7.4 more DSP efficient than 8?

[gaas]

Hey guys!

What do you think about the idea of 7.4 being more dsp efficient than 8? Just out of curiosity

[bonfi64]

of course it is, version 8 i fullfilled with new VI (7.4 don't) and his very heavy on the CPU, this has to do with the fast answer to logic 8, i was on Le with 7.4 and now on HD with 8, Le on tiger was very stable and rarely crash. but Apple came out with Leo and PT have to make a new version very fast, so short time to test version 8, but you know who are the tester in today software?
WE ARE, we should be paid to test new version!!!!!

Pt 9 no, i'll go straight to 10

[Stig Eliassen]

of course it is, version 8 i fullfilled with new VI (7.4 don't) and his very heavy on the CPU

Gaas is talking about DSP, not CPU and VIs.

[bonfi64]

i'm not a tech guy, but i noticed that user like you PT lover stay with the old PT 7.4 and tiger, and with a solid HD3 sistem, wich i guess very stable and solid, so i come to conclusion that is better stay two years behind instead to try (and paid) a new version every 6 month. and don't you think DSP efficency affect CPU? like lots of users complains in PT version 8? i read on this forum many problems loading few TDM plug ins and having the heavy CPU window. i was told when i bought my sistem that you can overload with TDM plugs your session and version 8 is absolute stable, but i discover that you can load maximum 5 or 6 TDM, so i paid 100 to get only 40 from my HD sistem.
maybe because i did the upgrade last year with 54% off the full price!!!

[Camilo Orozco]

I'am still at 7.3 and OSX 10.4, very stable.

I wil go "up to" 7.4 and OSX 10.5 this week (on a separate HD just in case I dont like it)

[Brandonx1]

To answer the original question, you might be able to use a couple more TDM plug ins in 7.4 then 8. They changed the way delay compensation works in 8. They included busses in ADC in version 8 and that takes a little more DSP. The amount of DSP in a TDM system is the same but PT uses more DSP for ADC in version 8. Most people will never notice the difference tho. Around 8.1 or so, digi also fixed a DSP bug that made the mixer share chips on the TDM cards better. So around 8.1, I actually saw a boost in DSP and TDM mixer flexibility in surround sessions.
Best,
Brandon

[Stig Eliassen]

i'm not a tech guy, but i noticed that user like you PT lover stay with the old PT 7.4 and tiger, and with a solid HD3 sistem, wich i guess very stable and solid, so i come to conclusion that is better stay two years behind instead to try (and paid) a new version every 6 month. and don't you think DSP efficency affect CPU?

The reasons that I stay on PT 7.4 and Tiger goes beyond Pro Tools itself. For one, this setup has been extremely stable - it just works.
Furthermore, I don't want to part with my UAD TDM bundle as I use those in every mix. I am in the process of finding replacements, but I'm not in a hurry. Who knew that even plugins have different character?
I bought PT 8 when it was released, and I have installed it on a separate drive with Leopard. I didn't like the GUI much, but that is more me being afraid of change. There are some awesome features for the ICON consoles in v8 that I can't use when being so frickin' stubborn, so it's been a bittersweet decision so far.

DSP efficiency may affect the CPU - this is beyond the scope of my knowledge, and, quite frankly, field of interest. But, OP talks about DSP usage, not CPU usage.

[bonfi64]

ok, so the latest 8.1 is a bug fix, i have it already on a separate drive, will try thanks, anyone can confirm that DSP affect CPU usage? i'm just guessing because i imagine once the cards are fully loaded PT, put under pressure mac pro CPU and the CPU error window came out, i'm right or wrong?

[Brandonx1]

DSP and CPU are two completely different things. That's why TDM is so great. Tons of power and not host processing loss at all. RTAS is host based tho. So if you are using RTAS plug ins or VI's then those are CPU based. PT 9 is probably the best in terms of host processing load.
Best

[JFreak]

Originally Posted by bonfi64

ok, so the latest 8.1 is a bug fix

8.1 is not at all a bug fix !!! it brings most of the PT9 new features to HD systems plus H.E.A.T. is a huge thing that requires 8.1 or later.

sure, it also fixes some bugs, but it's a real feature release