Okay a few questions from a new Roland Juno G owner

13 Feb 2010, 20:01

Okay I pretty much got this keyboard down here are some issues I am having:

1) I don't have the 512mb of ram yet but when I make something with the sequencer and send it over to the audio track to do mix down, then audio > to write to save the sample.
Then transfer it over usb it plays for the first 2-3 seconds then just goes completely distorted.

2) Second issue is I am only able to save 10 seconds max with the default keyboard nothing added on, is this just something I'm doing wrong is there a way to save more then 10 seconds, I don't need amazing audio quality right now so is there away to turn it down to get longer recordings.

3) Is it possible to use a 4gb compact flash card in the roland juno g as I purchased one dont have a reader yet so not able to try.

Those are my main concerns everything else is working good just want to export some stuff I'm making, I made something 1 minute long but I can only save like i said about 9 - 10 seconds before it says sample memory full..... but it said I only used 2 .9 megs of the 14megs on the internal memory so that makes no sense to me........... blargh

Re: Okay a few questions from a new Roland Juno G owner

13 Feb 2010, 20:38

2) Unaltered, the keyboard has 4MB of RAM. 4*1024*1024=4194304 bytes. The sampling rate of the keyboard is 44110 Hz. The bit depth for each sample is 16 bits, or 2 bytes. So, without adding additional memory, the Juno-G can store (4194304/44110)/2=47.5 seconds of mono audio. Divide by two and you get 23.7 seconds of stereo audio. If there are any samples loaded into memory already, they reduce the amount of audio you can record (or mixdown) accordingly. Since you're only able to mixdown 10 seconds of audio, this suggests that you have samples resident in memory. There's a system setting you can change to prevent the Juno-G from automatically loading samples into RAM on startup.

Re: Okay a few questions from a new Roland Juno G owner

13 Feb 2010, 20:57

I figured out my distortion problem as well it was because i had a line in from my computer when i was recording and that caused some issues.

I switched to mono it sounds really bad but its a bit longer, why would roland make a keyboard that cant store anything for longer then 20 seconds without upgrades?

I have been trying to figure out how to transfer music like streaming over usb to audacity or something to record anyone ever do that?

I got it working good as a midi controller with synthesia and fl studio

Re: Okay a few questions from a new Roland Juno G owner

13 Feb 2010, 23:27

Last question I did some test I can use my juno to record through the out puts L and R but it sounds really really bad, I want to record through usb if thats at all possible I have sound forge that reconizes the juno g as a midi device or I can try it in FL Studio but I'm having now luck trying everything to see if it can go through usb to record it would make sense that it could...

Re: Okay a few questions from a new Roland Juno G owner

14 Feb 2010, 01:54

The Juno-G USB modes are only for sequencing MIDI and transferring files. The Fantom-G, SH-201, and Sonic Cell do have USB-Audio interfaces, but not the Juno.

The best way for you to record into your DAW will be to purchase a true audio interface(soundcard).

As for memory issues, it shouldn't be such a problem to upgrade. You can max the RAM at 512mb and CF Card/PCMCIA adapter at 1Gb for about $30. Will your existing 4gb work? Maybe - but should be formatted on the Juno.

On that note, think of it this way, if Roland put all the memory in when they mfg'd the board, they would have to add that to the original cost. As it is, you get to upgrade at hefty discount of memory chips today.

Re: Okay a few questions from a new Roland Juno G owner

14 Feb 2010, 18:56

my 512mb cost me 59$ with tax

Re: Okay a few questions from a new Roland Juno G owner

15 Feb 2010, 11:59

I don't know the exact reasons why they wouldn't include memory but here's a few reasons:

1. It gives the end user a choice of memory. Kingston, Corsair, etc.. You get to pick your favorite.

2. You can pick how much you want: 512, 256, etc.. depending on your budget.

3. Again money wise: you might already own some memory (as was my case) so I didn't have to pay money for any included over-priced memory. Adding memory to all the keyboards would jack up the price.

4. Not everyone is going to be using the Juno-G for recording. Some people might just need a live keyboard so memory isn't even needed.

5. Adding memory to all the keyboards means every keyboard they make would be sitting in a warehouse at some point. If they don't sell all of them there's a chance that a lot of them could become corrupt (bad memory?)

6. You get to pick where you buy the memory from.

Anyways... just a thought. I really don't know the actual reason but I like it because I had memory already and got a free card reader too.. so I saved money on the deal.

Re: Okay a few questions from a new Roland Juno G owner

15 Feb 2010, 18:08

lawndart: you mean 44100 i think not 44110.

Re: Okay a few questions from a new Roland Juno G owner

15 Feb 2010, 19:23

jpq - You're right. It is 44100. I was basing my calculations on what you actually get when you step record a whole note (gated at 100%) at 120 bpm and then mixdown. The sampling screen says you have 88220 samples, but this is because the Juno-G inserts silence at the beginning and sets the starting point to sample 20. This is probably done because of the way the digital filtering works. Mathematically, filtering is accomplished by convolution of the signal with the filter function and you need a sliding window of finite width to do this. You want filtering to start at the beginning of the audio sample, so you need to insert some silence so you can perform the computation.

Re: Okay a few questions from a new Roland Juno G owner

15 Feb 2010, 19:36

I must learn more about DSP if i have time. But now going look more xcode stuff.