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DL iPad Recording with Voice Record

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WK154:
I don't use the iPad for recording but for those that do here's my take on squeezing the max out of it. Let's look at Voice Record (VR) since it is useful for both recording and immediate playback. Here are my settings for recording in VR. Sample rate of 48K unless my target is CD or YouTube at which time I use 44.1k. Bit rate of 160 kbps which unfortunately is the max for this app. I would have liked to see the iTunes 256 kbps or the AAC max of 320 kbps. :( The bit depth is 24 no point going to 32 its the DL limit and 32 won't get you anything more. Stereo channels and max encode quality is my choice. These settings are under advanced recording. Now for the DL setup. Since the meters in MF are pretty much worthless VR has a pair of VU meters that lend themselves nicely to recording as they should. I set up the MF faders at 0 across the board in L&R. Then it's sound-check time for each channel that will be recorded. I adjust the channel with the trim on the preamp (it's the only place where you can affect the S/N ratio) to 0 on the VU meter. The VU meter is the closest approximation to hearing loudness of all the meters available here. A Dorrough meter would be great but it costs more than the DL. Yes it's a lot of back and forth between MF and VR for mute but that's why you get paid the big bucks. :) Let's address the "what if the drummer goes wild" well that's were the compressor can help on individual channels. I would set the threshold at -6dBFS soft knee with a ratio of 6:1 and a fast attack time or whatever you like there. No clipping here. I also set the L&R main output compressor with the  same values for any additional surprises. Since most music has a crest factor of somewhere between 8-12 dB we should be good since these settings will give about -15 dBFS rms in the recording. If your doing classical orchestra you may want to drop the VU level to -2 for adjustment. This should give a recording very close to final and post will need little adjustment. The philosophy here is to do it right the first time and you may have what you need without post. A view of the results in an audio editor will verify this and you can do post processing if necessary.

robbocurry:
Good info WK, will try your method this weekend ;)

WK154:
On the Voice Pro 160 kbps rate both iTunes and Media player show 117-118 kbps on the recording. So much for specs. A sine wave at 0 VU meter will get a recording of -12 dBFS. Music will be harder to get a 0 VU setting on and will give a lower rms value around -15 dBFS depending on the music of course.

RoadRanger:

--- Quote from: WK154 on February 09, 2014, 02:53:45 AM ---On the Voice Pro 160 kbps rate both iTunes and Media player show 117-118 kbps on the recording.
--- End quote ---
Weird, MediaInfo shows 160kbps on the three recordings I did as does Windows Media Player.

WK154:
What were the other conditions frequency, bit depth, including kbps. No conversions? .m4a file? Encode quality? I used max.
I looked at a 16bit 48K 160kbps file and it's 142kbps. There seems to be a pattern. This was Freestudio take on the file.

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