Questions tagged [augraph]
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augraph
20
questions
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37
views
Audio mute after changing speed by AUGraph
I use AUGraph to change music speed and get music by rendercallback
_mixNode = [self addNode:kAudioUnitType_Mixer subType:kAudioUnitSubType_MultiChannelMixer];
_effectNode = [self addNode:...
- 1
0
votes
0
answers
24
views
AUGraph kAudioUnitProperty_SetRenderCallback callback not invoke probabilistically
my auGraph struct is below. It use for record and play.
RenderCallback -> C16i_32fConvert -> timePitch -> C32f_16iConvert -> ioUnit -> RecordCallback
EveryTime I startRecord And Play, ...
- 41
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votes
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answers
151
views
file unit callback shows stereo channels in buffer, but the file loaded was 6 channel
We are trying to play an 5.1 (6 channels) AAC audio file using AUGraph. We also tried using AVAudioEngine. We have connected to 5.1 surround sound output device (Sony Speakers). The file is played as ...
1
vote
0
answers
183
views
MIDI processor passthru AudioUnit doesn't receive MIDI events
I'm trying to create a simple pure MIDI Audio Unit (AUv3) that could act as a pipe between for example an AVMusicTrack (played by an AVAudioSequencer) and an AVAudioUnitSampler.
I used the default ...
- 747
2
votes
1
answer
339
views
Play stereo sound in AudioUnit using AUGraph in IOS
I want to play stereo sounds using Audiounit using AUGraph in ios but the problem that I am facing is "My sound is playing fast when i want to play in stereo mode on 48000 samplings rate"....
2
votes
2
answers
1k
views
iOS Audio Units - Connecting with Graphs?
I've jumped off the deep end, and have decided to figure out low-latency audio on iOS using Audio Units. I've read as much documentation (from Apple and forums galore) as I can find, and the overall ...
- 87
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votes
1
answer
264
views
IOS, No output when AUGraphConnectNodeInput is set
I am stuck with AUGraph for a while now and would really appreciate if my problem is resolved.
What is am trying to do right now is to play data(bytes) coming from UDP. I have successfully achieved ...
- 353
1
vote
1
answer
329
views
Varispeed Unit with AuGraph [iOS Swift]
We are trying to connect varispeed unit with output unit using AUGraph.
This is our current code:
var graph: AUGraph?
var varispeedNode: AUNode = 0
var varispeedUnit: AudioUnit?
var ...
- 25
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votes
1
answer
35
views
Does AVAudioEngine support recursive routing?
Can I route Node A into Node B, and Node B back into Node A (of course using a Mixer in between) -- otherwise called "Feedback"? (For example, WebAudio supports this).
user8391200
4
votes
2
answers
2k
views
Does AUGraph deprecation means no more audio render callbacks?
I have an app with an elaborated render callback that I doubt could do with AVAudioEngine.
Anyway to use my AUGraph render callback ( with multiple buses ) with AVAudioEngine ?
Any sample code ?
- 1,523
3
votes
1
answer
474
views
No sound out of CoreAudio AUGraph
I am having trouble getting audio from an AUGraph using MixerUnit and OutputUnit.
I have build a Graph that mixes 2 audiofiles. Here is the code where I create the graph. I don't have any errors.
...
- 63
0
votes
1
answer
163
views
Setting audio pan programmatically on iPhone not working
In my code, I set up an audio processing graph with two audio units: an I/O unit, and a multichannel mixer unit. First the I/O unit:
bool RtApiIos::setupAU(void *handle, AURenderCallbackStruct ...
- 177
2
votes
2
answers
263
views
How to add two I/O audio Unit in AUGraph on iOS?
How to add two I/O audio Unit in AUGraph in iOS ?
One I/O AudioUnit take the record input, another take the playback output.
- 128
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votes
1
answer
235
views
AUGraph playback of aac->pcm converted audio stream sounds choppy on iPhone7plus but not iPhone6
I have built an AUGraph with an AUMixer and the audio playback sounds awful when playing out the stream through the callback on iPhone7plus. You can hear the audio and what is being said but it is ...
- 1,163
2
votes
1
answer
1k
views
Is AUGraph being deprecated on iOS? If so, when?
I've heard rumblings that AUGraph is being deprecated on iOS, for example in this Twitter post:
@marcoarment Your comment on @atpfm about needing to rewrite your audio engine: b/c of the looming ...
- 7,180