Topic: Edirol R-4

[John Kelly]

hopefully, it saves each channel seperately, aka, mono.
that would greatly reduce filesize and the mono files can be easily joined to stereo in post

hmm, yes, I didn't think of that.  but still, at 24/96 stereo, you're at 2 gig per hour.  so mono, each track would be at 2 gigs in 2 hours.  I know I'e taped shows that are one long set that goes for more than 2 hours.  so an autosplit feature would still be nice.  has anyone seen any mention of that feature?

Yesterday I got my DEVA II unit and here is how they get around the the 4 GB issue, They buffer 10 seconds of audio, so when you're coming close to the 4 GB limit, you simply press stop, then record again (you're the human "autosplit"), and it then starts a new session and you don't miss a thing.

Wayne

If I'm spending as much as the DEVA II costs, that is completely unacceptable.

[wbrisette]

If I'm spending as much as the DEVA II costs, that is completely unacceptable.

You have to remember the Deva II is a unit that has been around for 2/2.5 years. It is no longer made, and my understanding is the newer Deva IV and V units don't suffer this issue. The new units also use a custom lossless compression scheme when they record so that they can get more tracks onto less disc space. When mirrored to another device the newer units will put the file into BWF (broadcast wave format). So you really could end up with 2 types of files from the same source.

Wayne

[Tall Adam]

to shed some light on a few things in here:

the power issue - this thing takes the same adaptor as the UA-5, thus it will be powerable by our friendly walmart units (unless im horribly wrong).

2 gig limit - from my understanding this is a softwar/drive format issue, not a wav issue. 4 gig maybe wav limit, but ive certainly recorded wav's over 2gig without issue (i think my longest continuous wav yet is around 1:40) and all that with audacity (FREE!). so yeah, 2 gig is a wavelab/non NTFS thing.

tell me if im wrong on either front

[John Kelly]

to shed some light on a few things in here:

the power issue - this thing takes the same adaptor as the UA-5, thus it will be powerable by our friendly walmart units (unless im horribly wrong).

2 gig limit - from my understanding this is a softwar/drive format issue, not a wav issue. 4 gig maybe wav limit, but ive certainly recorded wav's over 2gig without issue (i think my longest continuous wav yet is around 1:40) and all that with audacity (FREE!). so yeah, 2 gig is a wavelab/non NTFS thing.

tell me if im wrong on either front

You're wrong on the wav thing.  The wav format itself is limited to 2 gigabytes.  In order to go beyond that limit you can do one of two things:  1) record in dual mono (which would give each channel a 2 gig limit), or 2) use a different file format (such as wav64 or SDIIextended) that support files over 2 gigs.

[Tall Adam]

perhaps it lies in the fact that audacity doesnt actually record to wave but to its own format and then exports to wav? but when it exports, ive certainly made wavs that are well over 2gigs

[John Kelly]

perhaps it lies in the fact that audacity doesnt actually record to wave but to its own format and then exports to wav? but when it exports, ive certainly made wavs that are well over 2gigs

Does audacity do 24 bit?  Cuz I don't see it in my Audacity prefs...

[Tall Adam]

which version? in 1.2.2 its under the quality tab i believe, 16,24,and 32 float options if i remember correctly

[John Kelly]

which version? in 1.2.2 its under the quality tab i believe, 16,24,and 32 float options if i remember correctly

I see it, I never really play with audacity much. 

I'm having trouble finding anything on Google, but I do know that wav is limited to 2 gigs.

[Tall Adam]

debate ive read about the matter on other forums led me to belive that the 2 gigs was a FAT/16/32 issue and it was resolved with NTFS, BUT wavelab and someother software maintained the limit inspite of the new formatting.

[scb]

the 2/4 gig limit is based on wav being a 32 bit format.  2^32 will give you the limit

it's a wav format thing, not an OS/filesystem thing

[Tall Adam]

cool thanks for clearing that up.

[John Kelly]

debate ive read about the matter on other forums led me to belive that the 2 gigs was a FAT/16/32 issue and it was resolved with NTFS, BUT wavelab and someother software maintained the limit inspite of the new formatting.

That doesn't make sense as to why they'd be limited to 2 gigs on other file systems.  Linux and Mac both have the 2 gig limit for wav files.  I'm sure it's somewhere else in the forum, I just can't seem to find a "spec" document about wav anywhere...

Edit - Nevermind, didn't see that Scott had chimed in.

[dklein]

fwiw, I regularly create and use wave files > 2 GB when recording and editing.
16 bit, 24 bit or 32 floating point
win 2k
fat 32
Using CEP to edit and Kristal for recording.  Wavelab won't do it.

[sygdwm]

fwiw, I regularly create and use wave files > 2 GB when recording and editing.
16 bit, 24 bit or 32 floating point
win 2k
fat 32
Using CEP to edit and Kristal for recording.  Wavelab won't do it.

what is kristal? never heard of it besides rap videos.

[dklein]

what is kristal? never heard of it besides rap videos.

I have an emagic A62 USB interface and sometimes run mics and board into it.  I needed multitrack software that supported ASIO drivers.  Cubase was glitching like crazy and pretty tough to look at so I found this freeware.  It's rock solid stable, uses very little cpu, writes the waves as it goes (so you have a playable file if something messes up), and does 24 bit.  My only beef is the meters are small and not resizable.

http://www.kreatives.org/kristal/index.php