Stereo Tool

Hi Hans,
I oredered parts for PC for Microphone processing. I'll put MAYA44 soundcard because good MIC input with phantom.
So, i was thinking about some things specially on latency.

I still don't know what processing i'll use but maybe it will have PreLimiter, Noise Gate, Band-pass, Multiband, and hard Limit.

Because all processing parts in ST use separate channel processing, for microphone and for mono streaming this is not needed.
Is it than possible to have Mono processing for all processors in ST ?
If that is possible i think latency and CPU usage will be reduced .. say .. by half, which is good for "Microphone Only" processing, because latency and CPU usage, and mono streaming, because CPU usage.

If you have time, can you suggest some "MIC preset" ?
tnx.

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control point
control point2

Hi Bojcha,

This may come as a surprise but...

1. Latency won't be affected by processing a single channel. The latency is needed PER channel to be able to detect low bass sounds correctly. Having said that, you should be able to get away with Low Latency mode since there won't be very deep bass sounds in your microphone input, and probably also without the new bass limiter, which greatly reduces the latency.

2. CPU load will be affected, but only slightly. Most of the CPU-intensive filters are optimized using SSE2, which means that both channels are processed using a single CPU instruction. If I process only 1 channel I still need the same instructions, only one channel would be ignored.

The Final Limiter and Loudness filter could be improved slightly more (33%) because I can replace 3 operations by 2 for each step. But in total, the effect would't be much more than about 20% for CPU load and 0 for latency.


Note: Maybe some other steps will help as well. But the CPU load would never be reduced more than about 1/3rd because for MOST of the processing it just doesn't matter whether you use 1 or 2 channels.

i'am wont worry about CPU usage but Latency.
My fast test shows multiband (hq ON and Hi Quality) eat ~88ms latency.

I'll wait for PC and soundcard to come and see how things goes.
...

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control point
control point2

Just multiband? I'll have to do a new measurement to be certain, but I think the Multiband latency is about 17 ms. Add to that the minimum ASIO latency of 20 ms (which I can lower now btw - the low latency latencies have been reduced so lower values might work correctly) and you get about 40 ms, not 88...

(You are using low latency more, right?)

Acctualy i was not measure right.
At home i have E-MU card to try asio .. but i can't use it with ST. If i turn off asio it works.
With asio sound is strange and very low input level...

I tryed BBP Asio .. and it works with EMU0202.

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control point
control point2