<Sound Dev> MIDI to audio files

Alan Snyder javalists at cbfiddle.com
Mon Jan 7 23:41:23 UTC 2019


I’m not sure if you are agreeing that it would be useful or arguing against making it public.

  Alan



> On Jan 7, 2019, at 1:39 PM, Sergey Bylokhov <Sergey.Bylokhov at oracle.com> wrote:
> 
> For sure this is not cancellation of functionality, because it wasn't a public API.
> 
> Currently it is a implementation detail of SoftMidiAudioFileReader and
> it looks useful since it provides the same functionality + the code in
> the getAudioInputStream(Sequence) method is not so trivial.
> 
> On 07/01/2019 13:21, Alan Snyder wrote:
>> It is probably not a performance issue, but what is the point of concealing that obvious functionality?
>>   Alan
>>> On Jan 7, 2019, at 12:55 PM, Sergey Bylokhov <Sergey.Bylokhov at oracle.com> wrote:
>>> 
>>> On 07/01/2019 12:29, Alan Snyder wrote:
>>>> Your suggestion works and requires less code, but it is not the best fit for my use case.
>>> 
>>> Yes, in this case you will need to write data to something like ByteArrayOutputStream, and read it back by AudioSystem.
>>> The code will be small comparing to AudioSynthesizer, is the coping of data is a really a big problem and does it play a role in slowness the program?
>>> 
>>> 
>>>> In my case, I have already constructed a Sequence. To use your suggestion, I must convert the sequence to MIDI data so that I can provide it as an InputStream to AudioSystem, where the first thing that happens is that the data is parsed back into a Sequence.
>>>> I see no public way to get a Sequence directly to SoftMidiAudioFileReader.
>>>>   Alan
>>>>> On Jan 7, 2019, at 11:20 AM, Sergey Bylokhov <Sergey.Bylokhov at oracle.com> wrote:
>>>>> 
>>>>> Hi, Alan.
>>>>> 
>>>>> I guess it should work using AudioSystem, which for midi files
>>>>> should work on top of com.sun.media.sound.SoftMidiAudioFileReader
>>>>> 
>>>>> On 06/01/2019 18:19, Alan Snyder wrote:
>>>>>> As far as I can tell, the ability to synthesize audio into files from MIDI was lost during the great Java modularization due to the failure to export the AudioSynthesizer interface.
>>>>>> Is there some reason this has not been fixed?
>>>>>> See JDK-8170518 <https://bugs.openjdk.java.net/browse/JDK-8170518>, which I filed in 2016.
>>>>>>   Alan
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Best regards, Sergey.
>>>>> 
>>> 
>>> 
>>> -- 
>>> Best regards, Sergey.
>>> 
> 
> 
> -- 
> Best regards, Sergey.
> 



More information about the sound-dev mailing list