[vlc-devel] karaoke filter

[郭宇宏]

the latest patch

在 2011年4月20日 下午9:50，郭宇宏 <yuhong.guo68 at gmail.com>写道：

> Modify the patch according to all your suggests.
>
> Thanks
>
> 2011/4/15 Juha Jeronen <juha.jeronen at jyu.fi>
>
>> Hi,
>>
>> On 04/15/2011 02:25 PM, Steinar H. Gunderson wrote:
>> > On Fri, Apr 15, 2011 at 07:16:04PM +0800, 郭宇宏 wrote:
>> >>     for(i=0;i<len;i+=nch)
>> >>     {
>> >>         a[i] = (a[i] - a[i+1]) * 0.7;
>> >>         a[i+1]=a[i];
>> >>     }*
>> > My guess is that this is really 1/sqrt(2), which makes sense from an
>> energy
>> > point of view (or at least would, if the channels were independent; if
>> not,
>> > it depends on the correlation), but can cause clipping.
>>
>> Ok. Thanks. It did look a lot like 1/sqrt(2) :)
>>
>> Maybe for float samples (if we support those), 1/sqrt(2) would make
>> sense, and for integer (16-bit) samples, 0.5?
>>
>>  -J
>>
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>
>
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