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sox stat (vfp7)

Tue, 22 Oct 2013 05:09:11 GMT

>[�� ]
> Using a null file to output audio
> amounts to discarding the
>
> audio and is useful mainly with effects that produce
> information
>
> about the audio instead of affecting it (such
> as noiseprof or
>
> stat).

�� , �� , �� :(

sox stat (��)

Thu, 17 Oct 2013 15:37:38 GMT

> sox -V0 -tossdsp -r48000 -c2 /dev/dsp3.1 -traw /dev/null stat trim 0 3

� �� /dev/null ?

-n, --null
Using a null file to output audio amounts to discarding the
audio and is useful mainly with effects that produce information
about the audio instead of affecting it (such as noiseprof or
stat).

sox stat (vfp7)

Thu, 17 Oct 2013 14:46:12 GMT

>> �� *stderr* ? �� 2>&1
> � �ӣ-��
>> �� , ��,
>>> �� stdout
> �� ? 1>&2
> �� |tee ��?
> ��, ��!
> �� , �� !
> �� >&- ))))

�� , �� stat �� .

�� , �� sox stat �� , � �� ...
�� ...

FreeBSD 9.1-RELEASE-p6 Generic x64, �� - �� .

sox stat (��)

Thu, 17 Oct 2013 13:51:44 GMT

> �� *stderr* ? �� 2>&1

� �ӣ-��
> �� , ��,
>> �� stdout

�� ? 1>&2

�� |tee ��?

��, ��!
�� , �� !
�� >&- ))))

sox stat (Andrey Mitrofanov)

Thu, 17 Oct 2013 13:27:19 GMT

> � �� , �� grep'�
> | awk

Useless use of grep! (google://useless use of cat)

sox stat (Andrey Mitrofanov)

Thu, 17 Oct 2013 13:26:02 GMT

> �� *stderr* ? �� 2>&1 �� .
> �� , ��, ��, �� tty (�� )...
> �� , �� .

//�� INT 10h �� STDOUT � DOS, �� .

> ��, �� Σ��, �� , ��
> 2>&1 |awk '/^Maximum delta:/{print$NF}'

�� ɣ� (��, �� ...)

2>&1 |sed -n 's/^Maximum delta: *//p'

sox stat (Andrey Mitrofanov)

Thu, 17 Oct 2013 13:23:24 GMT

> �� .
> � �� , �� ( �� stat ), ��
> �� stdout, �� pipe

�� *stderr* ? �� 2>&1 �� .

�� , ��, ��, �� tty (�� )... �� , �� .

> � �� stat
> Maximum delta: 1.768463
> � � �� grep �� , ��
> �� - 1.768463

��, �� Σ��, �� , ��

2>&1 |awk '/^Maximum delta:/{print$NF}'

sox stat (vfp7)

Thu, 17 Oct 2013 13:02:16 GMT

�� .
� �� , �� ( �� stat ), �� stdout, �� pipe
� �� stat

�� :

Input File : '/dev/dsp3.1' (ossdsp)
Channels : 2
Sample Rate : 48000
Precision : 16-bit
Sample Encoding: 16-bit Signed Integer PCM

In:0.00% 00:00:03.07 [00:00:00.00] Out:144k [======|=====!] Hd:0.0 Clip:0
Samples read: 294912
Length (seconds): 3.072000
Scaled by: 2147483647.0
Maximum amplitude: 0.999969
Minimum amplitude: -1.000000
Midline amplitude: -0.000015
Mean norm: 0.338436
Mean amplitude: -0.000044
RMS amplitude: 0.418896
Maximum delta: 1.768463
Minimum delta: 0.000000
Mean delta: 0.254371
RMS delta: 0.320575
Rough frequency: 5846
Volume adjustment: 1.000
Done.

� � �� grep �� , ��

sox stat (��)

Thu, 17 Oct 2013 12:43:51 GMT

>[�� ]
> �� , ��
> �� .
> ��
> �� .
> �� .�.
> �� , �� - �� ,
> �� , �� .
> �� - �� , ��
> � �� .�. :)
> �� :)

� �� ==> http://www.opennet.ru/openforum/vsluhforumID9/9749.html ��, �� ?
pavlinux �� , �� ӣ �� .

[code]
#!/bin/sh

avs="/tmp/avs"

cat > ${avs}.c <<EOT
#include <stdio.h>
main() {
long a, b, c;
a = b = c = 0;
for ( a = 0; b = getchar(), b != EOF; ++a, c+=b );
printf ("%ld\n", c/a);
}
EOT

gcc ${avs}.c -o ${avs}
r

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sox stat (vfp7)

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sox stat (Andrey Mitrofanov)

sox stat (Andrey Mitrofanov)

sox stat (vfp7)

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sox stat (��)

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