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• What language/API to use for a standalone live-input audio visualizer app?

  - by knuckfubuck

  I develop with Actionscript and was glad to see that AIR 2.0 was going to give access to mic input data. I planned to use this to create a visualizer set to the tempo of the incoming live audio. After doing a few days of google research it seems unlikely that it will be possible to analyze the data of the mic input in Flash/AIR. If anyone has ideas…

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• OpenAL - determine maximum sources

  - by Bill Kotsias

  Is there an API that allows you to define the maximum number of OpenAL "sources" allowed by the underlying sound hardware? Searching the internet, I found 2 recommendations : keep generating OpenAL sources till you get an error. However, there is a note in FreeSL (OpenAL wrapper) stating that this is "very bad and may even crash the library"…

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• Speech recognition with Flash or Silverlight

  - by Sebastián Grignoli

  I'm developing a web user interface to enter some information that is not very complex but needs to be loaded in real time. I think that the application could make use of speech recognition to facilitate the task. Te core of the interface is being built with Javascript and jQuery, but can easily include a flash or silverlight component. I…

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• Check if song is buffering in AS3

  - by SXMC

  I have the following piece of code: var song:Sound; var sndChannel:SoundChannel; var context:SoundLoaderContext = new SoundLoaderContext(2000); function songLoad():void { song.load(new URLRequest(songs[selected]),context); sndChannel = song.play(); } Now I want to be able to check if the song is buffering or not. Is there a way…

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• SoundPool.load() and FileDescriptor from file

  - by Hans

  I tried using the load function of the SoundPool that takes a FileDescriptor, because I wanted to be able to set the offset and length. The File is not stored in the Ressources but a file on the storage card. Even though neither the load nor the play function of the SoundPool throw any Exception or print anything to the console, the sound…

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• iPhone: How many instances of AVAudioPlayer should I have for multiple sounds?

  - by foreyez

  So I'm using AvAudioPlayer to play multiple wav files. About 20 different sounds (each about 1 sec long), and you can think of each being played on a button press. Also I don't need them all to play simultaneously, i.e., one plays and you press another button to play another one (which stops the currently played one). What I'm wondering,…

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• Linux, C++ audio capturing (just microphone) library

  - by TheOm3ga

  I'm developing a musical game, it's like a singstar but instead of singing, you have to play the recorder. It's called oFlute, and it's still in early development stage. In the game, I capture the microphone input, then run a simple FFT analysis and compare the results to typical recorder's frequencies, thus getting the played note. At…

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• Comparing two speech sounds

  - by JessicaB

  I need to be able to determine if two sounds are very similar. The goal is to have a very limited vocabulary (10 or 15) of short one or two syllable words, then compare a captured sound to determine if it is one of those items with all the usual variability in environmental and capture conditions. The idea is that the user can issue a few…

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• Using Pidgin 2.5.2 in Linux no sound is made for incoming messages (as it should)

  - by Kent

  Hi, I have a problem with Pidgin 2.5.2 in Linux (Ubuntu 8.10). When someone sends me a message no sound is played (the tray indicates a new message and blinks, that's it). Sounds play fine when I send someone a message. If I preview the Message received and Message sent sound events both of them do make a sound. Automatic and ALSA is…

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• Slideshow from excel file listing the caption, sound file and image file?

  - by Slabo

  Hello, I have excel files with the following header: Caption Sound: Location of sound file Image: Location of image file How can I make a slideshow from this? Each slide should show image, caption, and play sound automatically according to the excel list. I don't care what software I use, if I can get the job done. Total slides…

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• How to play the same Sound multiple times with overlap, using OpenAL or Finch?

  - by mystify

  Finch uses OpenAL. However, when I have an instance of Sound, and say -play, the sound plays. When I call -play multiple times one after another in a fast paced way, every -play makes the current sound playback of that sound stop and restart it. That's not what I want. Would I have to create multiple sources or buffers to get that…

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• How do i make a sound be able to hod long (read more please i need help)

  - by EstherBunny

  Ok what i need is help..haha ok im making a music app with a paino but i need to be able to hold the sound long or short. So like if i hold a button it will start playing the sound but if i let go it stops WITH A FADE so how ever long i hold the button down that is how long the sound will play (that is ntill the sound ends)

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• Assign programs permanently to different sound-outputs in Pulseaudio?

  - by Mood

  I want to assign Skype input and output to my USB-headset while the rest of my laptop uses the internal sound-card. This is an easy task with PulseAudio Volume control (pavucontrol). The only problem I have is every time a call is made I manually have to set the output and input for Skype to my USB-device . When I hang up, Skype…

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• A way to enable a LaunchDaemon to output sound?

  - by Varun Mehta

  I have a small Foundation application that checks a website and plays a sound if it sees a certain value. This application successfully plays a sound when I run it as my user from the Terminal. I've configured this app to run as a LaunchDaemon, with the following plist: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE…

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• My sound stopped working today, how can I fix it?

  - by Oli

  This seems to be a problem with pulseaudio. I was logged in over VNC on my phone and started playing a video this caused X to crash (as sometimes happens). I restarted and suddenly the sound doesn't work. I have a Intel HDA/Realtek ALC889 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller …

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• flex 4: swfloader - how to mute game completly

  - by ufk

  Hiya. Ive read some answers here regarding muting swfloader volume but none of the examples would work in flex 4. I tried doinf the following: this._swfGame.source=url; this._swfGame.soundTransform = new SoundTransform(0.0); this would shut down the volume of the preloader, but when the game starts the volume is back to…

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• c++ FFT Beat detection library?

  - by mokaschitta

  Hi, I am currently looking around for a good allround beat detection library / source code in C++ since I found it really hard to achieve satisfying results with the beat detection code I wrote myself using this tutorial: http://www.gamedev.net/reference/programming/features/beatdetection/ It's especially really hard if…

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• C# DirectSound - Capture buffers not continuous

  - by Wizche

  Hi, I'm trying to capture raw data from my line-in using DirectSound. My problem is that, from a buffer to another the data are just inconsistent, if for example I capture a sine I see a jump from my last buffer and the new one. To detected this I use a graph widget to draw the first 500 elements of the last buffer and…

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• Play any audio for given time

  - by Dipen

  I want to play any file for 6 seconds. Also suppose the audio is bigger then 6 sec the application will play only for 6 sec.and if it is less then 6 sec then play continuously. So is there any inbuilt option from any framework?

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• How to make a simple voice recorder in pcm format?

  - by XBasic3000

  i created a simple voice recording using wav format. my problem is i wanted it to save as PCM format without using comercial components. i have MSACM.pas but i dont know how to use it. My compiler is delphi.

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• Flash computeSpectrum() unsynchronized with audio

  - by sold

  I am using Flash's (CS4, AS3) SoundMixer.computeSpectrum to visualize a DFT of what supposed to be, according to the docs, whatever is currently being played. However, there is a considerable delay between the audio and the visualization (audio comes later). It seems that computeSpectrum captures whatever is on it's way…

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• play two sounds simultaneously iphone sdk

  - by Asaf Greene

  I am trying to make a small music app on the iphone. I want to have an octave a piano which will respond to touches and play the key or keys that the user touches. How would i be able to get two or more sounds to play at the same time so it sounds like a chord? I tried using AVFoundation but the two sounds just play one…

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• What is the easiest way to read wav-files using Python [summary]?

  - by Roman

  I want to use Python to access a wav-file and write its content in a form which allows me to analyze it (let's say arrays). I heard that "audiolab" is a suitable tool for that (it transforms numpy arrays into wav and vica versa). I have installed the "audiolab" but I had a problem with the version of numpy (I could…

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• OpenAL device, buffer and context relationship

  - by Markus

  I'm trying to create an object oriented model to wrap OpenAL and have a little problem understanding the devices, buffers and contexts. From what I can see in the Programmer's Guide, there are multiple devices, each of which can have multiple contexts as well as multiple buffers. Each context has a listener, and…

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• monotouch play music when device is locked

  - by Ali Shafai

  I'm trying to make my monotouch app continue playing when the device is locked, I found this snippet in ObjC, was wondering if mt already has bindings for it or not. AudioSessionInitialize (NULL,NULL,interruptionListenerCallback,self); UInt32 sessionCategory = kAudioSessionCategory_MediaPlayback;…

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