On Fri, 11 Feb 2000, Bryan Bolden wrote:
> I am in school and I tape my classes. what I would like to do is to begin
> to keep digital copies of the taped classes on my computer without taking
> up so much disk space. what I will do is have the output jack of the tape
> recorder connected to the input jack of my sound card. I need to know the
> best sound format and a good (maybe free but I am open to buying a good
> app) application that will allow me to make digital samples with mono
> recording and at least radio quality that will not take up a lot of space
> for a taped class of about an hour.
>
> I would prefer the application run on linux but I am open to a good M$
> windows based sound application (please forgive me but I am desperate :)
vor pure voice it's enough to use bitrates lower that 32kbit/sec
I think Realaudio isn't that bad for this purpose (windows and linux encoder
exists).
for example the 16kbit codec uses 2kbytes/sec the 24kbit coded 3kbytes/sec
that means 1hour of realaudio at 24kbit = 3kbyte/sec*3600secs = 11MBytes
A 10GB disk can hold 1000 hours or speech , that is 500-1000 tapes.
John as you see compressed audio on disk isn't more expensive than tapes.
a 10GB disk costs almost nothing these days
:-)
PS: IBM just rolling out 75GB (!) 3 1/2 inch SCSI disks , EIDE versions will
follow soon. (I think in the 50GB area but dirty cheap :-) )
Benno.
