Pro Audio and Music: Implications for Home Networks John Strawn, S Systems Inc. / Yamaha Chair, AES SC-06-02 jstrawn@s-systems-inc.com http://www.s-systems-inc.com Copyright 2003 Yamaha 22 October 2003 1
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios 22 October 2003 2
Media Server File server Pro setup: Studio Machine Room Instr. Mixer Mics Recording Studio II Sound System Keyboard Mixer Recording Studio I Mixing Studio DSP Guitar Mixer Sound System 22 October 2003 3
Pro: Studio 22 October 2003 4
Pro: Venue 22 October 2003 5
Pro: Venue Stage Mixing Console Microphones Loudspeakers Music Instrument 22 October 2003 6
Home setup: less complex? Media Server STB DTV Audio System File server Personal Video Recorder Attic Home Theatre Office Office PC Upstairs Bedroom DTV Sound System After:: CEA Home Network Scenarios Version 1.3 HomeNetworkScenarios.pdf Sound System 22 October 2003 7
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios 22 October 2003 8
Audio Engineering Society SC-02: Subcommittee on Digital Audio SC-06: Subcommittee on Network and File Transfer of Audio SC-06-02 Working Group: Audio over 1394 www.aes.org 22 October 2003 9
AES Standards AES3-1999: Serial transmission format for two-channel linearly represented digital audio data AES11-1997: Synchronization of digital audio equipment in studio operations AES47-2002: Digital audio over ATM 22 October 2003 10
SMPTE SMPTE 320M-1999 Television - Channel Assignments and Levels on Multichannel Audio Media SMPTE 323M-1999 Motion-Picture Film - Channel Assignments and Levels on Multichannel Audio Media 22 October 2003 11
MIDI MIDI Manufacturers Association (MMA) RP-027 22 October 2003 12
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios Interaction, Management, Control Remote interaction Creativity Extensibility 22 October 2003 13
Scenario I: Interaction Ethan and Andy are making music in the family room, Tuesday night. Both are plugged in to the house s 1394 bus. Joe comes over to join them, arriving late. He plugs in his guitar and his effects box. Ethan also starts to play his guitar through Joe s effects box. Meanwhile Ethan s wife is in her office listening to stock reports over internet radio, piped to her office over the same 1394 bus. 22 October 2003 14
Pro / Consumer Audio 1394 TA Connections (1) 22 October 2003 15
Connections (2) 22 October 2003 16
Connection Management - in rehearsal studio - MIDI Audio... 22 October 2003 17
Connection Management - on stage - MIDI Audio... 22 October 2003 18
Control AES-24 AV/C upnp XML MIDI, Midi Show Control, Sys Ex,... Proprietary (RS-242...)... 22 October 2003 19
Sync: Traditional home Source (Example: CD Player) Analog wire Processor (Example: Stereo amplifier) Spkr... Spkr Analog wire 22 October 2003 20
Sync: Distributed processing Source (Example: CD Player 1394 Processing? Spkr w/ DSP... Spkr w/ DSP 22 October 2003 21
Media Server File server Bridges in the Studio Machine Room Bridge Instr. Mixer Mics Recording Studio II Sound System Keyboard Mixer Recording Studio I Mixing Studio DSP Bridge Bridge Mixer Sound System Guitar 22 October 2003 22
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios Interaction, Management, Control Remote interaction Creativity Extensibility 22 October 2003 23
Pro : remote audio Sync/ command source Los Angeles Visual source Screening Room Audio Source EdNet San Rafael 22 October 2003 24
Scenario 2: Remote Lateesha is confined more or less to her room in a rest home. But that doesn't keep her from making music with her friends. Three of her friends get together in one home about twice a week. Lateesha dials in with a MIDI silent drum set, using the voice-activated user interface, since she sees poorly and can't use a GUI. Back in the house where the group is, Lateesha's signal comes in loud and clear. Meanwhile, a group mix is sent back to Lateesha so that she can see how she fits into the ensemble. She adjusts the brightness control on her voice because in her monitor mix, she sounds too bright. She also adjusts the stereo pan because she doesn't hear well out of the left ear, and the stereo image is all jumbled into her right side. 22 October 2003 25
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios Interaction, Management, Control Remote interaction Creativity Extensibility 22 October 2003 26
Scenario 3: Creativity Linda, her husband, and her two children have all made videos during the past year. Now it's time to make a CD-ROM for Christmas for the grandparents, who live on the opposite coast. Linda works at her computer with non-destructive video/audio editing software. She pulls in video clips from her son's computer, and her husband's. She uses her daughter's synthesizer to generate sound, which is triggered via MIDI from Linda's computer. Linda records a voice-over + cues it up. When it's all ready, her husband pulls up the final session from his office in the basement and watches it there, pulling in video and audio sources from all over the house. 22 October 2003 27
Creativity 22 October 2003 28
Creativity: DRM Music as service, not product Level of audio quality vs. cost? Video rent -> audio rent? network support DRM and shifted economic model. DRM can t get in the way of creativity. 22 October 2003 29
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios Interaction, Management, Control Remote interaction Creativity Extensibility 22 October 2003 30
Scenario 4: Exensibility Mitsuko and Gerard move to a new town. She gets involved in local politics, meets some people who like to make music together. She takes her Yamaha synth over to their house to see if they can make music together. Is it an mlan synth, a digital synth with AES/EBU outputs, an old analog synth with analog outputs? How can she plug in to their in-house network? 22 October 2003 31
Legacy consumer Record player Tape recorder Music instrument Video recorder XBox, Playstation,... 22 October 2003 32
Apogee AD8000 22 October 2003 33
Nonstandard: is it 61883-6? 22 October 2003 34
Extensibility: The Next Generation 22 October 2003 35
Outline What is Pro? What is consumer? Pro standards activities My vision: four scenarios Summary 22 October 2003 36
Implications of Pro for Consumer No definite distinction: consumer gear faces pro issues. Many audio sources, destinations Many channels of audio Different kinds of gear 22 October 2003 37
Implications of Pro for Consumer Formats: 61883-x (A/M) adequate for pro, consumer AV/C questionable for pro, maybe consumer. Connection management needs sticky. 22 October 2003 38
Implications of Pro for Consumer Copy protection will trip up pro work, irritate consumer, network will be blamed. Bridging helpful to isolate bus (e.g. reset) but need bridge-aware devices. How to maintain sync in a complicated consumer setup. Not all sources will be on 1 CD. 22 October 2003 39
The Home Network Should: Encourage interaction, locally & remotely. Be easy to manage and control. Encourage creativity. Embrace the unexpected. 22 October 2003 40