Jerry ac692n --- prompt tone compression and modification

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Prompt sound modification and sound source compression

Prompt tone modification

Basic prompt tone modification , Such as Bluetooth mode prompt tone , Successful connection , Disconnect and other prompt tones , It's all in \post_build\flash\tone_resource Change under folder ：

Change the prompt tone you are going to modify to the same file name , Then replace the corresponding file .

Open this folder ：

these MP3 Files are all prompt sound files used in the project . Bluetooth mode prompt tone , Prompt tone for successful connection , Disconnect prompt tone, etc . If modification is needed , Directly replace the sound source files to be changed with these files .

Note that the prompt sound file is MP3 file , And use a compression tool to compress the sound source file as small as possible （ Conditions that do not affect sound quality ）, Because the chip Flash Space is limited , Unable to put down too large prompt sound file . Compression tools are recommended ： goldwave

When the replacement is complete , Return to parent directory , double-click “download.bat”, You can generate new firmware .

Delete the prompt tone

When making products , You don't need to use so many prompt tones , How to delete it ？

Not directly delete the prompt sound source file . Need to be in download.bat Delete in batch .

Open in Notepad download.bat, You can see that these prompt sound files are called in batch processing ：

these .mp3 The ending file is the prompt sound , If the project is just a pure Bluetooth function , No, U There is no disk function AUX and FM function , So you can take music.mp3,linein.mp3,radio.mp3 Wait for other prompt tones to be deleted , To save Flash Space .

Common prompt tone instructions

0~9.mp3	Call number prompt tone
bt.mp3	Bluetooth mode prompt tone
connect.mp3	Bluetooth connection successful
disconnect.mp3	Bluetooth disconnected
linein.mp3	AUX Pattern
music	U Plate and T Card mode
radio	FM Pattern
pc.mp3	Sound card mode
warning.mp3	Low power tone
power_off.mp3	Soft shutdown prompt tone

 

Sound source compression

I usually use goldware Software , You can search and download online .