Thanks for the elaboration on this! I'll have to try and reinstall python3 again maybe. For now it works great! nSek more seems like nanoseconds to me. Then again I am Dutch... My German is not 100% Zykluszeit = cycle time. On Sun, Oct 21, 2012 at 5:09 PM, Zo� Blade <zoe@bytenoise.co.uk> wrote: > ** > > > Yes, you're exactly right, the A-112 has a fixed amount of memory, and a > variable sample rate, so the more bytes you use up per second, the less > seconds it can store. It can store 65536 (2^16) samples in each of the two > pages of memory. The reason the files are slightly bigger is because you > can't simply copy all eight bits of each byte at a time, you have to copy > across the first seven bits of each byte first, then all the leftover bits > later on. This is because MIDI requires all data to be 7-bit, whereas the > A-112 is an 8-bit sampler. > > That reminds me, the other thing I'm not sure about yet is the > zero-padding for samples that are shorter than 64kb. Once I get my hands on > an A-112, I'll verify which number I should be sending for the > zero-padding. If it's currently wrong, then the silence between when the > sample finishes and when it stops playing won't have the speaker centred > correctly, and so it may click at the end. > > By the way, if you type in just "python" instead of "python3", then it'll > probably invoke Python 2, which OS X usually comes with pre-installed. That > may give you errors to do with my Python 3 specific code, but certainly > nothing to worry about. > > Oh, and regarding the tuning: one of the things that gets stored in the > .syx file is the sample rate, which insinuates the A-112 should compensate > for this in order to make, say, the 5 position on the tune knob always the > position for the original sample speed. As it's not doing this, I can only > assume I'm calculating the frequency incorrectly. (You can't just tell the > A-112 "this sample is recorded at a 44,100Hz sample rate", you have to > modify that number somehow that seems to involve the number 200, so I'll > use trial and error to figure this out once I have an A-112. Then hopefully > 5 should be the correct tuning for all samples.) > > On that note, is "nSek" German for milliseconds? I could really do with a > translation of this if anyone would be so kind: "sondern Wert f�r > R�ckw�rtsz�hler mit 200 nSek. Zykluszeit." > > Thanks! > Zo�. > > [Non-text portions of this message have been removed]
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Re: [Doepfer_a100] A-112 Sample Dump Tool
2012-10-21 by achtung_999
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