Computer Audio Asylum

cPlay resample settings

69.144.137.194

orediger

A

In Reply to: RE: cPlay - the open source high-end audio player using ASIO posted by cics on May 05, 2008 at 12:31:58

I have the JW XP setup and with 44.1 to 44.1 playback I find that the resample settings in cPlay make a big impact to the SQ. Apparently the DSP is still processing the playback even though the sample rate is not being changed. I thought this would be bypassed. Is there a way to set up cPlay so that the DSP is not processing the file or is this just part of the way cPlay works?

Follow Ups:

RE: cPlay resample settings - play-mate 00:39:23 05/25/12 (1)
Hey orediger,

What is your concern actually ?

Popular said, the DSP is the software engine that turns the file into buffer packages to be sent to the ASIO device (juli@). This cannot be circumvented, and DSP is in essence tha core of any playback software.
The preparation/processing that cPlay also performs, is the loading of the file into RAM....is this what you mean by "processing" ?

You must understand that a ASIO memoryplayer like cPlay, is NOT just streaming samples away in a continous flow, but rather transfering packets of data (buffers) to the juli@, for further "assembly" into a time critical signal flow.

When not upsampling, cPlay does not alter the data. In this case the unique upsampling technique of cPlay is circumvented.

Does this clear your question ?

kind regards
cMP2 Computer w/digital crossovers & FIR filters > Lynx Aurora 8 FireWire /192kHz all channels. 2x AcousticReality Ref. 202 & 2x AcousticReality Ref. 601�s ICEpower. Magnepan MG3.3R beechwood frames & custom stands. Miller chokes
- RE: cPlay resample settings - orediger 18:15:36 05/26/12 (0)
  Thanks for the reply, that does clear things up. I also went back and reread the CMP2 homepage discussion which explains the settings in detail. I still hear a difference in the sound with changes in the SRC/SOX settings even though I'm not upsampling, subtle though.

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