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More => Old Versions => Media Center 11 (Development Ended) => Topic started by: Govner on August 29, 2003, 09:00:39 pm

Title: ASIO and Audigy2 Help
Post by: Govner on August 29, 2003, 09:00:39 pm
Just purchased an Audigy2 and can not play an MP3 w/ ASIO selected. This is the error that I am getting when attemptin to use ASIO and the Audigy2, "The ASIO device 'Creative ASIO' Doest not support the sample rate of 44100Hz." Is this possible or am I doing something wrong?


TIA
Title: Re: ASIO and Audigy2 Help
Post by: Omni on August 29, 2003, 09:34:57 pm
You have to upsample the signal to 48 kHz -- Audigy's minimum sampling rate.

In DSP Studio, check Output Format and set Sample Rate to 48 kHz.

With an Audigy, though, there is really no point to using ASIO for simple playback.

Omni
Title: Re: ASIO and Audigy2 Help
Post by: breadfan on August 29, 2003, 09:58:52 pm
you said there isn't a point to using asio with an audigy.

why is that?
Title: Re: ASIO and Audigy2 Help
Post by: Omni on August 30, 2003, 11:52:21 am
The real point of ASIO is to allow for direct access to the hardware.  The main reasons that is desirable are 1.)  reduced latency, and 2.) to bypass Windows' kmixer which purportedly upsamples everything to 48 kHz which means that even though you think you are listening to a CD as mastered (@ 44.1 kHz), you're not.

Latency:  The primary need to reduce latency applies only to MIDI applications.

kmixer:  All Creative cards use a DAC which only accepts digital input sampled at 48 kHz.  So whether Windows upsamples the 44.1 kHz stream or your Audigy drivers do, it's all the same.   (I would defy anyone to ABX a kmixer stream and Audigy driver stream and be able to tell the difference.)

Omni