home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.acorn.tech
- Path: sparky!uunet!pipex!warwick!pavo.csi.cam.ac.uk!idg10
- From: idg10@cl.cam.ac.uk (I.D. Griffiths)
- Subject: Re: Max sound frequency possible on A440?
- Message-ID: <1993Jan12.163900.23709@infodev.cam.ac.uk>
- Sender: news@infodev.cam.ac.uk (USENET news)
- Nntp-Posting-Host: hall.cl.cam.ac.uk
- Reply-To: idg10@phx.cam.ac.uk
- Organization: U of Cambridge Computer Lab, UK
- References: <kelvin.726840889@thed.uk22.bull.com>
- Date: Tue, 12 Jan 1993 16:39:00 GMT
- Lines: 19
-
- In article <kelvin.726840889@thed.uk22.bull.com>, kelvin@thed.uk22.bull.com (Kelvin J. Hill) writes:
- |> Does anyone know what the MAXIMUM sound output frequency is on an A440 with
- |> ARM3? I am trying to generate a sine wave output at about 100 KHZ and it
- |> seemed that the Archimedes sound system might be able to manage this?
- |>
- |> Any/All advice would be appreciated....
- |>
- |> Kelvin.
-
-
- Well, theoretically, yes, you just decrease the sample period of the sound
- system, and then just play some very high notes, but I'd be very surprised
- if the actual sound hardware can come close to coping with this - it seems
- to have a certain amount of trouble working to its specification...
-
- You can get it out of the VIDC, but probably not much further, particularly
- not past the low pass filter. :-)
-
- Ian Griffiths
-