Hi all, I'm interested in this topic since I've not found any information about it yet.
Correct me if I'm wrong but AVAudioEngine is not able to lower than 100ms latency. It's what I see in the header file of `AVAudioNode` with its method `installTapOnBus`: @param bufferSize the requested size of the incoming buffers in sample frames. Supported range is [100, 400] ms. Maybe I'm wrong but I don't see any other way to have a lower latency audio processing in an AVAudioNode. Best, Laurent Le mer. 11 juil. 2018 à 13:57, Arshia Cont <arshiac...@antescofo.com> a écrit : > Benjamin and list, > > I double Benjamin’s request. It would be great if someone from the > CoreAudio Team could respond to the question. > > Two years ago, after basic tests I realised that AVAudioEngine was not > ready for Low Latency Audio analysis on iOS. So we used AUGraph. I have a > feeling that this is no longer the case on iOS and we can move to > AVAudioEngine for low-latency audio processing. Anyone can share experience > here? We do real-time spectral analysis and resynthesis of sound and go as > low as 64 samples per cycle if the device allows. > > Thanks in advance. > > > Arshia > > > PS: I actually brought the deprecation issue of AUGraph in a local Apple > Dev meeting where the EU director of developer relation was present. > According to him, when Apple announces a deprecation, it WILL happen. My > interpretation of the conversation is that AUGraph is no longer maintained > but provided as is. > > On 11 Jul 2018, at 12:36, Benjamin Federer <benja...@boinx.com> wrote: > > Since it was mentioned in another email (thread) I’m giving this topic a > bump. Would be great if someone at Apple, or anyone else in the know, could > take the time to respond. The documentation at the link cited below still > has no indication of deprecation. Will it come with one of the next Xcode > Beta releases? > > On another note I am really interested in how transitioning over to > AVAudioEngine is working out for everyone. I know AVAudioEngine on iOS. > What I am interested in is any macOS specifics or hardships. > > From my experience AVAudioEngine is relatively robust in handling multiple > graphs, i.e. separate chains of audio units. I had some issues with the > AVAudioPlayerNode connecting to multiple destinations in that scenario. > Also connect:toConnectionPoints:fromBus:format: did not work for me as it > only connected to one of the destination points. Anyone else experienced > problems in that regard? > > Thanks > > Benjamin > > > Am 08.06.2018 um 16:59 schrieb Benjamin Federer <benja...@boinx.com>: > > Last year at WWDC it was announced that AUGraph would be deprecated in > 2018. I just browsed the documentation ( > https://developer.apple.com/documentation/audiotoolbox?changes=latest_major) > but found > Audio Unit Processing Graph Services not marked for deprecation. > The AUGraph header files rolled out with Xcode 10 beta also have no mention > of a deprecation in 10.14. I searched for audio-specific sessions at this > year’s WWDC but wasn’t able to find anything relevant. Has anyone come > across new information regarding this? > > Judging by how much changes and features Apple seems to be holding back > until next year I dare ask: Has AUGraph API deprecation been moved to a > later time? > > Benjamin > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Coreaudio-api mailing list (Coreaudioemail@example.com) > Help/Unsubscribe/Update your Subscription: > > https://lists.apple.com/mailman/options/coreaudio-api/arshiacont%40antescofo.com > > This email sent to arshiac...@antescofo.com > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Coreaudio-api mailing list (Coreaudiofirstname.lastname@example.org) > Help/Unsubscribe/Update your Subscription: > > https://lists.apple.com/mailman/options/coreaudio-api/laurent.noudohounsi%40gmail.com > > This email sent to laurent.noudohou...@gmail.com >
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