• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
RE: Setting Sample Rates
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: Setting Sample Rates


  • Subject: RE: Setting Sample Rates
  • From: Jim Dolan <email@hidden>
  • Date: Tue, 15 Jan 2002 19:35:45 -0500

Thanks Bill -

>> If you're developing a driver for
>> hardware that will ship soon, we could possibly work something out with
you
>> that will work with these tags before the OS actually ships with the
>> support, but will then work when it does...
I am developing a software application, not a driver. I realize this would
be an awkward representation of the device, but am just inventing scenarios
to make sure that I can deal with them properly if they come up. There is
nothing inherently wrong with just showing all of the channels, and this
will most likely be my default.

>> (2) Do both analog and digital versions of the same stream
>> (3) Allow separation of data between analog and digital streams
What do these two descriptions mean? Multiple devices? Multiple Sources?
I don't have a device with multiple sources either - How do sources and
streams relate? If I set to a source, what does that change exactly, and
how does that impact streams...

>> I don't know that I see this as a valid distinction if the only
difference
>> is that one of the streams is analog and one digital. The fact that it is
>> the same device should mean that the samples will be locked together...
I only use analog and digital as an example. It could very well be a Mic
input and a line input, or spdif and aes-ubu. The distinction is in how the
information will be displayed to the user and which samples I will actually
be taking during the IOProcs. I don't want to show the user the all the
channels in the display. I also don't want to be taking samples from all the
streams if the user is really recording on only 1 of them.

Maybe I am making too much of this - but I want to fully understand how all
of these pieces fit together before I implement something that only works
until someone writes a new driver and uses some weird configuration.

Thanks
Jimmy D


-----Original Message-----

  • Follow-Ups:
    • Re: Setting Sample Rates
      • From: Bill Stewart <email@hidden>
  • Prev by Date: Re: Formats ?
  • Next by Date: SoundComponentData to AudioStreamBasicDescription
  • Previous by thread: Re: Setting Sample Rates
  • Next by thread: Re: Setting Sample Rates
  • Index(es):
    • Date
    • Thread