Subject: Re: [linux-audio-dev] discussion about development overlap
From: Kai Vehmanen (kaiv_AT_wakkanet.fi)
Date: Fri Sep 29 2000 - 19:12:58 EEST
On Thu, 28 Sep 2000, Paul Barton-Davis wrote:
>> direct mode). When you do the first editing operation, ecawave creates
>> a temp file for editing. The temp file is opened in read/write -mode,
> but you said "large files". what happens when the soundfile is 500MB ?
> where are you going to put the tmp file ? do you just assume there is
> always space for this approach ?
I don't see a way around this, you are always going to need lots of free
space. For instance, if user loads a 500MB file, presses "select all" and
the clicks some effect (normalize, compress, filter, noise-removal,
... quite common track-wide effects), you will have to have another 500MB
of free space, if you want to offer non-destructive editing.
>>track of a song, independently of the context, you don't really want move
>>its material around (ie. relocating a guitar solo, without hearing the
> actually, i would have almost said the opposite was true, at least
> sometimes. but i supposed that such operations would fall into what
> you mean by "audio sequencing". although i accept this as a legitimate
> limitation to define, it rules out much of the most interesting stuff
Yup, if the song context actually is available for reference, it's a whole
new ball game. Then there are lots of valid reasons why you'd want to move
a guitar solo: fix timing errors, strange effects, etc ... but using edls
will affect the design. In ecawave's case, the big step is to break the
current wall between the gui (=ecawave) and the audio engine (=ecasound).
Currently ecawave knows very little about audio stuff: only filenames,
length and position, that's about it. EDL support would require more
tight binding between the editor and the lowlevel engine... nothing
especially bad about this, just a different kind of approach.
-- . http://www.eca.cx ... [ audio software for linux ] /\ . . http://www.eca.cx/aivastus ... [ aivastus net radio ] /\ . . http://www.eca.cx/sculpscape [ my armchair-tunes mp3/ra/wav ]
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