alda.sound — alda 1.0.0-rc50

*play-opts* clj

*synthesis-engine* clj

determine-audio-types clj

(determine-audio-types {:keys [instruments] :as score})

new-audio-context clj

(new-audio-context)

new-synthesis-engine clj

(new-synthesis-engine)

play! clj

(play! score & [event-set])

Plays an Alda score, optionally from given start/end marks determined by play-opts.

Optionally takes as a second argument a set of events to play (which could be pre-filtered, e.g. for playing only a portion of the score).

In either case, the offsets of the events to be played are shifted back such that the earliest event's offset is 0 -- this is so that playback will start immediately.

Returns a function that, when called mid-playback, will stop any further events from playing.

refresh! clj

(refresh! audio-ctx audio-type & [score])

Performs any actions that may be needed each time the play! function is called. e.g. for MIDI, load instruments into channels (this needs to be done every time play! is called because new instruments may have been added to the score between calls to play!, when using Alda live.)

refresh-audio-type! clj multimethod

schedule-event! clj

(schedule-event! engine offset f)

schedule-events! clj

(schedule-events! events score audio-ctx playing? wait)

set-up! clj

(set-up! {:keys [audio-context] :as score})

(set-up! audio-ctx audio-type & [score])

Does any necessary setup for one or more audio types. e.g. for MIDI, create and open a MIDI synth.

set-up-audio-type! clj multimethod

set-up? clj

(set-up? audio-ctx audio-type)

shift-events clj

(shift-events events offset cut-off)

start-event! clj multimethod

Kicks off a note/event, using the appropriate method based on the type of the instrument.

start-finish-times clj

(start-finish-times {:keys [from to]} markers)

start-synthesis-engine! clj

(start-synthesis-engine!)

stop-event! clj multimethod

Ends a note/event, using the appropriate method based on the type of the instrument.

tear-down! clj

(tear-down! {:keys [audio-context] :as score})

(tear-down! audio-ctx audio-type & [score])

Does any necessary clean-up at the end. e.g. for MIDI, close the MIDI synth.

tear-down-audio-type! clj multimethod

with-play-opts clj macro

(with-play-opts opts & body)

Apply opts as overrides to play-opts when executing body