Probably should have mentioned this is Mac, not iOS. Yes, there are Audio Units, but they’re not really what I’m after. You can’t simply create a generator audio unit and use it in an app to generate tones (as far as I’m aware) - it has to be part of the whole Core Audio signal chain. I’m looking for a much higher level approach if possible. I’m thinking perhaps AVAudioPlayer might be suitable, as it has an init method that takes an NSData object that is a sound buffer. I can definitely make one filled with sine values, but as usual the documentation lets me down - it states that the buffer must be formatted according to the supported formats listed in "Multimedia Programming Guide”, but I can find no such guide and the mention on the page isn’t a link.
—Graham > On 29 May 2016, at 3:36 PM, Jonathan Hull <jh...@gbis.com> wrote: > > This is way out of my area of expertise, but it appears you want AudioUnits: > http://www.cocoawithlove.com/2010/10/ios-tone-generator-introduction-to.html > > Thanks, > Jon > > >> On May 28, 2016, at 8:24 PM, Graham Cox <graham....@bigpond.com> wrote: >> >> Hi all, >> >> I’m looking for general pointers to the simplest/quickest way to generate an >> audio tone (sine wave) of a given frequency and duration. Most of the audio >> APIs seem concerned with playing samples rather than generating tones, so >> it’s not immediately obvious where to look. >> >> —Graham _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
