I'm writing a c program to generate a sinusoidal wave that slowly ramps up frequency from f1 to f2 for a giving time interval. I have written this c program to ramp the frequency from 0 to 10 Hz b...

I'm developing a Telegram bot and I have a question about sendvoice API to send voice (audio) messages. I push a OGG file converting from a MP3 source file, using ffmpeg for conversion, with the c...

On my server I use Audiowaveform to generate JSON data from my audio files. On frontend I use Wavesurfer-JS to draw the waveform based on previous JSON data. The problem is that on page ready the...

I'm trying to generate a sine wave of a given frequency for a given duration and then write it into a .wav file. I'm using numpy's sin function and scipy's wavfile function. I'm getting a weird sou...

I am making one music application in android.In this music list coming from server side. I don'tknow how to show waveform of audio in android ? like in soundcloud website. I have attached image bel...

I reading song from iPod library using assetUrl (in code it named audioUrl) I can play it many ways, I can cut it, I can make some precessing with this but... I really don't understand what I gonna...

I'm looking for how to draw the sound waves according to music. I want waves like this image here is some discussion about displaying Waves from music WaveForm on IOS rendering a waveform on ...

I have followed a very good tutorial on udacity to explore the basis of audio applications with Swift. I would like to extend its current functionalities, starting with displaying the waveform of t...

I am using AVFoundation to record audio with the setting below. After recording successfully, I need to show the waveform of the recorded file to the user. Can anyone help me with this task? Here ...

I'm trying to convert a WAV file(PCM,48kHz, 4-Channel, 16 bit) into mono-channel WAV files. I tried splittiing the WAV file into 4 byte-arrays like this answer and created a WaveMemoryStream like ...

I am working on a music app and need to generate audio spectrum for my files. Like this one: So I tried using audiowaveform like this: audiowaveform -i music.mp3 --pixels-per-second 1 -o out.da...

I am trying to implement a low pass filter in Java. My requirement is very simple,I have to eliminate signals beyond a particular frequency (Single dimension). Looks like Butterworth filter would s...

Suppose one wanted to find the period of a given sinusoidal wave signal. From what I have read online, it appears that the two main approaches employ either fourier analysis or autocorrelation. I a...

Is there any audio/programming-related stack-exchange site? I'm trying to make a wave form in WinForms What algorithm should I use? For example, if I have 200 samples per pixel (vertical line), ...

I have just read a wav file with scipy and now I want to make the plot of the file using matplotlib, on the "y scale" I want to see the amplitude and over the "x scale" I want t...

I googled this issue for last 2 weeks and wasn't able to find an algorithm or solution. I have some short .wav file but it has MULAW compression and python doesn't seem to have function inside wave...

I've been going through documentation looking for an answer for this. I see that AudioKit can draw waveforms for in realtime as you record or playback, but I was wondering if you could load in a fi...

I'm trying to implement Python method that generates sine wave, which ramps up between two freq exponentially. Linear change was solved in [this question] with following Python code: from math imp...

I need to be able read the waveform produced by any arbitrary shape created in magnetic ink. How would it possible to simulate this programmatically? I'm not interested in OCR. As per Magnetic ink...

I want to find the offset between two arrays of timestamps. They could represent, let's say, the onset of beeps in two audio tracks. Note: There may be extra or missing onsets in either track. I ...

I have generated a simple waveform like the picture below with my code. But I want to give more gap between each line I want it to be like the soundcloud waves like the picutre below. Here is...

How can I play a sound based on waveform data that my .NET program is generating from user input and mathematical functions? By "waveform data" I mean SPL (sound pressure level) values in a fixed ...

does anyone know if is it possible to render an audio waveform from a video playing in a youtube player using Javascript? Thank you!

I'm trying to use AudioTrack to generate sine, square, and sawtooth waves. However, the audio this is creating doesn't sound like a pure sine wave, but like it has some kind of other wave overlayed...

I found that my smartphone (android 4.2.2) is not able to generate square waveforms (i need it to use the audio output as serial line for data transfer). At beginning i supposed it was my applicati...