Auto volume on startup - Page 2

hari-bhari · 02-04-2007, 04:41 PM

sure, thanks! if you have too much on your plate, just send me the relevant function and i should be able to edit it for you and send it right back

shouldnt take very long at all.

justintime · 02-04-2007, 07:03 PM

stric: If you do redesign it, I think I see a problem. How will your code determine the 'intended' reference volume? If the plugin is constantly changing the volume for you, then how will it know when I manually change it up/down, and set a new reference volume? (won't it be confused, given that the volume is constantly changing anyway? How will the code differentiate between a manual up/down volume, vs the plugin changing it as part of the adaptive volume schemes?)

hari-bhari · 02-04-2007, 11:22 PM

Quote: Originally Posted by justintime

stric: If you do redesign it, I think I see a problem. How will your code determine the 'intended' reference volume? If the plugin is constantly changing the volume for you, then how will it know when I manually change it up/down, and set a new reference volume? (won't it be confused, given that the volume is constantly changing anyway? How will the code differentiate between a manual up/down volume, vs the plugin changing it as part of the adaptive volume schemes?)

i thought of this exact issue. the way i see it, there are two solutions. they are as follows

1) The first option would be to follow a similar procedure as to what i listed above. there is no need to track a reference volume, only to track the current volume. any time the driver's speed crosses into a new threshold (we'll call 10-30mph level 1, 30-50mph level 2, etc), the current volume will be adjusted up or down by a fixed amount. so if a driver is in speed level 1, and he crosses into level 2, the current volume would be adjusted up by a fixed amount, and vice versa. this, i think would be the simplest solution, and would compensate for any manual volume adjustments during driving. it would meet the basic goal of turning the volume up when speeding up, and down while decelerating. This method would be easily overridden by manual adjustments and not interfere with the driver's choice, because it would simply provide CF with a volume up or down command.

2) The second procedure is a little more intricate but may work better. This would involve tracking two volumes, the user set, and the current. User set would be what the driver manually chooses at any given point. The current volume would be based off the user set and increased and decreased according to speed. However, if the volume is manually changed, that volume would become the new user set, and all future current volumes would be based on that value. This method may work a little bit better in allowing more precise control of volume, for example, based on a logarithmic curve of the user set.

Personally, I think option one would be the easiest to program and implement. The user could have three options (as in the Hummer) of how aggressive they would like their volume adjustments. Minimum could provide +/- adjustments of 5 points, Medium could be 10 points, and Maximum could be 15 points. The only trouble I see with using fixed increase/decrease values is that what happens if you have it set to volume 20 at 70mph, and then stop at a traffic light, your volume would hit zero. However, option 2 might be little tougher, but ultimately provide the best solution. It really only involves tracking one more variable, which is the volume that the user manually sets at any given point, which would override any automatic changes.

Anyways, let me know what you guys think or if I could be of any assistant. This feature would be very cool and nice to have, especially for people like me. After upgrading my suspension and putting bigger wheels and tires on, my ride is definitely noisier on a the highway (not that I mind the tradeoff :-) )

I'll try and come up with a pseudo-code algorithm in the next couple of days and post it up here for you guys to ponder over.

stric · 02-07-2007, 02:48 AM

Justintime you have a point here.
I will look into second solution of hari-bhari at the end of the week. It seems good if I understand it correctly.
hari-bhari: I will also send you the part of code so you can change it.

stric · 02-11-2007, 11:34 AM

Hi,

here is new .dll file that sets the volume befoure you hibernate or go to standby. I haven't try hibernate so please can someone test it and report.
Befoure it set when you were resuming ...
Please try and report.

hari-bhari · 02-11-2007, 11:46 AM

Quote: Originally Posted by stric

Justintime you have a point here.
I will look into second solution of hari-bhari at the end of the week. It seems good if I understand it correctly.
hari-bhari: I will also send you the part of code so you can change it.

any word on that code?

stric · 02-11-2007, 11:54 AM

Oh sorry forget it. OK here it is.

Code:

public void TimerEvent(object source, EventArgs e) 
{ 
	try
	{
              speed = int.Parse(this.CF_getGPSInfo(centrafuse.Plugins.CF_GPSInfo.SPEED));
                
	           if(speed<=spee1)
			this.CF_setMixerLevel(CF_MixerDevices.MAIN,val1);
		else
		if((speed<=spee2))
			this.CF_setMixerLevel(CF_MixerDevices.MAIN,val2);
		else
		if((speed<=spee3))
			this.CF_setMixerLevel(CF_MixerDevices.MAIN,val3);
		else
		if((speed<=spee4))
			this.CF_setMixerLevel(CF_MixerDevices.MAIN,val4);
		else
			this.CF_setMixerLevel(CF_MixerDevices.MAIN,val5);
	}
	catch(Exception errmsg) { CFTools.writeError(errmsg.Message, errmsg.StackTrace); }

}

stric · 02-11-2007, 12:00 PM

This is actually event that is fired every X seconds. (You set X in settings as frequency).
It than only checkes in which range current speed is and sets the volume to apropriate value.

Lum · 03-04-2007, 08:18 PM

Quote: Originally Posted by stric

I think it should work when resuming from hibernating. Could you try and let me know?.

Well, I've finally gotten around to trying this. Using the version on the Flux website, it works fine from hibernate, a vast improvement over standard CF which always comes back up at full volume for me.

I haven't tried the new DLL you've posted, since setting it before shutdown seems like a bad idea given the bug I'm suffering. Not sure why you'd want to set it then to be honest.

stric · 03-05-2007, 09:55 AM

Some people say it would be better to set it befoure. I could even do both

Lum · 03-05-2007, 04:43 PM

Well, after the third or 4th sucessful startup, CF once again resumed at full volume, even with this plugin.

I've since found a workaround in the new version of CF anyways, so don't worry about it.