proteaaudio alternatives and similar packages
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ProteaAudio is a stereo audio mixer/playback library for
- Linux (PulseAudio)
- Macintosh OS X (CoreAudio)
- Windows (DirectSound)
Supported audio formats:
- Raw linear PCM
Samples can be loaded from file or memory.
stack setup stack build
stack --nix build
import Control.Monad import System.Environment import System.FilePath import qualified Data.ByteString as SB import Control.Concurrent import Sound.ProteaAudio waitPayback = do n <- soundActive when (n > 0) $ do threadDelay oneSec waitPayback oneSec :: Int oneSec = 1000000 -- micro seconds main = do args <- getArgs filename <- case args of a : _ -> pure a _ -> fail "usage: proteaaudio-play SAMPLE_FILE_NAME" result <- initAudio 64 44100 1024 -- max channels, mixing frequency, mixing buffer size unless result $ fail "failed to initialize the audio system" -- (A) load sample from file sampleA <- sampleFromFile filename 1.0 -- volume -- start two sound tracks with shared sample data sndTrkA <- soundPlay sampleA 1 1 0 1 -- left volume, right volume, time difference between left and right, pitch factor for playback threadDelay oneSec -- wait 1 sec sndTrkB <- soundPlay sampleA 1 1 0 1 -- left volume, right volume, time difference between left and right, pitch factor for playback -- play 3 sec threadDelay $ 3 * oneSec soundStop sndTrkB -- wait sndTrkA to finish waitPayback -- (B) load from memory buffer buffer <- SB.readFile filename sampleB <- case takeExtension filename of ".ogg" -> sampleFromMemoryOgg buffer 1.0 ".wav" -> sampleFromMemoryWav buffer 1.0 soundPlay sampleB 1 1 0 1 -- left volume, right volume, time difference between left and right, pitch factor for playback waitPayback finishAudio