AudioQueue « audio « iPhone iPad Media Q&A

1. audio not playing in audio queue    stackoverflow.com

In my application i am using audio queue for recording and play back sound and also playing sound files in app. But when I try to play sound files down loaded ...

2. AudioQueue in-memory playback example    stackoverflow.com

Does anybody know of any examples using AudioQueue that play from an in-memory source? All the examples I can find play from files (using AudioFileReadPackets) but in my particular case I am ...

3. AudioQueue and iOS4?    stackoverflow.com

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 ...

4. How to start Audio file from certain location using AudioQueue?    stackoverflow.com

I have analyzed "SpeakHere" sample code of iPhone dev forum. There is a code for starting AudioQueue as following..

AudioTimeStamp ats = {0};
AudioQueueStart(mQueue, &ats);

5. AudioQueue gaps in playback    stackoverflow.com

I'm struggling with an AudioQueue audio player I implemented. I initially thought it was truncating the 1st 1/2 of audio that it played but upon loading larger files I notice gaps ...

6. iPhone SDK: Audio Queue not loud enough for me    stackoverflow.com

I would like all the tricks into making the playback as loud as possible on my iPhone app. I'm recording using Audio Queue and am not sure if there is a ...

7. Does any one know how to modify the Speak Here Sample Code to record streaming audio?    stackoverflow.com

Does anyone know how to modify the code Speak Here from Apple. I need to modify it to record streaming audio using Matt Gemmell AudioStreamer classes but ...

8. AudioQueue screws up output after modification    stackoverflow.com

I am currently working on an audio DSP App development. The project requires direct access and modification of audio data. Right now I can successfully access and modify the raw audio ...

9. Playing mp3 on iPhone in background - AudioQueue: Error    stackoverflow.com

Hi I am developing an app that plays a different buffered mp3 on loop of 5 minutes. When the app runs in foreground or in iphone standby mode it plays ok, but ...

10. iPhone AudioQueue - Reading incoming audio data to determine BPM    stackoverflow.com

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 ...

11. AudioQueueEnqueueBuffer failing    stackoverflow.com

My calls to AudioQueueEnqueueBuffer are failing, with OSStatus -66686. I've never seen this error code before, and am able to find no information on it anywhere. Converting it to an NSError ...

12. AudioStreamBasicDescription for mp3    stackoverflow.com

I have an Audio Queue working to record PCM, but I cannot get it to work for mp3. When I change the mFormatID to kAudioFormatMPEGLayer3, my callback function is never fired. ...

13. How can I play rtsp audio stream (aac) on iPhone?    stackoverflow.com

I use live555 library to get audio data from rtsp stream. I've try to play received data with AudioQueue from AudioToolbox framework.

//set steram description
dataFormat_.mFormatID = kAudioFormatMPEG4AAC;;
dataFormat_.mFramesPerPacket = 1024;
dataFormat_.mChannelsPerFrame = 1;
dataFormat_.mSampleRate ...

14. AudioQueue output channels    stackoverflow.com

I have a problem with audio stream (this is LPCM stream with 6 channels inside). But when I playing this stream on iPhone via AudioQueue I hear only first two channels. Here ...

15. ios AudioQueue problem when streaming multiple songs    stackoverflow.com

I am using AudioQueue to stream audio from an arbitrary source (the class basically just needs a delegate that provides it with packets), ive made a class that wraps all the ...