[sugar] Re: Compressed speech for voice overs?

Alan Kay alan.kay
Sun Dec 17 12:55:49 EST 2006

Hi Takashi --

Terrific! (You are far ahead, which is great.) Thanks.



At 09:26 AM 12/17/2006, Takashi Yamamiya wrote:
>Actually, I'm working about Ogg Vorbis and Speex plugin for Squeak, yet.
>Now, playing (extract) with Ogg Vorbis works in Squeak, and I started
>recording (compressing). After that, I'm going to add Speex.
>Because I'm not sure which codec is is better for our case,
>it would be good to test both of them and choose one,
>considering performance, space, and quality in actual B machine.
>- Takashi
>Bert Freudenberg wrote:
>>Ogg vorbis is for music. The vorbis faq recommends "speex" for speech:
>>     http://www.vorbis.com/faq/#speech
>>     http://www.speex.org/
>>Speex can be embedded in Ogg:
>>     http://www.speex.org/docs/manual/speex-manual/node8.html
>>- Bert -
>>On Dec 17, 2006, at 15:55 , Alan Kay wrote:
>>>Hi Jim --
>>>Squeak has some very low bitrate codecs just for speech that we 
>>>did years ago that are much more compressed than mp3 (by a lot). 
>>>I'm wondering whether ogg has something similar and special just 
>>>for human voice (non-singing)? This could make a big difference 
>>>wrt the limited storage of XO.
>>>At 05:59 AM 12/17/2006, Jim Gettys wrote:
>>>>Ogg vorbis it is.  Patent unencumbered, and reputedly better than MP3 at
>>>>the same bitrate.
>>>>                   - Jim
>>>>On Sun, 2006-12-17 at 05:03 -0800, Alan Kay wrote:
>>>> > Hi Folks --
>>>> >
>>>> > I'm not sure how voice-overs will be used in the general XO UI, but
>>>> > we are planning to make heavy use of them, especially in the
>>>> > introductory Etoys projects. Squeak has a variety of speech and other
>>>> > audio codecs, but the general open source software community might
>>>> > have better ones (less space, higher quality).
>>>> >
>>>> > For example, I heard a rumor that ogg might be put on the XO. One of
>>>> > the ogg codecs might be better for speech than ours. Anyone up on the
>>>> > current plan here?
>>>> >
>>>> > Cheers,

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