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[vinodkumar]

Hello,

Recently acquired Merging's Hapi unit with premium cards. I'm in the process of evaluating JRiver (tried MC20 and currently using MC 19) to play DSD files on Windows 7. I have the following setup :

1. Selected Tools -> Options -> Audio Device -> Merging Ravenna driver (ASIO)
2. Enabled Tools -> Options -> Audio Device -> Bit Streaming (DSD)
3. Selected Tools -> Options -> Audio Device -> DSP&output format (DSP Studio) -> Output Encoding -> 1XDSD in native format...
3. Merging Hapi is set to DSD-64
4. The .dff files that I am playing are in 2.88 mhz (DSD-64) format

I get some strange noise from the speakers and the song counter at the top increments only after 3 seconds. Wondering if someone can help me to debug this issue?

TIA

Vinod

[Matt]

What happens if you turn off bitstreaming (#2 above)?

[vinodkumar]

Hi Matt,

Thanks for the quick response. I realized that I misspoke in my previous post. The scenario is in the previous setup, the "2. Enabled Tools -> Options -> Audio Device -> Bit Streaming" is set to NONE. But, when I enable "2. Enabled Tools -> Options -> Audio Device -> Bit Streaming (DSD)", I get  STATIC NOISE and music playing faintly in the background.

Vinod

[Matt]

That's really weird because we're delivering the DSD exactly as-is when bitstreaming.  If that doesn't play, it almost seems like a DAC issue.

[vinodkumar]

The DAC is capable of DSD-256 and is using Ravenna to communicate to Windows 7.

[vinodkumar]

It plays PCM properly though. Wondering if I'm missing any steps in my setup?

[dallasjustice]

It plays PCM properly though. Wondering if I'm missing any steps in my setup?

According to the following on page 5, the Ravenna ASIO doesn't handle anything more than 192khz.
http://www.merging.com/uploads/assets/Merging_pdfs/Pyramix_8/Merging_Ravenna_ASIO_and_CoreAudio_Guide.pdf