Alesis 7-51-0214-b User Manual

 

3.  Archiving:  If  you’re capturing a special recording that may 

have some historical value in the future, it makes sense to 

capture it with the highest level of  technical accuracy.  

 

Alesis has designed your IO14/26 to sound excellent at all 

sample rates.  Decide for yourself  if  the benefits and 

tradeoffs are worth it for a particular session. 

 

 

 

 

1.  Disk Usage – Recording at high sample rates consumes hard 

disk space much more quickly than standard rates.  The 

following table describes sampling rate vs. disk usage for a 

60-second snippet of  monophonic (1 track) audio: 

 

Length 

Bit Depth  Sampling Rate  Disk Usage 

60 Seconds 

24 bit 

44.1k   

7.9 MB 

60 Seconds 

24 bit 

48k 

 

8.6 MB 

60 Seconds 

24 bit 

88.2k   

15.9 MB 

60 Seconds 

24 bit 

96k 

 

17.3 MB 

60 Seconds 

24 bit 

176.4k  

31.8 MB 

60 Seconds 

24 bit 

192k   

34.6 MB 

 

You can see how this may become a problem on large 

musical projects.  For example, whereas a 5-minute song with 

16 channels of  24-bit audio would require up to 635MB to 

record at 44.1k, the same song would need approximately 

2.54 gigabytes of  storage if  you’re recording at 176.4k! 

 

We recommend that you take a look at your available hard 

disk resources when deciding which sampling rate to use.  

You can use the following formula to estimate the total disk 

space required for a song: 

 

 

So… Our hypothetical 5-minute song would be calculated in 

the following way: 

 

300 sec x 16 channels x 44,100 x 3 = 635,040,000 byes (about 

635 MB) 

 

That same song recorded at 176.4k would be: 

 

300 sec x 16 channels x 176,400 x 3 = 2,540,160,000 bytes (or 

2.54 GB)