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Author Topic: confused on memory card record times  (Read 4409 times)

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Offline willndmb

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confused on memory card record times
« on: July 19, 2006, 02:45:22 PM »
sometimes the more i look into stuff the more lost i become

i am trying to figure out how to come up with the record times/GB needed to hold the time, for different bitrates and such
can anyone tell me how to do it, or easier yet just tell me flat out the answer....
16/44
24/48
24/96
thanks
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
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Offline kgreener

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Re: confused on memory card record times
« Reply #1 on: July 19, 2006, 02:51:09 PM »
this might help:  http://www.tascam.com/Products/hdp2_rectimes.html

Sample Rate     44.1k/16-bit  48k/16-bit   48k/24-bit  96k/24-bit   192k/24-bit
512MB CF card  50 min         46 min        31 min        15 min         7 min 
1GB CF card     1.6 hrs         1.5 hrs         1 hr           30 min        15 min 
2GB CF card     3.3 hrs         3.1 hrs         2 hrs          1 hr            30 min 
4GB CF card     6.7 hrs         6.2 hrs         4.1 hrs       2 hrs            1 hr 
8GB CF card    13.5 hrs        12.4 hrs        8.2 hrs       4.1 hrs         2 hrs 
« Last Edit: July 19, 2006, 02:53:27 PM by kgreener »

Offline Oysterhead00

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Re: confused on memory card record times
« Reply #2 on: July 19, 2006, 02:52:23 PM »
That's a great question and there should be a sticky made with the various file sizes for Flash/HD/HiMD recording devices.  I love to see the ads that say you can "Record up to 40 hours of audio on the supplied 32MB card"...must be 8kbps super compressed mono MP3s or something :)
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Offline willndmb

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Re: confused on memory card record times
« Reply #3 on: July 19, 2006, 02:54:48 PM »
wow thanks a lot +T
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline kgreener

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Re: confused on memory card record times
« Reply #4 on: July 19, 2006, 02:55:32 PM »
back atcha!

Offline Brian Skalinder

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Re: confused on memory card record times
« Reply #5 on: July 19, 2006, 04:22:37 PM »
That's a great question and there should be a sticky made with the various file sizes for Flash/HD/HiMD recording devices.

It's not stickied - too many threads of interest to warrant stickying  them all - but it is in the Archive:

Want to know what size your 16-bit or 24-bit files will be on hard drive at different sample rates?  Here you go...

Bit-Depth      Sample Rate (in kHz)       MB Per Track-Minute
16                  44.1                                 5
16                  48                                    5.5
24                  44.1                                 7.6
24                  48                                    8.25
24                  96                                    16.5
24                  192                                  33

A typical CD-R can hold just over 21 track minutes of 24/96 audio...

And I've added kgreener's post to the Archive thread as well:

this might help:  http://www.tascam.com/Products/hdp2_rectimes.html

Sample Rate     44.1k/16-bit  48k/16-bit   48k/24-bit  96k/24-bit   192k/24-bit
512MB CF card  50 min         46 min        31 min        15 min         7 min 
1GB CF card     1.6 hrs         1.5 hrs         1 hr           30 min        15 min 
2GB CF card     3.3 hrs         3.1 hrs         2 hrs          1 hr            30 min 
4GB CF card     6.7 hrs         6.2 hrs         4.1 hrs       2 hrs            1 hr 
8GB CF card    13.5 hrs        12.4 hrs        8.2 hrs       4.1 hrs         2 hrs 
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Offline willndmb

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Re: confused on memory card record times
« Reply #6 on: July 19, 2006, 07:33:34 PM »
thanks
the one originally posted above is much easier to understand for me though
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline JasonSobel

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Re: confused on memory card record times
« Reply #7 on: July 19, 2006, 07:36:42 PM »
this is something that I put together a while back:
http://24bit.turtleside.com/pcm.wav.file.sizes.pdf
it also shows how to calculate everything as well, in case you are interested...

Offline willndmb

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Re: confused on memory card record times
« Reply #8 on: July 19, 2006, 10:18:43 PM »
nice
thanks again to everyone its been a huge help
Mics - AKG ck61/ck63 (c480b & Naiant actives), SP-BMC-2
XLR Cables - Silver Path w/Darktrain stubbies
Interconnect Cables - Dogstar (XLR), Darktrain (RCA > 1/8) (1/8 > 1/8), and Kind Kables (1/8f > 1/4)
Preamps - Naiant Littlebox & Tinybox
Recorders - PCM-M10 & DR-60D

Offline Oysterhead00

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Re: confused on memory card record times
« Reply #9 on: July 22, 2006, 06:37:30 PM »
this is something that I put together a while back:
http://24bit.turtleside.com/pcm.wav.file.sizes.pdf
it also shows how to calculate everything as well, in case you are interested...

Really cool if you're at a festival and want to calculate if you should tape the next couple bands at 24bit or 16bit and ensure you have enough space for the headliner!
Big Rig:  SMK-H8K/U or MSH-1O > PS-2 > AD-20 > CJB3
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ISO: Cheap iRiver 120 or 140 :)

BobW

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Re: confused on memory card record times
« Reply #10 on: July 22, 2006, 11:58:31 PM »
More good info, courtesy of Sound Devices:
http://sounddevices.com/tech/recordtime.htm

N.B.- The Tascam times are for stereo, so half them for post production matrix 4 channel recordings or double them for mono.
« Last Edit: July 23, 2006, 12:01:13 AM by _Bob_ »

 

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