Formant Speech Synthesis Analog Talk Generator 1968 - Page 1
Forum section: electronics / projects

author: oz2cpu
author_rank: Frequent Contributor
timestamp: July 13, 2022, 07:40:34 am
content: Formant Speech Synthesis Analog 2 sec Talk GeneratorThis machine is amazing, all analog, transistor based, main design 1968here is part 1, also contain links to all other video parts, and machine schematics and tech explain:https://youtu.be/kr04okF0oNg

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: July 15, 2022, 12:05:28 am
content: Pretty cool, but how abouthttps://youtu.be/TsdOej_nC1M

author: oz2cpu
author_rank: Frequent Contributor
timestamp: July 15, 2022, 08:45:14 am
content: WOW tanks Alexgreat link, looks like they had some kind of impressive budget, both in money and man hrs,mostly i am impressed by the typewriter skills, it is like learning how to play a brand new type of instrumentour machine is only 30 years later :-) and made on a much smaller budgetI do think a few others where made in those 30 years, if any one got links please post them,i will be super happy to share them with my teamLatest development : Power Supplies have now been thru my lab, all caps replaced, deep test and adjustment, cleanupnow we are ready to install them, and power upthe next video is all ready scheduled for releaseso stay "tuned"

author: jonpaul
author_rank: Super Contributor
timestamp: July 15, 2022, 09:32:23 am
content: Homer Dudley inventor of compression and speech analysis and synthesis worled at bell Laboratoires in 1920s..1930s.His vocoder was the first 10x compression using 10 bands Spectrum and pitch.The 1939 World's Faire in NYC had the VODER synthesizers demo, in the second video.All modern digital media and mobiles use Dudley's inventions in some form.Bon SoiréeJon

author: Kjelt
author_rank: Super Contributor
timestamp: July 15, 2022, 10:01:52 am
content: Only analog or does the IBM7094 from 1962 with its text to speech synthesizer also count ?

author: Bicurico
author_rank: Super Contributor
timestamp: July 15, 2022, 11:30:50 am
content: I find this one amazing, somehow.

author: Kjelt
author_rank: Super Contributor
timestamp: July 15, 2022, 11:43:35 am
content: Quote from: Bicurico on July 15, 2022, 11:30:50 amInteresting but I can not stand listening to it for over 30 seconds.

author: oz2cpu
author_rank: Frequent Contributor
timestamp: July 15, 2022, 11:48:49 am
content: >Interesting but I can not stand listening to it for over 30 seconds.one persons music, another see it as noise..it least that is how i feel about modern pop / rap when they use vocalsynth all the time,lucky scan for next radio channel is only 2cm away.

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: July 15, 2022, 01:52:27 pm
content: The Voder came just in time for WWII.https://en.wikipedia.org/wiki/SIGSALY

author: eutectique
author_rank: Frequent Contributor
timestamp: July 15, 2022, 10:34:10 pm
content: These go to eleven!

author: David Hess
author_rank: Super Contributor
timestamp: July 16, 2022, 12:03:25 am
content: I could see implementing that using the same method Barrie Gilbert developed at Tektronix for the analog alphanumeric readout on their 7000 series oscilloscopes.

author: jonpaul
author_rank: Super Contributor
timestamp: July 16, 2022, 10:47:56 am
content: Rebonjour:SIGSALY 1942 was the pioneering unbreakable voice scrambler used by Churchill, McArthur, Roosevelt, for secure strategic radio telephone conferences.https://www.cryptomuseum.com/crypto/usa/sigsaly/index.htmDesigned at Bell Telephone Laboratories with Homer Dudley, Harry Nyquist, Claude Shannon....later unbreakablilty checked by Alan Turing.Voila, my Feb 2019 IEEE Spectrum articles on SIGSALY: Reconstruction of 1942 first ADC with tubes (valves/Ampoules)https://spectrum.ieee.org/rebuilding-a-piece-of-the-first-digital-voice-scramblerhttps://spectrum.ieee.org/sigsaly-analogtodigital-converter-construction-and-debuggingBon WeekendJon

author: rsjsouza
author_rank: Super Contributor
timestamp: July 16, 2022, 09:02:56 pm
content: Quote from: jonpaul on July 16, 2022, 10:47:56 amThese are very nice articles, Jon. A lot of effort and love was put into the project.

author: oz2cpu
author_rank: Frequent Contributor
timestamp: July 23, 2022, 08:22:05 am
content: part 2 is now releasedhttps://youtu.be/fIYiOACH-iw

author: oz2cpu
author_rank: Frequent Contributor
timestamp: August 17, 2022, 07:18:31 am
content: part 3 now releasedtoday we installed the repaired powersupplies and powered up the signal generator and signal smooth units, we figured how it works with time pr sound and smooth value pr time unit, and made a plan for new fix..https://youtu.be/BUM-7feIVCE

author: Terry Bites
author_rank: Super Contributor
timestamp: August 24, 2022, 03:58:30 pm
content: So dull- lets have some audio action and then decide if we might be interested.

author: oz2cpu
author_rank: Frequent Contributor
timestamp: August 24, 2022, 05:34:43 pm
content: I am sorry Terry, but there is at least one more video, before this is going to happen,we need to solve a few other things first.

author: Terry Bites
author_rank: Super Contributor
timestamp: August 24, 2022, 05:37:47 pm
content: Oh you tease!

author: oz2cpu
author_rank: Frequent Contributor
timestamp: August 31, 2022, 03:54:21 pm
content: Terry !!i got good news, yesterday we went working on the talking machine again,we found an old HI8 video tape from 1996, and a 1/4 audio tape from 1976,so far i have only been thru the Hi8 video, and found a demo sequence of this machine,made by one of the proffessors working there, where it talks !!so YES we got it, i am going to puplish it ASAPso you will hear it talk

author: oz2cpu
author_rank: Frequent Contributor
timestamp: September 03, 2022, 09:50:40 am
content: Next video is releasedPart 4 (LED time pulse inducators added)https://youtu.be/UBJV0JloUeE

author: oz2cpu
author_rank: Frequent Contributor
timestamp: September 03, 2022, 10:24:50 pm
content: BY THE WAY : NEWS : the audio tape is now checked, it is in good shape, contain tons of cool talk stuff made by this machine,from 1967 and up to 1976, they filed a note on all recordings together with the tape. soon i will get the recording in digital format.

author: oz2cpu
author_rank: Frequent Contributor
timestamp: September 13, 2022, 08:59:39 am
content: Formant Speech Synthesis Analog 2 sec Talk Generator (part 5 Audio Tape)https://youtu.be/IwCp8jWdqBkHere is part 5 in our video series about this fantastic machine,The audio tape full content is HERE, it was made in 1967 to 1976 as explained in video part 4.We are sorry all audio is in DANISH, except the song : "he is a jolly good fellow" starting at 01:23, i think the best part audio setting is at 05:10 they say Phonetik Københavns universitet.(English and Danish subs by cass)(Big thanks to Peter A. for all the help with tape recorders)Remember this machine can only be programmed to generate 2 sec in one go, assuming all parts of the speech contained max time settings, this means many parts of this audio tape, they used many settings to make a long speech, each programming is done by hand on all the many potentiometers and switches ! it will take quite some time to perform.

author: oz2cpu
author_rank: Frequent Contributor
timestamp: September 27, 2022, 06:46:25 am
content: here is part 6, the HI8 video tape from 1997 if you want to see the talking machinego can skip directly to 12:00I am sorry but this video is entirely in Danishhttps://youtu.be/nPlS-4EDutYMeanwhile : we are installing the LED indicators for the selected pulse.We are also working on the synthesizer unit, Formant 1 is missing, and filters doint peak as supposed,noise generators are working, modulators and oscillators ok.

author: oz2cpu
author_rank: Frequent Contributor
timestamp: November 10, 2022, 09:09:13 am
content: here is part 7, new video release todayhttps://youtu.be/KuHZhfmOyfQit is alive again..

author: oz2cpu
author_rank: Frequent Contributor
timestamp: November 23, 2022, 09:43:53 am
content: part 8 about the synth moduleis now releasedhttps://youtu.be/lw7UFK0YmJ4

author: inse
author_rank: Super Contributor
timestamp: November 23, 2022, 10:43:15 am
content: The tube already told me 👍

author: oz2cpu
author_rank: Frequent Contributor
timestamp: January 26, 2023, 08:30:55 am
content: part 9 is out now, only a short 3 mins cliphttps://youtu.be/41Iz12XBUzsnow it can be "programmed" to say words