I am working in a project where my task deals with speech/audio/voice comparison. This project is used for judging the winner in the competitions(mimicry). Practically I need to capture the user's ...

There is a previously recorded sound file containing user's voice. What I need to do is apply some sound filter to change the voice and after that be able to save and play modified version. AudioK...

I want to build something similar to Tunatic or Midomi (try them out if you're not sure what they do) and I'm wondering what algorithms I'd have to use; The idea I have about the workings of such a...

I am interested in determining the musical key of an audio sample. How would (or could) an algorithm go about trying to approximate the key of a musical audio sample? Antares Autotune and Melodyne...

I need to make an Android app that can recognize certain sound files created by me, and do an action on recognition. So something similar to Shazam/Soundhound, but with my own sound files. I...

I've got a number of questions this time, although they all relate to the same problem: I wanted to build a rudimentary sonar in Android, and have no clue as to how possible it is to do such a thin...

I have a wave file in 16bit PCM form. I've got the raw data in a byte[] and a method for extracting samples, and I need them in float format, i.e. a float[] to do a Fourier Transform. Here's my cod...

I want to develop an app for detecting wind according the audio stream. I need some expert thoughts here, just to give me guide lines or some links, I know this is not easy task but I am plan...

I am trying to extract amplitude information from a sound loaded from a URL using the Web Audio API instantaneously (not in real time), which will likely require the OfflineAudioContext. I am expec...

There is precious little documentation on AVAudioMix and MTAudioProcessingTap, which allow processing to be applied to the audio tracks (PCM access) of media assets in AVFoundation (on iOS). This a...

I want to add an audio.mp3 soundtrack to a soundless video.mp4 file using a bash script, what is the correct syntax of the "cvlc" "ffmpeg" command line ? I've recorded the video with VLC and --no-...

I want to process audio online/live where I constantly read audio samples from an audio file, process these (e.g. apply some effect), and forward the processed samples to an audio output device lik...

I am trying to measure the audio path from speaker to microphone on two different phones, an htc Wildfire S running Android 2.3.5, and an htc One X running Android 4.0.3. Using Eclipse, I coded an ...

What do I need to do in order to process every file type accepted by mutagen, .ogg, .apev2, .wma, flac, mp4, and asf? (I excluded mp3 because it has the most documentation on it) I'd appreciated ...

Do you know of alive attempts at audio synthesis / signal processing in Haskell ? Either for live performance or just for offline processing ? I am not looking for libraries relying on an external ...

I want to compare 2 audio files programmatically. For example: I have a sound file in my iPhone app, and then I record another one. I want to check if the existing sound matches the recorded sound ...

I've added FftPitchDetector.cs into my project, but I'm not sure how to use it. My code: private void sourceStream_DataAvailable(object sender, NAudio.Wave.WaveInEventArgs e) { if (waveWriter ...

I writing small program which need to detect sound level and write it if level higher than set in settings, i done sound capturing via portaudio, compressing via libvorbis, but one part of program ...

Requirement Android open a .wav file in sd card, play it , add some effect (like echo, pitch shift etc), save the file with effect. Simple :( What I know I can open and play file using Soundpoo...

I am working on a android audio project which requires BPM tracking. I decided that writing my own would not be a good idea and after looking around, I found a few libraries that does BPM tracking ...

as a software engineer I am facing with some difficulties while working on a signal processing problem. I don't have much experience in this area. What I try to do is to sample the environmental s...

I'm trying to make a simple "virtual scratcher" but I don't know the theory behind it. Since I've found nothing useful on google I'm asking it here: What happen when I scratch (move the track for...

I've been working with FFT, and I'm currently trying to get a sound waveform from a file with FFT, (modify it eventually), but then output that modified waveform back to a file. I've gotten the FFT...

I don't want sound-to-text software. What I need is the following: I'll record multiple (say 50+) audio streams (recordings of radio stations) from that recordings, I'll mark interesting audio cl...

I just want to know if there is any build in libraries or external libraries in Java or C# that allow me to take an audio file and parse it and extract the text from it. I need to make an applicat...