I've got many, many mp3 files that I would like to merge into a single file. I've used the command line method copy /b 1.mp3+2.mp3 3.mp3 but it's a pain when there's a lot of them and their namings are inconsistent. The time never seems to come out right either. ...
I'm trying to write a web-app that records WAV files (eg: from the user's microphone). I know Javascript alone can not do this, but I'm interested in the least proprietary method to augment my Javascript with. My targeted browsers are Firefox for PC and Mac (so no ActiveX). Please share your experiences with this. I gather it can be done...
What is the best solution for converting WAV files to WMA (and vice versa) in C#? I have actually implemented this once already using the Windows Media Encoder SDK, but having to distribute Windows Media Encoder with my application is cumbersome to say the least. The Windows Media Format SDK has large sections of the API marked as deprec...
Sample held in a buffer from DirectX. It's a sample of a note played and captured from an instrument. How do I analyse the frequency of the sample (like a guitar tuner does). I believe FFT's are involved, but I have no pointers to HOWTO's. ...
Hi. I have a problem (and have been having it for some time now) -- the new sound mixer stack in Vista features new cool things, but also re-invents the wheel. Many applications that used to use Volume Mixer on a Windows system to mix different voiced outputs into one input (for example Wave-out + Line-in --> Stereo Mix) have since stopp...
I'd like to write a simple C# application to monitor the line-in audio and give me the current (well, the rolling average) beats per minute. I've seen this gamedev article, and that was absolutely no help. I went through and tried to implement what he was doing but it just wasn't working. I know there have to be tons of solutions for t...
In the uncompressed situation I know I need to read the wav header, pull out the number of channels, bits, and sample rate and work it out from there: (channels) * (bits) * (samples/s) * (seconds) = (filesize) Is there a simpler way - a free library, or something in the .net framework perhaps? How would I do this if the .wav file is co...
I need to find the frequency of a sample, stored (in vb) as an array of byte. Sample is a sine wave, known frequency, so I can check), but the numbers are a bit odd, and my maths-foo is weak. Full range of values 0-255. 99% of numbers are in range 235 to 245, but there are some outliers down to 0 and 1, and up to 255 in the remaining 1%...
How do I go about programmatically creating audio streams using Cocoa on the Mac. To make, say a white-noise generator using core frameworks on Mac OSX in Cocoa apps? ...
Hi, I've got a c# application that plays simple wav files through directsound. With the test data I had, the code worked fine. However when I used real-world data, it produced a very unhelpful error on creation of the secondary buffer: "ArgumentException: Value does not fall within the expected range." The test wavs had a 512kbps bit...
I would like to repeatedly capture snippets of audio on a Nokia mobile phone with a Java Midlet. My current experience is that using the code in Sun's documentation (see: http://java.sun.com/javame/reference/apis/jsr135/javax/microedition/media/control/RecordControl.html) and wrapping this in a "while(true)" loop works, but the applicati...
What version control systems would be useful or have extra features to support projects that are mainly binary files like mp3, wav, or proprietary application-specific file types? ...
I'm looking at writing a little drum machine in Python for fun. I've googled some and found the python pages on music and basic audio as well as a StackOverflow question on generating audio files, but what I'm looking for is a decent library for music creation. Has anyone on here tried to do something like this before? If so, what was...
Hello, How would it be possible to capture the audio programmatically? I am implementing an application that streams in real time the desktop on the network. The video part is finished. I need to implement the audio part. I need a way to get PCM data from the sound card to feed to my encoder (implemented using Windows Media Format). I...
Hello world. This question borders between the world of the audio designer and the programmer. While this question might have to be partially answered by that domain of an audio designer, it is sure a problem for the programmer. In our project, we want to loop a sound (background music) while the game timer is greater than one minute le...
Having just witnessed Sound Load technology on the Nintendo DS game Bangai-O Spritis. I was curious as to how this technology works? Does anyone have any links, documentation or sample code on implementing such a feature, that would allow the state of an application to be saved and loaded via audio? ...
Trying to understand an fft (Fast Fourier Transform) routine I'm using (stealing)(recycling) Input is an array of 512 data points which are a sample waveform. Test data is generated into this array. fft transforms this array into frequency domain. Trying to understand relationship between freq, period, sample rate and position in fft a...
For a project we're currently working on, we need a library of spoken words in many different languages. Two options seem possible: text-to-speech or "real" recordings by native speakers. As the quality is important to us, we're thinking about going the latter path. In order to create a prototype for our application, we're looking fo...
Do you know of any .NET library which can decode several types of audio files? Ideally, it should be platform agnostic, so it can be used with .NET and Mono - on Windows and *NIX. I already tortured Google searching for a library which meets my needs, but unfortunately I could not find anything. So before writing a lot of wrapper classe...
Hey I'm writing a windows forms application which is supposed to play a three sound files and at the end of each sound file it's to change the source of an image. I can get it to play the sounds using System.Media.SoundPlayer. However it seems to play the sound in a different thread, continuing on. The net effect of this is that only t...