audio

Bpm audio detection Library

I'm looking for a library that simplify tempo/bpm audio detection. Something similar to this http://adionsoft.net/bpm/ , but to use on *NIX machines. Any language, but preference goes to php, perl, python. ...

Mute Audio from Javascript?

I was sitting here wondering if it's possible to write a greasemonkey script that would detect sites like payperclick and mute the audio so the ad isn't heard. I realize that I could accomplish the same thing in a better fashion by simply removing the ad text through a greasemonkey script but for purposes of curiousity, I wondered if yo...

ACM - Audio Compression Manager

Can anyone explain how to use the Windows Audio Compression Manager (using VC++)? thanks And what areas do i need to study first before I start.. ...

SoX wav sound playback

I tried this: sox -u -r 11.025k -b 8 -c 1 infile.wav outfile.wav but the sound is garbled and unrecognizable when I play it. Help? ...

Flash loading external file freezes page -or- multiple simultaneous downloads

I've got a flash mp3 player on one of my web pages, streaming external audio. Check this site out as an example (no affiliation, just an example): http://www.1pixelout.net/code/audio-player-wordpress-plugin/ When it's a decent sized mp3, once I start playing the file, it takes a little time to buffer. While it's buffering, if I click o...

How do I convert speech to text?

How could I take MP3 and convert the speech to text? I've got some recorded notes from a conference and from meetings (there is a single voice on the recording, which is my voice). I thought it would be easier and intellectually interesting to convert to text using speech to text tools rather than simply transcribe by hand. I know there...

Audio file tagging (read/write) library?

TagLib seems like a good choice, but I don't use C++ and bindings for other languages are limited. Currently I use the ATL library, but it hasn't been maintained since 2005 and I'm having a hard time doing this myself. So I'm looking for another open source alternative that is actively developed. Do you know of one? ...

Given an audio stream, find when a door slams (sound pressure level calculation?)

Not unlike a clap detector ("Clap on! clap clap Clap off! clap clap Clap on, clap off, the Clapper! clap clap ") I need to detect when a door closes. This is in a vehicle, which is easier than a room or household door: Listen: http://ubasics.com/so/van_driver_door_closing.wav Look: It's sampling at 16bits 4khz, and I'd like to av...

Capture a Microphone Audio Stream Using .NET Framework

I need to capture the input stream from a microphone in my application, which is written in VB.NET. I need to be able to stream this data to a file or over HTTP and possibly encode it using LAME MP3. Can anybody help me get started with this? Thank you! ...

Lossy compressed format to raw PCM on iPhone

I want to start with an audio file of a modest filesize, and finish with an array of unsigned chars that can be loaded into OpenAL with alBufferData. My trouble is the steps that happen in the middle. I thought AAC would be the way to go, but according to Apple representative Rincewind (circa 12/08): Currently hardware assisted comp...

Is it possible to downsample an audio stream at runtime with Flash or FMS?

I'm no expert in audio, so if any of you folks are, I'd appreciate your insights on this. My client has a handful of MP3 podcasts stored at a relatively high bit rate, and I'd like to be able to serve those files to her users at "different" bit rates depending on that user's credentials. (For example, if you're an authenticated user, y...

Playing a sound notification using Google Web Toolkit

Is it possible to play a sound notification using Google Web Toolkit which will be translated to Javascript? Thanks. ...

Need media sharing web-app, control access by group

I am trying to find a good media sharing web app. Something that will let instructors upload audio or video files easily. And I need to let restrict access to the files to only the students in the class. I have tried PHPMotion, and it's great for the uploading and sharing part, but it's a way of sharing files with everyone. I need to...

Best free sources for UI audio samples - or best tool for creating them

Where can a developer find free, high-quality audio samples for use in an application? I'm specifically interested in sounds like you might expect when you have a new mail message, when a scheduled appointment is happening soon, or when your electronic device is fully charged. Things like a nice metallic beep with a smooth echo, or a s...

Which format has an audio stream before reaching the soundcard?

I want to manipulate an audio stream before it gets to the soundcard. So I wanna use the sAPOs from Microsoft to manipulate the audiostream in the audio engine (vista audio architecture). My basic question actually is which format the audio stream is in. I don't know but I think it is the WAVE format or the RIFF. Can anyone help me in ...

How to compare mp3 programmatically

I like to be able to compare mp3’s programmatically. The problem I don’t know by what. Header? Histogram? channels? Does anyone have experience with this subject? ...

Trim an MP3 Programatically

What is the best way to trim a mp3 file programatically. For example, say I want to get rid of the first 2 minutes or last 2 minutes or both. Is there a good way to do this from .NET? Or .NET calling out to a command line tool? Thanks. ...

Getting started with audio programming

I'm looking to build some compression interfaces for windows audio, and I was wondering if anybody might know of some tips/tricks? I'd like to build my own software equalizer that will function with the whole windows audio system, not just a particular program. I know this can be done - my sound card has one built in, but doesn't have en...

Streaming server required with JW Player?

Currently, a site I developed plays mp3 files directly in JW Player using the file attribute and public URLs to the mp3 file. This is now an issue with the client for legal reasons, and they now need to stream the audio files so that the users can't open up their cache and nab the files directly after downloading. The JW player site has...

iPhone UIWebView playing MP3. Dismissal protocol?

So I can't find any documentation on how to do this, maybe someone knows what's going on here. I'm in a UITableView (with a UINavigationController) in my application, and launching a UIWebView that loads an mp3 file on the internet by pushing the Web View's controller onto the navigation controller's stack. This works great, the file l...