Rockbox.org home
Downloads
Release release
Dev builds dev builds
Extras extras
themes themes
Documentation
Manual manual
Wiki wiki
Device Status device status
Support
Forums forums
Mailing lists mailing lists
IRC IRC
Development
Bugs bugs
Patches patches
Dev Guide dev guide
translations translations
Search



Donate

Rockbox Technical Forums


Login with username, password and session length
Home Help Search Staff List Login Register
News:

Thank You for your continued support and contributions!

+  Rockbox Technical Forums
|-+  Rockbox Development
| |-+  Feature Ideas
| | |-+  Left Right time alignment
« previous next »
  • Print
Pages: [1]

Author Topic: Left Right time alignment  (Read 3610 times)

Offline eric14

  • Member
  • *
  • Posts: 7
Left Right time alignment
« on: August 07, 2008, 10:53:31 PM »
 I was sent here from the Audio Playback and Play list forum. http://forums.rockbox.org/index.php?topic=18051.0
 After some great feedback and support in that forum, it was suggested that I come here with my idea for a new feature that Rockbox should already be set up to do.. I think.
 I'm building an auto sound system using my 60gig Ipod as the only head unit (receiver). Every reason that would make that a bad idea is addressed by Rockbox! Plus a parametric EQ 8).. Cool.
 What I was hoping to find by entering the forums was a left-right time delay feature that I might have missed in the manual. Now while I have no head unit at all, I know there are a lot of people that are using their Ipods (or other brand) docked to their head units. For those of them that paid somewhere near $1000 for that unit, and were able to use the 3-way active crossover and time alignment feature, more power to'em. But for most people docking their Ipods, even if they're using a built in 3-way crossover in the head unit, there is no feature to delay the sound to the driver to correspond to the speaker furthest from him (her).
 After reading through the section on crossfeeding, I was hoping that a simple left side/ right side alignment might be possible. By dropping most of the features, and adding an adjustment for delay in milliseconds.
 The only way to achieve a true time alignment from an Ipod would be to have an on board crossover, and run three separate lines out. Not happening. But, if a simple time delay for only left  and right channels were available, then most of the off center driver's seat issues would be addressed. Especially if the builder of the system paid attention to grouping the mid-bass, mid range and tweeters as closely together as possible. Like I did!
 As always, thank you for your time. And thank you for Rockbox!!!
                                                                                                 Eric.
Logged

Offline preglow

  • Developer
  • Member
  • *
  • Posts: 164
Re: Left Right time alignment
« Reply #1 on: August 10, 2008, 08:53:09 AM »
Well, this would just be a simple (unless sample granularity delay times aren't good enough) delay line, adding little overhead in terms of size and CPU usage, but someone would have to code it, and right now it won't be me...
Logged

Offline eric14

  • Member
  • *
  • Posts: 7
Re: Left Right time alignment
« Reply #2 on: August 10, 2008, 06:23:22 PM »
 I wish I could.. I've never even written a program before! I would take this on myself with all the time and patience to get it right. I promise.
 If it were a motocross bike, I could have it running to perfection. But in this case I'm, well, a Newbie...
                    Thanks again.     Eric
Logged

  • Print
Pages: [1]
« previous next »
+  Rockbox Technical Forums
|-+  Rockbox Development
| |-+  Feature Ideas
| | |-+  Left Right time alignment
 

  • SMF 2.0.19 | SMF © 2021, Simple Machines
  • Rockbox Privacy Policy
  • XHTML
  • RSS
  • WAP2

Page created in 0.053 seconds with 17 queries.