ptitSeb
Serial Porter
Later GCC can then be buit easily from there. It's just, the glibc used on the Pandora doesn't like to modern gcc version, that's why I stick with 4.93 there.
8bitbubsy
Still Fresh
Apparently the CPU in the Pandora doesn't have a div instruction?! So much for that, nothing I can do.
ptitSeb
Serial Porter
No interger div if I remember correctly yes. But there should be float and double division with vfpv3
levi
Still fresh, damnit!
The integer based ARM core doesn't as far as I can find, but the A8 includes a floating point chip giving you FDIV/VDIV instructions at the very least. Takes some 30 or so cycles apparently, so isn't blazing fast, but is probably faster than any iterative approach.
Edit: More or less ninja'ed by ptitSeb
Edit: More or less ninja'ed by ptitSeb
Ok what a hell of week i had...my internet connection goes mad for all the week and plus i had a week uber full at work...
Anyway here is the recorded song (directly from the Fasttracker clone on the pandora with the option in diskop menu -> record to .wav and is the release 132 with -DLERPMIX )
https://www.dropbox.com/s/xdfswplpcn3k7wg/Homecoming_pand_132.7z?dl=0
the song is called Homecoming.XM and is available here
For me is a bit metallic the song in some part...but maybe is my ears, and with previous version was a bit better...i need to know your opinions about it.
Thanks for try and reply, i was looking at the code and noted that the source of version 132 did not have a reference of LERPMIX in code...odd, maybe the author did some mistake with this version..i'll retry with a more recent release.
Sorry, I couldnt be bothered to create a dropbox account again.
But could you tell me what I could do, for example, use a classic FT2 and export the wav and use the pandora (with latest FT2 port) and export the wav, then visualize it side by side in Audacity where you can import both wavs as stereo tracks?
Something like this:
Maybe you could do it...but i was requesting something more simple....just listen (with earphones attached to Pandora) the song that i linked , first with the release 130 (the last on the repo) and then with the release 131 that i shared some messages ago.
This just to prove that isn't my only impressions (of my ears) that is sound a bit better with version 130.
This just to prove that isn't my only impressions (of my ears) that is sound a bit better with version 130.
Eight Bit
Hardcore Member
Audio memory is about 10 seconds so you need to play both files at the same time and switch between them to hear the difference.
I doubt the Spectrum view in Audacity will be of much use with subtle differences like a slightly more metallic sound. It would have to be very obvious to see that in such a graph.
It could also be a slightly different EQ setting between versions of fasttracker. Is there an EQ in there? If not, maybe it's hard coded and can be looked up in the source?
You could check that my way too, which involves a white noise and a 32 band spectrum analizer with hold function.
I doubt the Spectrum view in Audacity will be of much use with subtle differences like a slightly more metallic sound. It would have to be very obvious to see that in such a graph.
It could also be a slightly different EQ setting between versions of fasttracker. Is there an EQ in there? If not, maybe it's hard coded and can be looked up in the source?
You could check that my way too, which involves a white noise and a 32 band spectrum analizer with hold function.
Found a very good free-sample site you can use with FT2: https://freewavesamples.com
I noticed FT2 clone came out of beta, now stable version 1.01.
Maybe worth rebuilding now
Maybe worth rebuilding now
16-bits.org - home of 8bitbubsy
Homepage of 8bitbubsy. ProTracker 2 clone, Fasttracker II clone, source codes and so on...
16-bits.org
Ok just uploaded the new PND of version 1.01.
This time i didn't used any Pandora options on compile, as it seems (to me) that is sound more sharp without Neon or -DLERPMIX...but maybe it's only my impressions.
I compiled with:
please test it and report your impressions (but please use some earphone to test), if someone want to test i have build also the pnd using classic CortexA8+Neon options and another one with old mixing routines (using -DLERPMIX).
This time i didn't used any Pandora options on compile, as it seems (to me) that is sound more sharp without Neon or -DLERPMIX...but maybe it's only my impressions.
I compiled with:
please test it and report your impressions (but please use some earphone to test), if someone want to test i have build also the pnd using classic CortexA8+Neon options and another one with old mixing routines (using -DLERPMIX).
Diff between FT2clone_101.pnd and FT2clone_b6.pnd with the song "Space Debris"
Method used:
help from: https://manual.audacityteam.org/man/spectrogram_view.html
So it bleeds a bit in the high and mid frequencies, but not that much in the bass frequencies.
The song sound normal but very faint and after normalizing it sounds like with a high-pass filter. And some sounds are dimmed.
Will give an update later after listening to the wav's one by one (with that suggested 15 second interval)
Method used:
- Use pnd_run to explicitly select the pnd to run
- Use the save WAV file inside each FT2 to save the mod to wave. (101 too a LOT more time to convert, but maybe it was because of the SD cards, I have one pnd on each)
- Load both stereo wav files into Audacity
- Select only one of the stereo tracks and use the effect "invert" (which flips the sound horizontally)
- Listen to the result. If wav's are identical, there should be silence
- Merge both tracks (mix and render to new track)
- Show a spectrogram for visual inspection
- post images to the forums
- Go to the supermarket because you are hungry and did this before house duty stuff (hang clothes, wash dishes, etc).
help from: https://manual.audacityteam.org/man/spectrogram_view.html
So it bleeds a bit in the high and mid frequencies, but not that much in the bass frequencies.
The song sound normal but very faint and after normalizing it sounds like with a high-pass filter. And some sounds are dimmed.
Will give an update later after listening to the wav's one by one (with that suggested 15 second interval)
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Thanks for the spectrogram...but i don't know if comparing a .mod converted to wav is the correct way to test, as the sound pass thru a conversion routine.
If you have an earphone try to listen the same song (preferably one with many voices active, like some XM modules as i think with mod files there's no noticeable differences) and compare the previous release with the current.
If you have an earphone try to listen the same song (preferably one with many voices active, like some XM modules as i think with mod files there's no noticeable differences) and compare the previous release with the current.
