Top "Audio-processing" questions

Audio processing involves the study of mathematical and signal processing techniques to understand or alter the nature of audio signals.

Python NumPy - FFT and Inverse FFT?

So I've been working with FFT, and I'm currently trying to get a sound waveform from a file with FFT, (…

python audio numpy fft audio-processing
How can I Compare 2 Audio Files Programmatically?

I want to compare 2 audio files programmatically. For example: I have a sound file in my iPhone app, and then …

iphone ipad audio-processing
How can I get into a wav file to change the sample rate?

I have a wav file pulled up in MATLAB, and I can see it's sample rate. All I need to …

matlab signal-processing wav audio-processing sample-rate
Music Recognition and Signal Processing

I want to build something similar to Tunatic or Midomi (try them out if you're not sure what they do) …

php python audio signal-processing audio-processing
Python: Change Pitch of Audio File

this is my first post on stack. So far this site has been very helpful, but I am a novice …

python scipy pygame audio-processing
Detect beat and play (wav) file in a synchronised manner

I am trying my hands at Audio Processing in python with this Beat Detection algorithm. I have implemented the first (…

python audio-processing beat-detection
AVAudioPlayer rate

So I'm trying to play a sound file at a different rate in iOS 5.1.1, and am having absolutely no luck. …

ios avfoundation avaudioplayer avplayer audio-processing
Sound recognition API, SDK (Android)

I need to make an Android app that can recognize certain sound files created by me, and do an action …

android audio audio-processing
Correct way to Convert 16bit PCM Wave data to float

I have a wave file in 16bit PCM form. I've got the raw data in a byte[] and a method …

java android pcm audio-processing
Is there an algorithm to get the Scale and Key of a song from a series of notes?

I've got a series of MIDI notes stored in array in the form of MIDI note number. Is there an …

algorithm midi audio-processing