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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6
votes
5answers
10k 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
5answers
18k 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 ...
6
votes
6answers
12k views

How to decode AAC (.m4a) audio files into WAV?

How would you convert (decode) AAC files into WAV format? (Or, if you prefer, how to decode & re-encode them into MP3 or Ogg Vorbis? But WAV is sufficient as I already have good tools for WAV ➔ ...
6
votes
4answers
2k 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 ...
6
votes
5answers
61k views

How to output microphone directly to speakers?

I want my microphone to directly output to my laptop's speakers. I'm able to do something along these lines by recording then playing, but I want to do it live. Any suggestions how to do this?
6
votes
1answer
15k views

Change Windows XP sound volume via the command line

Is it possible to change the volume in Windows XP via the command line?
6
votes
4answers
15k 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
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 ...
6
votes
5answers
29k views

How can I configure dual headphones under Windows 7?

Some laptops - in particular my Dell Studio XPS - have two headphone ports. Under Windows 7 currently the last pair of headphones plugged in begins to accept the output. Is there something special ...
6
votes
1answer
181 views

Audio capture tool

I'm looking for a free audio tool for capturing the audio that's playing on my computer to a wav/mp3, etc. I've been messing around with http://lab.andre-michelle.com/tonematrix and would like to ...
6
votes
4answers
1k views

Is there a way to raise/lower the volume in Linux without using a graphical tool?

Is there a way to raise/lower ALSA's volume without using a graphical tool? I am currently using MPD along with MPC mapped to hotkeys to change the volume, but I recently switched music players and I ...
6
votes
2answers
3k views

How to encode audio with Opus codec?

The Opus audio codec looks like the best thing ever for compressing audio. It has recently become supported in the latest ffmpeg and VLC players. However, there is no documentation I can find on how ...
6
votes
5answers
5k views

Join Audio and Image -> Output as Video using FFmpeg

I have 1 image (jpg) and 1 audio file (MP3) and I would like to output this as a video file (say AVI for example). Does anyone know how to use FFMPEG to join the two? I'd like to show the image for ...
6
votes
8answers
35k 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 ...
6
votes
4answers
724 views

How can I find the program making a harmonica sound?

A friend has a Windows XP SP3 machine that plays a harmonica sound for about 5 seconds throughout the day at what seems to be random intervals (every couple hours). My question is how can I find the ...
6
votes
5answers
23k views

How to get volume hotkeys in W7?

Windows 7 implemented new Win+X hotkeys. These took over the hotkeys used by Sound Volume Hotkeys http://www.softarium.com/soundvolumehotkeys, which I used to use in XP. I need software control of my ...
6
votes
2answers
72k 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 ...
6
votes
1answer
3k 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.
6
votes
4answers
6k views

Poor Bluetooth audio quality and delays on Dell Latitude with Windows 7

I have been trying to use an LG Tone (HBS700) Bluetooth headset on Windows 7 with mixed results. The PC is a Dell Latitude E6320, and the Bluetooth adapter is the Dell Wireless 375 Bluetooth module ...
6
votes
3answers
7k 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" ...
6
votes
2answers
3k views

How to downmix stereo output to mono on Mac OS X

Let's just open and close this: Is there a built in way to downmix all stereo output to mono on Mac OS X?
6
votes
2answers
1k views

How can I split the 5.1 audio channels from an AC3 file into individuals streams (preferably on a Mac)?

I have a file that I've pulled from a DVD that is apparently in AC3 5.1 format. The extension is .AC3 and it opens an plays in QuickTime, VLC etc. What I want is each individual channel in a separate ...
6
votes
3answers
7k views

Native audio capture for Windows 7

The traditional way to capture audio is to pick a "Stereo Mix" or "What U Hear" recording device and record in a program like Sound Recorder or Audacity. However that relies on your sound card ...
6
votes
2answers
3k views

Previewing audio files in Windows Explorer

Is there any program that can play audio files by right click/mouse hover directly in Windows Explorer? *Update:*Please introduce other apps (if any).
6
votes
5answers
27k views

How can I convert already recorded speech to text? [closed]

I am looking for a software that would allow me to input an audio file (.wav .mp3...) and output the text of the audio file. Does such software exist? I have only found software that converts (live) ...
6
votes
2answers
27k 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 ...
6
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 ...
6
votes
1answer
1k views

Prevent applications to control master volume on Linux

Whenever I change the volume in VLC, Rhythmbox, or a video on YouTube, it change the master volume, i.e. the system volume. How can I prevent this from happening? I'm running Debian 7.0.0 (wheezy) ...
6
votes
3answers
3k views

Volume control for Windows 7 not fine grained enough

I have a 5.1 surround system that doesn't have its own volume control, meaning it relies entirely upon the computer to modulate that. The speakers always give maximum output. This works great in Linux ...
6
votes
2answers
3k views

Centralized PulseAudio setup

I want to do a setup, so that all my computers and TV use one audio system. Like this: Where media server is connected to acoustics and TV is connected through sound-card input and other systems ...
6
votes
1answer
1k views

Sharing soundcard to network

Let's suppose I have a laptop (L) and desktop PC (D), both with Windows 7 onboard. It is SB X-Fi extreme soundcard with rather good 5.1 home theater connected. But it is not comfortable to watch ...
6
votes
4answers
2k views

Combine Multiple Audio Files into a single higher-quality audio File

BACKGROUND My team gave a demo to a large audience - we recorded the audio of the demo in multiple locations in the room (3) the audio was recorded using cheap laptop microphones I was not involved ...
6
votes
2answers
2k views

Real Time Sound Leveler

Lately I've been annoyed with Hulu as the commercials are significantly louder than the actual show. This has caused me to wonder if there existed any application either generic or specific to Hulu or ...
6
votes
1answer
14k views

How do I listen to my microphone through my speakers in Windows 7?

I've looked around for the answer, and before you say it, I've used the "Listen to this device" feature built into Windows. The issue is that I have a USB microphone and there is a second delay before ...
6
votes
2answers
109 views

Run 10 sets of headphones from a pc via 10 separate channels

We have a PC application that runs on Windows 7 platform that is designed to play sound to up to 10 different MP3's to up to 10 separate sound cards (ie. 10 different inputs playing to 10 different ...
6
votes
2answers
1k views

Audio issues during KVM switch

I currently have two computers connected to a KVM. One of the computers is connected to a spare display. Both computers are connected to an audio mixer. The KVM has DVI for video, and USB for the ...
6
votes
1answer
19k views

How to amplify the audio in a video file? [duplicate]

Possible Duplicate: How to increase the volume for an avi file What is the simplest way I can amplify the audio in a video file (.avi, .mpg, .flv, etc)? I transfer these videos and watch ...
6
votes
4answers
3k views

Bluetooth headphones: great quality on iPhone, poor quality on notebook and PC

I recently got a new pair of Sony MDR-1RBT Bluetooth headphones. On my iPhone 4, they sound fantastic. But when I try to use them on my Windows PC or 2010 Macbook Pro, the sound quality drops ...
6
votes
2answers
3k views

How can I prevent volume changes by the playback manager?

The problem is that starting a Skype call in the Modern UI app lowers the volume of anything else I have running, including other apps that are running in the foreground alongside it. I already know ...
6
votes
2answers
4k views

Normalize volume of all my computer hardware and software?

For my computer, there are a dozen different ways to adjust the volume in various ways and on various levels using both software and hardware. The following things have individual volume controls: ...
6
votes
1answer
1k views

Can the volume change when I plug in headphones?

I want the volume to change when I plug in headphones, because my netbook's speakers are really quiet but the earbuds I have are really loud when I plug them in. I'm running Ubuntu Lucid Netbook ...
6
votes
3answers
1k views

How do I make my “Fn + Volume Up/Down” keys adjust my headphone channel in Ubuntu Karmic?

I solved this problem in Jaunty, but the Sound preferences menu has extensively changed in Karmic. What is the new way to do this? Original question: I always have my master channel muted, and I ...
6
votes
2answers
398 views

Why would my PC no longer be able to play audio files that it was able to play yesterday?

I'm having a very specific problem, with no idea as to what may be causing the issue. Here is a description of what I'm seeing: I have a CD of PDF/Audio files that are generated by a third party. Up ...
6
votes
1answer
2k views

Per-application sound balance in Windows 7

I like the new volume mixer in Windows 7, but it lacks balance controls. I know of the master balance control in the device properties, but what I really want is control of stereo balance per ...
6
votes
1answer
155 views

Is there anything like Microsoft Sync for the home or media center computer?

I just returned from a business trip where my rental car (A free upgrade to a Lincoln MKZ!) had the Microsoft Sync system built into it. You know, from the commercial: 'Play artist, Right On ...
6
votes
1answer
14k views

How to disable MS GS WAVETABLE synth? or what is occuping it?

I have a small(?) issue program. A friend of mine has a computer with the following specs: Creative XtremeMusic soundcard (latest x-fi drivers, the complete package) USB Midimate 2 (usb midi ...
5
votes
4answers
2k views

Is it safe to keep speakers behind a monitor

Currently my Computer is kept on a small table. The Speakers are kept behind my monitor (LCD). So is it safe to play a song or something on high volume (with high bass) ? Will it affect my LCD ? My ...
5
votes
7answers
2k views

How can I normalize the sound levels in several different audio/MP3 files?

I have a given set of MP3 audio files of varying audio levels. I would like to know how I can automatically normalize all of these files, so the volume is amplified/raised on the quieter files, and ...
5
votes
7answers
16k 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 ...
5
votes
2answers
8k views

Tool to view video/audio file information [closed]

What is the best tool to obtain the media/codec details of any video/audio file? I use Windows, but feel free to suggest for your favorite OS too.