#258076 - 13/06/2005 02:32
V3 alpha questions
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member
Registered: 08/01/2002
Posts: 103
Loc: Utah & Silicon Valley
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1. Where can I find the complete list of changes from V2 final to V3 alpha 8? The release notes for each release are cummulative and all the V3 versions before alpha 7 are no longer on the v3alpha page. 2. I believe V3 supports FLAC. Given a stock RioCar player without expanded RAM am I going to be able to play files encoded with FLAC and will the hard drive ever spin down? 3. Failing question #2 how is pca's RAM expansion board working out? Works for all builders, some, none, only mlord had trouble ? -- Craig
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#258077 - 13/06/2005 03:39
Re: V3 alpha questions
[Re: Sipho]
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carpal tunnel
Registered: 20/12/1999
Posts: 31602
Loc: Seattle, WA
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Quote: Where can I find the complete list of changes from V2 final to V3 alpha 8?
There isn't one. V3 came from a fork of an early beta branch of V2 before it went final. In fact, it contains many V2-beta bugs that have since been fixed in V2 final, but still exist in V3. The one thing I'd really love to see is a diff of the empeg bugtracking database between the day of that tree split and V2 final, so I could know exactly what bugs to check for in V3, so we could know what got fixed since then and what didn't. We don't have that, unfortunately.
I should note that so much was overhauled from that V2 branch to V3, that even such a list would be mostly non-useful. They ripped out large portions of the underlying code and replaced them with new stuff. The new stuff is what allowed things like FLAC playback and so on, and served as the basis for the Karma playback engine.
Quote: I believe V3 supports FLAC. Given a stock RioCar player without expanded RAM am I going to be able to play files encoded with FLAC
Yes.
Quote: and will the hard drive ever spin down?
No.
Quote: how is pca's RAM expansion board working out?
Not sure on that one. Don't know if anyone's been reporting on success or failure yet, he only just recently got a few out the door.
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#258078 - 13/06/2005 04:12
Re: V3 alpha questions
[Re: tfabris]
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member
Registered: 08/01/2002
Posts: 103
Loc: Utah & Silicon Valley
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Well, is there any sort of summary of new features in V3? Did anyone cache each of the V3 release notes before they were removed from the empeg site?
-- Craig
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#258079 - 13/06/2005 04:24
Re: V3 alpha questions
[Re: Sipho]
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carpal tunnel
Registered: 20/12/1999
Posts: 31602
Loc: Seattle, WA
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Quote: Did anyone cache each of the V3 release notes before they were removed from the empeg site?
Good question. Let's see... on my hard disk, I've got internal V3 alpha release notes for alpha 1, 2, 3, 5, and 8. With the permission of the empeg guys I could post those. (Some of those were internal alpha-team NDA only.)
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#258080 - 13/06/2005 04:40
Re: V3 alpha questions
[Re: tfabris]
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member
Registered: 08/01/2002
Posts: 103
Loc: Utah & Silicon Valley
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Quote:
Quote: and will the hard drive ever spin down?
No.
So from what I've read in old posts on RAM expansion I should only have to add two RAM chips (MT4LC1M16E5TG-5) to have enough to keep V3 with FLAC happy. If so I should probably go the stacked-chip route instead of pca's RAM board. True?
-- Craig
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#258081 - 13/06/2005 04:41
Re: V3 alpha questions
[Re: tfabris]
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carpal tunnel
Registered: 20/12/1999
Posts: 31602
Loc: Seattle, WA
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You know what? I'm pretty sure the text you're looking for was part of one of the public alpha releases, just copied and pasted from the alpha1 release notes. Here's that block of text: Quote:
This version marks the return to releasing from the empeg trunk, which has received a great deal of development over the last year or so since v2 was branched. The changes are too numerous to list in full, but most are under the hood, therefore only major functional changes will be listed here.
The player audio path has been entirely replaced with a new filter graph network implementation. This addresses two major design goals - extensibility and reliability. It is now trivial to incorporate new filters (e.g. codecs, special effects, beat matching etc) into the audio path, and in future the interface for this could even be exposed for third party plug-ins. The filter graph itself is designed to inherently assure glitch free playback (when fully debugged).
The player now includes Ogg Vorbis support. Ogg playback should be work in exactly the same way as MP3 and WMA, as you would expect.
Reorganised the menu structure: Added "Playback" to the main menu, and moved Shuffle and Repeat into it along with some new features (see below). This will be controversial, but it keeps the main menu manageable and is fast to get to, right next to Playlists.
An auto gain control (AGC) filter has been incorporated. When listening to content in a noisy environment it can be difficult to hear detail in the quiet passages. Automatic Gain Control is a process which adjusts the overall gain of the audio output relative to the loudness at that point in time. Effectively it is a type of real time audio compression. The level of AGC required can be chosen from the Sound menu.
A pitch bend filter has been incorporated. This is effectively a playback speed control, similar to that found on DJ record decks. The pitch can be set from the Sound menu, although ultimately this may require a different interface.
A stereo separation filter has been incorporated. Certain early stereo tracks (e.g. ones by the Beatles) are recorded with most or all instruments panned to the extreme left or the extreme right. This type of sound can be disturbing on in-car speaker systems, and this filter compensates by mixing a little of the left channel into the right channel and vice versa. Emplode can be used to set a property for each track indicating that it falls into this category (currently titled Stereo Bleed). The filter can be set via the Sound menu to compensate for all tracks (not recommended), tracks marked by emplode, or switched off.
A crossfade filter has been incorporated. In Cross Fade mode the player will mix consecutive tracks together in a similar way to a radio DJ, offering a more seamless listening experience. This also has the effect of reducing or eliminating gaps between tracks, but it should be noted that this is NOT a solution for beat matched continuous mixing. The user can select the length of the mix from 0 to 5 seconds from the Playback menu.
An intro scan filter has been incorporated. This feature plays back the first 10 seconds of each track before progressing to the next track. The scan is switched on or off from the Playback menu. It can also be switched off by pressing Play, or skipping track.
Incorporated the track profiler (for the seek tool) into the filter graph, and increased accuracy.
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#258082 - 13/06/2005 04:44
Re: V3 alpha questions
[Re: Sipho]
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carpal tunnel
Registered: 20/12/1999
Posts: 31602
Loc: Seattle, WA
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Quote: So from what I've read in old posts on RAM expansion I should only have to add two RAM chips (MT4LC1M16E5TG-5) to have enough to keep V3 with FLAC happy. If so I should probably go the stacked-chip route instead of pca's RAM board. True?
Don't know, I'm going to let someone more qualified answer that question, someone who uses FLAC and also has the RAM upgrade.
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#258083 - 13/06/2005 05:00
Re: V3 alpha questions
[Re: tfabris]
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member
Registered: 08/01/2002
Posts: 103
Loc: Utah & Silicon Valley
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Thanks much for grubbing around and finding this
-- Craig
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#258084 - 13/06/2005 08:09
Re: V3 alpha questions
[Re: Sipho]
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carpal tunnel
Registered: 13/07/2000
Posts: 4180
Loc: Cambridge, England
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Quote: Did anyone cache each of the V3 release notes before they were removed from the empeg site?
Did we remove any? I thought all the public alphas were still public. There were, of course, non-public alphas.
Peter
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#258085 - 13/06/2005 14:56
Re: V3 alpha questions
[Re: peter]
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carpal tunnel
Registered: 29/08/2000
Posts: 14496
Loc: Canada
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The ones I have here include v3-alphas 1,2,3, 5,6,7, 8,8RE, and 9. No number 4.
Cheers
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#258086 - 13/06/2005 23:45
Re: V3 alpha questions
[Re: mlord]
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pooh-bah
Registered: 19/09/2002
Posts: 2494
Loc: East Coast, USA
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"V3 alpha 4, The Lost Floppies" How many more times can I quote that, hehe.
_________________________
- FireFox31 110gig MKIIa (30+80), Eutronix lights, 32 meg stacked RAM, Filener orange gel lens, Greenlights Lit Buttons green set
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