Re: Input buffer's time coordinate

Hi Sébastien,

Thanks for the advice!
ChannelMerger was completely out of my sight! Yes, your code looks that I
want.
Will try this idea, and also tackle more simple way (e.g. use
param.linearRampToValueAtTime(LENGTH_OF_A_DAY, LENGTH_OF_A_DAY) to generate
timestamp instead ).

P.S.
I'm also feeling sad to know there's no way to do this in non hacky way ;)

thanks so much!

Akira

2015-11-02 0:10 GMT+09:00 s p <sebpiq@gmail.com>:

> Hi Akira,
>
> I had the same problem a while ago. For this I find a hack, which works
> well in Chrome but not in Firefox (at the time there was a bug I think with
> ChannelMergerNode which was causing a problem there, but now maybe it is
> fixed?). You can find the code there :
> https://github.com/WhojamLab/WAARecorderNode/blob/master/lib/TimeTaggedScriptProcessorNode.js
>
> The basic idea is to use a BufferSourceNode playing a ramp - which is
> basically your timeline - and merge that audio signal with the signal you
> want to send to your ScriptProcessorNode. That way you both the signal you
> are interested in AND the timeline which gives you a precise time tag for
> each sample of your signal.
>
> I could also package this as a separate library, but considering that
> things are going to change soon enough, and ScriptProcessorNode will
> disappear, and these problems of unpredictable latency should disappear
> with it (will they?)
>  ... it is probably not worth ...
>
> Cheers
>
> On Sun, Nov 1, 2015 at 7:26 AM, Akira Sawada <aklaswad@gmail.com> wrote:
>
>> Hi group,
>>
>> I'm writing an audioParam automation editor (
>> http://aklaswad.github.io/alligata/envelope/ ) and using scriptProcessor
>> as simple peek meter in it.
>>
>> So, I want to know the exact time the samples in inputBuffer was
>> processed for.
>> Those input samples could have an information about context based time
>> coordinate because they're also processed on top of the time coordinate.
>>
>> Is there a way to know that?
>>
>> thanks.
>>
>> --
>> 澤田 哲 / Akira Sawada / aklaswad
>>
>> email me: aklaswad@gmail.com
>> visit me: http://blog.aklaswad.com/
>>
>
>
>
> --
>
> *Sébastien Piquemal*
>
>  -----* @sebpiq*
>  ----- http://github.com/sebpiq
>  ----- http://funktion.fm
>



-- 
澤田 哲 / Akira Sawada / aklaswad

email me: aklaswad@gmail.com
visit me: http://blog.aklaswad.com/