Strange silience after connecting to AUGraphicEQ
Strange silience after connecting to AUGraphicEQ
- Subject: Strange silience after connecting to AUGraphicEQ
- From: "Lukhnos D. Liu" <email@hidden>
- Date: Tue, 26 Aug 2008 06:12:40 +0800
Hi,
I'm new to CoreAudio. Lately I have successfully made everything work:
audio converter in place, default output unit created, and buffer
rendered, sound played, everything in order.
Then I would like to have equalizer in the picture, now here's the two
problems I encountered:
1. I can't set stream format property of the created graphic EQ unit
(returns -10868 -- invalid format)
2. I have set up a generic output unit in a subgraph, chained the
subgraph node to the default output unit node--works fine. But then
when I connect the subgraph node to the EQ node, then EQ node to
default output unit node, there's nothing but silent. I'm totally
clueless on why this is so.
The sample rate is 44.1 KHz, 2 channels. I have tried both 16 bits and
32 bits per channel, float or signed integer. Nothing seemed to work.
I must have terribly missed some important thing here, but I can't
figure it out.
Any help is greatly appreciated. Thank you!
d.
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