New Echo chips (vendor)

[scratch]

stumbled accross this while looking for SRAM information, I don't know if there are any North American distributors, but they look like interesting chips.

http://int.stc.itri.org.tw/eng/business/technical-service/audio-ics.jsp?tree_idx=0100

[nelson]

interesting...

[Peter Snowberg]

VERY COOL! THANKS!!!!!

[petemoore]

I checked out the data sheet, looked pretty cool, even better now that someone else posted a kudos.
 I've got a nice verbdelay, but don't have a nice echo. And am wondering about how different digichips interact, whether there is loss or introduction of wierdness when one echo chip drives the next one.
 Not that I'm going to even build using that chip, just cool to see that they're out there for builders.
 That would of course about require a PCBoard
 Getting a complex sounding [natural] reverb, and an echo that can go to a nice echo with 1 switch...that'd be cool.

[DiyFreaque]

At first glance anyway, the exciting thing for me is that a few of these will go lower in delay time than the PT devices.  In surround mode the ES56028 goes as low as 4.1 ms.  The caveat is that the delay range spans different range settings (it's not clear what range externally controlling the VCO covers).  Surround mode defeats the on chip regeneration input (which could be overcome externally), but even with that, providing the deviation range of external control is enough, one could always use it for chorus.

Has anybody asked about distributors yet?

Cheers,
Scott

[Arn C.]

I just emailed the company about vendors here in the U.S.

Arn C.

[puretube]

ooops - missed this thread coz of vacation...

that page looks like the "old" princeton-site...

been waiting on answers from princeton, since years!

does/did steve/smallbear read this topic???

[Fp-www.Tonepad.com]

The whole thing feels like the Princeton chips/site... Further investigation is needed

Some very interesting ICs.

Fp

[R.G.]

It should look like the old Princeton site. The company makes old Princeton chips in its own foundry in China. I picked up their literature at the Hong Kong electronics fair last year. I'm not sure whether they're a pseudopod of Princeton or bought the Princeton rights, or some other explanation entirely.

Their catalog was copier printed and hand stapled when I was there. Maybe they just ran out of the printed ones.

[puretube]

anybody else had "funny" experiences, trying to watch/download their datasheets?

reminds me of the princeton site some years ago.


let`s see, whether the email-support is like that old one, too...

[smallbearelec]

I'll be glad to call the guy for pricing asnd samples. Which of these chips would be of most interest?

[Paul Perry (Frostwave)]

Steve, I havn't looked at that particular site, but usually guys that make that stuff also make those "gender bender" phone chips that do pitchshift for people who don't wnt to be recognised on the phone. As in http://www.personalarms.com/telephone_voice_changer_2.htm I'd certainly be interested in a supply of these, rough as they may be, for experimanting with octave downshifting.

[puretube]

that`d be their ES56061 ("digital key control");

their ES56028 btw. is drop-in pin-to-pin compatible with PT2398

(though there are some typos in the data-sheet...)

[Peter Snowberg]

I've breen drooling a bit over the chip that Paul is asking about, which is the ES56061 Digital Key Control.

Paul, feast your eyes on this one.

It's a microcontroller project, but a simple one at that.   My user interface idea is a 3 digit LED 7 segment display, two LEDs, and three pushbuttons. Two buttons are semi-tone adjust up and down with auto-repeat when held after an inital delay. This chip has two algorithms it uses depending on adjustment amount. Half the settings can use either algorithm. The 7 segment display would read -20 to 20 for an adjustment amount and the two LEDs would indicate the algorithm in use. If more than one were available given the setting, the third button would toggle between them. The LEDs might glow very dim when not on for settings where either algorithm was available. The current setting and selection of algorithm would be written to e2prom or FLASH. The next step is to then do two pitch modders in the same box and select the one you're adjusting with a toggle switch.  How about three using a center off toggle? 

[Arn C.]

I emailed these guys again this past thursday and still no response!

Peace!
Arn C.

[Dave_B]

Paul, feast your eyes on this one.

It's a microcontroller project, but a simple one at that.  

So is the micro part just a shift register with a clock and a strobe?    Unless I'm not getting it, this would be easy to do with a $3 PIC.

Dave

[scratch]

Steve, my preference would be for the ES56031 ...

[puretube]

"A" european distributor promised to send free Princeton samples (yes: after I offered to pay whatever they cost...) 13 months ago,
"as soon as the manufacturer`s production support would react"...

[puretube]

bump (from a patient guy...)

[JimRayden]

bump (from a patient guy...)

Exactly one day less than a year. You're good.

---------
Jimbo