Hi tja,
I’ve already replied to your current similar threads in the Audiobus forum.
Please find the copied message below.
Best,
Lars
Hi tja, Hi all,
After exchanging with our development please allow me to reflect on this topic.
Since tja has published the similar topic in a different thread, you will find this answer copied there as well.
In general, using third party instruments and/or effect plug-ins always bears the risk for issues, that are often unrelated to Cubasis - as already mentioned by other users here.
The same applies for other DAW’s, no matter if mobile or desktop. In this context, running into issues, also can lead to consequential errors, when the iPad/apps in use aren’t restarted, once a problem arose.
We’ve tried our best to state the limitations of Cubasis’supported third party standards in the following articles:
Limitations of Audio Unit
Limitations of Inter-App Audio
Limitations of Audiobus 3
In commenting your topics, Rodolfo sums it up quite well (Thanks Rodolfo!):
“There are two different problems, one is related to the volume level and eventual clippings (I insist it has nothing to do with Cubasis/Auria but the volume level of the sound source app), the other is related to the freezing feature in Cubasis introducing longer audio tracks as if they had been streched out. The latter has been discussed in this forum and other forums and Cubasis was fixed in some way to avoid the problem, but it seems there are still some issues pending. The problem is related to apps that make intensive use of the CPU during the freezing operation and the way Cubasis handles this feature.”
(1) Track freeze and audio file length
Depending on the third party app instrument/effect plug-in and its associated values, the use of track freeze can lead to long files in some cases, making sure to prevent audio file signal loss.
(2) Audio file clipping
So far, we are not aware of any audio related problems related to Cubasis, when using track freeze.
Therefore we expect issues such as distortion or similar to be related to either, the third party app in use, the chosen format (IAA, AU), consequential errors or other problems.
If the problem persists and is reproducible, please provide the individual instrument developer and us with the steps, to allow the evaluation.
(3) Track freeze settings and further options
In a nutshell, working with third party apps and Cubasis works best with regular 44.1 kHz projects and ultra low latency.
Furthermore, if track freeze fails with specific effects or instruments using the standard setting, Cubasis provides additional real-time rendering options located in the setup (Mixdown / Share section).
Please make sure to have a look at the relevant articles that explain the limitations of AU, IAA and AB3, that are linked above.
In our opinion, Apple’s Audio Unit format can be more or less seen as the successor of Inter-App Audio.
In general, IAA seems more unstable, compared to Audio Unit, which provides more options and has recently updated by Apple (CPU time out bugfix in iOS 11.3).
If you experience issues, please make sure to send reports to the individual instrument and/or effect plug-in developers. As we did in the past, of course we’re at hand and willing to exchange with them, if required.
Best,
Lars