Golang中的Java.io.DataInputStream.readFloat（）

Question

I am writing a program that emulates the functionality of the following Java program:

public class MFCC {
  public static void main(String[] args) throws IOException, InterruptedException, Exception {
    System.out.println("MFCC Coefficient Extractor");
    // Executables
    String sox = "/usr/bin/sox";
    String x2x = "/usr/local/bin/x2x";
    String frame = "/usr/local/bin/frame";
    String window = "/usr/local/bin/window";
    String mcep = "/usr/local/bin/mcep";
    String swab = "/usr/local/bin/swab";

    // Command Line Options
    String WavFile = "/output/audio.wav";
    String RawFile = WavFile + ".raw";
    String frameLength = "400";
    String frameLengthOutput = "512";
    String framePeriod = "80";
    String mgcOrder = "24";
    String mfccFile = WavFile + ".mfc";

    String soxcmd = sox + " " + WavFile + " " + RawFile;
    launchProc(soxcmd, "sox", WavFile);

    // MFCC
    String mfcccmd = x2x + " +sf " + WavFile + " | " + frame + " -l " + frameLength + " -p " + framePeriod + " | " + window
        + " -l " + frameLength + " -L " + frameLengthOutput + " -w 1 -n 1 | " + mcep + " -a 0.42 -m " + mgcOrder
        + " -l " + frameLengthOutput + " | " + swab + " +f > " + mfccFile;

    launchBatchProc(mfcccmd, "getSptkMfcc", WavFile);

        int numFrames;
    DataInputStream mfcData = null;
        Vector<Float> mfc = new Vector<Float>();

        mfcData = new DataInputStream(new BufferedInputStream(new FileInputStream(mfccFile)));
        try {
            while (true) {
                mfc.add(mfcData.readFloat());
            }
        } catch (EOFException e) {
        }
        mfcData.close();

    System.out.println("Coefficient vector length: " + mfc.size());
    System.out.println("The coefficients are: " + mfc);
  }
}

(Run it by cloning this repo and running docker build -t javamfcc:latest . && docker run --name javamfcc --rm -v $PWD/output:/output javamfcc:latest)

The basic gist of what this program is by running an audio file through a list of pipes of executables provided by the SPTK project, and parsing the final output by reading 4 bytes as a float, and appending those values to a single vector.

I more or less have a good idea of how to get the pipes, but am having trouble figuring out how I can loop through the final *io.Reader and read every 4 bytes as a float (as is accomplished in Java.io.DataInputStream.readFloat()) done with the following code:

package main

import "fmt"

func main() {
    fileName := "/output/audio.wav"
    frameLength := 400
    frameLengthOutput := 512
    framePeriod := 80
    mgcOrder := 24

    mfcc := exec.Command("mfcc.sh", "/output/"+fileheader.Filename, strconv.Itoa(frameLength), strconv.Itoa(frameLengthOutput), strconv.Itoa(framePeriod), strconv.Itoa(mgcOrder))
    mfccout, mfccerr := mfcc.Output()
    if mfccerr != nil {
        log.Println("Error executing mfcc.sh")
        panic(mfccerr)
    }

    b := bytes.NewReader(mfcc)

}

mfcc.sh

#!/bin/bash
filename=$1
frameLength=$2
frameLengthOutput=$3
framePeriod=$4
mgcOrder=$5

echo "filename: "$filename
echo "frameLength: "$frameLength
echo "frameLengthOutput: "$frameLengthOutput
echo "framePeriod: "$framePeriod
echo "mgcOrder: "$mgcOrder
x2x +sf $filename | frame -l $frameLength -p $framePeriod | window -l $frameLength -L $frameLengthOutput -w 1 -n 1 | mcep -a 0.42 -m $mgcOrder -l $frameLengthOutput | swab +f