on PAL amigas C-2 is at 8287 so  sounds sampled at 8363 would be played little bit out of tune?

if I convert my samples to 16kHz and use 8-channel mode in octamed4, will the samples be played in 8kHz quality?

omg thanks guize :3

One thing though.
When I save a sample as IFF it can never read them, I have to use MAUD instead.

Dang, this thread is super informative... it answers all of my Amiga sampling questions.
A must read

Oh just found this on pouet

note/period/Hz

C-1 856 4181
C#1 808 4430
D-1 760 4709
D#1 720 4971
E-1 680 5264
F-1 640 5593
F#1 600 5965
G-1 568 6302
G#1 538 6678
A-1 508 7046
A#1 480 745 7
B-1 452 7919
C-2 428 8363
C#2 404 8860
D-2 380 9419
D#2 360 9943
E-2 340 10528
F-2 320 11186
F#2 300 11931
G-2 284 12604
G#2 268 13356
A-2 254 14092
A#2 240 14914
B-2 226 15838
C-3 214 16726
C#3 202 17720
D-3 190 18839
D#3 1 80 19886
E-3 170 21056
F-3 160 22372
F#3 150 23863
G-3 142 25208
G#3 134 26713
A-3 127 28185

I hope I'm not disturbing the dead, but I thought I'd try and simplify things.

This is what I remember form back in the day, and I googled to confirm, so here goes:

1. For general non-melodic samples (vocal, perc, etc), it's common to use F-3 because it's half the 44.1khz CD frequency, so 22.372 Hz.

Don't remember why exactly, maybe it assumes sampling from a CD-quality source, and then it makes sense like scaling an image to 50% giving better results than scaling 43.7%.

2. For melodic stuff you want it tuned to C, so 16.726Hz. Halve that for an octave lower, etc.

3. If you want to get the highest possible frequency, go for A-3 = 28.185 Hz

4. DSS was by far the best Amiga sampler I ever saw. I had amazing results with it even sampling from tape, esp if using it's own software.
It is however hard to believe that there are no proper software resamplers with antialias or dithering or whatever is needed to make it not sound like shit. Will definitely investigate more as I finally got my "channel z" fitted with a CF card.

YECH, Octamed! xD
What I hear is line-level noise. Isn't that kinda normal? Every line input has some noise.
Then again I wouldn't discard the possibility of the sampler being broken.

That's strange.
Well, You WILL hear some strange noises while You press "MONITOR" before recording (to set a proper volume level)

on the right hand side, middle.
But when You press RECORD then, it should sound clear.
Supposedly Your sampler is broken.

Well, I ask this because I got two samplers myself now, and I am finding it hard to capture noiseless signals. I usually have to crank up the gain a damn lot and this makes things go bad.

I don't have a DSS (damn, hat was my first tracker! DSS Sound Studio!) though, I have a generic black box sampler and an AMAS2. I think the problem with the AMAS2 is that it also has a MIC input so teh preamps are kinda shitty.

Akira: I don't know how about Ctrix, but back in 1994 I was using Amiga itself (the only 16bit computer I had in that time). I bought a sampler interface (somebody mentioned it above, I suspect) and was recording samples on OctaMed, from my Yamaha keyz. Quality was very good however last times I found I can't use these sampls for instance on Atari XL and its pokey because they make distortions (unlike samples made on PC). Hm. Interesting.

Tips from the masters. Yay!
However, I will be a nitpicker: what did you do, cTrix, when you didn't have any of these wondrous tools you have nowadays?

Use CoolEdit Pro.

Convert sample into 8bit, mono, 16Khz (well, the last one - more/less. Depends what You need. I use 16Khz anyway). Don't forget about normalization (99%).

Save as "iff".

If the sample is short, then OctaMed willl load it without any problems.

If it's longer, then it will ask if load the sample as RAW. Press "Y".
You will find a short bug on the beginning of the sample then (from wrong file's header). Select it and CUT.
The sample is ready to use.

Maybe.  Sampling for Amiga is a mission.  This is how I generally approach things.

For long phrases I use 8363hz or 16726hz into a DSS sampler on the Amiga - sections like the "Horses" sample or the "Look Around You" section.  I just like the dirty sound.  Sampling from C64 works well like this too although I blew up a SID chip recently, so I'm back to using my PC and being VERY careful when sampling from the C64.  Don't use tube based pre-amps either - that was the other case when I lost a SID chip.

Sometimes I find it's better to actually cross convert from PC.  If I want to get samples sharp (like kit sounds or loops) I sample them at 48khz on a Lynx card with Aurora front end or my trusty old Edirol UA-5.  My DX7, DSI or MC202 are good to sample from for notes; although you gotta make things big so they don't suffer from quantisation distortion due to bit exhaustion.  I then use Cool Edit using certain plugs to EQ and compress them to an optimal fat waveform - but not too hard else they lose their punch.  To keep the "punch" I sometimes just use gain to push a sample over 0db and just clip spikes off.  For hifi samples I usually convert them to 26khz - 28khz which the Amiga handles fine - keep in mind that because the filters sound better OFF (in my opinion) even kick drums or bass notes will benefit from a high sample rate to get that waveform nice and rounded else they'll start ringing.  Sometimes you need to resample to a 5th higher and an octive higher so you have coverage for all the notes.  Loops often sound good at 16726 (aka middle C3) or somewhere around 21khz.  There is no one sample rate - sometimes you juse save 5 or 6 versions at different rates and compare them all on the Amiga side.  You'll need to tweak the samples pitch to get it to fit and obviously split drum loops into 4 or 8 parts.  One will jump out as fitting into place.  Somtimes I use parts of a loop at different sample rates just because a snare snap sound good at one rate but the first half lacks... you get some bonus texture in there too.

I move any samples I want on an Amiga into a MODPlug session (using the Amiga MOD 4 channel preset) with resampling set to lowest quality possible (in the settings) and do most of my programming and sequencing in there.  I usually take it over to the Amiga to finish, mix and add / replace some samples before saving master MOD files.

So, in answer to getting stuff from PC to Amiga, going from MODPlug, saving as a "compatible" MOD, then taking it to an Amiga is the easiest way.  On that note, the Compact Flash kit is great if floppies are starting to get annoying.  Although I never will get sick of pressing C= + E, MOUNT PC0:

Three rules I always am thinking about:

1) You can't play over A# up from where C sits at 16726hz.  B will be a little out of tune and have odd effects.

2) Samples should be under 32kb.  In Cool Edit or Audition set view mode as being samples (still work in 16bit at this point)

3) You can always use the Axx command to create an envelope, eg. A08 if you want to envelope a sample if it's over compressed or you want staccato notes.

have fun!

/hijack

I've NEVER been able to get cha_filter to work. Never ever. It's located in the ram disk with cha_stanley, but nothing happens whenever I try to call it via the shortcut panel. When I double-click with OSS running I get the "Usage Error" message.

When and how do you call cha_filter to get it to work? I've looked for an answer for almost 10 years believe it or not. Those yahoo groups were useless.

a few that i think are great:

this filter plugin is absolutely sick- instead of just GUESSING the resonance in the filter you can choose from lowpass, bandpass, highpass, and modify each as you want.       http://uk.aminet.net/mus/edit/cha_filter.readme

i use this to cut up long samples when im making house- one you mentioned    http://uk.aminet.net/mus/edit/cha_stanley.readme

also useful for correcting the tempo of said loops http://fi.aminet.net/mus/edit/cha_autotempo.readme

I wouldn't say it's that misleading Along with the built in reverb etc theres plenty you can do with a boring loop.
I just think it's sad that people stick to protracker/soundtracker when they make amiga music.
now all I want is some sort of phaser or flange, that would be awesome!