Tagged Questions

Programming audio hardware, and the various audio formats or containers.

learn more… | top users | synonyms (1)

0
votes
0answers
13 views

Matlab crashes while playing a tone

I have a program that presents tones to a user. The program has two buttons, volume up and volume down. If the user clicks on volume up the tone is presented at a higher amplitude and lower amplitude ...
0
votes
1answer
15 views

Set sample rate in windows 7 with vb6

I'm currently struggling to find a solution to programmatically set the sample rate and bit rate of a USB sound card. I'm working on switching over our test program from Windows XP to Windows 7, and ...
0
votes
1answer
28 views

Python: Change Windows 7 master volume [duplicate]

I want to be able to control the master volume (not for an application, but for the current active speaker) in Python. This seems to be a tricky topic; I tried doing it in C# but I couldn't even get ...
-4
votes
0answers
37 views

Reading mp3 files into an array

Is there a way to read mp3 files like matlab does, using the function audioread() it returns the mp3 file as a matrix of double values. I want to do the same thing in C++ or Qt (cross platform) and ...
1
vote
0answers
14 views

Audio Mixing in iOS using AVFoundation doesnt work

I am trying to stitch a bunch of videos together and then add some music over the video in iOS. The audio is added using AVMutableAudioMix. However when the video is finally exported the audio mix is ...
5
votes
3answers
112 views

Preventing automatic casts with integers

I'm developing an audio application (in C++) and I have lots of functions that call each other that either take the number of frames (i.e. 1 mono or 2 stereo float samples) or the raw number of ...
0
votes
0answers
9 views

Easy for coding audio codec

I need to write audio encoder+decoder by my own, i've looked to mp3, but it seems really hard, i've looked to flac, it seems not so bad, but I can't find full description for it. maybe there is much ...
-1
votes
1answer
18 views

How to add soundButton(on&off) on a activity in android apps?

I Have created a branch activity .Now i wanted to add two button on that branch activity. When i click on 'sound on' button then my beep sound on start and when i clicked on 'sound off' then my beep ...
0
votes
0answers
4 views

iOS Avfoundation get audio buffer

How to get the frames of audio using AvFoundations and convert to NSData and play it using AVPlayer . - (void)captureOutput:(AVCaptureOutput *)captureOutput ...
0
votes
1answer
15 views

Audio download link works in Firefox but streams in Chrome

I've setup a download link on the site I'm building so that when users sign up to the musicians mailing list they can download a track for free. With this current code: <a ...
0
votes
0answers
20 views

How to set the frequency and amplitude values in android device?

I am new to android, and I need to work with the audio of the android device. I have something like a table of pairs(frequency - amplitude) and I need to set for each frequency the appropriate ...
0
votes
0answers
11 views

Qt5Multimedia not playing after compilation

Tell me please what may be wrong. I wrote desktop app for playing sound using Qt5Multimedia. While I compile app in QtCreator it's forks fine. But if I start .exe file sound not playing. If I try to ...
0
votes
0answers
16 views

How to upload mp3 file on soundcloud from ios app created with titanium appcelerator

I want to upload file on soundcloud after it .I want share it on Facebook. Is their any api available of soundcloud for titanium appcelerator.
1
vote
0answers
12 views

What is the effect of the “quality” option in SoX mp3 compression?

I am converting audio files of several different formats to mp3 using SoX. According to the docs, you can use the -C argument to specify compression options like the bitrate and quality, the quality ...
0
votes
0answers
5 views

Recording SDR data with GNU Radio Companion

I'm trying to stream data from a RTL SDR source in GRC to a data file. The goal is to get a numerical format output from the the source block tuned to an AM source. Ultimately, I want to use this data ...
0
votes
1answer
34 views

Jquery Div Click for Audio Player?

So, for a player that I am developing for a website, the album artwork is the background which is pulled from Last.fm via XML JSON and then displayed. Now, currently, the music plays automatically and ...
0
votes
1answer
14 views

AudioManager getVolume custom method

My getVolume() method is always returning me 1.0. I have muted my phone, changed the volume but I am getting 1f anytime when I call my method. Am I missing something? btnPlay.setOnClickListener(new ...
-4
votes
1answer
30 views

Sound Library — Android [on hold]

Could anyone recommend me some Android library to deal with sounds? And well documented if possible! I would like to record sounds as well as save it and stream it. What could be the best choice? ...
0
votes
1answer
12 views

Flash CS6 AS3 play sound on one frame only, stop when left frame

I have a scene which has a frame for each screen that I want to display to the user. Each frame has a movieclip which contains all the elements for that screen. The first frame's movieclip has frame1 ...
0
votes
1answer
9 views

HTML5 video - Get only soundtrack from video

I would like to load a video where I only present the sound of the video to the user. In fact if I could only download the sound track from the video, it would be best. Is it possible to load a video ...
0
votes
1answer
22 views

Is it possible to play sound(like midi or wave) simultenously using soundpool ?or media?

I'm begginer android programmer and java learner. I have one team and we have been developing harmony testing application. Now we have a one problem that we can't play midi files or wave files ...
1
vote
0answers
12 views

Listen the sentence that is written in textfield [on hold]

is there any library which reads the sentences or words in English directly like we use terminal in IOS and say Hello and it says Hello. I want such a thing programmatically in Iphone. Is there any ...
0
votes
2answers
15 views

How to open my apps audio player to play audio after clicking an audio link which is present in email?

I am working on iphone application which plays audio in app. I can share audio links via email. The person with whome I have shared link can listen to audio by clicking on audio link in the email. ...
0
votes
0answers
10 views

About actionScript3 sound, how can I do with a sound loaded from the specified position?

I have a problem, when the sound has loaded, I can play the sound from any position, but now the sound is too long, about 2 hours more, it will take a long time to load, I want to start to load from ...
0
votes
0answers
7 views

android sound overlap command line ffmpeg not working

I want to mix(not concatenate) 2 audio files in android. For ex : first file has audio and second file has voice. I want to mix these 2 files and generate output file who have music and voice playing ...
0
votes
0answers
5 views

Detecting and printing timestamps of periods of silence using SoX

I am trying to output the begin-timestamps of periods of silence (since there is background noise, by silence I mean a threshold) in a given audio file. Eventually, I want to split the audio file into ...
0
votes
0answers
10 views

iOS, using AudioUnits to record sound internally to URL

In my iPhone application I want to record sounds internally produced by my own application, v.s. recording external sounds captured by the mic. Another way of saying this is that I want to record ...
0
votes
1answer
17 views

App is accessing iPad microphone

I'm currently working on an app that uses the Mobile Csound API to create a synthesizer. For some reason, the app accesses the iPad's microphone when running on the device, but not when running on the ...
2
votes
1answer
65 views

Bass Boost in Java

I am trying to do bass boost for my audio input to 12 dB. Here is the code public class BassBoost { double xn1, xn2, yn1, yn2; double omega, sn, cs, a, shape, beta, b0, b1, b2, a0, a1, a2; ...
-6
votes
0answers
29 views

0 Segmentation of the audio stream with representing the time of each segment in matlab [on hold]

Here is a code in Matlab which is about audio segmentation:silence removal which i downloaded it from Theodoros Giannakopoulos's web site this code remove silent part of an audio and do the audio ...

1 2 3 4 5 … 377
15 30 50 per page