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发表于 2022-5-6 17:07:47
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I am trying to make use of the Audio output from DMG19108C116_02WTR. I have created a 16.WAE file which contains around 20 WAV files. Configured the CFG file with necessary changes like hex value 0x78 @ address 0x05 and hex value 0x10 @ location 0x07 . Connected 4ohm 5W speaker , but the audio output is very low in a way that even at three feet distance we could not here the sound.
Speaker has been checked with different audio source and found that the speaker is perfect. Measured the wire resistance between speaker and audio output and the resistance is almost 0.1 ohm.
So no speaker issue and no cable issue but still the output is not at all audible. Am I missing any other setting ?
We used LM386 with 1W speaker for the same wav files in our older system and the sound is audible even at 15 feet difference.
I tried with two LCDs , but the end result same. Do I need to introduce another amplifier like LM386 between audio output from LCD and speaker? |
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