in-room frequency response & transient response

MCPete · 8th October 2011, 02:12 AM

(in his paper on the acoustic suspension method) Villchur says that uniformity of frequency response is an index of transient response.

So consider first of all a theoretical speaker system that has flat anechoic frequency response. Then put that speaker system in a room and the measured frequency response at a some point away from the speaker including reflections from the room is no longer flat. Does this mean that the transient response of the reproduction by the speaker system in the room has been degraded?

Further, if active equalization is used to make the frequency response of the speaker system in-room flat, does this mean that transient response of the reproduction has been restored to optimum.

Also I was wondering if the change of transient response with frequency response is significant, that is, if it would be very noticeable in listening to music.

These are just my theoretical musings that I'm curious about. -Hope that others find this interesting.

-Pete

AllenB · 8th October 2011, 07:31 AM

It's hard to ignore the time delay of the reflections, this is a component of diffractions as well. EQing can have only limited influence and I think there is some good inormation on the perception of time delayed versions of a signal at various time delays to be found on this site.

8th October 2011, 02:12 AM	#1
MCPete diyAudio Member Join Date: Nov 2005	in-room frequency response & transient response (in his paper on the acoustic suspension method) Villchur says that uniformity of frequency response is an index of transient response. So consider first of all a theoretical speaker system that has flat anechoic frequency response. Then put that speaker system in a room and the measured frequency response at a some point away from the speaker including reflections from the room is no longer flat. Does this mean that the transient response of the reproduction by the speaker system in the room has been degraded? Further, if active equalization is used to make the frequency response of the speaker system in-room flat, does this mean that transient response of the reproduction has been restored to optimum. Also I was wondering if the change of transient response with frequency response is significant, that is, if it would be very noticeable in listening to music. These are just my theoretical musings that I'm curious about. -Hope that others find this interesting. -Pete

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Losing the treble and transient response in this PX25 SE amp	rtsang	Tubes / Valves	19	23rd June 2013 11:01 AM
low frequency room response - front vs. rear ported	JLC7	Room Acoustics & Mods	0	3rd May 2009 03:04 AM
Controlling transient response	AdamZuf	Tubes / Valves	29	6th July 2007 02:38 AM
Room mode, so bad bass frequency response (with or without dipole) ;(	mbon	Room Acoustics & Mods	2	21st June 2004 06:53 AM
Doubts on Phase Response and Frequency Response	dumrum	Multi-Way	11	5th April 2004 11:39 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

8th October 2011, 07:31 AM	#2
AllenB diyAudio Member Join Date: Oct 2008	It's hard to ignore the time delay of the reflections, this is a component of diffractions as well. EQing can have only limited influence and I think there is some good inormation on the perception of time delayed versions of a signal at various time delays to be found on this site.