1. Audio Streamer Exploiting simultaneity for listening Chris Schmandt and Atty Mullins MIT Media Laboratory

2. More productive listening time scaling skipping / skimming (SpeechSkimmer) simultaneous listening “cocktail party effect”

3. Simultaneous listening selective attention cues for interest on secondary channels scenarios: audio “channel surfing” evening news on multiple channels sorting old voice mail

4. Streamer overview 3 simultaneous audio sources localized sound (Beachtron, headphones) head position sensors (Fish) user controls gain (attention) Streamer gives cues for interest (tone, gain)

5. Layout and attention switching 60 60’’

6. Selective attention we can select between simultaneous streams streaming factors: tempo, timbre, pitch, gender, location Streamer enhances interest by four levels of gain gain decays, as does attention

7. Listener attention More activity = greater interest Interest decays with time

8. Monitoring auxiliary channels How much do we hear? Streamer enhances possible points of interest Story boundaries, speaker changes

9. Making suggestions tone plus increased gain decays with time

10. Future work listener evaluation bimodal reactions so far browsing a single recording more interaction techniques auditory “info landscapes”