audio-processing Questions

4

Solved

My problem is related to pitch-shifting audio in Python. I have the current modules installed: numpy, scipy, pygame, and the scikits "samplerate" api. My goal is to take a stereo file and...
Wiburg asked 14/12, 2011 at 8:3

1

I'm trying to create a Guitar-Hero-like game (something like this) and I want to be able to analyze an audio file given by the user and create levels automatically, but I am not sure how to do that...
Herringbone asked 20/11, 2011 at 7:6

5

Solved

I'm working on processing the amplitude of a wav file and scaling it by some decimal factor. I'm trying to wrap my head around how to read and re-write the file in a memory-efficient way while also...
Delwin asked 16/3, 2010 at 19:35

1

Solved

I'm looking for a library or tool to decode FSK in wav files, e.g. caller id. Currently using the tools bundled with vpb-driver for Voicetronix hardware that is available via debian/ubuntu. ...
Amalbergas asked 15/9, 2010 at 2:43

3

Solved

I have implemented a rudimentary low-pass filter using a time based value. This is ok, but trying to find the correct time slice is guess work, and gives different results based on different input ...
Fustigate asked 12/11, 2010 at 7:33

1

Solved

I want to increase a volume on buffer with voice data. The point is I'm using DirectSound and I have one primary and one secondary buffer - all streams mixing is done by hand. In a voice chat all p...
Argilliferous asked 29/11, 2010 at 5:6

1

Solved

For anyone not familiar with Verizon's SongID program, it is a free application downloadable through Verizon's VCast network. It listens to a song for 10 seconds at any point during the song and th...
Poaceous asked 21/5, 2010 at 19:15

3

I'm an Electronics and Telecommunications student, next to my graduation. I'm gonna work on a project that involves my knowledge about DSP, music and audio in general. I allready know all the...
Heyday asked 8/3, 2010 at 6:15

1

I'm interested in making an OpenGL visualizer for MP3's as a pet project. I stumbled upon this youtube video which demonstrates someone showing off a visualizer being used in conjunction with Augm...
Rumal asked 5/2, 2010 at 20:35

4

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 ph...
Katharyn asked 25/1, 2009 at 17:18

6

Is it possible to write a program that can extract a melody/beat/rhythm provided by a specific instument in a wave (or other music format) file made up of multiple instruments? Which algorithms co...
Bohol asked 9/12, 2009 at 15:47

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