wav

I have WAV data that I'd like to convert to MP3 on the fly with a PHP script. The WAV file originates with the script, so it does not start out as a file. I can run something like this: exec( "lame --cbr -b 32k in.wav out.mp3" ); But this will require that I first write in.wav to disk, read out.mp3 from disk, and then clean up when I'm finished. I'd prefer not to do that. Instead, I have the wav file stored in $wav, and I'd like to run this through LAME such that the outputted data is then stored in $mp3. I've seen references to an FFMPEG PHP library, but I'd prefer to avoid having to install

I'm currently stumped . I've been looking around and experimenting with audio comparison. I've found quite a bit of material, and a ton of references to different libraries and methods to do it. As of now I've taken Audacity and exported a 3min wav file called "long.wav" and then split the first 30seconds of that into a file called "short.wav". I figured somewhere along the line I could visually log (log.txt) the data through java for each and should be able to see at least some visual similarities among the values.... here's some code Main method: int totalFramesRead = 0; File fileIn = new

I recording sound from Microphone in Windows Phone device. Using Xna.Framework.Audio.Microphone I store the sound in MemoryStream . I can save it to PCM format. However It will be much better to convert it to mp3 file. If converting to mp3 is impossible then maybe somebody at least knows how to convert it to wav. Thanks for your answers. Here is a brief example I created showing how to save wp7 recorded audio as a wav stream: http://damianblog.com/2011/02/07/storing-wp7-recorded-audio-as-wav-format-streams/ Here's a great thread which answers this question: http://social.msdn.microsoft.com

I would like to use markers in .wav files. It seems to be supported by aifc module with getmarkers() : http://docs.python.org/2/library/aifc.html#aifc.aifc.getmarkers (for .aiff files), but not for wave module ( http://docs.python.org/2/library/wave.html?highlight=wave#wave.Wave_read.getmarkers ). How could we read markers of .wav files ? Edit : here is an updated version of scipy.io.wavfile that adds many things (24 bit .wav files support for read/write, cue markers, cue markers labels, and some other metadata like pitch (if defined), etc.): wavfile.py (enhanced) Feel free to share it! I

I have been working on a VoIP Application in C sharp language. The purpose of the project is VoIP Call Recording. It uses g729 Codec. I can extract the voice part from RTP payload. How to convert this Byte array to .wav format? Please help me. You can try to use ffmpeg.exe and work with it via command line 来源： https://stackoverflow.com/questions/13468240/how-to-convert-g729-encoded-byte-array-to-wav-in-c

I have read samples out of a wave file using the wave module, but it gives the samples as a string, it's out of wave so it's little endian (for example, \x00 ). What is the easiest way to convert this into a python integer, or a numpy.int16 type? (It will eventually become a numpy.int16, so going directly there is fine). Code needs to work on little endian and big endian processors. The struct module converts packed data to Python values, and vice-versa. >>> import struct >>> struct.unpack("<h", "\x00\x05") (1280,) >>> struct.unpack("<h", "\x00\x06") (1536,) >>> struct.unpack("<h", "\x01\x06")

This question is a followup to a previous question , that was resolved thanks to @thejh. I'm trying to convert text to audio and serve the data to the client as 'chunked' data. So far my headers look like so: res.writeHead(200, { 'Content-Type': 'audio/wav', // I tried 'audio/x-wav' as well 'Transfer-Encoding': 'chunked' }); And then I'm converting snippets of text to audio in a queue (which I get back as base64 encoded data), and serving them like so: var src = Base64Audio.replace("data:audio/x-wav;base64,",""); var binAudio = new Buffer( src, 'base64'); res.write(binAudio); All the

i would like to record any sounds produced in my soundcard. please help, where i can get a freeware component or commercial(trial). delphi7/2009 I have very good experience with the BASS audio library API. Here is a forum thread with C# example , but since the BASS API is procedural and there is a good Delphi API interface, it translates pretty OK. --jeroen http://blogs.msdn.com/b/matthew_van_eerde/archive/2008/12/16/sample-wasapi-loopback-capture-record-what-you-hear.aspx might help try http://sourceforge.net/projects/delphiasiovst/ . there is a component to communicate with the ASIO driver.