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

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0
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11 views

How to use sox or ffmpeg to detect silence intervals in a long audio file and replace them by zeros (aka suppress background noise)?

I have a long audio file that was created by concatenating many short files. I would like to detect silence between the speech segments (just a threshold is enough for my purposes) and replace them by ...
0
votes
1answer
31 views

Sound is not working in Ubuntu 14.04: suddenly stopped

The sound suddenly stopped working in my Ubuntu, so I googled and followed this link but it doesn’t work to me. Output of aplay -l: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA ...
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0answers
19 views

Issues with arecord command

I'm having some mixed results with the arecord command in the terminal. The hardware I'm using consists of the Cirrus Audio Card for the Raspberry Pi. I'm trying to record a 24-bit 192kHz sound (from ...
0
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0answers
15 views

Fedora - Integrated microphone not working

I just installed a fresh Fedora 21, my system is now up to date. Now, my problem is that my integrated microphone is not working. I tried several different fixes that doesn't work (install and ...
4
votes
1answer
665 views

Linux support for RTP-MIDI?

I have been spoiled by the ease with which I can connect my iPad up to MIDI applications on my Macbook using the native support for midi-over-the-network (apparently RTP-MIDI) provided by the CoreMIDI ...
0
votes
1answer
15 views

Change audio volume on the right device

I'm trying to change the master output volume of my USB DAC (PCM 2704). When doing aplay -L I get: null Discard all samples (playback) or generate zero samples (capture) default:CARD=ALSA ...
1
vote
1answer
413 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 ...
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0answers
13 views

linux-elementary os [closed]

I have installed luna recently, I am using it as daily driver, I am happy with UI and Performance , but of late I found a problem with dual audio output, even after connecting my headphone jack sound ...
1
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1answer
675 views

How to turn off internal laptop speakers when external speakers / headphones are connected in Elementary OS?

In the eOS settings I see no option to make internal speakers turn off when the external jack is connected.
1
vote
1answer
28 views

How do I set the output port on my audio card?

My audio card has two ports, for clarity I'll call them the 'speaker' and 'headphone' port. In windows, the audio control sees two separate ports, and I can switch back and forth between speaker and ...
1
vote
0answers
10 views

Raspbmc audio Scarlett 8i6 I/O

I am trying to get RaspBMC to play audio through a Focusrite Scarlett 8i6 soundcard but so far I cannot play any music through the default interface. I have tried checking the external audio ...
0
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0answers
13 views

JACK pitch shifting

I like to play along with songs coming from firefox on my MIDI keyboard, so I have Pulseaudio routed through JACK as detailed here. But a lot of the time, especially in older recordings, the pitch ...
3
votes
1answer
2k views

Sound volume control does not work in Ubuntu

My sound volume control does not work when I'm logged in with my regular user, though the sound works correctly. What's weirder is that the sound control works when I'm logged in as guest. With my ...
1
vote
0answers
12 views

Why do CUE sheet files have to have a blank line at the very end?

I was trying to split a .flac file using its CUE sheet and the command cuebreakpoints audiofile.cue | shnplit -o flac audiofile.flac, but kept getting some error. Checking with other CUE sheets I have ...
0
votes
1answer
650 views

My Ubuntu 14.04 LTS doesn't have sound

I installed Ubuntu 14.04 on VMware workstation version 10.0.0 on my Windows 7 machine. After installing I figured out that it doesn't have any sound so I checked the sound settings. All items seem to ...
1
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0answers
22 views

Playback and simultaneous recording through external USB sound card

I've an external USB sound card (in my case it's a TerraTec Aureon 7.1 USB). I've looped the earphone-out to the line-in using a 3.5mm jack cable. I'm interested in starting the playback of a MP2 ...
-1
votes
0answers
19 views

No audio after making changes to alsa-base conf

I have recently switched to Linux and have been struggling to get my sound to work with elementary OS. I have a Asus z97-a motherboard, so need to apply this fix: ...
1
vote
1answer
2k views

Splitting WavPack files when the .cue file and .wv file have different names?

If a directory contains an album encoded as one large .wv file and a .cue file, splitting the entire album into individual .flac tracks is a simple task: $ cuebreakpoints foo.cue | shnsplit -o flac ...
2
votes
2answers
571 views

Why does Arch Linux keep Windows headphone mute

I have Windows 7 installed, and headphones work perfectly. Few days ago, I installed Arch Linux along with Win7. This issue appears with gnome/xfce4/openbox. Perhaps it is not related to desktop ...
0
votes
2answers
26 views

How to convert WavPack to FLAC?

I need to convert a bunch of .wv files to .flac but I can't seem to find a program to do it. Does anybody know how I can do this? P.S.: I was wondering why Audacity does not support the importing .wv ...
3
votes
0answers
37 views

Set maximum volume in Arch Linux

Recently, I purchased new over-ear headphones that have some really powerful speakers. I usually have to listen at ~4% volume to use them comfortably. Each time I restart my computer, they move back ...
0
votes
2answers
733 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
1answer
21 views

Sound doesn't work on a Centos 6.5 VPS

I installed GNOME Desktop Environment on Centos 6 on my VPS, then I installed Firefox, Flashplayer and VLC. Everything work well but I can't hear the sound. I searched for a solution on the Internet ...
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5answers
11k views

Sending audio through network

This is a rather crazy idea. I am planing to set up a configuration that would send audio being played on my laptop to my home server via local network so that the sound is played on the server ...
0
votes
1answer
866 views

Ubuntu sound not working after sleep/suspend

Whenever I sleep my laptop I mean if I down the flap sound doesn't work, every time i have to restart my laptop for sound to make working. Fo instance right now sound is not working(since I closed ...
3
votes
1answer
700 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 ...
3
votes
1answer
674 views

how to merge two audio input source using avconv

I try to make screencast using avconv and I facing a problem. I finally succeed to record both pc output and microphone input , the problem is that they're not merged in the output file. (I saw ...
0
votes
2answers
48 views

Alsa mixer unmute problem on Thinkpad laptop

After updating my Debian jessie laptop yesterday, the mute/unmute button stopped working. The volume up/down buttons work and I can mute the sound but when I press the mute button again to un-mute, ...
1
vote
4answers
617 views

Consistent (physical) volume on set of files (volume normalization)

If I have, say, 20 music videos (.flv and .mp4), is there a way to play them in mplayer (mplayer2) without having to change the volume for each video, instead specifying a desired general volume, and ...
3
votes
1answer
564 views

Record audio from multiple devices with ALSA and Pulseaudio

I want to record audio from multiple input devices using ALSA and Pulseaudio. More precisely, I want to play UltraStar Deluxe. It is a game using SDL. As far as I can tell, it supports ALSA only. ...
0
votes
2answers
203 views

YAD and Zenity - Input Start/Stop Times to Trim Video

I have a bash script and a php script that function in concert to trim audio/video files using start/stop times. PHP script: <?php // Create datetime objcects $dt1 = new DateTime($argv[1]); $dt2 ...
1
vote
1answer
31 views

Is there any app that records notes with synchronized Audio?

Is there any application that it records audio and you take notes. After recording you can play the audio that was recorded when a specific text was written. There are apps that does this for other OS ...
0
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2answers
1k views

Alienware M14x - No sound in linux Mint 14 (Nadia)

I have done a fresh install of Linux Mint 14.1 x64 on my Alienware M14x. Everything was working fine after installed. Unfortunately the sound is lost after sometime. Theres no sound when playing video ...
1
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0answers
27 views

Unable to connect debian to android via bluetooth

I want to connect my android phone to my debian computer. And to be able to play audio from my phone through the laptops speakers. I have been able to do so in the past on Ubuntu and ElementaryOS ...
0
votes
2answers
862 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 ...
1
vote
0answers
55 views

PULSEAUDIO does not list my ALSA capture device as a capture source

First of all, Hello everybody! My name is Przemek Gajos and this is my first post here. I have recently written an ALSA driver for my audio capture card and I have problems with PULSEAUDIO ...
3
votes
2answers
2k views

volume hot keys in Crunchbang don't work

I've spent 2 hours on this and still can't figure this out. It's driving me insane. Please save my sanity. When I press mute, the pnmixer control in the top right shows that I've pressed mute, but ...
0
votes
2answers
263 views

FreeBSD 10.1 sound not working

I am new to BSD and I am experimenting with getting an old(ish) Packard Bell desktop machine out of mothballs. The basic installation of FreeBSD 10.1-RELEASE for amd64 seems to have gone fine, but I ...
2
votes
2answers
125 views

How to autoplay ogg stream at startup of Debian

I am programming a Rasberry to Pi to become a radio player. It is meant to be used to play the local college radio in the student union hangout. INPUT: Power is turn on. OUTPUT: Audio is played ...
1
vote
1answer
274 views

ALSAEQUAL runs, but sliders do not seem to affect audio

I want to have an equalizer that lets me easily adjust sound for listening to music on my laptop with headphones. I'm trying to install ALSAEQUAL since it seems that this is the preferred tool for ...
1
vote
1answer
24 views

How do i start a sound file without displaying the window of the player ?

Whenever I type xdg-open filename or vlc filename, a window opens and start playing the filename. How can I achieve to play the sound file without displaying a corresponding window in the command line ...
4
votes
1answer
136 views

Trim audio file using start and stop times

I have an FFmpeg command to trim audio: ffmpeg -ss 01:43:46 -t 00:00:44.30 -i input.mp3 output.mp3 The problem I have with this command is that option -t requires a duration (in seconds) from ...
4
votes
4answers
2k views

Extract audio from video in Linux with a GUI program?

When I use Thunar I like adding to custom actions command lines like those presented here, here and here to extract audio from videos. I mean without transcoding/altering the sound, just putting it ...
3
votes
1answer
276 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 ...
23
votes
3answers
18k views

How can I record the sound output with gtk-recordmydesktop?

I am using gtk-recordmydesktop to record the video output to my desktop. However, the videos have no sound. All the tutorials I found regarding this involved getting sound recorded from a microphone, ...
1
vote
0answers
274 views

Bluetooth (A2DP) Audio input device

I use my Ubuntu (13.10) laptop as an A2DP (Bluetooth audio) sink for my Android phones. The music I play on my phones is sent to the laptop and is heard through laptop speakers. Now I'm trying to ...
1
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2answers
65 views

Change of voice via ffmpeg or other application [closed]

I have a set of audio files containing voice recordings, I need to alter the voice signal so the speaker cannot be recognised in an automated way... Do you know some application?
0
votes
1answer
178 views

Audio not working on Arch Linux [solved-ish]--see #UPDATE

I've installed the alsa-utils package. Running amixer sset Master unmute returns the error amixer: Unable to find simple control 'Master',0. Executing alsamixer gives me the alsamixer application in ...
4
votes
1answer
1k views

Fix Skype audio input in Mint 17 Cinnamon

Linux Mint 17 Cinnamon (Ubuntu 14.04) HDA Intel PCH The microphone works well (tested with VLC's capture mode), but Skype won't catch any sound. Only PulseAudio is listed in Skype's configuration as ...
1
vote
1answer
75 views

Lost sound with xmonad

I downloaded this config to set up xmonad. Hit volume up, down, works fine. Hit the volume mute hotkey, sound's gone. All good. Hit the mute key again, sound's still off. Hit volume up, nothing. ...