Audio Sources

[mitchmindtree]

It should be possible to add, remove, save and load audio sources dynamically for ease of testing/iteration.

Sources can be either one of:

• Pre-rendered n-channel WAV
• Real-time source (via JACK e.g. Live or MSP)

Real-time sources will require a GUI that allows the user to select from available real-time input devices (JACK) and their channels. The device names and channels should be saved and loaded.

Sources should allow for either fixed-durations or duration ranges (e.g. 5-10secs).

Sources should allow for mapping multiple channels to multiple spatial outputs:

Sources should also allow the user to configure certain spatial movement trajectories. Some example parameters might include:

• "weight" affecting the rate of movement.
• toggle-able movement patterns such as random-walk, n-gon path-tracing, etc, each of which could have some unique params.
• hand-drawn patterns? (GUI might be pretty involved for this).

It should be possible to configure where movement paths may occur and restrict sources to certain locations. E.g. cacophony samples should remain in the cacophony area, but perhaps enter and leave through the edges.

Sources that are currently playing should be display on the GUI, perhaps as circles of a different colour. Their movement path could be shown using using a point path with a gradient that fades toward the oldest part of the path.

[mitchmindtree]

Source type specific GUI:

Wav

• Source directory
• Loop toggle
• Playback duration (if looping enabled)
• Sample duration (view only)
• Number of channels (view only)

Realtime

• Number of channels
• Jack starting channel index (e.g. 4 channels starting from index 5 would use channels 5, 6, 7 and 8)
• Duration range (triggering this sound will cause playback for the given duration)

[mitchmindtree]

On startup, the audio_server should:

1. Load the existing source store if there is one
2. automatically load all .wav files from the assets/wav directory as new Sources provided they don't already exist within the loaded store.

[mitchmindtree]

Source Editor Layout Order:

• Source List
• +WAV / +Realtime
• Name
• Role: None / Soundscape / Installationn / Scribbles
• Source-Specific: Wav / Realtime
• Channel layout: Visualiser + Spread + Rotation
• Moveable: None / Some Weight
  • Movement Patterns: Random Walk / Ngon Path Tracing
• Allowed Areas

[mitchmindtree]

It would be useful to have a small PREVIEW section immediately under the Role selection. Options could be:

• One-shot (Button): Plays WAV sources through once, triggers Real-time sources for their specified playback duration. Could also be triggered by spacebar. If currently playing, pressing again will stop the preview.
• Continuous (Toggle): Continously loops for WAV sources, never-ending input for Real-time sources.

Could send the Source preview as a Sound directly to the audio thread via its msg channel.

[mitchmindtree]

Closing as most of this is implemented and the remaining features can be found in newer issues.