[racket] sound.ss teachpack

Thanks for the update. -- Matthias



On Jul 19, 2011, at 4:03 PM, John Riedl wrote:

> Matthias:
> 
> Thank you for your explanation.  I've gotten speak-word and speak-list
> working now.  There were several challenges:
> 
> 1. HtDP talks about sound.ss.  There is a sound.ss distributed with
> racket 5.1.1, but it's the deinprogramm version, which supports
> completely different commands.  If you want the speak-word function
> you need the sound.ss teachpack from
> http://www.ccs.neu.edu/home/matthias/HtDP/Sound/.
> 
> 2. Once you've installed that teachpack, you need to load it with
> (require htdp/Sound/sound).
> 
> 3. On Linux the built-in sounds are recorded in a .wav file format
> that my version of the default sound command for DRRacket, aplay, (on
> Ubuntu) cannot play.  I had to change the sound program to "play"
> (which is the sox command-line tool that plays most types of audio).
> To do that, add (|GRacket:playcmd| "play") to your preferences file.
> ((find-system-path 'pref-file) will show you where your preference
> file is located.  The vertical bars are needed since GRacket is case
> sensitive, but the default preference file is case insensitive.)
> 
> 4. Under Ubuntu my sox library did not include most of the converters.
> You can install the rest of them with "sudo apt-get install
> libsox-fmt-all", if you have sudo privileges.
> 
> Enjoy!
> John
> 
> On Mon, Jul 18, 2011 at 9:28 PM, Matthias Felleisen
> <matthias at ccs.neu.edu> wrote:
>> 
>> Well, yes, if you solve the problem and plug the solution into
>> the teachpack as advertised, you get to hear Stephanie Weirich
>> pronounce the numbers. -- Matthias
>> 
>> 
>> 
>> On Jul 18, 2011, at 9:28 PM, John Riedl wrote:
>> 
>>> Thanks.  The sound.ss install worked fine from Windows 7, and plays
>>> .wav files, as advertised.
>>> 
>>> What I was going from to expect speak-word and speak-list was this
>>> quote from HtDP:
>>> 
>>> -----------
>>> Once the controller returns the correct list for amounts whose dollar
>>> and cent amounts are between 0 and 20, test the controller with a
>>> computer that can speak. Set the teachpack to sound.ss, which makes
>>> two operations available: speak-word and speak-list. The first accepts
>>> a symbol or a number, the second a list of symbols and numbers. Both
>>> pronounce the symbols they consume. Evaluate the following expressions
>>> (speak-word 1), (speak-list (cons 1 (cons 'dollar empty))), and
>>> (speak-list (cons 'beautiful (cons 'lady empty))) to understand how
>>> the operations operate.
>>> ----------
>>> 
>>> What am I misunderstanding?
>>> 
>>> Thanks,
>>> John
>>> 
>>> On Mon, Jul 18, 2011 at 7:39 PM, Matthias Felleisen
>>> <matthias at ccs.neu.edu> wrote:
>>>> 
>>>> That's all our sound teachpack ever did. The old one is located at
>>>> 
>>>>  http://www.ccs.neu.edu/home/matthias/HtDP/Sound/
>>>> 
>>>> As you can see, it hasn't been maintained in a while. Sorry, let us
>>>> know if it works [I don't have time right now to try.]
>>>> 
>>>> 
>>>> On Jul 18, 2011, at 5:44 PM, John Riedl wrote:
>>>> 
>>>>> Hello.  What happened to the sound.ss teachpack, which apparently used
>>>>> to include speak-word and speak-list methods.  Those sound great fun
>>>>> for teaching ... but I can't find any evidence on the Web that it ever
>>>>> existed, except for Google Books hits on HtDP :).  (Note that there is
>>>>> a deinprogramm/sound.ss file in the current distro, but that just
>>>>> plays sound files, which is less cool.)
>>>>> 
>>>>> Thanks,
>>>>> John
>>>>> 
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>>>> 
>> 
>>