General :: Audio - Fix A Feedback Loop On My Microphone In System?
Feb 25, 2011
First off, this isn't the usual "physical" feedback of a speaker being too close to the mic. This mic is part of a headset so there's no way for the output and input to overlap and cause feedback. This mic has worked perfectly for me in the past, but I recently re-installed my OS and it hasn't worked since.
It seems as if my audio out is getting redirected to microphone in. If I open up and sound recording program while I have some audio being output, the output will get echoed back in through the microphone channel, although any actual microphone input is never picked up. I can blow or scream into the mic and there's no indication at all that Linux is picking it up.
I'm running ArchLinux with ALSA. I've gone into alsa mixer and played with just about every channel in every way I can think of, and none of the options seem to fix the problem.
How should I fix this? I use my mic pretty much constantly when I'm on the computer, being without it sucks.
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Oct 12, 2010
I'm running Maverick right now, but the problem also occurs with Lucid. My sound card is a creative X-Fi Titanium (emu20k2). Audio playback is fine, surround is fine, etc. Audio capture is "fine" too - the problem is that the microphone picks up everything that the headset is outputting. This is very strange since the headset is a noice-cancelling headset and in order for that to happen on other platforms (windows) I essentially have to turn the volume up to astronomical levels. As always, this doesn't happen on windows.
Needless to say this poses somewhat of a problem with VoIP applications since folks I'm interacting with constantly hear themselves echoed back by me. The only solution is to tune down the microphone volume but that adds another problem: people can no longer hear me clearly.
So my question is: is there a way to enable echo reduction for Pulse Audio so that the mic doesn't constantly capture what's coming from the outputs? And yes - when I look at the "input" tab in the sound preferences application I can see the marker move if I speak - same with pavucontrol
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Sep 29, 2010
I"m running an online radio station and would like to run my headphone audio into my microphone or a virtual microphone, either way, I would like my audience to hear what I hear without having to hold the Mic to the speakers.
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Oct 13, 2010
I have installed Fedora 11 recently on a new system. Sphinx speech recognition was working fine on my old system. When i run the same project on my new system, the system does not respond as it is waiting for microphone voice input.
Then I checked the microphone and have set it properly and its working now. The details how i made my microphone working is at the following link: [url]
Though, I can record and play any sound, but it is not working with sphinx project.
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Jul 5, 2011
I am looking for a tool that will tell me, in less than half a second, if the microphone is picking up any sound above a certain threshold. (I plan to then mute the Master channel with another command line tool, like amixer.)
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Sep 1, 2010
I have a mytext file with month and year as two separate fields. likemytext fil
08 2010
09 2010
10 2010
........
........
........
I want to read the values of each field i.e., month and year into an awk script.
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May 11, 2011
I was looking for a way to boost the microphone audio (I tried in the menu sound preferences but it did not work) and thefore I installed alsa driver and alsa mixer.Now linux can't find both input audio device and both output audio device.how boost the microphone audio?? (remember that I have just tried with sound preferences menu).
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Apr 29, 2010
I've got Karmic installed on a MacBook, and I'm trying to get Skype up and running. I've already patched the iSight firmware, so the the webcam itself works fine, but I have no microphone support. If I go to Sound Recorder, the microphone picks up my voice fine, but not Skype.
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Jun 4, 2011
I have had success with operating JACK, but I am still learning... I can get audio through my microphone into ubuntu and can record into audacity without a problem, however, I do not know how to get JACK to recognize the audio from the microphone (through the normal mic jack)... any ideas how I may accomplish this so I don't need to do all kinds of file conversions and imports to set down a vocal track with the tracks I record (via USB) through JACK?
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Aug 10, 2010
my system:
Debian v.5.0.5,
architecture: i686,
Firefox 3.6.3 (but had the same problem with older versions of Firefox),
Flash: Shockwave Flash 10.0 r32
After a fresh X start, Flash works without any problems for a day or so but then at some point the audio starts to freeze in a loop (sounds like an old record with a scratch) and the video also freezes up. This happens while listening to last.fm, but the same problem affects other flash videos on other sites but apparently only if they have an audio track, so I think it is mostly an audio buffer problem.Restarting Firefox doesn't seem to help but when I log out and start a new session (rebooting is not necessary) it is fine again.Does anybody else have that problem? I couldn't find anything so far and I don't have rootaccess to this machine, so I'm a bit restricted.Does anybody know which files flash writes to for buffering stuff? Maybe I can just delete a file that has been somehow corrupted instead of restarting? It's quite annoying if you have lots of applications running
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Apr 8, 2011
I have some microphone problems. I can't record anything. (I'm using openSUSE 11.3)
My sound card was detected almost correctly (at least the chip-set was i think). I have an Asrock motherboard (k7upgrade880, with a Southbridge: VIA 8237 | Audio: CMedia CMI9761 6 channel AC'97.
I ran these commands so far with these results - while i was following the audio troubleshooting guide (SDB:Audio troubleshooting - openSUSE
But i have NO audio playback problems - movies, games, music all play well. And the Microphone guid has a broken link
I tried to change my 50-sound.conf file (i read it on a forum, I'm new to linux troubleshooting) from this:
options snd slots=snd-via82xx to this: options snd slots=snd-via82xx position_fix=1
But that did not work either. I did not get any sound with the last line.
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Dec 13, 2009
i just upgraded from Skype 2.0.0.72 to 2.1.047. Now my microphone isn't working anymore and i cannot select it in the skype options. From now on i can only select the PulseAudio server ..
So i have read some howtos for PulseAudio. They say i should starte PulseAudio Volume Control. ok.. Now i should go to the tab "Recording". This tab doesnt exist on my pc. I upgraded to the latest version of this volume control. It still doesnt exist.
I am using OpenSuse 11.0 with KDE4.3
Here are some screenshots:
[URL]
PS: My mic is still working with applications, that dont use pulseaudio.
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Jan 12, 2010
I am trying to record audio playback from an application and the microphone at the same time on recordmydesktop using pulse audio. I just can't figure out how to mix them both. I have tried a lot already and can only get either the mic or the audio playback to be recorded, not both. Can this be done using pavucontroll?
I have been search now for hours to find a solution (also here on the forum) for this and getting really frustrated now. Maybe i'm just missing something really obvious, so sorry if this is a stupid question.
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Jul 4, 2010
Is it possible to pipe audio from espeak into a microphone device?
I've tried doing
Code:
sudo espeak --stdout "Hello world." >> /dev/audio
but I just get:
Code:
bash: /dev/audio: Device or resource busy
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Jul 14, 2010
Can i find sample program to record audio through microphone connected to PC.
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Jan 14, 2010
I am going to be involved with a massive filesystem copy from a local to a remote server in the next couple of weeks. There are ten filesystems in involved in this process. All, except one, are one hundred gigabytes in size, with the remaining one at twenty gigabytes.The cp command with the -pr options will be used to copy the directories to their new location. A speed test, involving ten directories, was done to determine the average amount of time it would take to complete the process. The ten directories used in this test ranged in size from 2.3 gigabytes to 4.3 gigabytes. The results indicated the average amount time to complete the copy was around one minute and thirty seconds.
The question I have is the following: Is it better to interactively go to each filesystem and run the cp -pr command there, or should I write a script that will automatically go to each filesystem and run the copy?
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Nov 13, 2010
how can I adjust the volume level while recording audio playback and microphone at the same time? I managed to increase the audio playback volume with PulseAudio Volume Control (Input devices -> Monitor of Internal Audio Analog Stereo -> pressing green button "Set as fallback"), but once I click on that green button, no no microphone sound is recorded.
Details:
- using Ubuntu 10.04 LTS
- recording audio with Sound Recorder
- installed PulseAudio Device Choooser and PulseAudio Volume Control
- Input devices -> Internal Audio Analog Stereo --> shows the sound from microphone
[code]...
- how to adjust volume of audioplayback and microphone recording and record both as a mix together? Thanks!
PS: I checked out this thread, but haven't figured out how to adjust the volumes.
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Apr 6, 2010
I'm using openSUSE 11.2 KDE on a Fujitsu-Siemens Amilo Pi 1536 laptop. My problem is that my microphone (I'm attempting to use a 3.5mm headset) doesn't work. Audio playback however does work through the built-in speakers and headphones.
I have gone through the SDB:AudioTroubleshooting - openSUSE as suggested by oldcpu on the Welcome to multimedia sub-area sticky.
I have tested audio recording with
Code:
arecord -vv -fdat foo.wav resulting in a silent recording. The vumeter showed 0% during the recording.
Here is my url produced by the alsa-info script:[URL]
rpm -qa '*alsa*'
Code:
alsa-plugins-1.0.21-3.3.i586
alsa-1.0.21-3.2.i586
alsa-oss-1.0.17-25.2.i586
alsa-devel-1.0.21-3.2.i586
[Code].....
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Aug 16, 2011
I need get video from ip camera (RTSP) and audio from netbook microphone and send to rtmp:// ffmpeg -an -i rtsp://[...] -f alsa -ac 2 -ab 96K -ar 44100 -i hw:0,0 -f flv "rtmp://[...]" It'is not work! Audio get from ip camera If i get only microphone � sound work! ffmpeg -ac 2 -ab 96K -ar 44100 -i hw:0,0 -f flv "rtmp://[...]"
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May 21, 2011
About two days ago I installed Bodhi Linux on my machine. I like it because it's fast and small. Anyway, I have two issues: I can't get the system to recognize any of my audio cd's, or my USB drive. I don't even get a notification that there is anything in my DVD drive. The other issue is that I am unable to go in and look at my hardware configuration from the main window. I have looked through as many paths that I could think of without killing the system, and I don't want to try anything I know nothing about.
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Apr 13, 2011
I cannot get my audio to work except for system sounds. No music or video sound?
I'm running Ubuntu 10.04 LTS
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Nov 30, 2010
I've recently noticed a really irritating tick tick crackly sound coming from the audio system with intermittent crackles in between them, very irritating.
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Feb 8, 2010
I'm running Ubuntu 9.10 in a dual boot alongside Windows vista on an HP DV6000 laptop.It's been running smoothly for months. No problems.Today, I was in Ubuntu, and the Update Manager asked me to update (ok) and then said it needed to restart. I hit the restart now button and the system started to shut down, but never fully shut down. It's in a kind of loop, trying to start up, but not going all the way, and then shuts down again.I did a hard reboot but still nothing - the same loop. I don't even see my HP startup screen, nor can I access the BIOS, much less Grub.I put in the Ubuntu startup CD and it tries to read from that at startup, but then fails and returns to the same loop.
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May 5, 2010
The default output audio port Ubuntu doesn't work on my system. It should be "Analog Mono Output/Amplifier", instead of "Analog Output/Amplifier". I can easily change that in sound preferences, just by choosing the right port in the "Output" tab. The problem is this would only apply to a single account, and I would like to change it system-wide, so it applies to all accounts on the system (I have more than 100 users...).
Update: I can achieve the same effect as I would by changing it in sound preferences using the following command: pacmd 'set-sink-port' 'alsa_output.pci-0000_00_1f.5.analog-stereo analog-output-mono;output-amplifier-on' Unfortunately that's still not system-wide,
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Dec 30, 2010
How do I get launch feedback for Qt applications such as VLC? For example, if I open a file with a gtk application the mouse turns into a spinning thing to show the application is loading, but this does not happen with Qt applications.
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Sep 24, 2010
I'm a C newbie. Just wrote this temperature converter. I know it's very basic but, as it is, is there anything wrong with it? any things that are done incorrectly? It seems to work fine.
Code:
#include <stdio.h>
int main(void)
{
float fahr, celc, result;
int choice;
[Code]...
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Jan 7, 2010
At Dell we have worked hard to build out the Dell Consumer Support Home Page to be a thorough support website providing all levels of self-support service, as well as providing easy access to all of the relevant information needed to obtain assisted support. The design of the page has grown organically over time, but we feel it's time to give the look/feel of the page a facelift.
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Mar 14, 2011
There is a new openFATE proposal (http://features.opensuse.org/311661) to add a desktop icon to the Live CD's that will use smolt to provide feedback for hardware options that work.
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Aug 17, 2010
I am a sound engineer trainee and I'm desperately looking for a Linux version of the Simple Feedback Trainer [URL]. It's a rather easy but very good program that provide info to sound engineers train the detection of feedback frequencies. Do you know if such a thing already exists? I haven't been able to find it in the Ubuntu Software Center.
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Apr 7, 2010
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Code:
*filter
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-P INPUT DROP
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[Code]...
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