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

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3
votes
0answers
135 views

Sound output not working properly in chroot

So I have a 64-bit Linux Mint 17 system and I am trying to set up a chroot environment with a 64-bit Ubuntu 12.04-based system (actually something called Vinux, an Ubuntu remix). The problem is that ...
1
vote
0answers
247 views

Sound card not detected by ALSA, but detected by kernel

Running arch linux with: Linux hunchback 3.17.4-1-ARCH #1 SMP PREEMPT Fri Nov 21 21:14:42 CET 2014 x86_64 GNU/Linux When i run: $ aplay -l aplay: device_list:268: no soundcards found... But it ...
4
votes
2answers
198 views

Sound crackles and echos to the point of being unusable [closed]

I recently got a new desktop, installed debian 64 bit, and found out that the sound doesn't work at all. I'm not entirely sure what information I should give to help identify the problem but I'll do ...
0
votes
1answer
305 views

How to disable event sounds in KDE5?

I wander how to disable event sounds in kde5 Plasma (the one that is heard when scrolling the volume in systray for example). I use Plasma in Opensuse 13.2 but this is KDE specific methinks. ...
1
vote
0answers
84 views

Firefox browser works badly with multimedia, Fedora 22

At first, a short pre-history: After unsuccessful upgrade with fedup from fedora 20 to 22, I reinstalled fedora 22 with live usb. I had partitions for /, /boot, /usr and /home, so I rewrited only ...
5
votes
4answers
5k views

Volume on Linux much lower than on Windows

I dualboot Slackware64 and Windows 7. The volume under Linux when maxed seems a lot lower than when it is maxed on Windows. My soundcard chip is Realtek ALC662. Volume is set to 100% for PCM and ...
0
votes
1answer
37 views

Sound is gone after booting system in text mode

I started using GRUB_CMDLINE_LINUX_DEFAULT="text" grub argument for my boots, and recently noticed that the sound is missing. I start GUI from terminal using startx command, here's my .xinitrc ...
1
vote
1answer
50 views

ecasound mixing and compression?

I chose ecasound as a tool for mixing a set of files and applying a simple amplitude compression. The sequence of operations should be: combine inputs > apply compression > save to output ...
4
votes
2answers
4k views

Change default port for PulseAudio (line out, not headphones)

When I boot, PulseAudio defaults to sending output to Headphones. I'd like it to default to sending output to Line Out. How do I do that? I can manually change where the output is current sent as ...
4
votes
3answers
1k 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 ...
7
votes
2answers
105 views

switching between shells, stops the music that is currently playing

While I was listening to music I changed the virtual console using Ctrl+Alt+F2, and suddenly the music was paused. Returning back to the console that runs the X server Ctrl+Alt+F7 or logging in to ...
0
votes
0answers
125 views

No sound coming from Linux-based virtual machines under Qemu on Linux Mint 16 host - why?

I have been using Qemu and virt-manager for quite some time (years) now and it's only recently that I noticed I don't get any sound output from any of my Linux-based virtual machines — it's always ...
1
vote
0answers
241 views

Use equalizer and an usb audio card

I have Raspbian installed on my Rasperry Pi. I have a Delock USB Audio Card and setted it up, works good. My speaker set has a quite strong bass, so I need an equalizer. There is an alsa plugin which ...
5
votes
1answer
333 views

Default sound volume for all ALSA devices

I woud like to set up the default sound volume once for all, for all ALSA devices that will be connected ever. Of course, I could do amixer ... or even alsamixer to modify the volume of currently ...
1
vote
0answers
80 views

How to find the configuration differences between two identical usb audio dongle devices?

I have two units of the same headset model that use a wireless USB dongle (Logitech H800). Each headset only pairs with its own dongle, but I want to get the same dongle to work with both headsets. ...
1
vote
1answer
34 views

Bad ID3 tags when transfering mp3 to another device

I created mp3 files in Linux with mp3wrap application and then I applied ID3 tags on it as follows $ for i in *.mp3; do mp3info -t ${i%.*} -l yes1 -a yes $i; done When I look at particular mp3 file ...
0
votes
0answers
16 views

Devices attached to sound card

cat /proc/asound/devices on my laptop gives following output: 1: : sequencer 2: [ 0- 0]: digital audio playback 3: [ 0- 0]: digital audio capture 4: [ 0- 0]: hardware dependent 5: [ 0] ...
13
votes
4answers
6k views

Can I setup a loopback audio device?

If I can send audio to the output devices, then I can record the same audio as a wave. With filesystems, you can just setup a loopback filesystem and write binary data on a file instead of a device. ...
0
votes
0answers
66 views

Microphone not working

My microphone is not working. I'm using front panel for it. Headphones are working fine. I tried several things and none worked. I'm using Ubuntu 14.04 LTS.
1
vote
0answers
180 views

Treat USB Sound card mic input as line input

I have a Creative Labs Sounds Blaster Play (SB1140) USB Sound card. When I plug it into either a Windows or Mac computer, I am able to record line level audio through the Mic jack - clean and clear. ...
3
votes
1answer
423 views

Command line per-application volume (maybe amixer or pactl?)

I can change the master volume with these commands (from the command line), and it affects all applications, but how do I change the volume for just one application (XMMS for example)? amixer -q set ...
1
vote
1answer
89 views

No more notification sounds

Since a couple of days, my system has taken to no longer playing notification sounds. And I don't know what I changed to make that happen. (My gut feeling says: "but I didn't change anything!", but ...
1
vote
0answers
16 views

Is it possible to let the active virtual term be the only one with audio access?

I'm currently running Fedora 22 and want a setup where Kodi runs on vterm1 while steam runs on vterm2. I have set up two seats using LightDM. I am currently using ALSA in order to let Kodi bitstream ...
3
votes
1answer
165 views

Find, count and sort all audio files. ALAC (M4A) files

I'm putting a script together to sort a very large music collection. It's approx 22000 albums, a mixture of FLAC, WAV, AIFF, M4A (AAC & ALAC). So far, I can sort by file type and get a total size ...
1
vote
0answers
78 views

HTML5 audio stuttering, how to debug Pulseaudio?

i've got a strange issue with audio playback on html5 videos (youtube for example). The Video plays fine, but the sound has dropouts for about 1 second almost every minute. Is there a way to debug ...
1
vote
0answers
435 views

How to add more system event sound effects in Cinnamon?

How can I add more sounds to different system events on Linux for different actions or events? For example by default on some Linux desktops, say Linux Mint for example, you get sound effects when you ...
0
votes
1answer
35 views

What to do if no /dev/dsp or /dev/audio or /dev/MAKE

I am using Fedora 20, with Mate desktop and zshell. In order to practice reading Morse code, I want to play text as Morse using a program cwcpm downloaded from this site. The documentation with it ...
2
votes
0answers
248 views

Sound Problem in ubuntu startup

When Ubuntu boots first time, no sound comes out of speakers. But when I insert any headphone the sound is OK. also when I insert headphone first time and eject it from laptop then sound comes fine ...
0
votes
1answer
147 views

Centos 7.1: how to record from audio input (not microphone)

I use centos 7.1. What application can I use to record audio input (not microphone) from sound adapter? For example I connect TV sound output to PC sound card input.
1
vote
0answers
66 views

Streaming audio from a web interface

What I Want To Do Allow anyone with the public IP for my EC2 Instance to browse and listen to a collection of radio programs I record live. Requirements All setup possible through CLI (since the ...
0
votes
1answer
62 views

no game sounds with XFCE and pulseaudio

Since recently I have sound problems ingame but now I have no ingame sounds can someone help me? Which info should I provide? EDIT: For saved videos the same.
0
votes
0answers
219 views

No sound on detected headphones (arch)

alsamixer and pavucontrol shows everything is detected and unmuted. The speaker on my Laptop are working, only the headphones are detected and on mute or unmute I hear a short crack and nothing ...
1
vote
1answer
172 views

Generating a long sound file with SOX without actually playing the tone

I know how to play a tone for a specific amount of time using SOX. play -n synth 5 sin 347 I know how to save a tone using SOX. sox -n note.mp3 synth 5 sin 347 Question is : How can I save a ...
1
vote
1answer
185 views

How to remove the APE tag in an MP3 file?

An MP3 file can support three different types of tags (that I am aware of): ID3V1, ID3V2.4 and APE. I would like to know how to remove an APE tag in an MP3 file or files, since it is giving me ...
0
votes
0answers
66 views

Why can't I edit the tags of some mp3 files?

I am having this weird problem while trying to edit the tags of my music library: I modify them with EasyTAG and there seems to be no problem (VLC recognizes the changes I make), but I then transfer ...
0
votes
0answers
819 views

How to setup “Creative Sound Core 3D” on Debian Jessie correctly?

I justed installed Debian Jessie and was happy to see (or hear) that my Creative Sound Core 3D (as onboard chip on my Gigabyte GA-X99-Gaming 7 WIFI mainboard) worked out of the box when trying to play ...
1
vote
0answers
85 views

How can I synchronise kmix and alsamixer volumes at maximum?

Occasionally, I can increase kmix's volume to its maximum (using the volume hotkeys), but the sound is still very quiet. I can open up alsamixer, and see Master at ~8%, even though kmix's volume is ...
1
vote
0answers
30 views

Intel HDI Sound (ThinkPad X60) not working without display manager

My sound works out of the box under Fedora 20 as long as I use lightdm. But I don't want to use any display manager -- if I use X, I start dwm manually. Unfortunately, the Intel HDI driver (Model ...
1
vote
1answer
58 views

Detect when audio card is powered (using alsa)

How can I detect in a script if my audio card is being powered? Motivation: I have a Linux mini computer (Odroid U3), used as a music player. And I want to power on a connected amplifier only when ...
0
votes
0answers
27 views

How should can I set up a machine dedicated only to running ZynAddSubFx syntheziser?

I'd like to set up a Linux machine dedicated only to run the soft synth ZynAddSubFx or Yoshimi (and receive midi data for ditto). The synth should start automatically when I switch on the power. I'd ...
1
vote
2answers
404 views

Audio cd doesn't play

I'm trying to play an audio CD in Debian but each time I insert the CD, while there appears an icon with the CD in the screen, when I try opening it I get the message: Failed to mount "Audio CD". ...
3
votes
1answer
757 views

bdl_pos_adj: set IRQ timing workaround for hda-intel

I get following errors in my logs: kernel: snd_hda_intel 0000:00:1b.0: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj Google found some old posts here and ...
1
vote
1answer
171 views

Create SOX batch script to extract first 15 seconds and rename multiple files in folder

I have a folder with several MP3 files that I need to extract 10-15 seconds of audio from. I would also like to rename these by appending sample-(name).mp3 to the converted files. How can I do this ...
0
votes
0answers
27 views

Is it possible to have a separate audio for selected application with PulseAudio?

Currently I have single audio card (actually it is part of motherboard). I have installed PulseAudio, Skype, and other software. What I would like to do is buying second audio card (because I suspect ...
3
votes
1answer
106 views

How do I check if sound card is in use and, if possible, which process is using it?

I want to know if a program is using my sound card without my knowledge. I thought about building a program that uses low-level device driver code to do the trick, but am now interested in seeing if I ...
0
votes
0answers
84 views

Awful sound through speakers in Elementary OS

I just recently installed Elementary OS Freya on my Alienware 14, double booting with Windows 8.1, but I've come against a new problem, the sound that comes out the speakers is just awful, just too ...
36
votes
5answers
62k views

Set volume from terminal

Is it possible to set the audio volume using the terminal?, instead of clicking the speaker icon in the topbar, the reason I want need to do this is because my keyboard does not have a volume ...
5
votes
2answers
681 views

How can I disable the shutter sound of gnome-screenshot?

After a recent update of my LMDE, the gnome-screenshot tool started making an annoying camera shutter noise every time a screenshot is taken. This is both annoying and startling (especially if you ...
1
vote
0answers
341 views

avconv: remove audio stream, keep audio and video synchronized

I have an AVI file with one video and three audio streams. I would like to discard two of the audio streams, keeping only one. I tried to do so using avconv (v11.3-6): avconv -i in.avi -map 0:0 -map ...
4
votes
1answer
957 views

VLC surround to stereo problem

I noticed a problem with certain video files where speech volume component is just too low. I googled a bit and it seems that the problem is that it tries to play surround sound on stereo speakers and ...