[sugar] Re: Compressed speech for voice overs?

[Takashi Yamamiya]

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.

Cheers,
- 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.
>>
>> Cheers,
>>
>> Alan
>>
>> -----------
>>
>>
>> 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,