XXHighEnd

Ultimate Audio Playback => XXHighEnd Support => Topic started by: Shreekant Somany on April 05, 2017, 05:31:06 pm



Title: copying files from a pendrive
Post by: Shreekant Somany on April 05, 2017, 05:31:06 pm
Hi,
I copied a wav file from a pen drive directly into a music folder and when I played it through xxh it was playing at perhaps double the speed of the track.
I even decoded it through a software and saved it to the folder but the result was the same.
Can anybody reason this?
shreekant   


Title: Re: copying files from a pendrive
Post by: PeterSt on April 05, 2017, 06:02:57 pm
Hi Shreekant,

Normally I would have had no clue, but since only recently someone had a similar problem with the cause it being mono which XXHighEnd does not support ... that is now my hint.

XXHighEnd can play Mono of course, but one "1 channel" as such.
Assumed this is the culprit indeed, try to find a software which can duplicate that 1 channel to 2 the same. Now XXHighEnd will play it as stereo, but of course with the same music from both channels.

Does this help ?
Kind regards,
Peter


Title: Re: copying files from a pendrive
Post by: Shreekant Somany on April 07, 2017, 02:55:34 pm
Hi Peter,
I converted the mono recording to stereo and the problem was solved. However I still cant understand why a mono recording should play at double the speed.
There were two identical recordings from two mixers L & R and both were mono, even when I mixed the two to render one new track it did not work, but after converting them to stereo with Audacity software it worked.   
shreekant


Title: Re: copying files from a pendrive
Post by: zackthedog on April 08, 2017, 12:30:44 am
Hi Peter,
I converted the mono recording to stereo and the problem was solved. However I still cant understand why a mono recording should play at double the speed.
There were two identical recordings from two mixers L & R and both were mono, even when I mixed the two to render one new track it did not work, but after converting them to stereo with Audacity software it worked.   
shreekant

I had the same problem, and it's still a mystery, but I see you solved it.  dbPoweramp has a DSP plugin that will convert mono to two-channel.  I have a lot of shared LP and 78rpm rips that were done in mono and regularly need to convert them. :-)


Title: Re: copying files from a pendrive
Post by: PeterSt on April 08, 2017, 10:03:29 am
The problem occurs because technically there is one channel only. And when the software does not even anticipate this faulty situation (because it can not deal with it in the first place) then the one channel is spread over two channels anyway (the software just thinks it is two channels) and now from one sample to the other, per channel one is skipped (say that 100000 samples are now spread into 2x 50000). Best explanation would be to tell that the 100000 samples meant for 6 seconds now play in 3 seconds (because for two channels at the same time there's 50000 samples to play), now play in 3 seconds. And this makes the pitch twice as high.

:wacko:
Peter


Title: Re: copying files from a pendrive
Post by: zackthedog on April 09, 2017, 06:29:31 am
That makes sense.