Bug 8993 – Automatically change subwoofer crossover frequencies when line out plugged in

Bug 8993 - Automatically change subwoofer crossover frequencies when line out plugged in

Summary:

Automatically change subwoofer crossover frequencies when line out plugged in

Status:	RESOLVED FIXED

Product:	Logitech Media Server
Classification:	Unclassified
Component:	Player UI
Version:	unspecified
Platform:	PC Windows XP

Importance:	-- normal (vote)
Target Milestone:	---
Assigned To:	Caleb Crome

URL:
Keywords:

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2008-08-01 18:03 UTC by Caleb Crome
Modified:	2008-08-28 17:08 UTC (History)
CC List:	2 users (show)

See Also:
Category:	---

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Description Caleb Crome 2008-08-01 18:03:58 UTC

Boom has a new command BDAC 6, that can update a volume->biquad map that maps volume to woofer/subwoofer crossover frequency.

See how this is used in Player/Boom.pm, reconnect().  The default values are shown in one of the examples.

When the line-out is plugged in, you should set the array to something like, "[0, 0, 0, 0, 0, 0, 0, 0, 0x8FFFFFFF]"
which will force biquad index 8, which is the highest crossover frequency.

When un-plugged, go back to the default map.

Comment 1 Chris Owens 2008-08-04 10:23:25 UTC

Should this be assigned to you, Caleb?

Comment 2 Caleb Crome 2008-08-12 14:01:21 UTC

Fixed in SC 7.2 r2258 and ip3k r4723.

Added another BDAC command to allow for 2 different woofer biquad settings -- one for when the subwoofer is being used, the other when its not.

This allows for sliding bass extension filters when no sub is plugged in (even if sub mode is set in software), and for fixed (~100 Hz) crossover when the sub is enabled and plugged in.