[squeakland] File error on open and sound reverb problem again

Harness, Kathleen kharness at illinois.edu
Mon Nov 14 07:36:24 EST 2011 

Steve,
Thanks for the video, your explanation is very clear.
Kathleen
________________________________
From: squeakland-bounces at squeakland.org [squeakland-bounces at squeakland.org] on behalf of Steve Thomas [sthomas1 at gosargon.com]
Sent: Sunday, November 13, 2011 11:10 PM
To: Mike Lee
Cc: squeakland.org mailing list
Subject: Re: [squeakland] File error on open and sound reverb problem again

Mike,

I created a short video on How to Debug an Etoys Script<http://www.youtube.com/watch?v=trNMUYRCKRY&feature=youtu.be> which includes how to find and change the beep code.  When you save the project, it will ask you to save the change set, say yes, and your code changes are saved.

Credit goes to Karl Ramberg for the piece of code I swiped to stop the reverb.

Stephen

On Sun, Nov 13, 2011 at 10:55 PM, Mike Lee <curiouslee at gmail.com<mailto:curiouslee at gmail.com>> wrote:
Stephen,

I've tested the file you modified on

- Mac OS X 10.6.7 / Etoys 4.1.1
- Windows XP / Etoys 4.1.1
- Windows 7 / Etoys 4.1.1
- OLPC Sugar 11.3.0 / Etoys 113

The fix holds except that on Windows XP & 7, the reverb comes back
intermittently. That is fine for now.

I would like to find out how to "modify beep" myself (where to find
the beep code) at some point so I can apply your code change to
another file if needed.

I can now proceed with having the volunteers help us on Mac and PC
machines. I will also be able to load demo files on XO-1 and XO-1.5
laptops to do demos at the Zambian Embassy in Washington, D.C.

I will credit the posters here in future announcements.

Mike


On Sat, Nov 12, 2011 at 11:13 PM, Steve Thomas <sthomas1 at gosargon.com<mailto:sthomas1 at gosargon.com>> wrote:
> Mike,
>
> Attached is a project that I think may solve your problem.  I modified beep
> to add the line highlighted below.
> beep: anObject
> "Play given sound or at least beep."
> | sound |
>     SoundPlayer stopReverb.
> anObject isString
> ifTrue:
> [sound := SoundService default playSoundNamedOrBeep: anObject.
> (sound respondsTo: #stopGracefully)
> ifTrue: [self costume setProperty: #playingSound toValue: sound]]
> ifFalse:
> [SoundPlayer resumePlaying: anObject quickStart: true]
>
> Also  did some testing:
>
> 1) Open Etoys 4.1 build 2390 (Mac OSX 10.6.8)
> 2) Open Preferences window
> 3) Check soundReverb (NOT set, like that 1985 code ;))
> 4) Open Mike's project
> 5) Check soundReverb Preference in Preference WIndow (NOT Set)
> 6) Click TestSound Play Button (while Preference Window Open)
> 7) Step 6 causes soundReverb Preference to be set
> One way to get rid of the Reverb is to execute SoundPlayer stopReverb
> The problem is how to do it when project starts/opens.
> 1) Tried World script set to run on "opening" (Does NOT work, doesn't
> execute when project opens)
> 2) Tried Book Script set to run on "opening" (Does NOT work, doesn't execute
> when project opens)
> 3) Tried Page 1 Script set to run on "opening" (Does NOT work, doesn't
> execute when project opens)
> 4) Tried Page 2 Script set to run on "opening" (Does work, doesn't execute
> when project opens)
>
> Stephen
> On Sat, Nov 12, 2011 at 6:11 PM, Mike Lee <curiouslee at gmail.com<mailto:curiouslee at gmail.com>> wrote:
>>
>> Bert,
>>
>> The reverb stayed as it was because I didn't understand that
>> commenting out the initialization was going to just preserve the
>> reverb toggle state. The reverb disable button on the Score Player was
>> clicked the whole time. I toggled the button again, the reverb went
>> away. Upon doing a save as and reopening, the reverb was still there.
>>
>> I captured the sequence through the System Browser in More detail:
>>
>> http://www.flickr.com/photos/curiouslee/6338769418/sizes/o/in/photostream/
>>
>> Mike
>>
>>
>> On Sat, Nov 12, 2011 at 6:03 PM, Bert Freudenberg <bert at freudenbergs.de<mailto:bert at freudenbergs.de>>
>> wrote:
>> > Looks fine so far. The "line disappearing" after commenting it out is
>> > fine, it just means the actual source could not be written since that's
>> > read-only just like the image on your system.
>> >
>> > When you load that project now, and play a sound, the reverb should stay
>> > as it was. Doesn't that work? Did you disable the reverb?
>> >
>> > - Bert -
>> >
>> > On 12.11.2011, at 19:02, Mike Lee <curiouslee at gmail.com<mailto:curiouslee at gmail.com>> wrote:
>> >
>> >> I stepped through again following your steps exactly. Pressing cmd-s
>> >> on my Macbook Pro running 10.6.7 and Etoys 4.1.1. inexplicably caused
>> >> the quoted string to disappear. I went ahead and saved the Etoys
>> >> project file, see screenshots:
>> >>
>> >>
>> >> http://www.flickr.com/photos/curiouslee/6337954306/sizes/o/in/photostream/
>> >>
>> >> Upon returning to the SoundPlayer class in the code browser, the
>> >> original code is gone and replaced with different text.
>> >>
>> >> The reverb persists.
>> >>
>> >> To recap, others are telling me there may be a fix in 4.1.2 or 4.2,
>> >> but for now it seems like I need to find a resolution to the reverb
>> >> manually as I will be distributing 4.1.1 and 700 project files to 20
>> >> volunteers next Sunday.
>> >>
>> >> This sound reverb issue is undoubtedly some legacy decision that now
>> >> must be persisted as a default because so many files expect the effect
>> >> to be present. But, like so many aspects of the grandfather clock that
>> >> Etoys is, it makes no sense. Imagine if a photo editing program tinted
>> >> your images pink by default because some developer years ago thought
>> >> that was cool. No other piece of authoring software I've encountered
>> >> since I started using graphical computers in 1985 puts a filter effect
>> >> on a media asset by default.
>> >>
>> >> Mike
>> >>
>> >> On Sat, Nov 12, 2011 at 6:19 AM, Bert Freudenberg
>> >> <bert at freudenbergs.de<mailto:bert at freudenbergs.de>> wrote:
>> >>> On 12.11.2011, at 11:15, Mike Lee wrote:
>> >>>
>> >>>> After some hours of reading and clicking around, I finally got to the
>> >>>> SoundPlayer initialize string in the class method.
>> >>>
>> >>> "diving into the byzantine bowels of Squeak Etoys and Smalltalk" -
>> >>> very courageous ;)
>> >>>
>> >>> A better way to open a Squeak Browser in Etoys is via the XO's "view
>> >>> source" key. No need to fiddle with preferences. On a Mac that's cmd-comma
>> >>> and on PC ctrl-comma.
>> >>>
>> >>>> I added the quotes closed everything up
>> >>>
>> >>> You need to press cmd-s / ctrl-s to "accept" the method (possibly you
>> >>> did but didn't mention it). It will ask for your initials (every change is
>> >>> logged with a time stamp and author).
>> >>>
>> >>>> and was not able to save the Etoys file due to an error writing the
>> >>>> image file.
>> >>>
>> >>> You normally don't want to save the image file. On many systems you
>> >>> can't (as you discovered) because this modifies the Etoys application
>> >>> itself. That menu entry is in the developer's world menu (accessible by
>> >>> toggling the "etoy-friendly" preference you found). The view-source menu
>> >>> leaves these out, which is why we recommend using that.
>> >>>
>> >>>> Perhaps this is what you mean by
>> >>>> "attaching [the change] to the project," which I haven't a clue how
>> >>>> to
>> >>>> do.
>> >>>
>> >>> You don't need to do anything special, as long as you edited the
>> >>> method while in the project that needs the change. Any method you accept in
>> >>> a project is added to that project's changeset automatically. You just need
>> >>> to save the project afterwards (and it will ask you if you want to include
>> >>> the changes).
>> >>>
>> >>>> See my screenshots:
>> >>>>
>> >>>>
>> >>>> http://www.flickr.com/photos/curiouslee/6337002318/sizes/o/in/photostream/
>> >>>>
>> >>>> Mike
>> >>>
>> >>> Very nice, I could see exactly what you were doing (except I could not
>> >>> guess which OS you were on).
>> >>>
>> >>> - Bert
>> >>>
>> >>>> On Fri, Oct 21, 2011 at 6:32 PM, karl ramberg <karlramberg at gmail.com<mailto:karlramberg at gmail.com>>
>> >>>> wrote:
>> >>>>> I'm not sure what Halo changes Steve suggest...
>> >>>>> Fix is quite easy if you know your way around the Etoys system.
>> >>>>> Just comment out the SoundPlayer initialize in the class method, see
>> >>>>> below.
>> >>>>> A change set with this fix can be attached to the project.
>> >>>>>
>> >>>>> Karl
>> >>>>>
>> >>>>>
>> >>>>> SoundPlayer class>>startUpWithSound:
>> >>>>>  startUpWithSound: aSound
>> >>>>>       "Start up the player process."
>> >>>>>
>> >>>>> +       "SoundPlayer initialize."
>> >>>>> -       SoundPlayer initialize.
>> >>>>>       SoundPlayer
>> >>>>>               startPlayerProcessBufferSize: (BufferMSecs *
>> >>>>> SamplingRate) // 1000
>> >>>>>               rate: SamplingRate
>> >>>>>               stereo: Stereo
>> >>>>>               sound: aSound.
>> >>>>>
>> >>>>> On Fri, Oct 21, 2011 at 8:25 AM, Mike Lee <curiouslee at gmail.com<mailto:curiouslee at gmail.com>>
>> >>>>> wrote:
>> >>>>>> Karl,
>> >>>>>>
>> >>>>>> Good to hear of the fix. If reverb is turned off in 4.2, or if I
>> >>>>>> change it in the world Halo as Steve suggests, should we expert
>> >>>>>> that
>> >>>>>> the setting will be honored on prior versions--even if the file is
>> >>>>>> changed and resaved?
>> >>>>>>
>> >>>>>> Mike
>> >>>>>>
>> >>>>>> On Fri, Oct 21, 2011 at 2:20 AM, karl ramberg
>> >>>>>> <karlramberg at gmail.com<mailto:karlramberg at gmail.com>> wrote:
>> >>>>>>> I fixed an issue with reverb i that is included in Etoys 4.2.
>> >>>>>>> SoundPlayer initializes everytime it is started and the reverb is
>> >>>>>>> set
>> >>>>>>> to true every time.
>> >>>>>>>
>> >>>>>>> Karl
>> >>>>>>>
>> >>>>>>>
>> >>>>>>> On Fri, Oct 21, 2011 at 5:51 AM, Mike Lee <curiouslee at gmail.com<mailto:curiouslee at gmail.com>>
>> >>>>>>> wrote:
>> >>>>>>>> Hi,
>> >>>>>>>>
>> >>>>>>>> The Lubuto Library Project to develop 700 Etoys lessons in Zambia
>> >>>>>>>> is
>> >>>>>>>> finally nearing completion after a year of work by teachers and
>> >>>>>>>> students in Lusaka. There are 100 lessons in 7 Zambian languages
>> >>>>>>>> plus
>> >>>>>>>> 700 sound files that have to be associated with a button in the
>> >>>>>>>> files.
>> >>>>>>>>
>> >>>>>>>> Now we have have enlisted a group of Washington, D.C.-area
>> >>>>>>>> volunteers
>> >>>>>>>> from the Special Libraries Association to help with a final
>> >>>>>>>> finishing
>> >>>>>>>> pass at the files.
>> >>>>>>>>
>> >>>>>>>> Though all the files were authored on OLPC XO laptops in Sugar
>> >>>>>>>> using
>> >>>>>>>> Etoys 3.x, we wish to do the final production on Etoys 4.1 on Mac
>> >>>>>>>> and
>> >>>>>>>> PC depending on what the volunteer has. The finished files need
>> >>>>>>>> to
>> >>>>>>>> open and function properly on Etoys 3.x and 4.x on all platforms.
>> >>>>>>>>
>> >>>>>>>> I have some initial questions regarding some problems working
>> >>>>>>>> with the
>> >>>>>>>> files across different versions of  Etoys.
>> >>>>>>>>
>> >>>>>>>> 1) When I double-click to open the files from Zambia on Etoys 4.1
>> >>>>>>>> Mac,
>> >>>>>>>> I get an error message that prevents the file from loading and
>> >>>>>>>> makes
>> >>>>>>>> it impossible to close Etoys without a force quit. I have seen
>> >>>>>>>> this
>> >>>>>>>> error before when I open older project files on new builds of
>> >>>>>>>> Etoys on
>> >>>>>>>> the XO. On Eotys 4.1 Mac, I can open the file from with Etoys.
>> >>>>>>>> Here is
>> >>>>>>>> a screen shot:
>> >>>>>>>>
>> >>>>>>>> http://www.flickr.com/photos/curiouslee/6265581802/in/photostream
>> >>>>>>>>
>> >>>>>>>> And here is a sample file on Dropbox:
>> >>>>>>>>
>> >>>>>>>> http://dl.dropbox.com/u/16590498/Citonga%201%20Afabeti%201.003.pr
>> >>>>>>>>
>> >>>>>>>> 2) The sound reverb problem persists. Opening up the Etoys 4.1
>> >>>>>>>> Score
>> >>>>>>>> Player in the files authored in Etoys 3.x and clicking the
>> >>>>>>>> Disable
>> >>>>>>>> Reverb button doesn't work.
>> >>>>>>>>
>> >>>>>>>> Thanks in advance to whomever can provide some guidance.
>> >>>>>>>>
>> >>>>>>>> Mike
>> >>>>>>>> _______________________________________________
>> >>>>>>>> squeakland mailing list
>> >>>>>>>> squeakland at squeakland.org<mailto:squeakland at squeakland.org>
>> >>>>>>>> http://lists.squeakland.org/mailman/listinfo/squeakland
>> >>>>>>>>
>> >>>>>>>
>> >>>>>>
>> >>>>>
>> >>>> _______________________________________________
>> >>>> squeakland mailing list
>> >>>> squeakland at squeakland.org<mailto:squeakland at squeakland.org>
>> >>>> http://lists.squeakland.org/mailman/listinfo/squeakland
>> >>>
>> >>>
>> >>>
>> >>>
>> >
>> _______________________________________________
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>

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