CN212061134U - USB sound card based on electron tube - Google Patents
USB sound card based on electron tube Download PDFInfo
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- CN212061134U CN212061134U CN202021031629.XU CN202021031629U CN212061134U CN 212061134 U CN212061134 U CN 212061134U CN 202021031629 U CN202021031629 U CN 202021031629U CN 212061134 U CN212061134 U CN 212061134U
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Abstract
The utility model discloses a USB sound card based on electronic tube, audio input interface are connected with input audio amplifier PA1 ' S input, input audio amplifier PA1 ' S output is divided into two the tunnel, and first the way is connected with input electronic tube G1 ' S input, codec A1 and microprocessor module U1 both way junction, be connected through the USB interface between microprocessor module U1 and the host computer PC1, codec A1 ' S the signal output that decodes divide into two the tunnel, and first the way is connected with output electronic tube G2 ' S input, and the second way is connected with output electronic tube G2 ' S output through controllable switch S2, output electronic tube G2 ' S output is connected with output audio amplifier PA2 ' S input, output audio amplifier PA2 ' S output and audio output interface connection. The full-open can improve the quality of sound processing and make the output audio signal more vivid.
Description
Technical Field
The utility model relates to a sound card technical field especially relates to a USB sound card based on electron tube.
Background
The sound card, also called audio card, is the most basic component in a computer multimedia system, and is a hardware for realizing the mutual conversion of sound waves/digital signals. The basic function of the sound card is to convert original sound signals from a microphone, a magnetic tape, or an optical disk and output the converted signals to sound equipment such as an earphone, a speaker, a loudspeaker, or a recorder, or to output sounds of a synthesized musical instrument through a Musical Instrument Digital Interface (MIDI). In the prior art, a transistor is generally used as a main device of a sound card, but the transistor has poor effect of processing an audio signal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how to provide a can improve the quality of sound treatment, make its USB sound card that changes and listen.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a USB sound card based on electron tube is characterized in that: the audio input interface is connected with the input end of an input audio amplifier PA1, the output end of the input audio amplifier PA1 is divided into two paths, the first path is connected with the input end of an input electronic tube G1, the second path is connected with the output end of an input electronic tube G1 through a controllable switch S1, the output of the input tube G1 is connected to the code signal input of the codec a1, the coder-decoder A1 is bidirectionally connected with a microprocessor module U1, the microprocessor module U1 is connected with an upper computer PC1 through a USB interface, the decoding signal output end of the coder-decoder A1 is divided into two paths, the first path is connected with the input end of the output electronic tube G2, the second path is connected with the output end of the output electronic tube G2 through the controllable switch S2, the output end of the output tube G2 is connected with the input end of an output audio amplifier PA2, and the output end of the output audio amplifier PA2 is connected with an audio output interface.
The further technical scheme is as follows: the sound card also comprises a power supply module and a clock module, wherein the power supply module and the clock module are used for providing working power supply and working clock for the coder-decoder A1 and the microprocessor module U1.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the sound card selects a valve as a main body for audio input or audio output; after the input audio signal is amplified and enters an electronic tube (which can be selected), the CODEC is sampled and encoded, and the encoded audio signal is transmitted to the PC through the XMOS; signals sent by the PC are decoded and restored into analog signals by the CODEC through the XMOS, the analog signals are transmitted to the electronic tube (optional), and finally the analog signals are amplified and driven to be output through audio frequency; the processing of the electronic tube can improve the quality of voice signal processing and make the voice more pleasant.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic block diagram of a sound card according to an embodiment of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1, the embodiment of the present invention discloses a USB sound card based on electronic tubes, which includes an audio input interface, the audio input interface is connected to the input end of an input audio amplifier PA1, the output end of the input audio amplifier PA1 is divided into two paths, the first path is connected to the input end of an input electronic tube G1, the second path is connected to the output end of an input electronic tube G1 through a controllable switch S1, the output end of the input electronic tube G1 is connected to the input end of a codec a1, the codec a1 is connected to a microprocessor module U1 in two ways, the microprocessor module U1 is connected to an upper computer PC1 through a USB interface, the output end of a codec a1 is divided into two paths, the first path is connected to the input end of an output electronic tube G2, the second path is connected to the output end of an output electronic tube G2 through a controllable switch S2, the output end of the output tube G2 is connected with the input end of an output audio amplifier PA2, and the output end of the output audio amplifier PA2 is connected with an audio output interface.
Further, the sound card further comprises a power supply module and a clock module, wherein the power supply module and the clock module are used for providing working power supply and working clock for the codec A1 and the microprocessor module U1.
The switch uses the electronic tube as the main body of audio input or audio output; after the input audio signal is amplified and enters an electronic tube (which can be selected), the CODEC is sampled and encoded, and the encoded audio signal is transmitted to the PC through the XMOS; signals sent by the PC are decoded and restored into analog signals by the CODEC through the XMOS, the analog signals are transmitted to the electronic tube (optional), and finally the analog signals are amplified and driven to be output through audio frequency; the processing of the electronic tube can improve the quality of voice signal processing and make the voice more pleasant.
Claims (2)
1. A USB sound card based on electron tube is characterized in that: the audio input interface is connected with the input end of an input audio amplifier PA1, the output end of the input audio amplifier PA1 is divided into two paths, the first path is connected with the input end of an input electronic tube G1, the second path is connected with the output end of an input electronic tube G1 through a controllable switch S1, the output of the input tube G1 is connected to the code signal input of the codec a1, the coder-decoder A1 is bidirectionally connected with a microprocessor module U1, the microprocessor module U1 is connected with an upper computer PC1 through a USB interface, the decoding signal output end of the coder-decoder A1 is divided into two paths, the first path is connected with the input end of the output electronic tube G2, the second path is connected with the output end of the output electronic tube G2 through the controllable switch S2, the output end of the output tube G2 is connected with the input end of an output audio amplifier PA2, and the output end of the output audio amplifier PA2 is connected with an audio output interface.
2. The tube-based USB sound card of claim 1, wherein: the sound card also comprises a power supply module and a clock module, wherein the power supply module and the clock module are used for providing working power supply and working clock for the coder-decoder A1 and the microprocessor module U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031629.XU CN212061134U (en) | 2020-06-08 | 2020-06-08 | USB sound card based on electron tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021031629.XU CN212061134U (en) | 2020-06-08 | 2020-06-08 | USB sound card based on electron tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212061134U true CN212061134U (en) | 2020-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021031629.XU Active CN212061134U (en) | 2020-06-08 | 2020-06-08 | USB sound card based on electron tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212061134U (en) |
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2020
- 2020-06-08 CN CN202021031629.XU patent/CN212061134U/en active Active
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