Topic: Recording on a Smart Phone?

[kindms]

RE: metarecorder

any experience with CAF ? just wondering if its widely supported in DAW like audacity or similar (PC user)

[WiFiJeff]

With metarecorder I always use CAF recording at 96 kHz from a DPA MMA-A, because my files generally run 3-7 hours (the iPhone battery limits me to 9-10 hours, but I've never run that long).  Audacity will let me split CAF files into smaller (< 4G) files that can be exported as 96 kHz .wav files. My editing programs (older
Wavelab, iZotope Rx) will not handle CAF directly.

If you try to record broadcast wav and it runs over 2GB the recording will just stop and you'll lose the later material.

Jeff

[grawk]

I tried using metarecorder with my mma-a last night at goose, 96/24 CAF, and it stopped recording at about an hour and 3 minutes.  Is this a known bug, or did I screw something up?

[vanark]

I tried using metarecorder with my mma-a last night at goose, 96/24 CAF, and it stopped recording at about an hour and 3 minutes.  Is this a known bug, or did I screw something up?

I think that 1 hr. 3 min. is likely the time it gets to 2GB at 24/96 which is what most recorders use as a max file size. In handheld recorders, it usually automatically starts a new file, but not sure that happens in metarecorder. I would start looking there.

[Fatah Ruark (aka MIKE B)]

With CAF it should keep going after 2GB, so not sure what happened. You can always back it down to 24/48 to reduce the chance of making it to 2GB.

Probably a good idea to run some tests prior to your next show. Let us know what you find if you do. I love the idea of such a small stealth setup, but I'm still not 100% comfortable with reliability. I'd really like to get to the point where I can just get wired up, fire up the recording 15 minutes before the band comes on and just know I'm going to have a good recording once the show is over.

[WiFiJeff]

I regularly use metarecorder with the MMA-A at 24/96 for CAF files many hours long (usually 4-6), 10 GB.  The metarecorder software insists on resetting to 48 kHz broadcast wave after each erasing of the previous recording. so I end up having to reset the choice to CAF and 96 kHz each time.  Did you actually record a CAF file that stopped at the 2 GB limit?

[grawk]

it actually stopped at 2.19GB, oddly enough.  I do have 170gb free on my phone, so it wasn't out of space.

[morst]

it actually stopped at 2.19GB, oddly enough.  I do have 170gb free on my phone, so it wasn't out of space.

2.19 GB is ~2.039 GiB because a Gibibyte is BIGGER by a factor of approx 1.07x.

I was horrified and fascinated to learn about this from my drive speed test app.

Gigabyte (GB)   1000³ = 1,000,000,000
Gibibyte (GiB)   1024³ = 1,073,741,824

OK it's short for "gigabinary" just learned that right now from the wiki, under "history of the conflicting definitions"

https://en.wikipedia.org/wiki/Byte#History_of_the_conflicting_definitions

[grawk]

first set stopped right at 2gb, in broadcast wave.  CAF one stopped at 2.19.  So I think something else is going on.

[DavidPuddy]

I ran my Rode AI-Micro for 3 hours today with no issues in CAF format (3.12 gb)