Roman-Port

Creates L+R and L-R channels:

ffmpeg -i test.wav -filter_complex "[0:a]channelsplit=channel_layout=stereo[l][r];[r]volume=volume=-1[ri];[l][ri]amix=inputs=2[diff];[0:a]channelsplit=channel_layout=stereo[l][r];[l][r]amix=inputs=2:weights=0.5[add]" -map "[add]" add.wav -map "[diff]" diff.wav

Merges L+R and L-R back into a stereo file, identical to the original input:

ffmpeg -i add.wav -i diff.wav -filter_complex "[1:a]volume=volume=-1[diffi];[0:a][1:a]amix=inputs=2[l];[0:a][diffi]amix=inputs=2[r];[l][r]join=inputs=2:channel_layout=stereo[outpre];[outpre]volume=volume=2[out]" -map "[out]" testout.wav

Roman-Port

ffmpeg -i input.wav -filter_complex "[0:a]channelsplit=channel_layout=stereo[l][r];[r]volume=volume=-1[ri];[l][ri]amix=inputs=2[diff]" -map "[diff]" diff.wav

Roman-Port

Hi! Quick tip I found out for anyone (or myself) who accidentally piped or concatenated important data to a file with Powershell and found that text was mangled. You might see "’" converted to "ΓÇÖ" or "Mötley Crüe" converted to "M├╢tley Cr├╝e" for example.

To fix, simply run this command in Powershell after editing the input and output filenames:

```
Get-Content [input] | Out-File [output] -Encoding Oem
```

Roman-Port

using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
using System.Drawing;

namespace DddProperyEditorGUI.Util
{
    /* 
     * Mostly based off of https://sites.google.com/a/nomad-net.info/dev/articles/double-buffered-tree-and-list-views
     * Updated to work with Windows 10 by RomanPort

Roman-Port

#include "core.h"
#include "main.h"
#include "fatfs.h"

#define RECORDER_STATUS_DISABLED 0  // Recorder is off.
#define RECORDER_STATUS_RECORDING 1 // Recording normally.

#define RECORDER_BUFFER_STATUS_AVAILABLE 0 // Buffer is available for writing
#define RECORDER_BUFFER_STATUS_PENDING   1 // Waiting to write to disk

Roman-Port

#include <string.h>
#include <sys/unistd.h>
#include <sys/stat.h>
#include <driver/i2s.h>

#define SAMPLE_RATE 325000
#define BITS_PER_SAMPLE 16

uint8_t buffer[1024];

Roman-Port

#include <string.h>
#include <sys/unistd.h>
#include <sys/stat.h>
#include "esp_vfs_fat.h"
#include "sdmmc_cmd.h"
#include "driver/sdmmc_host.h"
#include <driver/i2s.h>

static const char *TAG = "example";

Roman-Port

void run_benchmark() {
    int target = 2600000 * 5;
    int blockSize = sizeof(buffer);
    while (blockSize >= 256) {
        //Do benchmark
        FILE* output = fopen("/sdcard/out.bin", "wb");
        int64_t start = esp_timer_get_time();
        int remaining = target;
        while (remaining > 0) {
            remaining -= fwrite(buffer, 1, blockSize > remaining ? remaining : blockSize, output);

Roman-Port

#include <string.h>
#include <sys/unistd.h>
#include <sys/stat.h>
#include "esp_vfs_fat.h"
#include "sdmmc_cmd.h"
#include "driver/sdmmc_host.h"
#include <driver/i2s.h>

static const char *TAG = "example";

Roman-Port

// PLEASE DO NOT COPY+PASTE THIS, PLEASE!!! 

// prints the biggest gainers (and ties) in the dataset
private static void examplePrintSummaryVar(Quote[] data) {
    //Set up
    double maxValue = 0; // stores the maximum value we've seen in the dataset so far
    Quote[] ties = new Quote[data.length]; // stores all of the elements with the maximum value we've seen (PS: Using a list if you know how is more efficient)
    int tiesCount = 0; // stores the number of ties we've seen so far

    //Loop through everything we have in data