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 Post subject: Re: Hacking the 404SX
PostPosted: Tue Nov 15, 2011 11:00 am 
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http://labs.rumori.hu/bankrobber/ is back online :D
Keep up the good work!

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 Post subject: Re: Hacking the 404SX
PostPosted: Fri Nov 18, 2011 4:13 pm 
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any one able to hack the machine language to mess with the OS ?

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 Post subject: Re: Hacking the 404SX
PostPosted: Sun Jan 22, 2012 10:56 pm 
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Is this project dead in the water? I wanna see this work with the OG 404


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 Post subject: Re: Hacking the 404SX
PostPosted: Sun Jan 22, 2012 11:38 pm 
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andrewhayter wrote:
Is this project dead in the water? I wanna see this work with the OG 404


I'm using the current version. And to be honest, it converts files that the Roland converter rejects, so I'm still loving it.

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 Post subject: Re: Hacking the 404SX
PostPosted: Fri Aug 17, 2012 2:45 am 
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I have the sp-505, and I have been investigating the "sp0" files. I used a command-line program I downloaded called "rdac2wav", and on it's "MT2" setting I can partially convert the .sp0 files to 16/44100 .wav files. By "partially", I mean that the sample can be heard, but it is interspersed with digital noise. I thought this might be somewhat helpful for those trying to decode the sp(202,303, og 404,505, possibly 808) sample format. I have attached both the open-source program by Randy Gordon, and an example sample of a snare+cymbal hit.


Attachments:
File comment: Randy Gordon's program
rdac2wav.zip [59.73 KiB]
Downloaded 200 times
File comment: Test recovered wav
test.wav [106.67 KiB]
Downloaded 126 times
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 Post subject: Re: Hacking the 404SX
PostPosted: Mon Oct 22, 2012 8:35 pm 
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Location: Missoula,MT
Is there anyway to take the samples of my 404sx and load them directly to my computer?


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 Post subject: Re: Hacking the 404SX
PostPosted: Wed Oct 24, 2012 9:41 pm 
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fresh-produce wrote:
Is there anyway to take the samples of my 404sx and load them directly to my computer?


w/ a card reader. cost you less then ten bucks if you dont have one.


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 Post subject: Re: Hacking the 404SX
PostPosted: Fri Nov 09, 2012 11:35 pm 
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Location: France-Italy
ailahusky wrote:
I have the sp-505, and I have been investigating the "sp0" files. I used a command-line program I downloaded called "rdac2wav", and on it's "MT2" setting I can partially convert the .sp0 files to 16/44100 .wav files. By "partially", I mean that the sample can be heard, but it is interspersed with digital noise. I thought this might be somewhat helpful for those trying to decode the sp(202,303, og 404,505, possibly 808) sample format. I have attached both the open-source program by Randy Gordon, and an example sample of a snare+cymbal hit.


OT
Man please make a thread on the sp505 section, this seems very interesting!!

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 Post subject: Re: Hacking the 404SX
PostPosted: Sat Nov 10, 2012 6:28 am 
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ailahusky wrote:
I have the sp-505, and I have been investigating the "sp0" files. I used a command-line program I downloaded called "rdac2wav", and on it's "MT2" setting I can partially convert the .sp0 files to 16/44100 .wav files. By "partially", I mean that the sample can be heard, but it is interspersed with digital noise. I thought this might be somewhat helpful for those trying to decode the sp(202,303, og 404,505, possibly 808) sample format. I have attached both the open-source program by Randy Gordon, and an example sample of a snare+cymbal hit.


wondering if the wav you attached is the actual raw converted data or a recorded sample. this might help someone solve your problem.

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 Post subject: Re: Hacking the 404SX
PostPosted: Sat Aug 17, 2013 12:05 pm 
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Location: Los Angeles
this project seems dead, yes? a shame he did SUCH a great job on it!

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SP-202, SP-404SX (main one I use), SP-505, SP-555, ES-1, ESX-1, RS7000, etc.


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 Post subject: Re: Hacking the 404SX
PostPosted: Fri Oct 04, 2013 9:11 pm 
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Joined: Wed Jan 26, 2011 7:53 pm
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I'm back and have some updates cooking.
Please follow on Twitter for the latest news.

:arrow: https://twitter.com/bankrobberapp

Peace


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 Post subject: Re: Hacking the 404SX
PostPosted: Sat Oct 05, 2013 5:55 am 
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NICE!!
:)

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SP-202, SP-404SX (main one I use), SP-505, SP-555, ES-1, ESX-1, RS7000, etc.


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 Post subject: Re: Hacking the 404SX
PostPosted: Sat Oct 05, 2013 1:04 pm 
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Really stoked about this !!

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 Post subject: Re: Hacking the 404SX
PostPosted: Sun Oct 06, 2013 3:10 pm 
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Going to read all this thread later. Maybe I can be of some help. I'm a C and C++ software developer. Very interesting thread though. I tried to hack the Jazzmutant Lemur firmware, but was very difficult.


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 Post subject: Click noise when double-triggering the same sample
PostPosted: Sun Dec 14, 2014 7:18 am 
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I work on an MS-Excel tool that helps you to write/edit pattern: See SheetMusic2Pattern in this forum or Roland SP-404SX on my website.

Now I have identified an issue when double-triggering the same sample at different velocity values in a short sequence. I hear a click noise when the second trigger (at lower velocity) is played. I assume that this happens if the double-trigger sequence is shorter than the sample/wav length.

Example: Play 1/16 notes on a surdo. The complete surdo sample/wav takes 1.5 seconds to complete. The second note is triggered after 0.2 seconds at a lower velocity.
Code:
____########_____ Surdo sample takes 1.5 seconds (here: 8 character)
    ^             Surdo sample triggered the first time at full volume
____##........___ Surdo sample triggered a second time at a lower volume
      ^           Click noise when SP is switching to lower velocity value

The SP pattern file looks like:
Code:
18 80 00 00 00 00 00 00
30 61 00 00 64 00 00 01
18 61 00 00 64 00 00 01
48 61 00 00 19 00 00 01  * click...
18 61 00 00 64 00 00 01
48 61 00 00 19 00 00 01  * click...
18 61 00 00 64 00 00 01
18 61 00 00 19 00 00 01
...

The meaning of each row of a SP pattern file:
Code:
18 61 00 00 19 00 00 01
|  |  |  |  |  |  |--|
|  |  |  |  |  |  Length (Ticks, 2 Bytes)
|  |  |  |  |  unknown
|  |  |  |  Velocity (0 - 127)
|  |  |  unknown
|  |  Channel Offset (00=ABCDE, 01=FGHIJ)
|  Pad (MIDI-Note, 47-106)
Interval (Ticks)

Is there a way to trigger the same pad two or more times in a kind of polyphony or do I have to copy the sample to another pad and trigger this one?


Last edited by denken24 on Wed May 20, 2015 9:12 pm, edited 1 time in total.

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