Find out memoery consumed by sound sample?

BlitzMax Forums/BlitzMax Programming/Find out memoery consumed by sound sample?

Grey Alien

(Posted 2007) [#1]

Hi, is there a way to get the length in bytes of a sound sample in memory? For example, I may have loaded it as an ogg or wav, and I'd like to know how much RAM it consumes. Thanks!

tonyg

(Posted 2007) [#2]

This does it.

Grey Alien

(Posted 2007) [#3]

Thanks tonyG, looks like I need this bit:

	'determine mono/stero
	If sndSample.format = SF_MONO8 Or sndSample.format = SF_MONO16LE Or sndSample.format = SF_MONO16BE Then
		channels = 1
	Else
		channels = 2
	End If
		
	'determine bitrate & calculate size
	If sndSample.format = SF_MONO8 Or sndSample.format = SF_STEREO8 Then
		bitRate = 8
		sampleSize = sndSample.length * channels
	Else
		bitRate = 16
		sampleSize = sndSample.length * channels * 2
	End If

I wonder if there are any other formats missing that I should include?

tonyg

(Posted 2007) [#4]

From the readily available documentation :

Function CreateAudioSample:TAudioSample( length,hertz,format )
Returns An audio sample object.
Description Create an audio sample.
Information length is the number of samples to allocate for the sample. hertz is the frequency in samples per second (hz) the audio sample will be played. format should be one of:

Format Description
SF_MONO8 Mono unsigned 8 bit
SF_MONO16LE Mono signed 16 bit little endian
SF_MONO16BE Mono signed 16 bit big endian
SF_STEREO8 Stereo unsigned 8 bit
SF_STEREO16LE Stereo signed 16 bit little endian
SF_STEREO16BE Stereo signed 16 bit big endian

<edit> Although checking the code they get converted down.

Grey Alien

(Posted 2007) [#5]

If it wasn't for me you'd have nothing to post ;-) Thx!