The tag is for questions about the recording and playback of speech and music on your computer, but also for problems about the sound component of videos.

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5answers
22k views

Can I lock the volume or disable the volume keys on Mac OS X?

When my small children play games on the Mac, they use the keyboard shortcut (what ought to be the "F12" key) to turn the volume up to the max, which is way too loud. I'm working on configuration ...
7
votes
5answers
3k views

Command line tool to identify audio file specs

I'm looking for an audio file equivalent to ImageMagick's identify command. For example, with identify, I can get brief information about a bunch of images: % identify b* banner1.jpg JPEG 134x614 ...
7
votes
8answers
46k views

Make headphone output mono

my headphones are stereo but I would like the sound from the left and right to be combined then sent to both headphones. The reason is I'm watching a video where the people speaking are in the right ...
7
votes
3answers
4k views

Finding out if a FLAC or WAVPACK audio file is NOT originally encoded from a lossy source

Is there a way of checking that the so-called FLAC or WAVPACK audio file was originally encoded from a lossless source (WAV, CDA, APE, etc.) instead of a lossy source (MP3, AAC, ATRAC, etc.)? Say I ...
7
votes
5answers
4k views

Disable Mac startup sound

Anyone know how to disable that cheesy startup sound when I power on my Mac? If it makes a difference, I'm running Mac OS X 10.6.
7
votes
1answer
4k views

How can I convert WAV to Apple lossless in the terminal?

I have a lot of WAV files that I do not wish to import into iTunes to convert. There are too many. I would like a way to convert these to Apple lossless in the terminal before importing to iTunes.
7
votes
4answers
7k views

How to emit sound using built-in speaker from a command line?

How to emit sound using built-in speaker from a command line in Windows and Linux?
7
votes
4answers
8k views

How to adjust the sound volume in small increments in Mac OS 10.7 (Lion)? [closed]

I use a Macbook that has dedicated sound volume buttons (F11 and F12). In Mac OS 10.6 I was able to adjust the sound volume in smaller increments (1/4th of a square) by pressing Shift + Option + ...
7
votes
3answers
7k views

Mono sound output in Ubuntu?

Is there an easy way of forcing mono sound output - for one ear, one earphone, one speaker?
7
votes
4answers
13k views

How can I play FLAC audio files on Windows Media Player?

I have Windows 7 and Windows Media Player 12 (I think it's the x86 not the x86-64 version but I'm not sure -- how can I be sure?) and I want a way to play FLAC files in it. I want a way to do it ...
7
votes
4answers
29k views

Windows 7 volume On Screen Display?

I just upgraded my PC to Windows 7. I'd like to get back the on screen display (osd) for volume. With XP I used to see a horizontal band of green bars on the screen that showed the volume level when I ...
7
votes
3answers
13k views

Windows not remembering default audio device?

I prefer the audio output on my computer to use the standard audio jack output due to volume issues. But I am using a monitor with HDMI. I have chosen to set the default audio device to be "Speakers" ...
7
votes
3answers
6k views

How can I record sound from the windows command line?

Is there an application capable of recording sound that I can run from the command line on XP? Ideally I'd start it with one command and stop it with another. Or I could specify a duration with the ...
7
votes
2answers
82k views

How do I get Realtek HD Audio 5.1 working on Windows 7?

I have problem with Realtek 5.1 driver for Windows 7 x64. I've installed newest drivers for Realtek HD Audio, but 5.1 still doesn't work, the only thing that works is front stereo. However, when I ...
7
votes
5answers
4k views

Synced audio ouput on multiple machines? VLC? hardware solutions?

I'm wondering if there is any software or hardware solutions to synced audio or audio and video across multiple computers or devices on a network. I've seen Sonos, and it might be a good solution, ...
7
votes
5answers
19k views

Ubuntu: how to get audio to work in both Spotify (under Wine) and Flash (in Firefox)?

I'm running Spotify on Linux using Wine. Sound worked great (even though the sound test in winecfg failed!), until I installed alsa-oss package yesterday to get Flash sound working in Firefox. Now ...
7
votes
2answers
3k views

Good Text-to-Speech solution for Windows [closed]

I am running Windows 7 and I know it has the ability to read me text in my applications, but I am looking for a good utility to save chunks of text as a wav file or mp3. It may already be built into ...
7
votes
3answers
19k views

How to send VLC Player audio to headphones rather than PC speaker?

Similar to this question, except I'm on Windows 7. That question also has no accepted answer, and the answer doesn't work for me. I've tried all the different "Output Module" settings in the Audio ...
7
votes
5answers
44k views

Plugging in headphones does not mute speakers

My speakers are working even when I plug in my headphone to the front jacks. So I hear sounds from both headphones and speakers. This is quite annoying. How could I fix this? What could cause this ...
7
votes
1answer
26k views

How to play a video with a different audio track?

I want to connect the output of my laptop to a projector and beam a movie on the wall. The movie has video and audio, but I would like to be able to play different audio tracks while the video is ...
7
votes
3answers
7k views

Add an audio track to an existing MPEG movie (using MEncoder?)

I have an existing MPG (MPEG-1) video file. The video has no sound. I have an audio track (currently in MP3 format, but I could record it in AC3 or some other required format if that's what it will ...
7
votes
1answer
3k views

How to replace an audio stream in a video file with multiple audio streams?

I want to replace the second audio stream (0:2) in a video file that has two audio streams and give it a label if possible. How would I go about this? All the ffmpeg commands I found won't let me keep ...
7
votes
1answer
9k views

Is it possible to mute your computer through the command-line interface? [duplicate]

Currently, I can press the mute button on my keyboard, making my sound turn off. Is it possible to do this through cmd.exe so that I can run it with other things I have in that program?
7
votes
2answers
37k views

How can I set my headphones to mono in Windows 7? [duplicate]

I have this series of lectures on YouTube: http://www.youtube.com/watch?feature=player_embedded&v=NxCUVltVoZ8 … which I hear using headphones, but only the left side is working, and it's ...
7
votes
3answers
2k views

Set device for program in PulseAudio?

In computer I have 2 sound devices. When I run some program (let's say Skype) I can (using "pavucontrol" -> "PulseAudio Volume Control") setup so that this application will use given device for ...
7
votes
1answer
77 views

Quickly change audio device in KDE

I recently switched to OpenSUSE (with KDE) from Windows, and I'm still going through the learning curve. I switch fairly frequently between using my headphones with built-in microphone, and using my ...
7
votes
2answers
359 views

Mixing stereo audio signal into one headphone can. For computer games [closed]

Hello I'm deaf in one ear but I love to play competitive FPS pc games. The problem is I can't pinpoint where people are in the game. Which makes it hard to shoot them in the face before they shoot me ...
7
votes
2answers
7k views

Playback Identical Audio to Multiple Devices

Facts: I use Windows 7 I have an ASUS mobo w/realtek built in audio w/front & rear jacks. I have a Logitech USB headset w/microphone. I have ?20? sets of headphones. The Realtek HD Audio manager ...
7
votes
2answers
10k views

How to increase the volume in an m4a file?

I have an m4a file. When listening to it on my iPod Touch, the volume is too low, even when I turn it all the way up. I need to increase the volume in the file so that I can hear what is being said. ...
7
votes
3answers
7k views

Speech to text software (audio transcribing) for mac [closed]

What is the best speech to text software for mac? I have an hours worth of audio that I need to transcribe, and I'd really like to not have to do it manually :-). I prefer free options and I like ...
7
votes
2answers
1k views

How to kill volume when headphones pulled out

I often use headphones in order to listen to music in work time. However my chair tends to occasionally have the tendency to yank the headphone cable from my laptop. Now with my Android phone this ...
7
votes
4answers
2k views

Search audio file for pattern?

I want to split a very large audio file at certain points. At certain points a radio announcer comes on and says something like “deux radio” and it always sounds exactly the same (it’s a recorded ...
7
votes
3answers
6k views

How can I play my MP3 files through my stereo system?

Here's the situation. Like many others I have my entire CD collection ripped to my PC, along side other music I've acquired through iTunes or Amazon MP3. Also like many others the speakers at my PC ...
7
votes
1answer
12k views

How can I play .ram audio files without installing the Real Audio Player?

I want to listen to an audio file on this BBC French language learning site. However, the problem is that the audio file is a .ram file and from experience I don't want to install the Real Audio ...
7
votes
5answers
7k views

Cap maximum volume on Windows XP

Is there a way to cap the maximum volume on a Windows XP machine? I would like to regulate the volume so even if the user adjusts to the loudest volume, it will only be as loud as I want it to be.
7
votes
1answer
3k views

How to tell what is using an audio stream?

I've noticed that my computer doesn't want to stay in standby or go to standby after x minutes (as set in my Power Options). Running powercfg -requests tells me that my audio driver is keeping my ...
7
votes
1answer
4k views

Boost output volume past the maximum on OS X

The max volume on my iMac is way too low. I can barely hear videos in some online videos for example. I know the volume can go louder though — depending on the audio source the iMac can be very ...
7
votes
2answers
4k views

How to restart audio without rebooting (USB soundcard) - the nasty case

I have a very similar problem to this: Is there a way to restart audio without restarting windows 7 computer? I've got a USB external sound card (Line6 UX1, the older one), the OS is Windows 7 x64. ...
7
votes
2answers
1k views

Is there a way to play iTunes U files at 2x speed?

I'd like to keep my iTunes U audio files organized in the iTunes U category in iTunes; however, I can't seem to do that AND find a way to open the option to play at variable speeds for these audio ...
7
votes
8answers
6k views

How do I voice-chat with my friend on PC, sharing my screen and game audio without mixing in their voice?

I consider myself a tech-savvy person, but this audio-related problem I don't know how to solve. Imagine the following situation: You're chatting with a friend using Skype to show them what's on your ...
7
votes
4answers
4k views

Installing a fake microphone on Windows Server

My application, that is running on Windows Server (which is an instance on Amazon EC2) requires Skype to be able to make phone calls. The server, of course, does not have a microphone installed and I ...
6
votes
5answers
11k views

Software bass boost

I'm wondering, does anyone know why software bass boost solutions (like equalizers in various media players or that come with sound card) are really awful? I mean, you can boost max. 3-4dB without ...
6
votes
8answers
20k views

How to disable Windows system sounds - permanently - but not application sound

I prefer the sound scheme of Windows 7 HP to be set to "No Sounds" ALL the time. The problem is, when I switch themes, the themes switch sound schemes also. I know I can go in and disable/change to ...
6
votes
4answers
11k views

Can I increase the sound volume above 100% in Linux?

I am running KDE 4.6 in Debian Testing. Is there a way to increase the sound (i.e. more than the standard 100%)? The current settings with my speakers seem a bit too quiet in some cases. I found a ...
6
votes
4answers
14k views

What can I do to enhance MacBook Pro internal mic sound quality in iMovie?

After using MacBook for two years, I bought 17'' MacBook Pro. I'm pretty happy with it, performance and all, but I also was going to record some music videos for YouTube. I play guitar and sing. ...
6
votes
1answer
18k views

Change Windows sound volume via the command line

Is it possible to change the volume in Windows XP via the command line?
6
votes
4answers
21k views

VLC volume only to 200%?

According to this comment it seems that VLC could boost the audio volume up to 800% in the past versions. Today I installed VLC multimedia player version 2.0.5 and it is capable only to boost up to ...
6
votes
1answer
3k views

How do I replace the audio in an MP4 file without re-encoding?

I've got a video in an MP4 container that I would like to replace the audio track in (not add another audio stream to, nor convert the audio format of). Someone elsewhere online suggested to use ...
6
votes
2answers
4k views

Disable Sound Effects in OSX Lion

How can I disable that annoying buzzer sound in OSX Lion that I get when, for example, I'm at the terminal and press delete on an empty line? I tried to modify the sound settings by unchecking "Play ...
6
votes
5answers
3k views

How do I stop VLC from stealing my volume buttons

when I press the volume buttons on my laptop, usually the system volume is changed. However, when I do this with VLC it "steals" the presses and adjusts it's own "volume" instead. The system volume ...