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DOOM 3: Has no sound – MacGameStore Support
https://macgamestore.zendesk.com/hc/en-us/articles/360034302694-DOOM-3-Has-no-sound
DOOM 3: Has no sound. The no sound with Doom 3 issue can be resolved by changing the default bit rate in your Midi Setup from 2ch - 24bit to 2ch -16Bit. To do this, open the Audio Midi Setup control panel in the Applications/Utilities folder. Change "Properties For": to "Built - in Output" instead of "Built-in Mic".
Download Doom 3 for Mac | MacUpdate
https://www.macupdate.com/app/mac/17466/doom-3
I just got a reply from the Aspyr support: Hello Jeron, While the retail full version of Doom 3 does support third party sound cards, the demo does not. To get your sound working, you will have to disable your sound card and use the built-in audio. Sorry for the inconvenience. Thanks for your interest in Doom 3 and have a great day!
Doom 3 Surround Sound - Mac Action & Shooters - Inside …
http://www.insidemacgames.com/forum/index.php?showtopic=29976
To give you 5.1 audio, Doom 3 needs sound hardware that can do 5 channel mixing. Your iMac lacks this. It can play back pre-recorded 5.1 audio, but not mix it on the fly.
Doom3 Source Port - dhewm3
Compared to the original version of Doom3, dhewm3 has many bugfixes, supports EAX-like sound effects on all operating systems and hardware (via OpenAL Softs EFX support), has much better support for widescreen resolutions and has 64bit support.
Doom 3/Quake 4 Audio Issue - MacRumors Forums
https://forums.macrumors.com/threads/doom-3-quake-4-audio-issue.1974563/
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