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iConnectivity Audio4c latency Vs IDAM
I am considering buying an iConnectivity Audio4c audio midi interface. I wonder how the latency is when running audio from the iPad Pro (USBC) to my MacMini and into a DAW like Ableton. I have used IDAM before, and I must adjust the latency preference with AUM to make the timing latency tighter. When using iConnectivity Audio4c, is the latency minimal or would it be more or less the same as IDAM? Thanks
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so i have the ica4+ not the USB C.
i run my PC Ableton live at buffer 32 with input latency 1.83ms and output 2.50 ms and overall latency of 4.33ms
iPad buffer depends on your particular iPad processor.
basically the ica4 isn't really a bottle neck, its the processor on the PC/MAC and iPad
Thanks.. I guess it’s a decent audio hub or audio patch-bay. I just have this feeling IDAM does more or less the same.
iDAM audio is only one way and is locked to 44.1kHz. Also you can’t use an audio interface on the iPad while using iDAM.
This is what I realised and why I got an ICA4+ , which with a USB B to USB C cable works perfectly with more modern machines like my MacBook. You can round trip a channel from a desktop DAW through AUM and back and just about play live in my experience with that computer and my iPad Air 3…
This
I‘ve used the Audio4+ for years this way, even with non-supported OS versions via the analog in/outs. Latency has never been a problem.
Most stunning fact: iConfig (several years old) still works on my Mini M1 (Monterey).
I guess I will sell my Arturia Minifuse2 and get this ICA4. I use a iPad Pro m2 and MacMini m2.
I don‘t know the USB-c version (Audio4c) from own experience, but there have been noise issues on analog inputs reported with it. (see other thread).
If you mainly stay in the digital domain (from IOS app to desktop app) then this doesn‘t apply of course. It‘s relevant for mic and instrument input mainly, afaik.
it's not just the USB C version, the apple lightening cable version also has fairly noisy analogue ins. It's nothing to do with USB in general. obviously in some cases you can get a USB grounding issues which can be alleviated but the analogue ins are just noisy in the high frequencies regardless of the USB C version or lightening version and can't be fixed.
How high are those frequencies ? Beyond 15khz I‘m essentially deaf...
On the other hand I never noticed anything suspicious on the meters.
But my setup (up to 30 power connectors from a single wall outlet) is carefully grounded.
Information by the local electrician: there‘s just 1 single supply line for the whole flat.
(I have to keep a power-up sequence to not activate the security fuse)
hihi, indeed its starting around 14/15khz and increase upwards. however, i feel it totality usable for my needs.
i also agree though that checking for grounding is very important.
If I plug-in my iPad usb c in one of the inputs ( probably the powered one) and. My MacMini in usb 1, can I play the output through the monitor outs (speakers) of either the iPad or Mac? This would be nice and convenient. Are the outputs loud for active monitors?
Yes, a single set of monitors can be used for either Mac or iPad. (even both simultaneously)
@Danny_Mammy I‘ve measured with my P-Bass and a 260 Ohm termination on input 1 with 30dB of analog gain applied, so the bass would peak at zero dB/fs.
Bass noise floor: -59dB, noticeable hum (instrument stood 2 ft from PC)
Terminated: -75dB, no trace of hum at all, just white noise. With only 1dB of gain (to prevent muting the input, just in case...) it yields -80dB.
So there‘s definitely noise, but within the range of many outboard units and no show stopper.
In fact no USB/computer like noises detectable.
I would use this for just the iPad to Mac integration. Maybe I’ll keep my other audio interface for external recording.
This seems to be a common solution...an interface with good preamps for i/o aggregated on the mac with the 4c which is just used for ipad/mac audio streams
Thanks for your help!
Can someone let me know if the main analog outputs to the speaker monitors are loud or not? I have had a few audio interfaces and they were fine when recording, but the main outs were like 3dbu.
Does anyone have one of these to confirm if the volume is ok?
i own a Audio4c and its my main audio driver on my m1...
im curious if you have noticed random sysex messages coming through the midi ports... this can occur when a firmware update is available... which a little annoying glitching affect occurs to notify you a firmware update is available...
firmware notification aside, do you still get random sysex messages outputting from the Audio4c unit midi outputs?
put a midi monitor to listen to the the main audio4c midi ports and see if you notice intermittent sysex messages being passed through...
cheeRs
The whole Audio4 thing is driven by sysex, so an occasional message wouldn‘t surprise me at all.
(there even was a sysex manual on iConnectivity‘s site, maybe still is)
But those messages aren‘t responsible for the noise floor.
(imho the discussion about the latter is rather exaggerated anyway)
It‘s stating the obvious that iConnectivity doesn‘t provide high end analog in/outs.
But considering which gear is most common in mobile use, it simply does the job.
In functionality it outperforms basically everything on the market, let alone IDAM.
The improved workflow makes up for a few flaws one might experience when recording with a $1k and up microphone. A (proper) preamp in front of the iCA4 will cover that case.
But everything the interface exchanges in the digital domain is flawless, and the most efficient in cabling and budget. Just my 2 cents...
sorry, have to chime in, the noise level is not very good even for current low-end audio devices IMO. however, its usable indeed and i love the thing.
That‘s the point: in figures it may seem bad, but it‘s usable...
According to my figures given above about bass recording (30 dB gain yield a full scale signal with a noise floor of -60dB) it’s simply that: usable.
Any regular guitar/bass amp will have a much higher noise floor, let alone tracked by microphone.
tech specs are overrated anyway
Enough people that have the 4c and another interface have commented on the noise floor of the 4c being a noticeable problem that I give credence to those reports. Several people have said that because of the issue, they use the 4c exclusively for device to device routing and use another interface for recording (usually by creating an aggregate device on the Mac).
It’s too bad they don’t make a digital only router that could have no in/ outs, but just usb iOS - computer connect. I have no need or interest for their analog inputs or outputs.
They used to:
https://www.iconnectivity.com/products/midi/iconnectmidi2plus/
I have it. It has two USB ports and does audio and MIDI passthrough between two devices.
The problem is, how do you listen to it?
Headphone out on your computer, assuming that’s one of the devices you’re using.
I just got a 4c as the hub of the studio space I’m setting up with a MacBook Pro and a couple of iPads. I haven’t yet tried the audio ins/outs - I’m planning to use them as send/return loops for external processors - but for digital audio and MIDI routing, it’s working as advertised.
I think I have the iConnectMIDI2+ somewhere in a closet of mine. I bought one ages ago. I could never get it to work well as I remember. So does this do more or less the same (digitally / USB) than the 4c? I think I remember it had really bad latency.
No latency on mine. It just feels like a wire. Unless…
As soon as you aggregate two audio devices you will increase latency.
I guess I’ll try to connect my older unit and give it a test. I wonder if it’s more or less the same digital usb flow than in the newer units like the 4c?
if anyone has compiled a list of what the audio4c sysex messages do... i'd be interested in them!!
they would be useful if they indeed control volumes/pans of the audio4c hardware..
i have not come across the list on the icconectivity website