For all of you convolution fans there is a Gigapulse demo video (.rm format) at:

http://trio.harmony-central.com/ramgen/115AES/Tascam-GigaPulse.rm

Rudi

I like the CPU management aspect,room placement ect.,but he didn't mention what latencey he was running at,or wether he was using inserts or aux.,I guess time will tell.

I was at the live demo. There was negligble latency, and they were on inserts.


-Eric

EricRichmond wrote:

I was at the live demo. There was negligble latency

I meant what latencey was his audio interface was set to in samples.In Sonar with the SIR & directixer,I have to set the latencey(samples on my card) very high if I put in the aux bus,but not inserts.

I'm not sure of the exact latency he was using in his host (Nuendo 2.0)

However, he had the plug on inserts and there was no noticabe latency. I wouldn't get too concerned about the actual number of the latency slider, he did have non-noticable latency, which means if you have any kind of professional card (which you do), then you should be able to get negligble latency as well.

My guess however, is at that price point, it should perform on altiverb's level, which is realtime, or else people won't buy it imo.

(the price is $399 msrp, or $349 street price)

That's the impression I got as well: real time (i.e whatever the basic latency of the soundcard was which is probably less than 10ms).

The difference with SIR is that SIR needs a certain amount of audio data before it can perform its magic. That's known as a buffer and it creates an additional (and quite large) latency on top of your soundcard (minimal) latency.

My guess is that Gigapulse uses proprietary algorithms that only treat very small blocks of data at a time to provide near real-time response. There is a number of technical papers inc. a patented process on the subject of dividing the data into small fixed block.

Rudi

If the plug has the same quality as the advertising video I'll rather hesitate to buy it.....

I have looked at the video, but my understanding of English language spoken is very poor.

To EricRichmond:

Since you were there, I want to ask some details, maybe you can help here...

In the video, if Im not wrong, the Gigapulse inserts are used in Nuendo playback mode, not playing in realtime, then the latency is compensated by the host. So looking at the video I cant know about the realtime latency of this plugin.

Did there be some kind of demonstration playing in realtime where may look at the latency that Gigapulse was introducing ?

At the end of the video the guy shows the performance meter, it shows around a 25/30%, with 4 gigapulse inserts it not look bad, in this moment the guy has activated the special "tail extension" function in order to reduce the cpu use? How much this function reduce the cpu use?.

Anyway this reverb looks very interesting.

Thanks in advance.

Greetings

Can't watch the video for some reason. Rats.

Got to admit, I don't know why more convolution reverbs don't have a feature to mangle the reverb to something a bit shorter or longer.