Version 2 of Karaoke Surgeon contains many changes, refinement, and
improvement over the first version. Most of these changes have been driven by our customers. Generally
speaking, the biggest change is that the product is expanding from a single module to five modules.
The Main Editing Module builds upon the features found in Version 1 but adds several important features,
like automatic key, tempo and volume detection, a volume adjustment module and a file editing module that
enables users to edit (delete, cut, paste) the change the length of an existing file.
The newly added KCreator module allows users to create Karaoke files with lyrics starting from a raw audio
file. The third module, KRecorder, allows users to sing to a backing track, record their voice and pair it
with the background music to create a sung version of the backing track. The 4th module, KRemover
is an AI powered tool that removes lead vocals for songs, and the fifth module, Kconverter, processes and converts among different file formats. It can convert a single file or thousands of files at a time.
[Bucket 0] -> [ Key: "Apple" | Value: 100 ] -> [ Key: "Orange" | Value: 150 ] -> NULL [Bucket 1] -> NULL [Bucket 2] -> [ Key: "Banana" | Value: 200 ] -> NULL [Bucket 3] -> NULL Complete C Implementation
Add a so your dictionary can store integers, structs, or other custom data types as values.
Dictionary* dict_create(int size) Dictionary *dict = (Dictionary*)malloc(sizeof(Dictionary)); if (!dict) return NULL; dict->size = size; dict->count = 0; dict->buckets = (Entry**)calloc(size, sizeof(Entry*)); if (!dict->buckets) free(dict); return NULL;
Why 10007? Prime table sizes reduce clustering in many hash functions.
int main() Dictionary* my_dict = create_dictionary(); if (!my_dict) printf("Failed to initialize dictionary.\n"); return 1; // Insert Key-Value pairs insert(my_dict, "apple", "A round fruit with red or green skin"); insert(my_dict, "compiler", "A program that translates source code into machine code"); insert(my_dict, "hash", "A function that maps data to a fixed size"); // Search for keys printf("Looking up 'apple': %s\n\n", search(my_dict, "apple")); // Update an existing key printf("Updating 'apple'...\n"); insert(my_dict, "apple", "A delicious, crunchy fruit"); printf("New value for 'apple': %s\n\n", search(my_dict, "apple")); // Delete a key printf("Deleting 'compiler'...\n"); if (delete_key(my_dict, "compiler")) printf("'compiler' deleted successfully.\n"); // Confirm deletion const char* res = search(my_dict, "compiler"); printf("Looking up 'compiler': %s\n", res ? res : "Not Found"); // Clean up memory free_dictionary(my_dict); return 0; Use code with caution. Performance and Complexity Analysis Average Case Worst Case (High Collisions) Lookup Deletion Optimizing Performance To maintain the average time complexity: c program to implement dictionary using hashing algorithms
for (int i = 0; i < old_size; i++) Entry *curr = old_buckets[i]; while (curr) dict_put(dict, curr->key, curr->value); Entry *tmp = curr; curr = curr->next; free(tmp);
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
free(table->buckets); free(table);
To run this C program, you can use any standard C compiler (like GCC). [Bucket 0] -> [ Key: "Apple" | Value:
A good hash function distributes keys uniformly across the storage array. Uniform distribution minimizes collisions, which occur when two different keys generate the same index. For strings, polynomial rolling hash functions are highly effective. Collision Resolution
// The hash table – an array of pointers to Entry typedef struct Dictionary Entry **buckets; int size; // number of buckets (table_size) int count; // number of stored entries Dictionary;
/* Insert or update */ bool ht_insert(HashTable *ht, const char *key, int value) !key) return false; unsigned long idx = hash_djb2(key) % ht->capacity; Node *cur = ht->buckets[idx]; while (cur) if (strcmp(cur->key, key) == 0) cur->value = value; return true; /* updated */
A fixed-size array that stores the data pointer or structure. int main() Dictionary* my_dict = create_dictionary(); if (
If the hash function breaks down and channels every element into a single bucket, the structure degrades into a single linked list, causing operations to take linear time. Conclusion
// A key-value pair node typedef struct Entry char* key; int value; struct Entry* next; Entry;
| Operation | Average Case | Worst Case | |-----------|--------------|-------------| | Insert | O(1) | O(n) | | Search | O(1) | O(n) | | Delete | O(1) | O(n) |
Main Editing Module Features
Rips CD, VCD, and CDG discs- Opens most standard karaoke file formats including, audio, video,
VCD, CD+G, CD+G zipped, and bin files.
- Automatic key, tempo and volume detection
- Changes key, tempo, volume in real time
- Editing function enables the deletion of sections of a file, or
copying and pasting to add another verse, chorus, or section.
- 31 band EQ for applying EQ changes
- Uses Formant Preservation to reduce or eliminate the chipmunk or
munchkin sound of backing vocals
- Use highest quality audio algorithm to ensure high quality audio
after key or tempo change
- Save changes permanently. Files can be moved to and used in other
devices and programs
- Converts among and between common file formats.
- Retains lyrics of any file (song) with lyrics when changes are
made to such files.
Win 10 - Win 11
