Hi
I have some strange issue I don't really know how and why it happens.
I am testing different speakers at the moment and playing the same ~10min .flac audio with every speaker I got and record that with my mic to compare them.
Now I noticed that after exactly matching the waveforms of the recorded audios at the beginning, they won't end at the exact same time after, so some tracks basically gets some ms delay over the time of 10min.
first pic shows matched waveforms at the beginning of the tracks. second pic how they end up after ~10min.
I also used a Sony camera to record a video showing the speakers playing the music and the exact same issue can be heard there too. Matching audio-track at the beginning but at the end of the track they don't match anymore.
My computer is pretty good and I am only using professional hard and software.
AMD Ryzen 5950x, 64GB RAM, RTX 3080, RME Fireface UC ... I've used VLC player to play the .flac file.
Does anyone have a clue how this can happen? Is it normal or should I check if there is something wrong?
Thanks!
Same recorded audio -> different lengths
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thecontrolcentre thecontrolcentre https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=76240 - KVRAF
- 37262 posts since 27 Jul, 2005 from Scottish Borders
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- KVRist
- Topic Starter
- 175 posts since 23 Jan, 2015
I am using Bitwig Studio and no, format is RAW, no time-stretching.
As said also when filming with the camera the audios from the videos are not the exact same length. (I checked lengths in my DAW and also in Davinci Resolve)
..so it seems that playing audio on my computer isn't always 100% the same speed.
As said also when filming with the camera the audios from the videos are not the exact same length. (I checked lengths in my DAW and also in Davinci Resolve)
..so it seems that playing audio on my computer isn't always 100% the same speed.
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- KVRAF
- 5379 posts since 22 Jul, 2006 from Tasmania, Australia
in the host devs often use ppq to compensate for any error,
but that is for sequencing inclusively, a stem could call it if needed
sounds a bit like the samplerate clocks aren't synced
but that is for sequencing inclusively, a stem could call it if needed
sounds a bit like the samplerate clocks aren't synced
I wonder what I want in here
-my site is gone and music a mess
-my site is gone and music a mess
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- KVRist
- Topic Starter
- 175 posts since 23 Jan, 2015
thanks for your answer. I have played the .flac file with the VLC player. everything is set up @48kHz and I never changed anything between recording the music.
I really don't understand how the exact same track played with VLC player can result in different lenghts.
I really don't understand how the exact same track played with VLC player can result in different lenghts.