Any news of the nDac software update?

Just use a USB key onto which you have copied the unzipped files, then plug into front socket.

You need USB-stick with the firmware files on it. There's instructions included when you download the firmware from Naim website. 

I think that both Naim DACs use DoP.

DoP works with USB 2.0 and later, as well as Firewire, AES/EBU, S/PDIF and other PCM transfer methods.

I thought so Andrew, you'd have been in trouble otherwise! 

I laugh in the face of trouble

Downloaded and installed.  A nice simple process. Only playing it a few min and on a unfamiliar music but I do think the new software is an improvement.  

Delihgted to have this before Christmas ��

Yes. Defiantly a different sound siginiture. Leaner, chrisper, tighter all around.  The base has less of an over full sound. Near to the presentation of the NDX but with more definition. 

Paul

Jude2012 posted:

Originally Posted by garyi:

I thought DSD need async USB to be of any worth, am I being dim here? Surely if its being converted to optical or what ever its no longer DSD?

 

 

I think that both Naim DACs use DoP.

 

DoP works with USB 2.0 and later, as well as Firewire, AES/EBU, S/PDIF and other PCM transfer methods.

OK, so in order to hear a DSD file on a nDac you have to copy the files onto a USB stick? According to the internet DSD can not transfer through cable due to bandwidth. I am not sure if this is correct?

I cannot see how DSD could be delivered any other way, can an HDX for instance deliver DSD files to a streamer or DAC?

I believe that DoP can be sent over coaxial s/pdif, however your transport or USB-s/pdif convertor will need to support this.  I think that most XMOS devices can handle this with the appropriate driver.

garyi posted:

Jude2012 posted:

Originally Posted by garyi:

I thought DSD need async USB to be of any worth, am I being dim here? Surely if its being converted to optical or what ever its no longer DSD?

 

 

I think that both Naim DACs use DoP.

 

DoP works with USB 2.0 and later, as well as Firewire, AES/EBU, S/PDIF and other PCM transfer methods.

OK, so in order to hear a DSD file on a nDac you have to copy the files onto a USB stick? According to the internet DSD can not transfer through cable due to bandwidth. I am not sure if this is correct?

I cannot see how DSD could be delivered any other way, can an HDX for instance deliver DSD files to a streamer or DAC?

 

Gary,

I'm assuming the reference to using a USB stick relates to the process of updating the firmware rather than playback of DSD files. The streamers play DSD files via ethernet cable without any bandwidth issue so I'm sure that this should not be a limitation with S/PDIF etc. DSD64 consists of 2 channels of single bit data sampled at 2,822.4 KHz i.e  5.645 Mb/sec which is less than the bitrate for 24 bit 192kHz PCM. DSD128 will be double that.

OK, but according to the internet, which must make it true, native DSD files are huge bandwidth. So in reality what exactly is a DSD file that is not from an orginal SACD?

The little Korg DSD recorder can generate native DSD files, so the notion that a DSD file correlates with a disc-based release is questionable. The same, clearly, applies to uncompressed WAV or FLAC files.

Again an assumption but surely any digital audio format must involve a sampling process which is where it differs from analog. My understanding is that DSD uses single bit samples but at a vastly greater sampling frequency. I won't pretend to totally understand how Delta Sigma ADCs work but I guess they can convert the analog signal at various sample rates which determines the format e.g. 5.645Mb/s i.e. DSD64 for stereo SACD and higher sample rates for DSD128 and DSD256.

I've obviously confused sampling frequency with bitrate in my previous post. The sampling frequency for DSD64 (i.e. SACD format)
should have been 2,822.4 kHz and DSD128 would be 5,644.8 kHz and so on.