Forum Discussion

Komag's avatar
Komag
Roku Guru
11 years ago

Help me fill in Roku model info for sound channels

Back in this thread: viewtopic.php?f=34&t=79302#p470927
It was mentioned that some Rokus can handle two simultaneous sounds playing via roAudioResource
Here is RokuJoel's sample code:
sound1=createobject("roAudioResource","pkg:/sounds/boom.wav")
sound2=createobject("roAudioResource","pkg:/sounds/laser.wav")
numchannels=sound1.maxSimulStreams()
volume=100
if numchannels < 2 then 
    print "Two channels not supported"
    stop
else
   print numchannels;" are supported"
end if
    channel=0
        sound1.trigger(volume,channel)
    channel=1
        sound2.trigger(volume,channel)

For those of you with many Roku models (looking at you Endless, NewManLiving, BradC), can you help me fill in the info below? I think it would useful for everyone. 🙂

Ignoring classic models, and listing models listed on wikipedia:
MODEL.....maxSimulStreams()
2400......(2)
2450......(1)
2500.......1
3000......(2)
3050......(2)
3100.......2
3400......(2)
3420......(2)
3500.......2
2700......(1)
2710.......1
2720......(1)
4200.......2
4210......(2)
4230......(2)
TV........(1)

EDIT - With RokuMarkn's info, it looks like this - is this what others see as well?
Roku Developer Program

7 Replies

  • EnTerr's avatar
    EnTerr
    Roku Guru
    11 years ago
    "RokuMarkn" wrote:
    I believe 24**, 27** and the TVs are 1; all the rest are 2.
    Perhaps 2400 alone should be 2, since it has the guts of a 3xxx?

    My (uneducated) guess on it:
    model = createObject("roDeviceInfo").getModel()
    isDualChannelAudio = (model > "3" and model < "5") or left(model, 4) = "2400"
  • RokuMarkn's avatar
    RokuMarkn
    Visitor
    11 years ago
    Yes that sounds correct, but you wouldn't actually want to write code like that would you? Why not just use maxSimulStreams?

    --Mark
  • EnTerr's avatar
    EnTerr
    Roku Guru
    11 years ago
    "RokuMarkn" wrote:
    Yes that sounds correct, but you wouldn't actually want to write code like that would you? Why not just use maxSimulStreams?
    Because... i am stupid? :mrgreen:
    I just copy&pasted that from a code i wrote to discriminate the non-ARM/GLES players.

    maxSimulStreams() is better (it was undocumented until an hour ago). Not available on fw3, so (for those who care) will need a guard check the version before trying to call it. Caffè corretto:
    isDualChannelAudio = mid(createObject("roDeviceInfo").getVersion(), 3) > "3" and createObject("roAudioResource", "deadend").maxSimulStreams() > 1
  • Komag's avatar
    Komag
    Roku Guru
    9 years ago
    It's been a while since I visited this issue, but today I fired up my Roku 1 2710 and found that it thinks it now has two simultaneous audio channels (maxSimulStreams reports 2). Is this actually true somehow?
  • RokuKC's avatar
    RokuKC
    Roku Employee
    9 years ago
    "Komag" wrote:
    It's been a while since I visited this issue, but today I fired up my Roku 1 2710 and found that it thinks it now has two simultaneous audio channels (maxSimulStreams reports 2). Is this actually true somehow?


    Yes. All devices running firmware 7.2 should support 2 audio channels for roAudioResource.