Re: laptop latency

[Matthias Grob <matthias@grob.org>]

>On Mar 15, 2005, at 18:48, Matthias Grob wrote:
>>>
>>>Latency is actually longer with tube amps than with the transistor 
>>>based amps. Among metal guitarists this is an well known fact.
>>
>>so the tube amp freaks actually like latency?
>
>No, but that latency is so small that you only find a problem with 
>it if you are used to play very close to a transistor amp rig.

so that would be a reason to use transistor amps? never heard...
well, I did hear guitar players talking about the time the electrons 
take to fly throug the tube, but thats very romantic engineering...

if there is an aditional delay, its in the final transformer, I 
suppose, so you would have the same in old transistor amps...

>>do you know what time range this is in?
>
>No. But very, very short. I have no problem with it. I actually like 
>tube amps.

see, thats what I said: very very short, not an issue :-)
another tube anectote... a mistery... they have cold SMD tubes to 
build into the guitars now... and still the sound becomes warm... LOL!

>>>I never measured the latency of air but you can definitely feel it.
>>
>>no need to measure, sound travels at 330m/s which gives you 3ms/m, 
>>easily worse than the computer...
>
>So standing six to nine meters from your amp/speaker is what to 
>compare with, when computer latency ;-)
>
>>this is also due to slow development of the vibration in the horn, right?
>>different from latency.
>
>Could be, but that was not my point. I was talking about the fact 
>that a live gig is PA distributed to the audience with close 
>microphone placement to pick up all instruments on stage. This makes 
>all instruments sound synced in the PA. Now, as a musician you 
>easily adapt to play with "latency" if you have to stand ten meters 
>away from your instrument amp. But if you play "a little early" to 
>compensate for hearing your amp through "air latency" the audience 
>will hear it as if you ware constantly playing "a little late". 
>That's the annoying live problem.

that problem would be very simple to fix with little delays at the mixing 
desk.
did you really experience it?

>A good fix for this, if you are with a band, is to use your own 
>backline for monitoring. The Swedish metal band Meshuggah has 
>developed a very cute system of POD pro boxes and every player is 
>standing close to his monitor. By this set-up they can be assured 
>that the audience will hear it as tight as they deliver.

so they have the complete mix in their monitors?
they hear the drum hit out of the monitor before it comes through the 
air from the drummer?
amazing...

In ear monitoring seems to be the most acurate. I use ordinary big 
headphones on stage with Giba. And when we go off we take them off :-)

>>I am writing an article to collect all those facts...
>
>Interesting! Will you publish it here?

I just did :-)

>Greetings from Sweden
>
>Per Boysen
>---


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