Mackan
1st May 2013, 15:28
Hello,
I have a rather straightforward question, but that's been hard to find an answer to.
Does anyone know if there's a phase shift applied to the surround channels during the encoding process for multichannel DTS tracks that comes on blu-ray discs?
It's common to extract such tracks (for example as 5.1 DTS-Core) and re-encode to get an 5.1 AC3 or possibly an AAC stereo track as down mix, however, such processes may include further phase shifting on top of what may already be there on the original DTS track. This may cause a final audio track that just sounds wrong.
I've read indications that DTS may have 45 degree phase shift to surround channels, but cannot confirm. Does anyone know?
In general, is it possible to detect such phase shift in some waveform editor by checking frequencies or similar?
I have a rather straightforward question, but that's been hard to find an answer to.
Does anyone know if there's a phase shift applied to the surround channels during the encoding process for multichannel DTS tracks that comes on blu-ray discs?
It's common to extract such tracks (for example as 5.1 DTS-Core) and re-encode to get an 5.1 AC3 or possibly an AAC stereo track as down mix, however, such processes may include further phase shifting on top of what may already be there on the original DTS track. This may cause a final audio track that just sounds wrong.
I've read indications that DTS may have 45 degree phase shift to surround channels, but cannot confirm. Does anyone know?
In general, is it possible to detect such phase shift in some waveform editor by checking frequencies or similar?