I have just discovered another problem of gain in input. For some devices, input gain is at 5 to 10 times smaller than expected (than lightning device). Our Asynchronous XMOS based devices have no problem. However, the gain on entry-price-level synchronous/adaptive microphone is really low. I will fill a new radar. Thanks, JC
> On 8 Aug 2019, at 14:02, Jean-Charles Rousset <[email protected]> wrote: > > Sam, > > Sorry for my late reply. > > Regarding the bug with the iPad Pro detecting all USB audio devices as > Headphones (wired devices): > I have now access to the name and UID of the port, so, indeed I can now find > a workaround. > However, is there any reason why AVAudioSessionDescription portType stopped > returning USB devices on iPad Pro? > Will it be deprecated or is it still a bug? > I cannot test it here but is there the same problem with HDMI devices? > > Thanks, > JC > > > > >> On 3 Jul 2019, at 16:31, Sambasevam Shanmugam >> <[email protected] <mailto:[email protected]>> >> wrote: >> >> JC, >> >> I see that you’ve marked this issue as unresolved - 48900956 >> >> You filed that radar to track 2 separate issues: >> 1. High gain for usb devices >> 2. Some USB devices recognized as headphones >> >> The radar was used to fix #1. Please open a separate radar for #2 and mark >> 48900956 as resolved if you don’t see the high gain issue. >> >> As for #1, is there any impact for you if the device shows up as headphones? >> >> -Sam >> >>> On Apr 1, 2019, at 11:00 AM, Sambasevam (IMG CoreAudio) Shanmugam >>> <[email protected] <mailto:[email protected]>> >>> wrote: >>> >>> Hi Jean, >>> >>> I’ve got the information I wanted, so no further action is required on your >>> part. >>> >>> -Sam >>> >>>> On Mar 28, 2019, at 3:28 AM, Jean-Charles Rousset <[email protected] >>>> <mailto:[email protected]>> wrote: >>>> >>>> Hi Sam, >>>> >>>> Sorry, bad translation, it is indeed the Voice Memos app. I have updated >>>> the radar. >>>> Can you please tell me how to proceed to sysdiagnose on the iPad Pro? I >>>> could not find the info. >>>> Thanks. >>>> JC >>>> >>>> >>>>> Le 26 mars 2019 à 19:52, Sambasevam (IMG CoreAudio) Shanmugam >>>>> <[email protected] <mailto:[email protected]>> >>>>> a écrit : >>>>> >>>>> Hi JC, >>>>> >>>>> For radar 48900956 - which audio interface, and which input are you >>>>> using? By the Apple Recorder app, do you mean voice memos? >>>>> >>>>> -Sam >>>>> >>>>>> On Mar 22, 2019, at 4:29 AM, Jean-Charles Rousset <[email protected] >>>>>> <mailto:[email protected]>> wrote: >>>>>> >>>>>> Hi Brian, Gordon, Sam, >>>>>> >>>>>> Sorry for my late reply. I’m currently attending a show with tight >>>>>> schedule. >>>>>> >>>>>> Brian, Gordon, I plugged a device in the thunderbolt 3 (USB-C) connector >>>>>> of a MacBook Pro and everything looks normal. Gain max is at 0dB and the >>>>>> recording seems fine with both garageband or audacity softwares. >>>>>> >>>>>> Sam, for now I have tested the Apple Recorder app and the Superpowered >>>>>> SDK on iOS. Both gave the same results: USB devices are detected as >>>>>> headphones/headsets and initial input gain is high (+29dB). >>>>>> The radar ID is 48900956. >>>>>> I will do the sysdiagnose as soon as I can. >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Jean-Charles >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> Le 20 mars 2019 à 23:50, Sambasevam Shanmugam >>>>>>> <[email protected] >>>>>>> <mailto:[email protected]>> a écrit : >>>>>>> >>>>>>> Hi JC, >>>>>>> >>>>>>> Can you please tell me the audio interfaces you’ve tried so far? If >>>>>>> you’ve filed a radar already, can you please provide the ID? >>>>>>> >>>>>>> Also, can you please send me the sysdiagnose with one of the audio >>>>>>> interfaces attached? >>>>>>> >>>>>>> Thanks, >>>>>>> Sam >>>>>>> _______________________________________________ >>>>>>> Do not post admin requests to the list. 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