to the hard drive? Can I put Lightroom or the Nikon photo editing software on the IPad? Right now I carry a PC laptop and external hard drives with me on wildernes trips. Internet and WiFi are not available. Because I shoot so many photos and they're in RAW I need to download from the camera to the external drive because I run out of memory on the PC (and it has much more memory than the IPad). I have Nikon NX software and lightroom on my PC. I'd love to be able to reduce the weight I carry by using the IPad to edit my photos each night while on trips. Is this possible and how would I do it? I'd appreciate any guidance.

No, the camera connection kit only supports the copying of photos and videos to the Photos app, it doesn't support copying content off the iPad. For your second camera instead of the SD reader part of the kit, does the iPad to camera cable not work with it for direct transfer to the iPad ?
For Lightroom and Nikon software again no - you can only install apps that are available in the iTunes app store on your computer and the App Store app on the iPad, 'normal' PC and Mac (OS X) software are not compatible with the iPad (iOS). There are some apps that perform fairly basic editing functions that are available in the store, but nothing as sophisticated as, for example, Lightroom.

Is there a known problem with USB microphones?

Background
OS X 10.5.8
Premiere Elements 9
Hardware Intel iMac
I use a USB mic with all my audio applications.
However, it appears that PrE doesn't see the mic for narration. I've set up the audio hardware preferences to use the Default System Input/Output but no recognition of the mic.
The mic works fine on all my other applications and is selected in system preferences to be the input of choice, and tests indicate it is recognized.
I changed the audio hardware selection in PrE to use the built in mic and it works as expected.
So I'm led to wonder if there is a problem with using a USB mic?
The documentation, referencing windows only, mentions plugging in a microphone to the microphone socket on the PC, not mention of a USB mic?
Any pointers to where I might find a solution?
Thanks

Thanks Neale, in particular for posting the images:
nealeh wrote:
To use my USB microphone (built in to my webcam) I go to Preferences> Audio Hardware and select "Premiere Elements Windows Sound" as the Default Device.
Then click ASIO settings and ensure your microphone is selected.
I believe I'm making a similar selection
I've tried all the selections. The built in system works but my external mic, when selected in system preferences as the default, is not recognized.

Possible to have two USB keyboards together?

Hello there.
I have the USB keyboard that goes with my iMac, that I use for normal computer use and web development. But I'm also a budding music producer and a user of Ableton Live. I saw an article on how a guy modified his USB keyboard (by painting it etc.) to use with Live and I wanted to do the same.
Thing is, I don't want to keep on taking out my normal keyboard and plugging in the modified one everytime I switch between web development and music producing...
So I wondered if I could just have two USB keyboards connected to the computer and I could use either one when I wish (not at the same time, just one for one task and one for the other)...
Is this possible? Thanks.

Sure, two keyboards connected to a single Mac works just fine.

Two USB Microphones.

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