Re: GrahicEQ AU trouble
Re: GrahicEQ AU trouble
- Subject: Re: GrahicEQ AU trouble
- From: email@hidden
- Date: Thu, 23 Apr 2009 13:45:44 -0700 (PDT)
- Importance: Normal
> so, you have a converter, connects to bus 0 of the mixer, connects to
> your AU, connects too the EQ, connects to the output unit.
That's right.
>
> The graph's not running when you've printed this out (isRunning=F)
>
> should be ok from that point of view. if you take out the EQ and
> connect your AU to the output unit, it works?
Yes.
> if you take out your AU, and connect the mixer to the EQ to the output
> unit, it works?
Haven't tried that yet, though I have tried putting the EQ unit before my
unit.
>
> On Apr 23, 2009, at 11:15 AM, Darryl Trujillo wrote:
>
>> Here's what I get from CAShow() - looks to me like the connections
>> are okay, though it not immediately clear how to read the rest of it:
>>
>> AudioUnitGraph 0x818C14:
>> Member Nodes:
>> node 1: desc cfua vnoc lppa, instance 0x9e0000 O I
>> node 2: desc xmua rxms lppa, instance 0x9a0001 O I
>> node 3: desc xfua Vtmd Ptmd, instance 0x810002 O I
>> node 4: desc xfua qerg lppa, instance 0x810003 O I
>> node 5: desc uoua fed lppa, instance 0x810004 O I
>> Connections:
>> node 4 bus 0 => node 5 bus 0 [2 ch, 44100 Hz]
>> node 3 bus 0 => node 4 bus 0 [2 ch, 44100 Hz]
>> node 2 bus 0 => node 3 bus 0 [2 ch, 44100 Hz]
>> node 1 bus 0 => node 2 bus 0 [2 ch, 44100 Hz]
>> CurrentState:
>> mLastUpdateError=0, eventsToProcess=F, isRunning=F
>>
>> On Apr 23, 2009, at 11:11 AM, William Stewart wrote:
>>
>>> this should just work.
>>>
>>> If you do CAShow(myGraph), what does the graph look like? My guess
>>> is that you don't have it connected quite right
>>>
>>> On Apr 22, 2009, at 9:12 PM, Darryl Trujillo wrote:
>>>
>>>> Hi Folks,
>>>>
>>>> I'm doing playback through an AU graph consisting of a format
>>>> converter, stereo mixer, a custom volume unit I wrote, and the
>>>> output unit. Instead of the older Component Manager calls, I'm
>>>> putting it all together via AUGraphAddNode(),
>>>> AuGraphConnectNodeInput(), & AUGraphNodeInfo(). It all works fine
>>>> until I add a graphic EQ unit into the mix, and then I get no
>>>> output. The graph pulls from my input callback, but nothing out
>>>> the speakers. The EQ unit appears to load and get connected just
>>>> fine, stream formats set okay, I can even set the 10/31 band
>>>> property, get the property labels back and see how they change,
>>>> all with no errors returned. I'm not instantiating the UI, but was
>>>> planning to control it through properties.
>>>>
>>>> Is there some other initialization this unit needs, besides what
>>>> can be gleaned from the header files, or via auval? Are there
>>>> limitations as to what it can plugged in to? Is there something
>>>> else I'm missing? Clue is appreciated.
>>>>
>>>> thanks - dmt
>>>>
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>
>
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