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RE: Bits and digital attenuation

Posted by shane. (A) on July 22, 2014 at 20:02:32

In Reply to: RE: Bits and digital attenuation posted by Tony Lauck on July 22, 2014 at 18:33:08:

Thanks for the reply Tony.

The DAC chip wont accept 32bits, this much I know.

Audirvana says 'WAVE 16/44.1kHz : DAC32/176.4kHz'. I cant seem to change that.. I should say that the software actually see's a 32Bit 384kHz capable device in Lucians WaveIO.

This feeds Ians FIFO then ISO and Dual Reclock boards into his I2S to PCM board which allows simultaneous mode operation of tda1541A in NOS at 176.4kHz, upsampling using the Audirvana algorithm.

So, I'm assuming that the file is output from the software at 16bit with another 16 positions held at zero for 32, which is passed through the chain to the DAC chip with discards the 16 zero's and playsback the 16bit file.

If that is correct, is it still the case that you would suggest not to use digital attenuation?. Maybe, in other words.. would the attenuation affect the 16 zero's first - or is that irrelevant?.

As for subjective preferences, theres already so much mentioned about this elsewhere that its pointless to question or even comment about it if one is to remain without agenda and for the most part ego.

Sincerely,
Shane

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