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

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17 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
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0answers
14 views

FFmpeg - Delete unwanted section on video without re-encoding?

Using ffmpeg to copy (extract) part of video without re-encoding audio/video, this is what I did: ffmpeg -i video-in -vcodec copy -acodec copy -ss 00:10:00 -t 00:02:30 video-out How to ...
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0answers
4 views

Need help configuring asoundrc

New Dell latitude E5450 I'm almost able to get the sound right. alsamixer does not save its configuration. $ sudo alsactl store $ alsactl store are no help. By trial and error, I did manage to ...
6
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2answers
52 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 ...
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0answers
9 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 ...
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0answers
9 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. ...
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1answer
13 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
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1answer
26 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 ...
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0answers
7 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] ...
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1answer
16 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 ...
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0answers
16 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 ...
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0answers
16 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.
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0answers
27 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. ...
2
votes
1answer
25 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
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0answers
10 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
88 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 ...
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0answers
16 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 ...
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0answers
46 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
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1answer
15 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 ...
0
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1answer
42 views

ffmpeg -acodec copy does not copy all audio stream to the new container

I wish i can find ffmpeg help here at stackexchange. I'd been re-encoding old videos to libx264 to save up some storage space, as I thought it should be working based on documentation seems failing to ...
2
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0answers
40 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
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1answer
32 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.
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0answers
21 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 ...
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0answers
27 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
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1answer
24 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
39 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 ...
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1answer
32 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.
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0answers
24 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 ...
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0answers
102 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 ...
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0answers
17 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 ...
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0answers
14 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 ...
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0answers
16 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
1answer
21 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 ...
1
vote
1answer
24 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 ...
2
votes
1answer
48 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 ...
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2answers
59 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". ...
1
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1answer
33 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 ...
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0answers
14 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 ...
0
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0answers
29 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 ...
3
votes
1answer
39 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
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0answers
29 views

Ubuntu Studio problem with WINEASIO: Press play - Nothing happens

I have managed to install WINEASIO on my ubuntu-studio 14 , it finally appeared under the ASIO list in both Reaper and Ableton 9, running on play on linux. Both are 32bit. qjackctl seems to be running ...
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0answers
27 views

Playing sound through /dev/dsp?

I have a USB soundcard attached to my Raspberry Pi. I used the command: sudo modprobe snd_pcm_oss which created /dev/dsp and /dev/dsp1. /dsp corresponds to the internal soundcard whereas /dsp1 ...
1
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1answer
52 views

How to detect peaks in audio file?

Given a several minute Wave file with short clicking sounds at semi regular intervals, how would I go about getting millisecond timestamps for each of the clicks? I'm trying to verify the accuracy of ...
1
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0answers
26 views

Sound output changing automatically

I'm trying to solve this problem for days. When I'm listening loud(around 100%) music, system is changing output device from Analog Output to Headphones output. Headphones output is not even available ...
1
vote
1answer
39 views

How to create the spectrogram of many audio files efficiently with Sox?

I have a bunch of audio files and I would like to create the spectrogram for each individual file using Sox. Usually, for a single file, I do this: sox audiofile.flac -n spectrogram However I don't ...
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0answers
84 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 ...
0
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1answer
33 views

How to burn lossless music to a CD?

I have a bunch of lossless files (.flac and .ape) that I would like to burn on a CD to listen to on any standard CD player (in my old car's for example), but I am unsure how to do it. Specifically I ...
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0answers
32 views

How to switch off my laptop speaker when headphones is plugged

I've Kubutu 15.04 then KDE Plasma 5 and my laptop speaker doesn't switch off when headphones is plugged. Here my alsamixer snaptshot: My laptop is a ASUS N550L My sound card I found with lspci: ...
1
vote
1answer
52 views

Disable beep/chime in Secure Shell in Chrome OS

How do I disable the beep/bell sound that is emitted in Secure Shell in Chrome OS? When certain commands fail, such as pressing backspace on an empty command line or on a failing tab autocompletion, I ...
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0answers
36 views

What are XRuns?

I have read about them several times and encounter them myself when setting the buffer size too low in jack or quitting audio applications. Nobody ever explains though what XRuns are. Can someone ...