Hi, Anybody know how to generate chapter metadata in Mac OS X? (preferably Cocoa). I've tried to create an M4A file by concatenating two AIFF files. The M4A was generated fine but the chapter marks are all gone. Here is my prototype code. Is there anything wrong with it? -(void) generatePodcast { NSLog(@"Generating..."); NS...
It only plays in ear mic! I use Remote IO to playback OSStatus status; // Describe audio component AudioComponentDescription desc; desc.componentType = kAudioUnitType_Output; desc.componentSubType = kAudioUnitSubType_RemoteIO; desc.componentFlags = 0; desc.componentFlagsMask = 0; desc.componentManufacturer = kAudioUnitManufact...
I am mostly a business programmer and I've not done anything in audio programming since the ZX Spectrum so I'm not sure how to even ask this question correctly. I just need some pointers in the right direction with regards to writing (Android in this case, but it is really a general question) applications which deal with audio such as a...
Please help!!!.... I bought JWPlayer ver 4.0. So far, the player has been good, until flash was upgraded to the latest version 10.1.53.64. We are delivering lesson captures on the web. Using the lastest version of JW player (5.2) and streaming flash file (audio only), the file was able to play (autostart=false, ), but when the control...
Hi, I'm using the AQRecorder from SpeakHere application to record WAV audio file. Everything works well on simulator but on device I'm getting the warning in console: "Error: couldn't get input channel count ('what')" And the recorder does not start recording. Thanks for help ...
Hi , I want to repeat here a functional: -Tap a Word or Drawing to seek in the audio. -Text and Drawings will highlight at the time they were recorded. Working example: http://www.youtube.com/watch?v=H9e9v_6Buoo Could you help me, how I can make it. Thanks a lot. ...
Take, for example, the VSTi Triforce, by Tweakbench. When loaded up in any VST host on the market, it allows the host to send a (presumably MIDI) signal to the VSTi. The VSTi will then process that signal and output synthesized audio as created by a software instrument within the VSTi. For example, sending an A4 (MIDI note, I believe)...
I'm looking to build a little toy app that is very similar to a voip application. One person would hold one iphone and talk to the other iphone. I don't want to use gamekit because it forces a p2p connection and does not work over 3g. I'm worrying about the server side of this later but just wanted to get started with the iPhone side of ...
Hello, How can I create an ASP.NET page, that allows users to communicate with audio voice. What must I do to accomplish this job. Thanks. ...
I want to add a simple audio control (play/pause/seek/volume) control to my flex application. Please suggest some free , preferably open source component. ...
The following code used to work for me in the past. I'm trying it now with iOS4 without luck. It is working in the simulator, but I don't hear anything on the device itself. I first try to record few samples into a NSMutableData variable, and then I try to play them back. I've tried the SpeakHere sample from Apple - which works (but it ...
Hi, I'm trying to synchronize 5 audio files (mp3) each representing a musical instruments. I'm using MediaElements. I'm starting all the MediaElements at the same time and it works perfectly until I try to pause/play these audio files. When I start them after the pause, they become unsynchronized. Using a timer, I tried to check when ...
I have a audio player app, where there is a Main activity that shows 3 audio sample urls. On click on one, it goes to a Details Activity, which has a play and pause button, to start and pause the audio. My problem is that, when I start the Main activity, and say click on audio 1, I hit play on Details activity. This starts the MediaPla...
I am running some tests on audio compression and trying out Skype's Silk. In their test application I am seeing compression rates of 94%. This seems high, is this a typical rate on Silk? Is this comparable to other audio compression codecs? ...
Hey, I wonder how I can read out the duration of an mp3 song. If I'm right it's not an ID3 Tag so I guess I have to calculate it somehow ? For the rest of the ID3 Tags I'm using this libary: http://javamusictag.sourceforge.net/index.html Cheers ...
Hi, I am interested in determining the musical key of an audio sample. How would (or could) an algorithm go about trying to approximate the key of a musical audio sample? Antares Autotune and Melodyne are two pieces of software that do this sort of thing. Can anyone give a bit of a layman's explanation about how this would work? To ma...
Hi, Is it possible to write an iphone app that allows a user to pick a song (located on their iphone) and have it play out on an another iphone based on a client-server type relationship over a wifi connection? Thanks for your help, Lee ...
Just stumbled upon a huge bug in Chrome (looks like it is fixed in coming Chrome 5): http://code.google.com/p/chromium/issues/detail?id=25185, basically it stops throwing timeupdate events after two or three seconds of playing, hence no way to update player interface. Is there any established javascript level fix for this? ...
This is not a specific question, instead I'm trying to get an idea of flashes capabilities. I'm building a website that has an Mp3 upload component on it. Serverside I can use the command line audio tool "SOX" for most of my heavy lifting but I'd like to offload some of it onto a flash client. Essentially, client side, needs to be able ...
I'm working on an application that will read in file paths and play audio files. I'm trying to keep this as simple as possible--by using existing codecs and free/open utilities. I'd like some suggestions on the best way to do this. I've had two ideas, both involving FFmpeg: Create a simple GUI that allows the user to read pass in fi...