Renamed to hayleigh-dot-dev/elm-audio-graph. That is where the repository lives now. It has not been published as a package under the new name.
Versions published as pd-andy/elm-audio-graph still install under that name. 2 versions of 2 come from the new location (see their notes).
Rerouted (renamed, verified). The GitHub user or repository was renamed. The tag is still there, at the new name. The Lamdera package server serves a copy recovered from https://github.com/hayleigh-dot-dev/elm-audio-graph.
What we checked: The repo moved to github.com/hayleigh-dot-dev/elm-audio-graph. Rebuilt with git archive from commit 0e3f10cf24d8 of https://github.com/hayleigh-dot-dev/elm-audio-graph (zip prefix pd-andy-elm-audio-graph-0e3f10c/, America/Los_Angeles times): the zip is byte-identical to the one package.elm-lang.org recorded, SHA-1 55669d85d3bcd6bd24e1ce51d089a9561a474c32.
The Lamdera compiler uses this copy and prints a one-line notice saying so. elm itself fails to download this version.
Details · package.elm-lang.org's zip: https://github.com/pd-andy/elm-audio-graph/zipball/1.0.0/
The elm-audio-graph provides a type-safe way of constructing Web Audio node graphs. It is important to note that this package does not interface with the Web Audio API directly, but provides methods to serialise the created audio graph to JSON where your javascript can handle the necessary creation and updating of Web Audio nodes.
The basic example shows how to create a simple audio graph from scratch; the resulting serialised JSON is then rendered on the page. Below is the main snippet of that example.
The addNode and addConnection methods return a new updated audio graph and so
can be chained together to quickly construct complex graphs.
Parameter types are restricted, for example the "frequency" param can only accept
Frequency Hertz values. The ensures type safety and reduces the risk of audio
droppouts and unexpected behaviours.
emptyAudioGraph
|> addNode (createOscillatorNode (idFromString "oscA")
|> setParam "frequency" (Frequency 220)
|> setParam "detune" (Value 1.5)
|> setParam "waveform" (Waveform "square"))
|> addNode (createOscillatorNode (idFromString "oscB")
|> setParam "frequency" (Frequency 440)
|> setParam "waveform" (Waveform "sine"))
|> addNode (createGainNode (idFromString "gain")
|> setParam "gain" (Value 0.5))
|> addConnection
(connectionFrom (idFromString "oscA") 0 (idFromString "oscB") 0)
|> addConnection
(connectionFrom (idFromString "oscB") 0 (idFromString "_destination") 0)
|> addConnection
(connectionFrom (idFromString "oscB") 0 (idFromString "_destination") 1)Below is the resulting JSON created when calling JSON.Encode.encode 2 (encodeAudioGraph graph)
{
"nodes": {
"_destination": {
"id": "_destination",
"type": "Destination",
"params": {},
"inputs": {
"audioIn_Left": 0,
"audioIn_Right": 1
},
"outputs": {}
},
"gain": {
"id": "gain",
"type": "Gain",
"params": {
"gain": 0.5
},
"inputs": {
"audioIn": 0,
"gain": 1
},
"outputs": {
"audioOut": 0
}
},
"oscA": {
"id": "oscA",
"type": "Oscillator",
"params": {
"detune": 1.5,
"frequency": 220,
"waveform": "square"
},
"inputs": {
"detune": 1,
"frequency": 0
},
"outputs": {
"audioOut": 0
}
},
"oscB": {
"id": "oscB",
"type": "Oscillator",
"params": {
"detune": 0,
"frequency": 440,
"waveform": "sine"
},
"inputs": {
"detune": 1,
"frequency": 0
},
"outputs": {
"audioOut": 0
}
}
},
"connections": [
{
"outputNode": "oscB",
"outputChannel": 0,
"inputNode": "_destination",
"inputChannel": 1
},
{
"outputNode": "oscB",
"outputChannel": 0,
"inputNode": "_destination",
"inputChannel": 0
},
{
"outputNode": "oscA",
"outputChannel": 0,
"inputNode": "oscB",
"inputChannel": 0
}
]
}