package main import ( "bytes" "time" "os" "github.com/pion/opus" "github.com/pion/opus/oggreader" "github.com/gopxl/beep/v2" "github.com/gopxl/beep/v2/speaker" ) func main () { f, err := os.Open("./sample4.opus") if err != nil { log.Fatal(err) } }