Audio Streaming

Audio Streaming

under construction...to be continued...

History

Audio Streaming refers to a data type found in certain GameCube titles which is used for the playback of music, voices, or sound FX. When this data is requested to be used, the DVD drive is commanded to read a designated disc offset length for ADPCM audio data which is converted within the DVD drive's hardware into PCM audio. This converted PCM audio is then relayed to the DSP to be resampled and mixed with any other audio which may be playing. The common practice of using multi-title discs required shrinking the physical length of the title which also broke 32kbyte alignment and resulted in DVD reads from an incorrect offset.

Confusion

GameCube mod chips utilized a feature which corrected streaming audio on backup media labelled "GameCube Audio Fix". This was performed via IPL replacement such as Viper and qoob, or by patching the dvd drive with a drive chips such as XenoGC. Without this games would try to read internally from an incorrect offset, and although the game wouldn't report a read error, there was static instead of audio.

Wii initial modchips (drive chips) provided the same fix as the GameCube modchips did, Wiikey V1 and perhaps V2 even had this.

Then the Wii DVD drives locked modchips out slightly so the only solution was to intercept read commands between the DVD and the Wii and turn them into DVD-Video requests, at this point, any kind of Audio Streaming fix was thrown out the door. Because of this, Audio streaming games would throw read errors and/or play static instead of actual audio.

Modchip manufacturers started using descriptions such as "GameCube Audio Fix" with a new meaning now. These modchips only disabled the streaming audio data to prevent read errors and/or static sound instead of providing a true ability to read the stream data correctly.

Solutions

solutions to play these titles depend on method media or modchip being used.

Gamecube Modchips

all native gamecube modchips work to play audio streaming titles from dvd disc.

Wii Modchips

wii drive replacement modchips usable on gamecube such as wkf/wode will be affected by audio streaming titles due to the design on the modchip. (need validation:) Since these modchip types rely on media such as SD or USB and not the DVD drive, there is no hardware conversion of the ADPCM audio to PCM audio. The modchips do not include onboard hardware conversion nor the ability for firmware based conversion. Without this audio, the GC will display error messages. To work around this issue, the audio stream is disabled by providing a successful (completed) return command to the GC to prevent error messages and in game crashing.
Currently WKF and WODE are not able to send audio streaming data to the gamecube using SD, HDD, USB media respectively. To regain ability to correctly play these audio streaming titles with a drive replacement modchip, a dvd drive must be utilized in conjunction with the modchip in bypass (flat) mode....or using swiss to boot a dvd

	WKF	WODE
original disc	wire mod	nothing
backup disc	xenoGC + wire mod Qoob + wire mod	xenoGC Qoob

• note: IPL replacement modchips (viper) has not been tested and may fail to detect these drive replacement modchips.

and blah blah

these work around mods are the only solutions available to for wkf/wode

Audio Streaming Titles

	TITLE	ISSUES
1	1080 Avalanche
2	Alien Hominid
3	Amazing Island
4	Aquaman
5	Bloody Roar: Primal Fury
6	Bomberman Generation
7	Crash Bandicoot: The Wrath of Cortex
8	Crazy Taxi
9	Dakar 2: The World's Ultimate Rally
10	Darkened Skye
11	Dave Mirra Freestyle BMX 2	No in game music
12	Disney's Extreme Skate Adventure
13	Dragon Ball Z: Sagas
14	Dragon's Lair 3D: Return to the Lair
15	DreamMix TV World Fighters **
16	Eternal Darkness: Sanity's Requiem	No in game music
17	Fantastic 4
18	Freestyle MetalX
19	Freestyle Street Soccer (Urban Freestyle Soccer - PAL)
20	Future Tactics: The Uprising
21	Geist
22	Go! Go! Hypergrind
23	Godzilla: Destroy All Monsters Melee
24	GT Cube **
25	Harvest Moon *
26	Ikaruga	No in game music
27	James Bond 007: Agent Under Fire
28	Judge Dredd: Dredd Vs. Death
29	The Legend of Zelda: Collector's Edition
30	The Legend of Zelda: Ocarina of Time / Master Quest
31	Lost Kingdoms
32	Lotus Challenge
33	Mario Kart: Double Dash (Bonus Disc)
34	Mario Superstar Baseball
35	Monster Jam: Maximum Destruction	no music in menu, no music in game
36	MX Superfly
37	Namco Museum
38	Naruto: Clash of Ninja
39	Naruto: Clash of Ninja 2
40	Naruto: Gekitō Ninja Taisen! 3 **
41	Pac-Man Fever
42	Pikmin 2
43	Pool Paradise
44	Pro Rally
45	Red Faction II
46	Resident Evil
47	Resident Evil 4: Preview Disc
48	Smuggler's Run: Warzones
49	Speed Kings
50	Star Fox Adventures
51	Star Wars Jedi Knight II: Jedi Outcast
52	Star Wars: The Clone Wars
53	Street Racing Syndicate
54	The Sum of All Fears
55	Summoner: A Goddess Reborn
56	Super Monkey Ball
57	Super Monkey Ball 2
58	Swingerz Golf (Ace Golf - PAL) (Wai Wai Golf -JP)
59	Tak and the Power of Juju
60	Tom Clancy's Splinter Cell: Pandora Tomorrow
61	Tony Hawk's Pro Skater 3
62	Tony Hawk's Pro Skater 4
63	Top Gun: Combat Zones
64	Tube Slider
65	Universal Studios Theme Parks Adventure
66	Virtua Striker 3 Ver. 2002
67	Wave Race: Blue Storm
68	Worms Blast
69	Wreckless: The Yakuza Missions
70	XG3: Extreme G Racing
71	XIII
72	Zoids: Battle Legends

| * certain areas??

| ** NTSC - J only