core-audio

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IPhone audio: Volume faint ( but okay with headphones )

I\'m getting unexpected audio behaviour: problem -- iPhone device volume is very faint,but if I plug in headphones the volume is perfect[详细]

2023-03-01 12:40 分类：问答
Is it possible to use AVAssetReader to get back a stereo channel layout?

I\'d like to be able to get back AudioBufferList from AVAssetReader which has 2 buffers so that I can process the left and right audio through an AudioUnit. I tried using the output settings below but[详细]

2023-03-01 06:11 分类：问答
AVAssetReader reads audio, then fails

My app reads audio and plays it back in a producer / consumer setup. The consumer thread requests new samples to render to hardware. The producer thread reads audio data from disk into its buffer usin[详细]

2023-02-28 06:11 分类：问答
How to combine AudioQueuePause with AudioQueueGetCurrentTime to resume audio Playback in iPhone SDK?

My iPhone app plays a streaming audio from the internet. I need to combine AudioQue开发者_如何学CuePause with AudioQueueGetCurrentTime to pause the audio stream and then resume the playback when the[详细]

2023-02-27 13:40 分类：问答
Setting a time limit when recording an audio clip?

I looked for search terms along the lines of the post title, but alas.. I am building an iPhone app using AVFoundation.开发者_StackOverflow[详细]

2023-02-27 03:06 分类：问答
Objective-C: AudioOutputUnitStart takes a long time to start. Possible workaround?

AudioOutputUnitStart function takes up to 1-2 seconds to start every time I call it. I use AudioOutputUnitStop to stop it, is there something like AudioOutputUnitPause so that it only takes this much[详细]

2023-02-27 00:43 分类：问答
Audio Units volume issue on iPhone4

I have a rather strange issue, I\'m using Audio Units from CoreAudio to playback sound, the sound it\'s loud as it should be on iPhone3g and iPhone3gs, however it\'s mild, soft (maybe half the volume)[详细]

2023-02-26 21:05 分类：问答
How can I change the recorded voices into fun voices in iPhone?

I have seen some iPhone apps in whi开发者_C百科ch recorded voices are made into fun voices. Is it possible to programmatically change recorded voices into fun voices using an iOS library?[详细]

2023-02-26 02:37 分类：问答
Objective-C, CoreAudio: Possible reasons for which played sound has additional noise, hiss and pops?

I\'m using CoreAudio to play some continuous sound. I managed to get it work, however I have a problem now that I can\'t overcome. The sound it\'s playing, more that that it\'s the actual sound I need[详细]

2023-02-25 04:42 分类：问答
Is there a way to record device audio on the iPhone?

AVAudioRecorder allows the recording of external au开发者_Python百科dio. However I wish to record the audio made by my application (through numerous AVAudioPlayers), is this possible on the iPhone?If[详细]

2023-02-24 17:01 分类：问答