Article View: comp.sys.acorn.tech
Article #906Re: Max sound frequency possible on A440?
From: I.D. Griffiths
Date: Tue, 12 Jan 1993 16:39
Date: Tue, 12 Jan 1993 16:39
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1338 bytes
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
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Newsgroups: comp.sys.acorn.tech Path: arc1-ca.pugleaf.net!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