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|---|---|
| From | Paul Rubin <no.email@nospam.invalid> |
| Newsgroups | comp.arch.embedded |
| Subject | Re: Speakers |
| Date | Thu, 05 Nov 2020 21:57:58 -0800 |
| Organization | A noiseless patient Spider |
| Lines | 17 |
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Rick C <gnuarm.deletethisbit@gmail.com> writes: > Yeah, this is to produce informative tones, not speech or music. Oh, this sounds like an alarm for your ventilator. First thing I thought of was a Sonalert but those apparently are around 2 khz. Anyway, maybe try this: https://www.adafruit.com/product/1739 Rather than a 250hz tone you can get a hard-to-ignore effect by pulsing a higher frequency tone at 250 hz. This looks insane and mentions medical devices as an application area: https://www.sparkfun.com/products/16454 Many other ones here: https://www.sparkfun.com/categories/347
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Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-05 14:25 -0800
Re: Speakers Paul Rubin <no.email@nospam.invalid> - 2020-11-05 14:56 -0800
Re: Speakers John Speth <johnspeth@yahoo.com> - 2020-11-05 18:47 -0800
Re: Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-05 21:15 -0800
Re: Speakers Paul Rubin <no.email@nospam.invalid> - 2020-11-05 21:57 -0800
Re: Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-06 08:08 -0800
Re: Speakers Paul Rubin <no.email@nospam.invalid> - 2020-11-06 14:59 -0800
Re: Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-06 17:48 -0800
Re: Speakers Paul Rubin <no.email@nospam.invalid> - 2020-11-07 01:02 -0800
Re: Speakers upsidedown@downunder.com - 2020-11-07 06:47 +0200
Re: Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-06 21:23 -0800
Re: Speakers Michael Kellett <mk@mkesc.co.uk> - 2020-11-07 13:12 +0000
Re: Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-07 08:05 -0800
Re: Speakers Rick C <gnuarm.deletethisbit@gmail.com> - 2020-11-07 18:35 -0800
Re: Speakers Paul Rubin <no.email@nospam.invalid> - 2020-11-07 21:57 -0800
Re: Speakers "Mat Nieuwenhoven" <mnieuw@zap.a2000.nl> - 2020-11-08 10:03 +0100
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