home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.sys.sgi:12661 comp.multimedia:2450
- Path: sparky!uunet!wupost!darwin.sura.net!Sirius.dfn.de!chx400!sicsun!disuns2!/!matomira
- From: matomira@disuns2.epfl.ch (Fernando Mato Mira)
- Newsgroups: comp.sys.sgi,comp.multimedia
- Subject: Audio on the Personal Iris
- Keywords: audio, PI, MULAW, conversion
- Message-ID: <1992Aug20.123614@disuns2.epfl.ch>
- Date: 20 Aug 92 10:36:14 GMT
- Sender: news@disuns2.epfl.ch
- Reply-To: matomira@disuns2.epfl.ch (Fernando Mato Mira)
- Followup-To: comp.sys.sgi
- Organization: Ecole Polytechnique Federale de Lausanne
- Lines: 21
- Nntp-Posting-Host: disun43.epfl.ch
-
- I have a couple of questions concerning the audio capabilities of the PI.
-
- a) Is it mono?
-
- b) Is the encoding 8-bit linear, or what? I have some MULAW samples
- which I convert into
- 16-bit linear, and then covert to 8-bit linear just by dividing by 256
- (no fancy filtering, sorry). All I get is noise. I hoped to get
- something horribly sounding but not so much. If the filtering is the
- problem, do you think I will manage to do the conversion in real-time?
- Any pointers to libraries?
-
- c) Is there any documentation from SGI about sound on the Personal Iris?
-
- Thanks in advance.
-
- --
- Fernando D. Mato Mira
- Computer Graphics Lab
- Swiss Federal Institute of Technology
- matomira@ligsg1.epfl.ch
-