_basename <- basename; _dir <- dir
method virtual read : string array -> beam
- method virtual write : int array -> float array array array -> string array
+ method virtual write : rate array -> data -> string array
- method private concat : float array array array -> float array array =
- fun (origin : float array array array) ->
+ method private concat : data -> matrix =
+ fun (origin : data) ->
Array.map Array.concat (Array.map Array.to_list origin)
- method private channels : float array array array -> int array =
+ method private channels : data -> int array =
fun data ->
let get_channel = fun s ->
let l = Array.length s in
let files = Array.map Sndfile.openfile paths in
let frames = Array.map Int64.to_int
(Array.map Sndfile.frames files) in
- let rates = Array.map Sndfile.samplerate files in
+ let make_rate =
+ fun (denom : int) ->
+ fun (num : int) ->
+ new rate num denom in
+ let nums = Array.map Sndfile.samplerate files in
+ let rates = Array.map (make_rate 1) nums in
let create_container = fun l -> Array.create l 1. in
let containers = Array.map create_container frames in
let _ = array_map2 Sndfile.read files containers in
array_map2 (new signal) rates (Array.map stream2func containers) in
new beam signals
- method write : int array -> float array array array -> string array =
- fun (rates : int array) ->
- fun (output : float array array array) ->
+ method write : rate array -> data -> string array =
+ fun (rates : rate array) ->
+ fun (output : data) ->
let n = Array.length output in
let paths = Array.init n (fun i ->
_dir ^ _basename ^ (string_of_int (i + 1)) ^ ".wav") in
+ let get_freq = fun (r : rate) -> r#to_int in
+ let freqs = Array.map get_freq rates in
let files =
let channels = self#channels output in
let file_format = Sndfile.format
Sndfile.MAJOR_WAV Sndfile.MINOR_PCM_16 in
- let openwr = fun path -> fun channel -> fun rate ->
- Sndfile.openfile ~info:(Sndfile.RDWR, file_format, channel, rate) path in
- array_map3 openwr paths channels rates in
+ let openwr = fun path -> fun channel -> fun freq ->
+ Sndfile.openfile ~info:(Sndfile.RDWR, file_format, channel, freq) path in
+ array_map3 openwr paths channels freqs in
let data = self#concat output in
let _ = array_map2 Sndfile.write files data in
let values =
let convertor = new value Zero in
Array.map (convertor#of_float_array) data in
- new signal 0 (Array.get values)
+ new signal (new rate 0 1) (Array.get values)
method read : string array -> beam =
fun (paths : string array) ->
let signals = Array.map self#csvread files in
new beam signals
- method write : int array -> float array array array -> string array =
- fun (rates : int array) ->
- fun (data : float array array array) ->
+ method write : rate array -> data -> string array =
+ fun (rates : rate array) ->
+ fun (data : data) ->
let paths =
let n = Array.length data in
let path_pattern = fun i ->
wave#set _dir _basename;
csv#set _dir _basename
- method write : int array -> float array array array -> string array =
- fun (rates : int array) ->
- fun (data : float array array array) ->
+ method write : rate array -> data -> string array =
+ fun (rates : rate array) ->
+ fun (data : data) ->
if _format = "" then
raise (Invalid_argument "output format unset.")
else if _format = "wav" then