Tagged Questions

This tag is for questions related to the "Waveform Audio File Format", WAVE, or wav for short.

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0
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0answers
7 views

.WAV audio file converstion issue with oggenc

I have a problem converting WAV files to OGG using oggenc. I am always getting this exception Warning: INVALID format chunk in wav header. Trying to read anyway (may not work)... ERROR: Wav file is ...
0
votes
0answers
7 views

OSX / iOS: Reading a .WAV into a float buffer

I've got a ~1s mono .WAV on disk. I would like my OSX (and later iOS) app to read it into a float buffer. What's the simplest way to achieve this?
0
votes
1answer
24 views

Audio speed changes on converting WAV to MP3

I create a WAV (PCM) to MP3 converter. But the output is too fast. This is the code, that converts the encoding. FILE *pcm = fopen(in_path, "rb"); FILE *mp3 = fopen(out_path, "wb"); int read, ...
-2
votes
0answers
17 views

How to add multiple .wav or .mp3 files to Java program?

I am writing a program mimicking the game show "Don't Forget the Lyrics" where a song will play once a button is pressed and the song will play. I will need to add approximately 15 music clips that I ...
0
votes
1answer
47 views

Reduce the volume of a Wav audio file using C

I am writing a C program for editing a Wav audio file. I have loaded all file datas in an array of unsigned integer values (UINT16_T). Now, i would like to reduce the volume of the file. I thought it ...
-1
votes
0answers
27 views

Recording in .wav Format on Eclipse

I'm trying to create an application that will record in the .wav format. However, Eclipse doesn't support this format automatically, so I've been trying to find special code that could do so. I found ...
1
vote
1answer
52 views

Python WAV “TypeError: data type not understood” error

I've had a problem reading a .wav file using Python. I want to read the amplitude and sampling rate of the file. I tried reading the file using the following code: import os folder = os.getcwd() + ...
1
vote
1answer
37 views

Web Audio API - record to MP3?

I am asking because I couldn't find the answer anywhere. I have successfully implemented RecorderJS in order to record microphone input in JS. However, the recorded file is WAV which results in large ...
1
vote
2answers
24 views

Downsample wav RIFF file using python

I'm trying to downsample a 16khz wav file to 8khz in python 2.6. The file has RIFF header and is in a mulaw format and must remain in that format. I've glanced at some things in this big list of ...
-1
votes
0answers
15 views

anyone had success with OpenFP? [closed]

http://sourceforge.net/projects/open-fp/ Built and ran openfp - a sound fingerprinting project available in many places. Includes: openfp_extract (calls ffmpeg) _server and _match. Hours today ...
0
votes
1answer
38 views

How to remove the noise from a wav file with a IIR Eliptical filter

I have to remove the noise from a wav music file with matlab. I know that I have to use the ellipord and ellip functions. First I read the wav file:[x,Fs]=wavread('file.wav'); Then I do a ...
0
votes
0answers
29 views

Send Recorded Audio File to Web Server With PHP

I'm using Recorder.js which allows users to create their own sound recording from their microphone input. I'm new to this so I'm using this site as a point of reference. This code creates a ...
0
votes
1answer
76 views

How to remove noise from .wav file after mixed?

I have read the manual from this link but still can not solve your problems. After mix two wav files using code I get a wav file (music.wav on sdcard) but play it as noise. I really do not know how ...
0
votes
1answer
56 views

Perl External Command - unable to open file

I am using backtick to execute external program - wavpack (compress from .wav to .wv). $file = "song.wav"; //it is in the same directory $output = `wavpack $file`; The program wavpack managed to ...
0
votes
2answers
89 views

How to compare strings “partly” ( to return the number of characters that were matched)?

Program works with .wave file. The code below is a part of program that finds "data" subchunk. It writes all necessary chunks to the output file and then finds "data" (copyes next 4 bytes into char ...

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