[x3d-public] Sound v4 > channel nodes > node design comparison v4 vs Doug proposed; ChannelMerger
GPU Group
gpugroup at gmail.com
Sat Mar 11 08:49:41 PST 2023
Proposal 3: 3-tuple selector node
Haven't tried it in code yet.
1. Add 2 fields to ChannelSelector
SFInt32 destinationChoice
SFInt32 streamChoice
2. Add field to ChannelMerger
MFNode selectors [ChannelSelector]
3. Add prose "ChannelMerger.children represents a list of audio streams..."
Proposal3 is a cross/hybrid between proposal2 and v4 featuring SF routing
for source and destination.
-Doug
On Mon, Mar 6, 2023, 7:39 a.m. GPU Group <gpugroup at gmail.com> wrote:
> Proposed and v4 implementation: Selections/sourceChannels are also
> semi-baked connections, and I currently have no tested code for
> unconnecting if a runtime SF route changed a
> ChannelSelector.selectedChannel or MF route to indexSource
> -Doug
>
>
> On Mon, Mar 6, 2023 at 6:05 AM GPU Group <gpugroup at gmail.com> wrote:
>
>> I take that back, proposed also semi-bakes destinations into connections
>> and I don't have a tested code for un-connecting at this time.
>> -Doug
>>
>> On Mon, Mar 6, 2023 at 5:00 AM GPU Group <gpugroup at gmail.com> wrote:
>>
>>> Mind you v4 design only half-passes the SF routing threshold:
>>> Selections/sources. Destinations are baked in scenegraph.
>>> If the routing threshold was changed to MF, then proposed would have
>>> full runtime control over sources and destinations.
>>> One way to save proposed, is to promise utility nodes for SF to MF in
>>> v4.1.
>>> -Doug
>>>
>>> On Sun, Mar 5, 2023 at 3:11 PM GPU Group <gpugroup at gmail.com> wrote:
>>>
>>>> I don;t have a good answer for changing individual elements of an
>>>> MFInt32 field.
>>>> I guess that use case kills the proposed method.
>>>> -Doug
>>>> more.. there was another browser I used about 15 years ago, and it had
>>>> some utility nodes where you route an MF field to the input, and it would
>>>> have 10 SF outputs, and another one going the other way - 10 SF inputs, and
>>>> routed and MF.
>>>> Seemed limited use with just 10. But would work for a 6 channel case.
>>>> Something more general like the IntegerSequencer, which takes 2
>>>> routings, one for the index (next, previous, or index) and one for the
>>>> value, but for this MFInt32 case the input value would be SInt32. Then
>>>> routing from the MFInt32 field in Merger to the utility function, and
>>>> routing back when changed.
>>>> But that would take some prose to explain the use case even if there
>>>> was a utility node like that.
>>>>
>>>>
>>>>
>>>> On Sun, Mar 5, 2023 at 2:13 PM GPU Group <gpugroup at gmail.com> wrote:
>>>>
>>>>> Don,
>>>>> Thanks for feedback.
>>>>> Tuples needed. And web3d doesn't have tuple fields.
>>>>> If web3d had MFInt32_3tuple field type that would be great in this
>>>>> use-case.
>>>>> In this case the tuple needed is (destinationChannel, sourceChannel,
>>>>> audioStream)
>>>>> Next best I can think of 3 MFInt32 fields --and some prose to explain
>>>>> they should have the same number of entries.
>>>>> It's not in w3c because its another mechanism to convert procedural
>>>>> code to declarative.
>>>>> -Doug
>>>>> more..
>>>>> I showed the v4 design works under challenging scenarios/use-cases,
>>>>> but is awkward in some scenarios --requiring prose to explain. I couldn't
>>>>> understand how to use the nodes as the prose was written. Maybe more
>>>>> detailed prose would help.
>>>>> "The Merger.children field represents a list of destinationChannels
>>>>> ..."
>>>>> That's when I tried the 2-tuple. The prose for it would look like
>>>>> "The Merger.children field represents a list of sourceChannels"
>>>>> The 2-tuple didn't work with scenarios d) and e).
>>>>> The 3-tuple prose would look like this:
>>>>> "The Merger.children field represents a list of audio streams"
>>>>> Decoupling the children field from both destinationChannel and
>>>>> sourceChannel had benefits:
>>>>> - no need to DEF/USE the same Splitter (or non-splitter) audio stream
>>>>> to fill channel slots, if you have one splitter and/or audio stream, you
>>>>> can repeat the indexStream index
>>>>> - can do all the other permutations of merging and swapping channels
>>>>> with indexSource and indexDestination
>>>>>
>>>>> PROSE COMPARISON TEST?
>>>>> Perhaps a good test of design is which is easier to explain for all
>>>>> use cases
>>>>>
>>>>>
>>>>> On Sun, Mar 5, 2023 at 12:57 PM Brutzman, Donald (Don) (CIV) <
>>>>> brutzman at nps.edu> wrote:
>>>>>
>>>>>> Thanks for continued scrutiny and experimentation efforts Doug.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Primary point from last Friday is that we are trying to align with
>>>>>> Web Audio API parameters closely and correctly.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Design point: MFInt32/MFFloat arrays with distinct elements in the
>>>>>> array are quite difficult for authors to manipulate without scripting, and
>>>>>> even then tend to be quite error prone. If actually needed, it is much
>>>>>> preferred to define each parameter as an independent field. Looking over
>>>>>> what you’ve shared here, for example:
>>>>>>
>>>>>>
>>>>>>
>>>>>> - SFInt32 [in out] indexStream 0
>>>>>> - SFInt32 [in out] indexSource 0
>>>>>> - SFInt32 [in out] indexDestination 0
>>>>>> - SFInt32 [in out] channelCount 0
>>>>>>
>>>>>>
>>>>>>
>>>>>> Reference
>>>>>>
>>>>>> -
>>>>>> https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/components/sound.html#ChannelMerger
>>>>>>
>>>>>>
>>>>>>
>>>>>> However am not seeing a match between what you’re suggesting here and
>>>>>> what W3C Audio API says, please advise.
>>>>>>
>>>>>>
>>>>>>
>>>>>> - https://www.w3.org/TR/webaudio/#channelmergernode
>>>>>>
>>>>>>
>>>>>>
>>>>>> *1.14. The **ChannelMergerNode
>>>>>> <https://www.w3.org/TR/webaudio/#channelmergernode>** Interface*
>>>>>>
>>>>>> The ChannelMergerNode
>>>>>> <https://www.w3.org/TR/webaudio/#channelmergernode> is for use in
>>>>>> more advanced applications and would often be used in conjunction with
>>>>>> ChannelSplitterNode
>>>>>> <https://www.w3.org/TR/webaudio/#channelsplitternode>.
>>>>>>
>>>>>> *Property *
>>>>>>
>>>>>> *Value *
>>>>>>
>>>>>> *Notes *
>>>>>>
>>>>>> numberOfInputs
>>>>>> <https://www.w3.org/TR/webaudio/#dom-audionode-numberofinputs>
>>>>>>
>>>>>> see notes
>>>>>>
>>>>>> Defaults to 6, but is determined by ChannelMergerOptions
>>>>>> <https://www.w3.org/TR/webaudio/#dictdef-channelmergeroptions>,
>>>>>> numberOfInputs
>>>>>> <https://www.w3.org/TR/webaudio/#dom-channelmergeroptions-numberofinputs>
>>>>>> or the value specified by createChannelMerger
>>>>>> <https://www.w3.org/TR/webaudio/#dom-baseaudiocontext-createchannelmerger>.
>>>>>>
>>>>>>
>>>>>> numberOfOutputs
>>>>>> <https://www.w3.org/TR/webaudio/#dom-audionode-numberofoutputs>
>>>>>>
>>>>>> 1
>>>>>>
>>>>>> channelCount
>>>>>> <https://www.w3.org/TR/webaudio/#dom-audionode-channelcount>
>>>>>>
>>>>>> 1
>>>>>>
>>>>>> Has channelCount constraints
>>>>>> <https://www.w3.org/TR/webaudio/#audionode-channelcount-constraints>
>>>>>>
>>>>>> channelCountMode
>>>>>> <https://www.w3.org/TR/webaudio/#dom-audionode-channelcountmode>
>>>>>>
>>>>>> "explicit
>>>>>> <https://www.w3.org/TR/webaudio/#dom-channelcountmode-explicit>"
>>>>>>
>>>>>> Has channelCountMode constraints
>>>>>> <https://www.w3.org/TR/webaudio/#audionode-channelcountmode-constraints>
>>>>>>
>>>>>> channelInterpretation
>>>>>> <https://www.w3.org/TR/webaudio/#dom-audionode-channelinterpretation>
>>>>>>
>>>>>> "speakers
>>>>>> <https://www.w3.org/TR/webaudio/#dom-channelinterpretation-speakers>"
>>>>>>
>>>>>>
>>>>>> tail-time <https://www.w3.org/TR/webaudio/#tail-time>
>>>>>>
>>>>>> No
>>>>>>
>>>>>> This interface represents an AudioNode
>>>>>> <https://www.w3.org/TR/webaudio/#audionode> for combining channels
>>>>>> from multiple audio streams into a single audio stream. It has a variable
>>>>>> number of inputs (defaulting to 6), but not all of them need be connected.
>>>>>> There is a single output whose audio stream has a number of channels equal
>>>>>> to the number of inputs when any of the inputs is actively processing
>>>>>> <https://www.w3.org/TR/webaudio/#actively-processing>. If none of
>>>>>> the inputs are actively processing
>>>>>> <https://www.w3.org/TR/webaudio/#actively-processing>, then output
>>>>>> is a single channel of silence. […]
>>>>>>
>>>>>>
>>>>>>
>>>>>> v/r Don
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> *From:* x3d-public <x3d-public-bounces at web3d.org> *On Behalf Of *GPU
>>>>>> Group
>>>>>> *Sent:* Sunday, March 5, 2023 5:51 AM
>>>>>> *To:* X3D Graphics public mailing list <x3d-public at web3d.org>
>>>>>> *Subject:* Re: [x3d-public] Sound v4 > channel nodes > node design
>>>>>> comparison v4 vs Doug proposed
>>>>>>
>>>>>>
>>>>>>
>>>>>> correction to b)
>>>>>>
>>>>>> proposed
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indexStream='0,1'
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sun, Mar 5, 2023 at 6:44 AM GPU Group <gpugroup at gmail.com> wrote:
>>>>>>
>>>>>> Here's an even better proposed design using a 3-tuple, and showing
>>>>>> more tested scenarios
>>>>>>
>>>>>> CHANNEL NODE DESIGN COMPARISON
>>>>>>
>>>>>> v4: channel nodes as written in v4 Spec Draft Sound Component
>>>>>>
>>>>>> - merger.children is a sequential list of output/destination channels
>>>>>>
>>>>>> proposed: add 3 fields to ChannelMerger
>>>>>>
>>>>>> - MFInt32 indexStream, indexSource, indexDestination
>>>>>>
>>>>>> - and eliminate ChannelSelector node.
>>>>>>
>>>>>> - Merger.children is a list of audio streams.
>>>>>>
>>>>>> I have both v4 and proposed implemented in freewrl: if indexStream,
>>>>>> Source or Destination is empty, thunks to v4
>>>>>>
>>>>>> I tested both methods on 5 scenarios and they both work as follows:
>>>>>>
>>>>>> a) swapping 2 channels
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='6' >
>>>>>>
>>>>>> <ChannelSelector channelSelection='1'>
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter'
>>>>>> channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelSelection='0'>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> proposed
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indexStream='0,0'
>>>>>>
>>>>>> indexSource='0,1'
>>>>>>
>>>>>> indexDestination='1,0'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter' channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> b) merging 2 channels into 1
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='6' >
>>>>>>
>>>>>> <Gain>
>>>>>>
>>>>>> <ChannelSelector channelSelection='1'>
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter'
>>>>>> channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelSelection='0'>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </Gain>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> proposed
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indexStream='0,0'
>>>>>>
>>>>>> indexSource='0,1'
>>>>>>
>>>>>> indexDestination='0,0'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter' channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> c) merging 2 channels into 2nd merger channel (skipping first output
>>>>>> channel)
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='6' >
>>>>>>
>>>>>> <Gain/>
>>>>>>
>>>>>> <Gain>
>>>>>>
>>>>>> <ChannelSelector channelSelection='1'>
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter'
>>>>>> channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelSelection='0'>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </Gain>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> proposed:
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indexStream='0,0'
>>>>>>
>>>>>> indexSource='0,1'
>>>>>>
>>>>>> indexDestination='1,1'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter' channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>>
>>>>>>
>>>>>> d) assign different audio streams to first and 2nd channnels (play
>>>>>> beat in left, cnote in right)
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='2' >
>>>>>>
>>>>>> <Gain gain='.5'><AudioClip
>>>>>> url='"sound/beat.mp3"'/></Gain>
>>>>>>
>>>>>> <Gain gain='.5'><AudioClip
>>>>>> url='"sound/cnote.wav"'/></Gain>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> proposed:
>>>>>>
>>>>>> <ChannelMerger channelCount='2'
>>>>>>
>>>>>> indexSteam='0,0'
>>>>>>
>>>>>> indexSourc='-1,-1'
>>>>>>
>>>>>> indexDestination='0,1'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <Gain gain='.5'><AudioClip
>>>>>> url='"sound/beat.mp3"'/></Gain>
>>>>>>
>>>>>> <Gain gain='.5'><AudioClip
>>>>>> url='"sound/cnote.wav"'/></Gain>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> e) assign different audio streams to first and 2nd channnels via
>>>>>> splitter take first channel (play beat in left, cnote in right)
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='2' >
>>>>>>
>>>>>> <ChannelSelector channelChoice='0'>
>>>>>>
>>>>>> <ChannelSplitter channelCount='2'><AudioClip
>>>>>> url='"sound/beat.mp3"'/></ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelChoice='0'>
>>>>>>
>>>>>> <ChannelSplitter channelCount='2'><AudioClip
>>>>>> url='"sound/cnote.wav"'/></ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> proposed:
>>>>>>
>>>>>> <ChannelMerger channelCount='2'
>>>>>>
>>>>>> indexStream='0,1'
>>>>>>
>>>>>> indexSourc='0,0'
>>>>>>
>>>>>> indexDestination='0,1'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter channelCount='2'><AudioClip
>>>>>> url='"sound/beat.mp3"'/></ChannelSplitter>
>>>>>>
>>>>>> <ChannelSplitter channelCount='2'><AudioClip
>>>>>> url='"sound/cnote.wav"'/></ChannelSplitter>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> /CHANNEL NODE DESIGN COMPARISON
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sat, Mar 4, 2023 at 10:20 AM GPU Group <gpugroup at gmail.com> wrote:
>>>>>>
>>>>>> CHANNEL NODE DESIGN COMPARISON
>>>>>>
>>>>>> v4: channel nodes as written in v4 Spec Draft Sound Component
>>>>>>
>>>>>> Doug proposed: add 2 fields to ChannelMerger MFInt32 indxDst and
>>>>>> indxSrc and eliminate ChannelSelector node
>>>>>>
>>>>>> I have both v4 and Doug proposed implemented in freewrl: if indxDst
>>>>>> or indxSrc is empty, thunks to v4
>>>>>>
>>>>>> I tested both methods on 3 scenarios and they both work as follows:
>>>>>>
>>>>>> a) swapping 2 channels
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='6' >
>>>>>>
>>>>>> <ChannelSelector channelSelection='1'>
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter'
>>>>>> channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelSelection='0'>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> Doug proposed
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indxSrc='0,1'
>>>>>>
>>>>>> indxDst='1,0'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter' channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> b) merging 2 channels into 1
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='6' >
>>>>>>
>>>>>> <Gain>
>>>>>>
>>>>>> <ChannelSelector channelSelection='1'>
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter'
>>>>>> channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelSelection='0'>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </Gain>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> Doug proposed
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indxSrc='0,1'
>>>>>>
>>>>>> indxDst='0,0'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter' channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> c) merging 2 channels into 2nd merger channel (skipping first output
>>>>>> channel)
>>>>>>
>>>>>> v4
>>>>>>
>>>>>> <ChannelMerger channelCount='6' >
>>>>>>
>>>>>> <Gain/>
>>>>>>
>>>>>> <Gain>
>>>>>>
>>>>>> <ChannelSelector channelSelection='1'>
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter'
>>>>>> channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> <ChannelSelector channelSelection='0'>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelSelector>
>>>>>>
>>>>>> </Gain>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>> Doug proposed:
>>>>>>
>>>>>> <ChannelMerger channelCount='6'
>>>>>>
>>>>>> indxSrc='0,1'
>>>>>>
>>>>>> indxDst='1,1'
>>>>>>
>>>>>> >
>>>>>>
>>>>>> <ChannelSplitter DEF='Channel_Splitter' channelCount='6'>
>>>>>>
>>>>>> <AudioClip url='"sound/6_Channel_ID.wav"'/>
>>>>>>
>>>>>> </ChannelSplitter>
>>>>>>
>>>>>> <ChannelSplitter USE='Channel_Splitter'/>
>>>>>>
>>>>>> </ChannelMerger>
>>>>>>
>>>>>>
>>>>>>
>>>>>> /CHANNEL NODE DESIGN COMPARISON
>>>>>>
>>>>>> -Doug
>>>>>>
>>>>>>
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