MIRAN - Changing the Music
First, obtain some nice, royalty-free, music! (which is often more difficult than you might think!). This might be a MP3 or WAV file, so we will need to convert it to the audio format used by MIRAN:
- Bit rate: 64 kbps
- Sample size: 8 bit
- Sample rate: 8 kHz
- Channels: 1 (mono)
- Format: CCITT A-Law (μ-Law)
Filenames must be in a 8.3 format (ie nutcrack.mp3).
Files must be in A-law (.ALW) or μ-law (.ULW) format, depending on the system's configuration to play.
Use the Goldwave software (previously downloaded and installed on the PC) to convert the audio file to a format compatible with the MIRAN card. (http://www.goldwave.com). This program can also be used to decrease (or increase) the sound level, if the music is too loud (or soft). Set the Goldwave Attributes tab to: A-Law (or μ-law), mono, 8000 Hz, 64Kbps.
Download music files to a thumb drive and move/copy them to the PC with the Goldwave program installed.
Open Goldwave:
Click: File ➤ Open ➤ Navigate to the Music file, and click OK.
![image001.jpg](/images/miran/image001.jpg)
The file will open, and a waveform display will appear.
Change the sample rate:
➤ Effect ➤ Resample ➤ 8000
![image002.jpg](/images/miran/image002.jpg)
Click OK
![image003.jpg](/images/miran/image003.jpg)
Click OK
![image005.jpg](/images/miran/image005.jpg)
Change the "Save as type" to Raw
And the "Attributes" to u-law, mono
Click Save
Click Yes
Exit Goldwave
Rename the .snd files to have an extention with .ulw. The filename must be in a 8.3 format.
![image007.jpg](/images/miran/image007.jpg)
Copy the ulw files to a compact flash card, and place the card in the Miran card face
plate (located in the IPE shelf).
The Miran card has a removable drive A (compact flash) and an internal drive C.
We will later copy these files to the internal drive C:, from where they will play.
Logging into the Miran Card:
Open Internet Explorer, and enter the Miran IP Address in the address field, eg: http://10.10.10.11
A login window will appear.
![image008.jpg](/images/miran/image008.jpg)
Username: admin
Password: admin000
Within the Miran user interface...
Move (or copy) the files that are on drive A to Drive C.
➤ File System
➤ Copy
![image009.jpg](/images/miran/image009.jpg)
The files are now on the Miran card on drive C (internal drive).
To play the music, it must be assigned to a channel and calendar.
The channel is always 0 for hold music.
Create a descriptor:
The descriptor contains the desired date and time information.
The calendar ties the music and the descriptor together.
If no descriptor is used, put * in the date and * in the time fields to always play the music. The Asterisks means any date or any time (wildcard).
You can still use the asterisks as a wildcard in the time field to signify all day.
![image010.jpg](/images/miran/image010.jpg)
Calendar Assignment:
The Filename should start from the C: drive
The Channel is always 0 for hold music.
![image011.jpg](/images/miran/image011.jpg)
If the new assignment conflicts with an existing assignment, use View and Modify/Delete to remove the unwanted assignment.
In View, the currently active assignment will be bold.
![image012.jpg](/images/miran/image012.jpg)
This image shows different music for each week of December.
![image013.jpg](/images/miran/image013.jpg)
Logout when finished.
![image014.jpg](/images/miran/image014.jpg)
End of procedure!