Re: Serial connection between multiple pannerNodes recursively

Hi Ray!

The serial connection of two different panner nodes is not that unusual.
Actually, it is quite common in the music production software. For example,
you can create a mix group with multiple audio streams (which has
individual pan position) and you can control the stereo position of the
whole mix group with the last panner node. So being able to create a serial
connection with multiple panners should be possible or even essential, I
guess.

However, I am not sure what the 'recursive serial connection' means in the
question, and also the meaning of the second example is unclear to me. Is
this about implementing Doppler effect by creating a loop between multiple
panner nodes?

-Hongchan




On Fri, Feb 28, 2014 at 9:12 AM, Raymond Toy <rtoy@google.com> wrote:

> You've been reading the blink/webkit code for panners. :-)
>
> I do not know the reason, but it seems Chris Rogers only expected to have
> each source connected to at most one panner.  What would it mean to have a
> source connected to two different panners serially?
>
>
> On Thu, Feb 27, 2014 at 4:27 AM, KeonHo Kim <keonho07.kim@samsung.com>wrote:
>
>> Dear All,
>>
>>
>>
>> Here is an question about connection between multiple pannerNodes.
>>
>>
>>
>> Example,
>>
>> Source1 -> Panner1 ->
>>
>>                            Panner3 -> Destination
>>
>> Source2 -> Panner2 ->
>>
>>
>>
>> In this case, generated buffers from Source1 refer values such as
>> dopplerShift, distanceConeGain, azimuth and elevation from Panner1 and
>> Panner3.
>>
>> In the next connection, generated buffers from Source2 refer values from
>> Panner2 and Panner3.
>>
>>
>>
>> If there is recursively serial connection between multiple panner nodes
>> to audiobuffersourcenode, which panners should affect the pitch of
>> audioBufferSource for dopper shift.
>>
>>
>>
>> In example, Source1 ( Panner1 or Panner3, both ? )
>>
>> Destination = Panner3 ( Panner1 ( Source1 ) ) ) ?
>>
>> Destination = Panner1 ( Source1 ) ?
>>
>> Destination = Panner3 ( Source1 ) ?
>>
>>
>>
>> On process of each AudioNode will generate buffers for their purpose.
>>
>> Is there anyone can guide clearly this case about all values how to work?
>>
>
>


-- 
Hongchan Choi

PhD Candidate, Research Assistant
Center for Computer Research in Music and Acoustics (CCRMA)
Stanford University

http://ccrma.stanford.edu/~hongchan