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Fwd: Re: Bajar volumen hasta cierto nivel SOX, FADE IN, FADE OUT




Recibido en mi privado. Reenvío a la Lista.

-------- Mensaje original --------
Asunto: 	Re: Bajar volumen hasta cierto nivel SOX, FADE IN, FADE OUT
Fecha: 	Mon, 11 Mar 2013 18:27:45 -0600
De: 	Rantis Cares <rantiscares@gmail.com>
Para: 	Alberto Vicat <albertovicat@gmail.com>



Parece que se te escapó hacer un 'man sox' en consola.

No se me escapo realizar 'man sox'. He aplicado lo que dice y sigue
estando sin funcionar como me gustaria.

Es larguísimo lo que sale. En mi sistema está en inglés. Sobre fade dice
esto:

(...)

fade [type] fade-in-length [stop-time [fade-out-length]]
Apply a fade effect to the beginning, end, or both of the audio.

An optional type can be specified to select the shape of the
fade curve: q for quarter of a sine wave, h for half a sine
wave, t for linear (`triangular') slope, l for logarithmic, and
p for inverted parabola. The default is logarithmic.

A fade-in starts from the first sample and ramps the signal
level from 0 to full volume over fade-in-length seconds. Spec‐
ify 0 seconds if no fade-in is wanted.

For fade-outs, the audio will be truncated at stop-time and the
signal level will be ramped from full volume down to 0 starting
at fade-out-length seconds before the stop-time. If fade-out-
length is not specified, it defaults to the same value as fade-
in-length. No fade-out is performed if stop-time is not speci‐
fied. If the file length can be determined from the input file
header and length-changing effects are not in effect, then 0 may
be specified for stop-time to indicate the usual case of a fade-
out that ends at the end of the input audio stream.

All times can be specified in either periods of time or sample
counts. To specify time periods use the format hh:mm:ss.frac
format. To specify using sample counts, specify the number of
samples and append the letter `s' to the sample count (for exam‐
ple `8000s').

See also the splice effect.

(...)
Si no te aparece lo que expecíficamente estás buscando quizá te sirva lo que
dice en el primer párrafo sobre el tipo de curva del efecto.

No, de hecho nisiquiera puedo hacer un fade out al inicio de la
grabacion. El fade out siempre lo hace al final del audio.

Saludos

Rantiscares
.




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