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IDAM rant - Why is the audio sample rate fixed at 44.1kHz?
I really wanna know why IDAM's audio sample rate is fixed at 44.1kHz. It seems ridiculous to me. Why have such a huge limitation on such a cool feature? Does anybody know why Apple did this?
Comments
This is especially funny since some of the iDevices have hardware locked to 48k and still do 44.1k over IDAM.
Apple is also acting a bit weird that even on devices that are locked to 48k for audio application the built-in camera app insist on recording video with 44.1k audio even though 48k is de-facto standard for video.
Personally I don't find the IDAM 44.1k to be a limitation since most apps still render their audio at that rate and have 'issues' when using other sample-rates, at least it's 24-bit...
I guess a feedback rant to Apple support is the only way to get an answer or something?!
https://www.apple.com/feedback/
Cheers!
Maybe this isn't what you mean...I wanted to actually lower it personally for less cpu and or lo fi huge session. Like droneo lets you go to 2200 something and its really lo fi so im confused why in AUM for example we cant go higher and lower.... OR can we and im silly>
self censored as rubbish, oops
The other thing is that when you plug the iPad in with IDAM it defines the sample rate that the DAW in the Mac will be operating under. So, maybe it's somehow linked to that. But, I still don't understand why it can't be a two way operation for audio. It is absolutely possible.
One more point. From a previous impromptu question I asked on this very topic a few months ago not all devices default to 44.1k using IDAM. From the responses I received I found that the later devices are now defaulting to 48k.
If the new Studiomux beta goes well we'll be able to put IDAM out of our minds for a while. I had it working on Catalina just now with not much of a problem. But it was a synth only on an iPhone 7+. The server software is not tracking the iPad Pro's sample rate properly so it doesn't seem to be working with all devices.
I can't allow myself to go down the rabbit hole of describing the various musical woes I have had due to IDAM and aggregation. It could go on for days.
Plain and simple -- IDAM should be user-controllable, two-way and it shouldn't disconnect at the drop of a hat if the USB cable gets jiggled.
That is kind of a weird restriction. If you add it as part of an Aggregate device though (which is often needed anyway because of IDAM's input-only nature) and let the other "real" device part of your aggregate drive the sample rate, you can then choose other sample rates and CoreAudio will handle the resampling under-the-hood. It's the easiest way around the limitation.
IDAM actually doesn’t limit the sample rate to 44.1, if you have an audio interface that goes higher you can record via IDAM at higher resolutions, what you need to do (at least in Logic Pro ) is set the projects sample rate. In this example I set the projects sample rate to 96 kHz and recorded audio from the Moog Model D app via IDAM.
I then went into the projects audio folder and airdropped the audio file to my IPad into AudioShare just to show the sample rate recorded at 96 KHZ
If you’re using your Mac with no audio interface it will be limited though.
might be related to the (different) codec-chips used in iDevices...
Yeah what sonosaurus and Strizbiz said...Maybe I was unfairly critical of IDAM as it does resample in a project with a non-44.1kHz sample rate..
But the thing is IDAM doesn't indicate in Audio/MIDI setup that it has reset/resampled the input audio so it's a bit confusing.
Also, iOS apps (that indicate their operational sample rate )display 44.1kHz no matter what is happening on the macOS side.
I'm finding it hit and miss with aggregating but that may be the fault of the interface(s) that I've been employing.
BTW, your Logic Pro X test is reproducible (worked for me) but that same thing can't be done in Live 10 (my main DAW) and therefore I suspect other DAWs too. The sample rate gets locked to 44.1kHz when you set the INPUT device to the IDAM device and the out to anything else. In Logic I can clearly see my session/project is in 48kHz and the audio from IDAM comes through correctly though it is reporting 44.1kHz anywhere that info is visualized.