Practice mode speeds

**ruippeixotog** · Joined: 14 Dec 2006 Posts: 220

Does someone know how much slower are the different practice speeds in relation to the original song? I'm trying to replace those three .vgs in custom songs with proper ones, so I can use practice mode without hearing the notes from the old song. For that, I must transpose the song to a higher tone, so it would sound well when stretched, but I need to know how many semi-tones... Their names are p50, p65 and p85, so, can they mean 50%, 65% and 85%?

at least, I made the test with Nero Wave Editor and 50% sounded right to me for "slowest"...

**katamakel** · Joined: 16 Jun 2006 Posts: 1467 Location: Stockholm, Sweden

Yeah, it's something like that.
I've seen some explanation somewhere, but I can't seem to find it now.
Use the best pitch filter you can find, and it's probably a good idea to apply a low-pass filter as well, depending on what target sample rate the practice file has!

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**ruippeixotog** · Joined: 14 Dec 2006 Posts: 220

Yeah, I need to find some appropriated filter to apply. My realtek sound card has a good hardware-based pitch filter, but I think it only outputs for line-out... Wave Editor filter isn't very bad, but there must exist some better one. Do you know some good DirectX filter, or something like that, you recommend?
You could implement that feature on the next ghex... *looks to the other side*

**katamakel** · Joined: 16 Jun 2006 Posts: 1467 Location: Stockholm, Sweden

I have thought about implementing some filters in ghex, but other things are higher on the list right now.
Maybe later.
Try out Gold Wave, it's an excellent wave editor, and the free version is full featured.
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**ruippeixotog** · Joined: 14 Dec 2006 Posts: 220

I tried it now; pitch tuning worked perfectly at Gold Wave, although that program is damn slow (25 min to transpose the song + 5 min to save song? It's running on a 3,2GHz P4, not on my toaster :P). Do I really need to downgrade my .wav to 24/14,25KHz? I don't know why GH uses those sample rates...

EDIT: I replaced a practice vgs with with my converted mp3, and seems ghex automatically converted sample rate... or at least, it showed the right value. it that supposed to happen? :P I tried playing vgs at 50% and it sounded perfectly.

**katamakel** · Joined: 16 Jun 2006 Posts: 1467 Location: Stockholm, Sweden

Nice that it worked.
Yes, for now, ghex resamples from whatever sample rate the source audio you supply it with has, to whatever sample rate the "original" .vgs had for the individual channels.
It greatly simplifies the import dialog

I suggested filtering it beforehand just because the resampling in ghex isn't the best (first version!) and thus will introduce aliasing if resampling down, so if one was to be picky, one would want to remove those pesky high frequencies before importing

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**ruippeixotog** · Joined: 14 Dec 2006 Posts: 220

Ok, I haven't noticed anything in p50 vgs, but as p65 and p85 sample rates are smaller, I will use a lowpass next time. Thanks for the help ;)

**Matt** · Joined: 04 Feb 2006 Posts: 3780 Location: Bethel, Vermont

if p50 sounds in the same key as normal, then it is most likely 50% (or 25, 12.5, etc). 50% will sounds exactly one octave lower.

**tehgizzard** · Joined: 24 Dec 2006 Posts: 10

does anyone have a sound editor that can modify the pitch of VGS files?

**Falango** · Joined: 25 Sep 2006 Posts: 222

Can you just not use Audacity and change the tempo of the song, as it doesn't change the pitch at all.

**katamakel** · Joined: 16 Jun 2006 Posts: 1467 Location: Stockholm, Sweden

Except that's exactly what you'd want to do.
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**tehgizzard** · Joined: 24 Dec 2006 Posts: 10

**ruippeixotog** · Joined: 14 Dec 2006 Posts: 220

**tehgizzard** · Joined: 24 Dec 2006 Posts: 10

^^^^ truth

ne way as i said b4 does ne 1 have such a method of this i would need either

1. a way to convert vgs files back to wav and do it from there

2. a way to modify the vgs file itself

3. a way to get gh1 covers of songs in wav or mp3 format because thats mainly why i need em.