Re: Talking Images for 64-bit Laptop

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Don't press enter.  Wait for the three tones then wait for speech to
happen.


-- Jude <jdashiel at panix dot com> "There are four boxes to be used in
defense of liberty: soap, ballot, jury, and ammo. Please use in that
order." Ed Howdershelt 1940.

On Tue, 26 Sep 2023, Linux for blind general discussion wrote:

> I am sorry, but I have bad news.  I downloaded the image, sent it
> to a 32-GB usb card and tried it.  The system immediately found
> the EFI partition and played the 3 notes in ascending order
> within 5 or 10 seconds after powering on.  I pressed Enter and
> waited and waited and waited, left the room for a few minutes,
> came back, waited some more but that was the last sound.
>
> 	Later, it occurred to me that I might get it to talk if
> there was a usb sound card since those devices are in common use
> everywhere.
>
> 	I now had this lap top with a 4-port extender containing
> a full-size keyboard and the 128-GB thumb drive that was the
> target of the Linux installation so why not also plug in a usb sound
> card.
>
> 	I did and slint found that card.  This is a very good way
> to set this part of the installation since the person doing the
> install must respond.
>
> 	I did make several later tries and confirmed that this
> lap top's native sound interface is like a lot of native sound
> interfaces in that it is too proprietary for it's own good.
>
> 	One of my favorite items when doing this sort of thing is a
> portable AM radio to more or less get an electroencephalogram of
> whether the computer seems to still be alive.  One tunes to a
> blank spot near the low end of the AM band if there is no radio
> station there and listens to the static that the circuitry in the
> computer makes as it computes.
>
> 	If something is wrong and the computer locks up, the
> crackle, pop, beep and squeak abruptly stop and there is nothing
> but the hiss of the radio.
>
> 	The computer, in this case, doesn't lock up but slint
> never sees a viable native sound interface to probe.  I hear lots
> of zips, pops squeaks and beeps of all kinds indicating that the
> computer is still alive and well but not talking.  Adding the usb
> sound card gives slint something it can recognize as a sound
> interface.  It did start voicing the screen just like it should
> but it should have found the native interface automatically.
>
> 	I have another Debian 11 distribution that uses the same
> concept of sending an English message to every sound card asking
> one to press enter if this is the correct card and it talks all
> the time through the installation process.
>
> 	For now, I am using that installer since it is the same
> debian version I wanted anyway which is bullseye or debian 11.
>
> 	That install image does find the HP lap top's native
> sound interface.  When the installation is complete, it has
> produced some unpleasant surprises on other systems I have used
> it on if their native sound cards were particularly complex.  One
> system, for instance, talked all the way through the installation
> but wouldn't reliably talk after booting to the installed system.
> Simply unplugging the speaker or plugging in a set of headphones
> would kill the audio.  It turned out to think that hdmi was
> supposed to be the correct output.
>
> 	If this helps any, this lap top appears to have no
> trouble sending the musical notes at the boot time.  The oldest
> PC's had a system for making noises which you are probably very
> familiar with which used a timer-counter integrated circuit that
> was fed from a roughly 1-MHZ clock.  The 16-bit counter in the
> chip is fed with some constant depending upon what note or pitch
> one needs.  There is also a gate which connects pure DC to the
> speaker or nothing if we are on the low half of the cycle.  Tones
> are produced by stuffing this constant in to the counter and the
> counter counts down to 0 and then restarts after sending a pulse
> to the speaker.
>
> 	You can get an amazing number of noises out of such a
> circuit from Morse Code to at least video-game quality music.
>
> 	I am guessing this lap top has some modern version of
> that noise-maker timer-counter-switch in order for the music to
> come  through but obviously, we need to find the built-in sound
> card for speech to work.
>
> 	I am certainly not complaining about slint.  As one who
> likes to tinker with computers, PIC microcontrollers and radios,
> I know how difficult it is to make just about anything work over
> the broad range of situations that public users produce so, if
> there is any information I can provide to help, I am glad to do
> so.
>
> Linux for blind general discussion <blinux-list@xxxxxxxxxx> writes:
> > Hi Martin,
> >
> > sorry for the mistake in the Handbook. Of course I should have written:
> >
> > wget https://slackware.uk/slint/x86_64/slint-15.0/iso/slint64-15.0-5.iso
> > wget
> > https://slackware.uk/slint/x86_64/slint-15.0/iso/slint64-15.0-5.iso.sha256
> >
> > then:
> > sha256sum -c slint64-15.0-5.iso.sha256
> >
> > I will fix that and/or make a link like slint64-15.0-latest.iso
> >
> > Cheers,
> > Didier
>
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>
>

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