Re: [ecasound] ecasound-2.5.2 - strange effect of '-ea:amplify-100 -ev'

--- On Tue, 9/2/08, Sergei Steshenko <sergstesh@email-addr-hidden> wrote:

> From: Sergei Steshenko <sergstesh@email-addr-hidden>
> Subject: [ecasound] ecasound-2.5.2 - strange effect of '-ea:amplify-100 -ev'
> To: ecasound-list@email-addr-hidden, kvehmanen@email-addr-hidden
> Date: Tuesday, September 2, 2008, 10:59 AM
> Hello All,
>
> with only '-ev' I'm getting this:
>
> "
> (eca-chain) (audiofx) -- Amplitude statistics
> -----------------------------
> Range, pos/neg, count,(%), ch1...n
> Pos -1.0 dB: 0,0.000% 0,0.000%
> Pos -2.0 dB: 0,0.000% 0,0.000%
> Pos -4.0 dB: 0,0.000% 0,0.000%
> Pos -8.0 dB: 1087,0.007% 922,0.006%
> Pos -16.0 dB: 519477,3.574% 513555,3.533%
> Pos -32.0 dB: 4459939,30.683%
> 4456212,30.658%
> Pos -64.0 dB: 2117538,14.568%
> 2125962,14.626%
> Pos -inf.0 dB: 279920,1.926% 279896,1.926%
> Neg -inf.0 dB: 157160,1.081% 157782,1.086%
> Neg -64.0 dB: 2105513,14.485%
> 2109435,14.512%
> Neg -32.0 dB: 4347049,29.907%
> 4353365,29.950%
> Neg -16.0 dB: 545570,3.753% 536194,3.689%
> Neg -8.0 dB: 2107,0.014% 2037,0.014%
> Neg -4.0 dB: 0,0.000% 0,0.000%
> Neg -2.0 dB: 0,0.000% 0,0.000%
> Neg -1.0 dB: 0,0.000% 0,0.000%
> (audiofx) Peak amplitude, period: pos=0.53241 neg=0.62145.
> (audiofx) Peak amplitude, all : pos=0.53241 neg=0.62145.
> (audiofx) Clipped samples, period: pos=0 neg=0.
> (audiofx) Clipped samples, all : pos=0 neg=0.
> (audiofx) Max gain without clipping, all: 1.60914.
> (audiofx) -- End of statistics
> --------------------------------
> "
>
> - so far so good.
>
> When I provide '-ea:amplify-100 -ev' in the same
> place command line, I'm
> getting this:
>
> "
> (eca-chain) (audiofx) -- Amplitude statistics
> -----------------------------
> Range, pos/neg, count,(%), ch1...n
> Pos -1.0 dB: 0,0.000% 0,0.000%
> Pos -2.0 dB: 0,0.000% 0,0.000%
> Pos -4.0 dB: 0,0.000% 0,0.000%
> Pos -8.0 dB: 0,0.000% 0,0.000%
> Pos -16.0 dB: 0,0.000% 0,0.000%
> Pos -32.0 dB: 0,0.000% 0,0.000%
> Pos -64.0 dB: 0,0.000% 0,0.000%
> Pos -inf.0 dB: 14535360,100.000%
> 14535360,100.000%
> Neg -inf.0 dB: 0,0.000% 0,0.000%
> Neg -64.0 dB: 0,0.000% 0,0.000%
> Neg -32.0 dB: 0,0.000% 0,0.000%
> Neg -16.0 dB: 0,0.000% 0,0.000%
> Neg -8.0 dB: 0,0.000% 0,0.000%
> Neg -4.0 dB: 0,0.000% 0,0.000%
> Neg -2.0 dB: 0,0.000% 0,0.000%
> Neg -1.0 dB: 0,0.000% 0,0.000%
> (audiofx) Peak amplitude, period: pos=0.00000 neg=0.00000.
> (audiofx) Peak amplitude, all : pos=0.00000 neg=0.00000.
> (audiofx) Clipped samples, period: pos=0 neg=0.
> (audiofx) Clipped samples, all : pos=0 neg=0.
> (audiofx) Max gain without clipping, all: 1.00000.
> (audiofx) -- End of statistics
> --------------------------------
> ".
>
> I didn't expect ecasound behavior to change in the
> second case, since
> 100% amplification is a no operation.
>
> What am I getting wring here ?
>
> Anyway, the
>
> Pos -inf.0 dB: 14535360,100.000%
> 14535360,100.000%
>
> line looks like a bug to me.
>
> ...
>
> Have just noticed that I can also specify
> '-ea:amplify-100%', i.e. with
> the '%' sign, ecasound accepts it. The end result
> is the same.
>
> Isn't '%' acceptance a bug ?
>
> Thanks,
> Sergei.
>

Oh, boy ...

It's a bug in command line parser - the latter should have told me that it
doesn't like the 'amplify' word.

With '-ea:100 -ev' it works OK.

...

And '%' acceptance is still a bug too.

Regards,
  Sergei.

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Received on Wed Sep 3 00:15:01 2008