Support and General Use > Audio Playback, Database and Playlists
Iriver h140 pitch at 105 freezes
Rincewind:
It looks like a sample-rate problem to me. Are you having the same problems if you turn optical out off?
spazz:
That's realy weird. Ijust unpluged my headphones from my headroom MicroStack(dac and amp) and plug them in my iriver remote and my sound was ok. I went back and forth from my iriver remote to my micro stack and I could see a difference. without switching the the optical out on our of. Once, I repluged my cans to my stack everything sounded perfect...weird
Now, the big problem is that after unpluging and repluging my headpones the sound came back to it's original bad state whatever source(iriver remote\micro stack) I also tryed to turn my optical out of but nothing changed. I swear I took no drugs ???
Rincewind, if it is a sample-rate problem, is there anyway to arrange it in on my side in Rockbox?
Rincewind:
--- Quote from: spazz on November 13, 2006, 09:36:50 AM ---That's realy weird. Ijust unpluged my headphones from my headroom MicroStack(dac and amp) and plug them in my iriver remote and my sound was ok. I went back and forth from my iriver remote to my micro stack and I could see a difference. without switching the the optical out on our of. Once, I repluged my cans to my stack everything sounded perfect...weird
Now, the big problem is that after unpluging and repluging my headpones the sound came back to it's original bad state whatever source(iriver remote\micro stack) I also tryed to turn my optical out of but nothing changed. I swear I took no drugs ???
Rincewind, if it is a sample-rate problem, is there anyway to arrange it in on my side in Rockbox?
--- End quote ---
I don't think I fully understand what your setup is. If you are using the digital out to an amp and then your phones, then it could be a problem that aac is decoded at 48khz but the optical out sends it with 44.1khz and eventually there is such a huge difference between the codec and the audio buffer that rockbox crashes. There was a big update about sample rates during recording, maybe this broke something. But I'm only guessing, I don't know the rockbox audio code.
If your aac files are encoded with 48khz then this can be the problem and you can change it by reencoding with the (standard) 44.1khz.
spazz:
My aac were all imported from itune and my settings are:
Stereo Bit Rate: 224kbps
Sample Rate:48kHz
Channels: Stereo
Optimized For MMX/SSE2
My hardware is a Iriver h140(upgraded to h180) optical out to a headroom micro dac that is pluged to a headroom micro amp that is feeding my headphones.
Reencoding to 44.1kHz all my aac songs will be a real pain in the b :( If I had only known when I imported all my cds...
Any chance that Rockbox will support 48kHz in future builds?
Llorean:
CDs aren't even recorded at 48khz. They're 44.1. So importing them at 48khz is a mistake in the first place.
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