alice-teacher Fwd: help with importing sound

[Don Slater]

From Wanda Dann...

Begin forwarded message:

> From: Wanda Dann <wpdann at andrew.cmu.edu>
> Subject: Re: Fwd: alice-teacher help with importing sound
> Date: September 19, 2011 12:22:20 PM EDT
> To: Don Slater <dslater at andrew.cmu.edu>
> Cc: Aik Min <aik_min at yahoo.com>, Steve Cooper <coopers at cs.stanford.edu>
> 
> My understanding is that a Wav file that has no codec is said to be "raw PCM".  
> This means it is totally uncompressed and may be a very large file. 
> 
> Some audio editors actually apply a codec to a Wav file (for example, mp3) 
> to make the file smaller.  In other words, some Wav files are actually mp3 files ... 
> which confuses the Java Playback Engine (the utility used in Alice 2.2 to play sound files).
> 
> Please note that I am not a sound engineer and I'm not sure I have
> explained this very well...
> 
> Wanda
> 
> 
> 
> 
> 
> On 9/19/2011 12:04 PM, Don Slater wrote:
>> 
>> Why would Alice want a PCM audio file?
>> 
>> Thanks,
>> Don
>> 
>> 
>> Begin forwarded message:
>> 
>>> From: P Mac <pmac at petaletal.org>
>>> Subject: Re: alice-teacher help with importing sound
>>> Date: September 18, 2011 7:16:39 PM EDT
>>> To: <alice-teachers at lists.andrew.cmu.edu>
>>> Reply-To: Alice educators <alice-teachers at lists.andrew.cmu.edu>
>>> 
>>> It appears the error message is asking that you use a PCM audio file instead of an MP3 or Wav file. If you want to use the the latter two audio files, you will need a MP3 or WAV to PCM converter to change them over to a PCM audio file. You may find one here: http://www.cnet.com/?tag=hdr
>>> 
>>> 
>>> > Date: Sat, 17 Sep 2011 15:42:21 -0700
>>> > From: fletcher at csusm.edu
>>> > To: alice-teachers at lists.andrew.cmu.edu
>>> > Subject: Re: alice-teacher help with importing sound
>>> > 
>>> > My work around has been to always just record the sound directly into
>>> > Alice - rather than import it.
>>> > Sound quality isn't as high as it might be - but it works as long as
>>> > computer has microphone.
>>> > 
>>> > > Hello All,
>>> > > I'm having a heck of a time trying to import sounds into Alice. I am
>>> > > following all the instructions I have read on websites but I keep getting
>>> > > this error message:
>>> > >
>>> > >
>>> > > Your sound file cannot be played in Alice.
>>> > > Please find an audio editor to convert the file to one with a PCM
>>> > > encoding.
>>> > > See the tutorial on converting sound files at our Alice website.
>>> > > Right click to clear the messages here.
>>> > >
>>> > >
>>> > > I have tried importing a wav file as well as an mp3 but I keep getting
>>> > > this
>>> > > error message. Anyone have any solutions?
>>> > >
>>> > >
>>> > > Cheers,
>>> > > Robert Carullo
>>> > > _______________________________________________
>>> > > alice-teachers mailing list
>>> > > alice-teachers at lists.andrew.cmu.edu
>>> > > https://lists.andrew.cmu.edu/mailman/listinfo/alice-teachers
>>> > >
>>> > 
>>> > 
>>> > 
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>> 

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