Mpc v1 or v2??

2001-11-11 13:04:51

In the new mpc encoder there were two files in the zip.
One marked v1 and one marked v2.

What's the difference and what should be used?



Jan.

Mpc v1 or v2??

Reply #1 – 2001-11-11 16:53:24

Having tried both, on a PIII Coppermine, the only difference I can see from a quick look is that v2 is marginally faster than v1. Anyone know anything different?

Mpc v1 or v2??

Reply #2 – 2001-11-11 17:47:20

Just tested both encoders with one wav and compared the results with fc/b. They were not bit-by-bit identical.

Mpc v1 or v2??

Reply #3 – 2001-11-11 17:59:52

I can confirm both John33's as Case's experiences. On my Celeron 500 v2 was marginally faster (3.51x vs. 3.58x) and the v2 mpc file was 4 bytes bigger. I just tested one song.

Mpc v1 or v2??

Reply #4 – 2001-11-11 18:24:38

Interesting...
On the track I tried, both v1 and v2 produced identical file sizes but were the magical 4 bytes larger than that produced by 0.90e.

Is that the 0.1% difference on the display on 0.90e? ie. 99.9% rather 100% complete when finished.

Mpc v1 or v2??

Reply #5 – 2001-11-12 12:26:15

Quote from Frank:

On some machines V1 is faster (Athlon?), on other V2 (P2, P3?).
There's currently no 3DNow! or SSE code in it, but the Athlon
dislikes unordered memory accesses, the P3 math operations.

Mpc v1 or v2??

Reply #6 – 2001-11-12 15:47:51

So, you should just use what ever is fastest for you, or what???

Are there a difference on enything else?



Jan.

Mpc v1 or v2??

Reply #7 – 2001-12-26 15:14:48

Holy crap....these encoders are that fast without SIMD!? Wow.