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SoundFonts App Testers
Hello all! I am the developer of the SoundFonts app, and I am curious if anyone would like to be a tester for recent and future changes. My goal is to better understand any issues people have using the app, especially if they involve an app crash.
Visit https://testflight.apple.com/join/3POnXmKp to sign up.
You should be able to access the latest pre-release version with the following updates:
• Fixed potential crash at startup for new installations of the app
• Presets can now be hidden from view by tapping on "list" button in the info bar.
• Removed duplicate loading of font configuration causing display issues
• Additional UI improvements and bug fixes
Regards,
Brad Howes
Comments
Was just playing around with the app the other day. Great stuff! I was wondering if there was any intention to add some basic controls like volume, cutoff, etc.?
Hi @BradHowes,
first of all: How do you handle large sound fonts in your app? Disk streaming?
Cheers
Yes, I have been (slowly) working on these types of features, but there is still much to be done.
Regards,
Brad
The app relies on a component called AVAudioUnitSampler in Apple's AVFoundation framework to do the SF2 processing, but I would be surprised if they were not smart about only loading the samples for the active preset. My code quickly scans through the file to ensure that it is in a valid SF2 format, but I skip over the actual sample data. A smart engine would just record in memory file offset where each sample starts, and load them on-demand from disk.
Regards,
Brad Howes
Exactly but in this case I wouldn't expect too much smartness from Apple's code.
I'll try with large sound fonts anyway and let you know.
Thanks for getting back!
I just loaded up 100s of GBs of soundfonts and they played without any issue. stability is definitely not an issue I've had.
Can’t be a tester, but I wanted to tell you how much I enjoy the app.
It has become the dedicated home for all of my piano soundfonts.
Thanks for the kind words. Glad it is useful!
Regards,
Brad
@BradHowes
Thank you.
Now I have to find a really nice piano sound font.
Same. And more sounds too.
Happy to report no issues for me so far. Have tested with a variety of soundfonts and it's been stable and responsive in both standalone and AU. Nice one...!
Hi Brad, I am just downloading the Beta release in order to participate. Can the app access files stored on an external USB drive? Since I only have a 64GB iPad Pro, that is the only way to access large files, since they can’t be stored on the iPad itself. This is an oversight on the part of apps like Audioshare, which does not provide access to files on external devices, so I just wanted to check. Thanks.
David
@DSCB57 Beta-you (the user) should test things - like your question, and report back. Heh its the idea.
David,
Unfortunately, no. Currently, the app places a copy on the device. Not sure how much effort it would take to support this.
Regards,
Brad
6 months ago Audioshare had an update, and one of the bullet points says “Allows access to usb drives on iOS 13.”
Just to clarify: SoundFonts can see and access the file on the USB drive (I verified this), but it will make a copy and put the copy on the iOS device. I briefly scanned Apple dev doc about this, and they strongly recommend supporting accessing files where they live ("opening" action) over what SoundFonts currently does ("importing" action). I'm considering supporting this, but there is significant UI work to be done to convey to the user when a SF2 file is available to use immediately or needs to be somehow made available (downloading from iCloud or accessed from USB). This is the primary reason I went with the import option: less work on my part.
Brad
@BradHowes I think open in place makes sense for editors, media players, and other apps whose need for the file is purely temporary. It's more complicated for apps like SoundFonts, which basically install a file which becomes a preset, subject to intantaneous recall. You'd need to be able to request the missing drive, sort of like the early DOS days, "Please insert the disk marked MyData". I know GM have done it with Pure Synth, but that's a little different, since the app actually downloads the files from their server to the desired drive. It's more of a closed system. And once the files are on an external drive, the app will always require that drive in order to run.
Thanks Brad for the clarification. Thank goodness Sound Fonts needn’t be the size of regular .wav samples! Those can rapidly fill a 64GB storage, but hopefully that won’t be the case with SF file copies.
I very much agree with your analysis.
However, I will probably do some work in this area just to see what it involves. From a performer's point of view, accessing a SF2 file from an external device like iCloud or a thumb drive is asking for a world of hurt especially during a live session, so having an option to copy to local device is definitely something to have.
Regards,
Brad