Looking for a sound generator chip

Hi, Tim:-

Your easiest solution is probably the Siemens (Infineon) SAE 800.

If that doesn't meet your needs, you could consider rolling your own with a micro+amplifier.

Best regards, Spehro Pefhany

Just have the patients call the nurse's cell phone. ;-)

Cheers! Rich

Or maybe a requiem ?:-)

...Jim Thompson

Hi, I'm looking for an IC to generate a simple pleasant tone to use in a medical product.

The tone will be for a patient call button. A simple chime or pleasant gong will do.

I cannot find anything like this out there.

Can anybody point me to a manufacturer of such chips?

Thanks, Tim

Siemens (now infineon) SAE800 In stock at digi-key Does 1,2 or 3-tone 'bongs' Sound is a little on the crunchy side - the steps in the decay are slightly noticeable.

You may be able to do better with a little microcontroller, PWMing the waveform and envelope from a lookup table.

Drum set functions too. Maybe he could get it to play some appropriate Chopin if the EKG signal so indicates. ;-)

Best regards, Spehro Pefhany

ISD, now owned by the Taiwan-based company Winbond. Pretty crappy sound quality, IMHO. They use EEPROM cells to store analog voltages.

Winbond also have polyphonic ringtone ICs that will do MIDI synthesis as well as ADPCM.

Hey, why not hire a talented musician/composer to come up with a custom MIDI gong composition that will wind up and drop-kick the patients through the goal posts of good health?

Best regards, Spehro Pefhany

Best regards, Spehro Pefhany

I abused a greeting card once for that porpuse (the once with a built-in tone generator) rw

I have a PIR-actuated battery-powered annunciator that I bought from some place because it was just too cheap to pass buy. It records a few seconds of fairly high quality sound for the message, and the message plays whenever the PIR sensor sees someone passing nearby. I got an amusing sound bite to greet visitors with a brief visit to the bathroom.... it was pretty funny for a few days anyway.

Best regards, Spehro Pefhany

Hello Tim,

That's often a high class market. So, if you somehow have to immitate a Tchaikovsky or Brahms sequence instead of a boring "boing boing boing" this may be the ticket:

Regards, Joerg

maybe a solid state square wave oscillator with a remote trigger, each remote could have an led as well. no need to use a sledge hammer when a fart will do.

Hey Rich,

What about using a voice recorder chip. Radio Shack sells them. You can record any fancy sound you like. Can't tell you about audio quality however.

Good luck.

Chuck

Rich Grise wrote:

Hello Ryan,

We have a bottle opener that mumbles "Have a beer ... glug, glug, glug...". But I doubt its chip would qualify in a medical product ;-)

Regards, Joerg

A few years back, the company gave out alarm clocks (cheap ones, of course) to all the employees for some reason or the other. One enterprising employee 'borrowed' a few of them, and, after setting to different times, hid them around the bosses office. I cabinents, taped under tables, above the ceiling tiles, in the ventilation duct...

Was entertaining as he tore his office apart looking for all of them!

Charlie

Or "Taps" if there is no EKG signal? ;-)

I had about 100 of those annoying musical greeting cards with dead batteries. I thought about putting a 1N34 diode, cap and short wire antenna on them, then leaving them scattered all over a AM radio station to annoy the staff, but on second thought I decided that by the next day they would either level the building, or rip out everything and throw it in the parking lot till they found all of them.

Dear Tim,

We do have standard sound chip for your production. Can you pleased tell us your operation voltage and QTY request ?

We do can send you simple for engineering approval !

Thanks !

Patrick Cheung Town Target Technology Limited Address : D3, 11/F., Superluck Industrial Building, Phase II, 57 Sha Tsui Road, Tsuen Wan, Hong Kong. Tel : 2505-5838 Fax : 2505-8121 E-mail : snipped-for-privacy@towntarget.com.hk Web-site :

"Tim" ¼¶¼g©ó¶l¥ó·s»D:bz5Me.2757$ snipped-for-privacy@newssvr23.news.prodigy.net...

Charlie Edmondson wrote:

Back in the early '80s I worked for a large CATV systems operator. I took care of the head end and repaired all their electronics while trying to stay ahead of destructive customers and subcontractors who constantly dropped equipment. The regular feild staff kept bragging that they were going to pull an outragous stunt on the boss when he got back from vaction, but as usual their plan was quite lame. I told them they couldn't even plan a real stunt, let alone pull one off. They told me I couldn't come up with anything better so i smiled and told them to go to the lubmer yard to pick up two sheets of drywall and a 10 foot piiece of baseboard that matched the existing baseboard, a gallon of readymix drywall compound and paint to match the walls so they could cover both doors to his office. Then we would get everyone to pretend they had no idea who he was when he got back. You should have seen the looks on their faces! ;-)

My next suggestion was to move all his office furniture and new color TV into our warehose and bring a bunch of the empty and nearly empty wood spools to replace the furniture, and put a decripet old 12 inch B&W TV in his office. It turned out that they were all talk and no action. ;-)

I was a Broadcast engineer in the early '70s at a military TV station in Alaska. The on air "Talent" had to wear their dress uniforms for the newscasts, but they would sit behind the news desk in their boxers because of the heat from the lights. When I had to run an "Actuality" (A report recorded off the AFRN network and used with 35 mm slides) they would jump up and shadow box or goof around. Quite often they were late getting back in their seats so it looked like I couldn't switch cameras on cue. After a week of their crap I rewired the studio monitors so they didn't follow the on air signal. That night I got half way through their first long "Actuality" and switched the video and audio monitors to the preview circuits. They froze and looked at the dead speakers first, and then at themselves on a coule video monitors that showed them on air and out of uniform. They freaked out and ran behind the news desk as I switched the monitors back to the on air signal. As soon as the news was over they were in the control room screaming at me and calling the station amanger about what they thought I had done to them. He had no idea what they were talking about and assured them that he had watched the entire newscast, and no, they were not seen in their boxers. I was grinning when they turned back to me and told them that they had recieved their one and only warning to stay seated during the newscast. I wonder why people always told me that I wasn't very "GI"?

BTW, they reminded me of Les Nesman of WKRP, and Ted Baxter on the Mary Tyler Moore shows.