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- Newsgroups: comp.sys.acorn
- Path: sparky!uunet!pipex!pavo.csi.cam.ac.uk!idg10
- From: idg10@cl.cam.ac.uk (I.D. Griffiths)
- Subject: Re: Ok, so where do I get a MOD player that doesn't play at w
- Message-ID: <1992Dec13.025218.29513@infodev.cam.ac.uk>
- Sender: news@infodev.cam.ac.uk (USENET news)
- Nntp-Posting-Host: hall.cl.cam.ac.uk
- Organization: U of Cambridge Computer Lab, UK
- References: <JKH.92Dec9011740@whisker.lotus.ie> <723916754snx@cryton.demon.co.uk>
- Date: Sun, 13 Dec 1992 02:52:18 GMT
- Lines: 19
-
- In article <723916754snx@cryton.demon.co.uk>, altman@cryton.demon.co.uk (Hugo Fiennes) writes:
-
- ... stuff about Tracker timing deleted ...
-
- |>On mine (when I was writing it ;-) ) I tried using the 100Hz ticker vector,
- |> but this was worse than useless, appearing (on RO2 anyway, not tried it
- |> for years now) to be called around 97-98 times a second, rather irregularly,
- |> giving a very lumpy playback. There is a 'user' timer on the IOC, but
- |> RISC OS has no claim mechanism for this so there can be incompatibilities
- |> between programs (especially sound related ones).
- |>
- |> Hugo
-
-
- Did you ever try my suggestion of basing timings off sound DMA buffer events?
- These presumably are reasonably regular (we hope) and you won't getter any
- better temporal resolution than that out of the sound system.
-
- Ian Griffiths
-