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More => Old Versions => JRiver Media Center 29 for Windows => Topic started by: Sassi on May 11, 2022, 03:39:10 am

Title: Audio path delay
Post by: Sassi on May 11, 2022, 03:39:10 am

Hi, since I upgraded from MC26 to 29 there has been this "DELAY" section in my audio path. What is this? It is still bit-perfect I gather?
Is it something that has always been there but is now visible in the newer version. Here is a screenshot:

(https://i.imgur.com/JB7I3gf.png)

Title: Re: Audio path delay
Post by: Sassi on May 11, 2022, 08:42:25 am

It seems no delay from converter when playing an SACD. Is this all as it should be or do I have some additional processing enabled somewhere in settings?

(https://i.imgur.com/m9pc0eb.png)

Title: Re: Audio path delay
Post by: Matt on May 11, 2022, 09:05:13 am

Since you're bitstreaming there's no converter delay.

Title: Re: Audio path delay
Post by: kr4 on May 11, 2022, 11:18:34 am

Quote from: Matt on May 11, 2022, 09:05:13 am

Since you're bitstreaming there's no converter delay.

I see that but why is the total latency longer without the conversion?

Title: Re: Audio path delay
Post by: Hendrik on May 11, 2022, 11:24:45 am

The second latency value has no meaning unless you are trying to synchronize live playback. It includes hardware buffers and will depend both on device behavior and their drivers. It also varies during playback as the buffer gets played out and re-filled.

The first value is going to practically never be exactly zero (even in bitstreaming, we just can't measure it properly then), because a certain amount of data is going to be in-flight right now (eg. between file and output), but that measure has no impact on being bitexact or not, the only thing that counts is that it does not change on its way from the file to the output.