I am开发者_StackOverflow querying AudioQueueRef for kAudioQueueProperty_CurrentLevelMeter and code that perfectly worked on 10.6.6 now gives me just zeros in level.mAveragePower and level.mPeakPower.
I\'m interested in using the Media Player framework on iPhone to access audio in the user\'s library.I want to be able to load a given audio file and then perform some specialised filtering on it.
I am currently working on an audio processing app on iPhone. it is based on Apple\'s SpeakHere sample code, aims at real-time audio processing and playback. The code works well in simulator, but not c
I\'ve built an audio recording app (like \'SpeakHere\' demo from apple), and I was wondering how can I modify it to work on BACKGROUND.
I have an application which uses Audio Queues to do recording of spoken user input. This only happens for short durations and only when the user presses a button.
I am logging the stream of floats coming from the microphone (should be silence) I have setup audio queueswith a buffer size of 256 floats
I\'ve followed the API Docs and WWDC Videos exactly, to play audio in the background via an Audio开发者_开发知识库 Session (using the AudioQueue services). It all works just fine, but there is no \"Pl
So I can\'t find anything online that says I can\'t do this, but whenever I try to do it on the iPhone, errors are returned from AudioQueueSetParameter. Specifically, if I try this code:
I made a streaming music player and it works fine in the foreground. But in the background iOS4, 开发者_StackOverflow中文版it doesn\'t play the next song automatically. ( remote control works )
I\'m working on a DSP related iOS app. Part of the work is to copy audio data from outBuffer ->mAudioData to an user-specified array for data processing. The read method is like this:
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