Questions about audio hardware and software in Linux and other UNIX operating systems.

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0
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2answers
117 views

How to remote Linux desktop with audio support

I have a Debian PC (Server) and I would like to remote this machine from one client (Windows, Ubuntu,..) and be able to hear the sound from the server. I tried some tools (Radmin, RealVNC, but I ...
2
votes
1answer
35 views

Setting maximum volume

I usually work in a WM (i.e., i3wm) and use alsamixer to adjust sound volume. The recent Linux installation on a Dell t5500 machine gives a very loud sound when set the maximum volume in alsamixer. ...
5
votes
2answers
563 views

How to encode huge FLAC files into MP3 and other files like AAC?

My problem is very long recordings, longer than supported by WAV. I'm talking about continuous recordings of around eight hours in length. Now, I do most of my recording using sox into FLAC, which ...
0
votes
0answers
57 views

Auto-detect headphone jack

I am using ALSA on Arch Linux on a MacBook Air 5,2 (mid 2012). This is my first time using alsa by itself (without any tools that come with gnome), so I may have not configured something in order to ...
5
votes
2answers
268 views

Microphone - static background noise suppression on Linux

My soundcard is Realtek ALC 892. On Windows 7 I use official Realtek drivers, on Linux I use PulseAudio (on Ubuntu 13.10). On both Windows and Linux, when I enable microphone boost +30db (required ...
0
votes
1answer
52 views

How do I capture audio from interactive webpages using VLC?

I'm trying to capture an audio video feed (screen-cast) from my web browser and all screen-casting options I tried have the same issue: No sound is captured Platform I'm using a near default ...
4
votes
4answers
1k views

How to “reencode” mp3 files

I have a fair number of mp3 files which I created using audiohijack pro on a mac. Now I no longer have a mac and am using them on my linux systems. Unfortunately the program I use (rhythmbox) to ...
1
vote
1answer
22 views

Utility to tag regions of audio files

For example, say I have a recording with lots of noise and people speaking, I'd like to tag areas where people are speaking with a 1, and by default everywhere else is 0. Then save this file ...
2
votes
1answer
436 views

After upgrading the kernel, the sound no longer works

I have updated the Linux kernel on my system to Linux 3.11-2-amd64 #1 SMP Debian 3.11.10-1 (2013-12-04) x86_64 GNU/Linux. Having done that, the sound no longer works. Distribution Info(cat ...
1
vote
1answer
131 views

No on-board sound on Dell Optiplex SX-280 post Linux Mint Petra Install

Not sure this fits in here.. We recently installed Linux Mint Petra on this small-form-factor dell desktop. The weird thing is, the sound does not work on board, but works on a speaker connected to ...
0
votes
1answer
36 views

Digital audio between Intel Atom E640 and ADAU1445

Background information: I have a ADAU1445 DSP from Analog Devices connected to multiple audio sources through the Serial Input pairs. One of these sources is an Intel Atom E640 processor running ...
0
votes
1answer
27 views

Does WINE support .wma playback through MCI?

This application (zip file) extracts .wma file but fails to play it under WINE. I have installed Windows Media Player 10 and it is able to play this embedded audio file under WINE, but it could use ...
3
votes
2answers
440 views

Tmux makes a sound when I launch it, how could I disable that?

When I launch tmux in the terminal, is causes my Linux Mint to play a sound in the speakers. The sound is a Linux Mint system sound. Perhaps it's the "alert" sound, but I cannot identify it by name. ...
3
votes
0answers
114 views

How to set up AMD Cayman/Antilles HDMI Audio (Radeon HD 6900 series)?

I've got an AMD Radeon HD 6950 card: $ lspci | grep AMD 03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cayman PRO [Radeon HD 6950] 03:00.1 Audio device: Advanced Micro ...
2
votes
0answers
23 views

What is needed for USB a device to appear under Sound in Ubuntu control panel?

I have a device that combines two audio interfaces and one HID interface. It enumerates correctly, as lsusb -D shows. Also, a trace with wireshark shows no errors - all descriptors are exchanged ...
2
votes
1answer
539 views

How do I configure PulseAudio for 7.1 Surround Sound over HDMI?

I have my machine connected over HDMI to a receiver. But when I try to use more than two channels with PulseAudio, I only get two. pacmd list cards shows the card, but does not show an HDMI profile ...
2
votes
3answers
281 views

avconv creates creates files whose duration is incorrect

I am attempting to create a variable rate mp3 from a flac using the following command: avconv -i t.flac -id3v2_version 3 -vn -acodec libmp3lame -aq 0 t.mp3 avconv and mediainfo both list the ...
2
votes
1answer
1k views

Using FFMPEG to stream to Twitch.tv with desktop audio?

I've been trying for the last hour or so to stream to Twitch.tv with desktop audio in the stream. Currently, I'm able to use this to get a video to display on Twitch: #! /bin/bash INRES="1280x800" ...
1
vote
3answers
2k views

Change sampling rate in ALSA

I'm a Computer Audiophile, I've used Windows (with ASIO4ALL)and OSX for Audio. Now I'm making Ubuntu 13 my HTPC/Stereo Audio. To begin with I disabled Pulse audio and using GooMusicplayer with ALSA. ...
3
votes
0answers
27 views

Auto-switching PulseAudio profiles based on input(s) channel count

I'm running audio over HDMI to my receiver, which has a full 7.1 setup connected to it. However, most of the stuff that I listen to has far fewer channels—some is mono, most is stereo, a bit is 5.1. ...
0
votes
1answer
40 views

KDE: temporarily changing sound system

A little time ago, I reported a bug related to Phonon/pulseaudio. For debugging purposes I was told to disable pulseaudio so phonon can use the hardware directly. So I searched about how to disable ...
0
votes
1answer
2k views

Unable to control audio volume in BackTrack5 R2

I have Backtrack5 R2, one of the several problems I have is the audio works but I cannot control the volume, it is always the same and it's very annoying. What can I do to fix this?
2
votes
1answer
218 views

Disable ATI HDMI sound device - Fedora with PulseAudio

I want to disable the ATI HDMI sound device. I have nothing connected to it and for some reason, although it isn't the default sound device, it sometimes kicks in and grabs my sound, leaving the ...
0
votes
1answer
46 views

Unwanted 32 bits audio sample type with default codecs

I'm running a fresh Debian sid / KDE with Pulseaudio and the VLC/Phonon backend (default). When I play a (16 bits) mp3 file with most of my players (VLC/cVLC, SMplayer, Juk, etc), the Pulseaudio ...
8
votes
5answers
5k views

How can I switch between different audio output hardware using the shell?

I use my laptop with an external monitor which has speakers. When the monitor is attached through HDMI I can switch (using the GUI: Sound Setting --> Hardware) between the normal laptop audio output ...
1
vote
1answer
94 views

motherboard beep

I need help. I am using a Debian machine, ARK-3360F, and I need to make it beep like it does when it starts-up. Unfortunately, there is not any other speaker than this on the machine, so the below ...
2
votes
1answer
236 views

Live noise cancellation of microphone audio with JACK, ALSA, Audacity?

Audacity has a very nice noise cancellation filter. Is it possible, using JACK with ALSA, to pipe live audio through Audacity's noise cancellation filter?
0
votes
0answers
13 views

avconv with negative audio quality value

Is it possible to set the -q:a parameter to a negative value? For example, the value of -1 is a valid quality level for the Vorbis codec.
5
votes
3answers
681 views

Command line audio player that exits immediately after file finished playing back?

I am experimenting with audio players in the command line, and noticed something weird: if the sound is very short, most players will take up to a second or two after playback has finished, before ...
2
votes
0answers
389 views

CentOS 6.5 sound permissions

I am trying to configure ALSA for a CentOS 6.5 minimal install, my problem is non-root users do not have permission to access the sound devices in /dev/snd because the files are missing access control ...
1
vote
1answer
67 views

why has /dev/dsp vanished from SUSE

I used to test my sound settings with the command dd if=/dev/urandom of=/dev/dsp This will play random sound over your default sound device (using OSS). I am using SUSE Linux. Now in the newer ...
3
votes
2answers
763 views

Where can I find the Linux driver for headphones in the kernel tree?

I have headphones with three buttons on them which allow me to control my music player with my phone. I want to write a driver for my headphones to make it control my music player on my pc (Ubuntu ...
0
votes
0answers
224 views

No sound in Ubuntu minimal + xbmc. Possible bug?

I'm running Ubuntu 12.04 minimal+XBMC with no gnome interface. lspci | grep -i audio 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) aplay -l **** List of ...
0
votes
0answers
284 views

Microphones not working on Apple macbook Air 1,1 (Early 2008) under Linux

I'm running Linux on an mba. I can't make the microphones (neither external nor internal) work. I test using alsamixer and arecord -Dhw -fdat -vv mic.wav together with aplay -Dhw -vv mic.wav It ...
5
votes
1answer
248 views

How do I get sound to work outside lightdm

If for whatever reason I sudo stop lightdm running on mint and just use a simple xinit session with mutter, is there some way I can get sound to work? Whenever I do that, it seems there's no sound.
1
vote
1answer
23 views

WMA conversion for playitslowly

I need to transcribe some audio files. The original format is .WMA. I've tried using both: ffmpeg -i some.WMA some.wav and pacpl -to wav some.WMA some.wav as well as exporting with Audacity ...
0
votes
0answers
24 views

How to set gstreamer backend to JACK

How do I set the gstreamer backend for versions 0.10 as well as 1.0 to JACK instead of pulse (or the autoaudiosink). I have tried the gstreamer-properties method, however that has failed for me.
14
votes
3answers
3k views

Change PulseAudio Input/Output from Shell?

I have a set of nice wireless headphones which I use from time to time, in addition to my speakers and normal microphone. I'd like to write a script to switch between one input and output source and ...
1
vote
0answers
37 views

Two “Audio codecs” have 100% power usage in PowerTOP - what does this mean?

Should I be worried? My battery power doesn't last long (~1hr), could this be the reason? How can I fix this (if it has to be fixed at all)?
3
votes
1answer
456 views

How do I resolve the garbled sound in Debian?

I just recently installed Debian 7 Wheezy with KDE and once I turn on the computer, the start-up sound is garbled. The closest description I can think of is that the sound coming out is somehow ...
0
votes
1answer
84 views

How to get sound intensity of an audio input through terminal?

I want to know the intensity of the sound being heard by an audio in source like a mic or Line-in through Command line. Kinda like the progressbar under the mouse but in CLI. audiointensity mic0 10 ...
0
votes
0answers
22 views

LMMS instruments don't play full notes

Here is an image of the piano01.ogg instrument in LMMS. As you can see by the wave graph, holding down the key will play a nice note that starts out loud and smoothly decreases in volume. ...
0
votes
1answer
53 views

Audiowerk 8 drivers for Linux

Does a driver exist for the old Audiowerk 8 sound card from now defunct Emagic? I have a system running Ubuntu 13.10 and would like to utilize one of these old sound cards.
1
vote
1answer
123 views

How to disable a usb sound device with udev

How can I disable USB device by Vendor ID? So I have: [root@piotr ~]# lsusb Bus 001 Device 002: ID 058f:9254 Alcor Micro Corp. Hub Bus 001 Device 003: ID 0d8c:000c C-Media Electronics, Inc. Audio ...
2
votes
1answer
112 views

Every few minutes sound is reset

I'm running Debian testing and I have a script that sets the volume of speakers on startup that looks like this: amixer -c 0 set Surround 50% > /dev/null & amixer -c 0 set Center 100% > ...
0
votes
0answers
106 views

How do I make Wheezy see my sound card?

I'm working on a relatively clean install of Wheezy - relatively as I installed it today and have been installing packages for quite some time. I previously had Ubuntu which played sounds, so it's not ...
3
votes
3answers
4k views

amixer - How to change recording channel?

So fat, I am setting up microphone settings : $ amixer set 'Rear Mic' 90% mute cap $ amixer set 'Rear Mic Boost' 80% But, after some sys. update, my default recoding chanell changed to 'Front Mic' ...
1
vote
1answer
144 views

How to handle live audio input, process, and redirect to audio output

I'm wondering how I can get audio input from a jack, process it sample by sample, then send the processed sample to an audio output jack. My plan is to run this on a raspberry pi with a USB soundcard ...
2
votes
2answers
94 views

Library for audio effects and modulation?

I'm building a site which will have multiple audio lectures uploaded, as it's mainly a feed for a certain person's lectures. What's annoying is that there are many things which can go wrong during ...
2
votes
3answers
192 views

Fastest way to convert a large amount of FLACs to MP3s

I'm looking for something that can take advantage of my GPU or at the very least, multiple cores of my CPU to convert a few terabytes of FLAC to mp3 (VBR v0) very quickly while preserving all of the ...