audio-processing

Reading raw PCM samples from an MP3 file using QtMultimedia?

Is there a way to use QtMultimedia to access the PCM raw audio samples of MP3 files stored on a, say, Nokia N950 phone?[详细]

2023-03-31 00:01 分类：问答

Python find audio frequency and amplitude over time

Here is what I would like to do. I would like to find the audio frequency and amplitude of a .wav file at every say 1ms of that .wav file and save it into a file. I have graphed frequency vs amplitude[详细]

2023-03-26 05:02 分类：问答

.NET solution to create a slowed down playback rate MP3, with pitch preservation

I have a working solution partly in .NET that takes an MP3 file (vocal audio) and saves a version of the MP3 at a slowed playback rate, while preserving pitch. I have found a solution that does preser[详细]

2023-03-10 19:17 分类：问答

Parsing Through Wave File with BinaryReader

In .NET Assembly mscorlib System.IO namespace, I am using ReadInt16() method to loop through audio data bytes and dumping signed integer values into a text file. How does one interpret the two values[详细]

2023-03-05 18:12 分类：问答

iPhone AudioQueue - Reading incoming audio data to determine BPM

I\'m trying to determine Beats Per Minute (BPM) from the microphone using sound energy, I think I\'ve figured out the part determining BPM but having a little trouble obtaining the RAW data.[详细]

2023-03-03 19:15 分类：问答

Getting the amplitude(or rms voltage) of audio signal captured in C++ by wavin lib.?

I am working on a very basic robotics project, and wish to implement voice recognition in it. i know its a complex thing but i wish to do it for only 3 or 4 commands(or words).[详细]

2023-02-21 08:15 分类：问答

Steganography on audio/video with Python

I want to do message embedding in audio/video files using Python. Does anyone have informatio开发者_开发技巧n about some libraries I can use for bit manipulation in audio/video ?There is a list of aud[详细]

2023-02-16 03:40 分类：问答

Acoustic Audio Comparing Library

I need a software or a library which handles with audio comparison, but not using the tag\'s inside mp3 ,it should compare similarity or confidence between 2 audio Files, or if i cut a piece from an a[详细]

2023-02-08 19:05 分类：问答

Server Platform for Audio Processing

I\'m trying to build a server for processing audio from an i开发者_运维问答ncoming UDP connection. I need to be able to do things like change the frequency of the incoming stream (probably a .wav), th[详细]

2023-02-04 04:54 分类：问答

Modify volume gain on audio sample buffer

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 par[详细]

2023-01-28 11:17 分类：问答