I want to play sound in program (e.g. in c++) without file, from BASE64 for example. But I didn't find out a lib that allow do it. OpenAL, BASS, Audiere require to pass filename. How can I play sound without filename?
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Using echo hiding or phase coding is it possible to encode a file wav file, play it, and decode the recorded version of the file without losing info? If its not possible with this techniques, are there other other ones that you would recommend to be able to do so?
I have a project in NodeJs which I am building a music in a midi file, using MidiWriter library. This library has a set of instrument but I want to generate the baqueta sound.
I want to play this sticks sound to indicate the compass of the melody.
I try to download a mp3 file with this sound and put together, spliced with a delay, but I don't have good results.
Someone know a library in node to play this kind of sound?
Thanks! :)
Do you know how to convert a .m4p file (DRM quicktime) to mp3 or ogg without using expensive software (AKA with scripting) and possibly on Linux?
There is no good method for decrypting encrypted DRM quicktime files in linux. You can probably play them with quicktime via wine (just a guess), but to save them to a different format would probably be difficult. (though thinking out loud, I wonder if it be possible to have an alsa plugin that dumps every stream of audio it gets to a file as well?)
I am looking for a way to automatically extract parts from audio files. Something like Imagemagick for audio files.
I only need to extract random parts of a fixed length from a large set of complete ogg-vorbis files. I easily know how to automatically interpret the output from a programm, so I would be able to write a small script if I had programs to do the following:
Get the length of the file
Extract parts of the given an offset in seconds and a length
Is there any program, which allows me to do this under linux? The files I am using are ogg vorbis files.
If there is a python library, which is able to do this, it would work as well.
You can use SoX (Sound eXchange) to do both.
I want to take a classical music piece in .mp3 (or other audio file if necessary) file and take the same music piece in *.midi file. then - I want to synchronize between them so as a result only the midi file would change and the timing of its beat would be synchronized with the .mp3. So lets say - if I would play them both on the same time they would play the same notes synchronizly.
How can I do so?
(I have cubase if the answer might be there...)
It's a tough task because general beat-tracking (follow tempo changes) hasn't yet been figured out.
There's at least one tool that does work though for matching an audio file to a midi file, assuming the audio file is almost identical to the midi file in terms of the score. But I can't remember it's named, never have used it. The place is to ask is the Music Information Retrieval community of scientists:
http://listes.ircam.fr/wws/info/music-ir
For manual mathcing, you can use modern DAW's like Logic, Pro Tools, etc, to help you with this by providing reasonably nice tools to build a detailed tempo-map of the audio file, and then the MIDI file would line right up with it, but it's a tedious task. You'll likely need tempo changes more often than every measure to get a nice alignment - it will be style-dependent.
You could use tools that already exist. For example, if you know the tempo of the mp3, then you could use this page to change the tempo on the midi file.