Recording wav files

[Guest]

Hi. Can someone please spread some light on how I can reocrd a .wav file of
under a mb. I want to embed a music file suitable to send as an email. I know
that it is possible to record a complete tune in under a meg as I have two
that I have extracted from presentations that have been mailed to me but when
I make up a presentation to send on, my friends are understandably getting a
little fed up with the same 2 tunes. I have treid to record using CDex in
it's lowest bit rate mono but it still comes out at 44mb! There must be a
program that I can use that does the job as the people who made the
recordings I use, thanks to them, did it? Help?
Thanks
Charlie

 

[Andy Fish]

I don't think your question is specific to PPT so neither is my answer:

For music, you would only get 20 seconds or so into a wav file. if you have
seen a music file under a mb then it was either:

(a) not wav but something like mp3. depending on sound quality and
compression settings you could get several minutes of mono music into a
megabyte

(b) a midi file. this doesn't contain the sounds itself, but just a record
of which note was played on which instrument at what time. the sounds
themselves are reconstructed by the user's PC when he plays it. midi files
can be very small indeed

(c) *very* low quality

(d) a short sample looping round again and again

Andy

 

[Guest]

Thanks for that Andy. It can only be (c) because it is a .wav file and it is
the complete piece. If you send me an email address I can demonstrate it to
you? I don't think I need hi-fi for an email I must admit if I am putting the
presentation onto a CD then I use .wma and at a high quality. It is the email
"noise" I am looking for but don't know how to rip it at a very low quality
and with what?
Charlie

 

[Guest]

Further to that Andy I have just been to look at the properties of the piece
I have in mind and hear are the facts. The bit rate is 16kbs, the chanels are
mono, the Audio Sample Rate is 16khz and the Audio Format is MPEG Layer 3.
You are going to tell me that it is the MPEG bit that is important and you
are right. What does layer 3 mean and how do I go about recording MPEG?
Thanks
Charlie

 

[Andy Fish]

yes, mpeg is the key to it. it may have a wav file extension but it is
actually an mp3 file (mp3 stands for mpeg layer 3)

so just switch cdex to save the file as mp3, set the appropriate bitrates
and you should be done. I can't give you exact instructions for cdex because
I don't use it.

 

[Guest]

Thanks Andy. I only use CDex because one of your collegues recommended it. It
doesn't seem to get the file down to the size of the one I have stripped from
an incoming presentation. If you were in my place what program would you use?
Charlie

 

[Andy Fish]

To be honest I can't recommend a specific program because I've never tried
to make low bitrate files

 

[Guest]

Hi Andy
I have now. If any one asks this question again point them towards the
excellent product by NCH of Express Rip. It is a free download from this
site.
http://www.nch.com.au/rip/index.html It allows you to rip in any format
at any bit rate mono or stereo. great stuff.