Yamaha DTXpress/DTXplorer/DTXtreme

liberatusvirus wrote:

>>I thought about using a computer for this. It should be possible to 
>>connect the trigger output to the mic input of the sound card and 
>>convert the amplitude to a MIDI signal. But I doubt that the latency is 
>>low enough for a natural feeling. What do you think is an acceptable 
>>delay between trigger impulse (hit the drum) and hearing the audio 
>>signal? 1, 2 or 3 ms?

> Frankly, I don't know. You'd have to try it, or wait for someone with 
> more knowledge about it to respond. My gut feeling is that latency 
> due to such a conversion would be too large.

latencies around 3 ms should be possible. what you need is a computer 
capable processing the input without delays an interrupts, for example a 
linux with a lw latency kernel and sound card, which can be configured 
to only use 64 samples buffer size. 64 samples at 48khz sample rate 
equals a latency of 1,33 ms, at 96khz you have 0,66 ms. the problem is 
that most operating systems are not designed for low-latency or 
real-time operation.

but i think 3 ms should be possible. is this too much? what is the 
latency of a dtxth, dtxpress, alesis dm5/d4/dm-pro, roland td-5/7/8/10?