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- -- ****************************************************************************
- -- Play file with pcm module.
- --
- -- Upload jump_8k.u8 to spiffs before running this script.
- --
- -- ****************************************************************************
- function cb_drained(d)
- print("drained "..node.heap())
- file.seek("set", 0)
- -- uncomment the following line for continuous playback
- --d:play(pcm.RATE_8K)
- end
- function cb_stopped(d)
- print("playback stopped")
- file.seek("set", 0)
- end
- function cb_paused(d)
- print("playback paused")
- end
- file.open("jump_8k.u8", "r")
- drv = pcm.new(pcm.SD, 1)
- -- fetch data in chunks of FILE_READ_CHUNK (1024) from file
- drv:on("data", function(drv) return file.read() end)
- -- get called back when all samples were read from the file
- drv:on("drained", cb_drained)
- drv:on("stopped", cb_stopped)
- drv:on("paused", cb_paused)
- -- start playback
- drv:play(pcm.RATE_8K)
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