From: Jason Timm <jasontimm@me.com>
Date: May 19, 2017 at 4:58:58 PM PDT
To: Csound <csound@lists.bath.ac.uk>
Subject: iOS flac - number of channels

Hi list,

A filenchnls query of a stereo flac on iOS returns 1.0.

0dBFS level = 32768.0

--Csound version 6.08 (float samples) Jan  6 2017 

[commit: 4af675aea083a155afd78fe831039dda00d7e267]

libsndfile-1.0.21

UnifiedCSD:

STARTING FILE

Creating options

Creating orchestra

scoreless operation

Elapsed time at end of orchestra compile: real: 0.005s, CPU: 0.004s

sorting score ...

... done

Elapsed time at end of score sort: real: 0.006s, CPU: 0.004s

graphics suppressed, ascii substituted

0dBFS level = 1.0

orch now loaded

audio buffered in 1024 sample-frame blocks

writing 4096-byte blks of shorts to test.aif (AIFF)

SECTION 1:

new alloc for instr 1:

instr 1:[m  #i0 = 1.000[m

[m

Same file run in terminal on macOS:

0dBFS level = 32768.0

--Csound version 6.09 (double samples) May 19 2017 

[commit: ba0e1bebeeab4279d8aebfef0b4d19d5e99fe9d6]

libsndfile-1.0.28

UnifiedCSD:

STARTING FILE

Creating options

Creating orchestra

scoreless operation

rtaudio: PortAudio module enabled ... 

using callback interface

rtmidi: PortMIDI module enabled

Elapsed time at end of orchestra compile: real: 0.002s, CPU: 0.002s

sorting score ...

... done

Elapsed time at end of score sort: real: 0.002s, CPU: 0.002s

graphics suppressed, ascii substituted

0dBFS level = 1.0

orch now loaded

audio buffered in 1024 sample-frame blocks

writing 4096-byte blks of shorts to test.aif (AIFF)

SECTION 1:

new alloc for instr 1:

instr 1:  #i0 = 2.000

I’m not sure if flac file format supported with csound?

Thanks,

Jason

No FLAC support on iOS, I think. That’s down to libsndfile, not Csound.
========================
Prof. Victor Lazzarini
Dean of Arts, Celtic Studies, and Philosophy,
Maynooth University,
Maynooth, Co Kildare, Ireland
Tel: 00 353 7086936
Fax: 00 353 1 7086952 

> On 20 May 2017, at 16:31, Jason Timm  wrote:
> 
> 
> 
> 
> Begin forwarded message:
> 
>> From: Jason Timm 
>> Date: May 19, 2017 at 4:58:58 PM PDT
>> To: Csound 
>> Subject: iOS flac - number of channels
>> 
>> Hi list,
>> 
>> A filenchnls query of a stereo flac on iOS returns 1.0.
>> 
>> 0dBFS level = 32768.0
>> --Csound version 6.08 (float samples) Jan  6 2017 
>> [commit: 4af675aea083a155afd78fe831039dda00d7e267]
>> libsndfile-1.0.21
>> UnifiedCSD:
>> STARTING FILE
>> Creating options
>> Creating orchestra
>> scoreless operation
>> Elapsed time at end of orchestra compile: real: 0.005s, CPU: 0.004s
>> sorting score ...
>> 	... done
>> Elapsed time at end of score sort: real: 0.006s, CPU: 0.004s
>> graphics suppressed, ascii substituted
>> 0dBFS level = 1.0
>> orch now loaded
>> audio buffered in 1024 sample-frame blocks
>> writing 4096-byte blks of shorts to test.aif (AIFF)
>> SECTION 1:
>> new alloc for instr 1:
>> instr 1:[m  #i0 = 1.000[m
>> [m
>> 
>> 
>> Same file run in terminal on macOS:
>> 
>> 0dBFS level = 32768.0
>> --Csound version 6.09 (double samples) May 19 2017 
>> [commit: ba0e1bebeeab4279d8aebfef0b4d19d5e99fe9d6]
>> libsndfile-1.0.28
>> UnifiedCSD:
>> STARTING FILE
>> Creating options
>> Creating orchestra
>> scoreless operation
>> rtaudio: PortAudio module enabled ... 
>> using callback interface
>> rtmidi: PortMIDI module enabled
>> Elapsed time at end of orchestra compile: real: 0.002s, CPU: 0.002s
>> sorting score ...
>> 	... done
>> Elapsed time at end of score sort: real: 0.002s, CPU: 0.002s
>> graphics suppressed, ascii substituted
>> 0dBFS level = 1.0
>> orch now loaded
>> audio buffered in 1024 sample-frame blocks
>> writing 4096-byte blks of shorts to test.aif (AIFF)
>> SECTION 1:
>> new alloc for instr 1:
>> instr 1:  #i0 = 2.000
>> 
>> 
>> I’m not sure if flac file format supported with csound?
>> 
>> Thanks,
>> Jason
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I thought we had added flac on iOS, but it's been a long time we should recheck it.